Card edge connector

Abstract

The utility model provides a card edge connector, and the connector comprises a pedestal, the top surface is provided with a clamping groove, one end of the pedestal is provided with a tail wing part, the pedestal is used for the installation of a mainboard, and the clamping groove is used for the insertion of a board card; the ear clip is rotationally connected to the tail wing part, the ear clip has an open state and a closed state which are rotationally switched, and when the ear clip is in the closed state, the ear clip limits the board card inserted into the clamping groove; wherein the empennage part is provided with supporting legs, and the supporting legs are used for abutting against the main board and supporting the empennage part. In the process that a user pokes the ear clip, the ear clip can apply pressure to the empennage part, the empennage part is supported through the supporting legs, the mechanical strength and the pressure bearing capacity of the empennage part are improved, the empennage part deforms or is damaged in the stress process, and the service life of equipment is effectively prolonged.

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] Currently, many computer motherboards are equipped with edge connectors, which can be used to plug in cards such as graphics cards and memory sticks to expand the computer's functions. Edge connectors typically include a base and an ear clip. The base is provided with a slot for plugging in the card, and the ear clip is rotatably provided at one end of the base. The ear clip has an open state and a closed state that can be switched by rotation. When the ear clip is in the open state, the card can be inserted into or removed from the base. After the card is inserted into the base, the ear clip can be rotated to the closed state to limit the card. In this way, the user needs to turn the ear clip to rotate when inserting or removing the card. However, because the ear clip needs to be subjected to force frequently, the end of the base close to the ear clip is prone to damage, which affects the service life of the device. Utility Model Content

[0003] In view of the above, it is necessary to provide a card edge connector that has the effect of extending the service life of the device.

[0004] An embodiment of the present application provides a card edge connector, comprising: a base, a top surface of which is provided with a card slot, a tail wing portion is provided at one end of the base, the base is used to be installed on a mainboard, and the card slot is used for plugging a board into; an ear buckle, rotatably connected to the tail wing portion, the ear buckle has an open state and a closed state that can be switched by rotation, and when the ear buckle is in the closed state, the ear buckle limits the board plugged into the card slot; wherein, the tail wing portion is provided with a supporting foot, the supporting foot is used to abut against the mainboard and support the tail wing portion.

[0005] In some embodiments, the lower portion of the tail wing portion extends downward to form a supporting foot, and the base, the supporting foot and the tail wing portion are integrally formed.

[0006] In some embodiments, the tail wing portion is provided with a fixing slot for inserting a board card portion; the ear buckle has a rotating portion, the rotating portion is provided in the fixing slot, and the rotating portion is rotatably connected to the tail wing portion through a rotating shaft; the rotating portion is provided with a receiving slot, and the receiving slot is used for inserting a board card located in the fixing slot.

[0007] In some embodiments, the groove wall of the fixing groove is provided with a convex rib, the convex rib has a first positioning surface, and the first positioning surface is located in the rotation path of the rotating part; the rotating part is provided with a first mating surface; when the ear buckle is rotated from a closed state to an open state, the first positioning surface is abutted against the first mating surface to limit the ear buckle from continuing to rotate.

[0008] In some embodiments, the ear button also has a limiting portion, which is arranged on the side of the rotating portion, and the limiting portion is provided with a first contact surface; the end of the tail wing portion away from the base is located between the limiting portion and the rotating portion, and is provided with a first stop surface, and the first stop surface is located in the rotation path of the limiting portion; when the ear button is rotated from a closed state to an open state, the first positioning surface abuts against the first mating surface along a first direction, and the first stop surface abuts against the first contact surface along a second direction to limit the ear button from continuing to rotate, and the first direction is different from the second direction.

[0009] In some embodiments, the convex rib has a second positioning surface, the second positioning surface is located in the rotation path of the rotating part, and an angle is formed between the first positioning surface and the second positioning surface;

[0010] The rotating portion is provided with a second mating surface; when the ear buckle is rotated from the open state to the closed state, the second positioning surface abuts against the second mating surface to limit the ear buckle from further rotation.

[0011] In some embodiments, the ear clip also has a force-bearing portion, which is arranged at the upper end of the rotating portion. A slot is formed between the force-bearing portion, the limiting portion and the rotating portion. The slot is used for inserting one end of the tail wing portion. The bottom surface of the force-bearing portion is formed with a second contact surface; the top surface of the tail wing portion is formed with a second stop surface, and the second stop surface is located in the rotation path of the force-bearing portion; when the ear clip rotates from an open state to a closed state, the second stop surface is pressed against the second contact surface to limit the ear clip from continuing to rotate.

[0012] In some embodiments, the limiting portion is provided with a snap-fitting protrusion protruding in a direction close to the slot, and a snap-fitting groove is provided on the side of the tail wing portion; when the ear buckle is rotated from an open state to a closed state, the snap-fitting protrusion is snapped into the snap-fitting groove.

[0013] In some embodiments, the groove wall of the fixing groove is provided with an installation groove, the installation groove is connected to the top surface of the tail wing to form an installation opening, a stop block is provided in the installation groove, a rotation hole is formed between the stop block and the bottom of the installation groove, and the rotating shaft is provided in the rotation hole.

[0014] In some embodiments, the thickness of the stopper gradually decreases toward the installation opening to form an inclined surface, and the rotating shaft is provided with a wedge-shaped surface adapted to the inclined surface.

[0015] The card edge connector provided in the embodiment of the present application has a structure in which the ear clip exerts pressure on the tail wing portion when the user turns the ear clip. The present application supports the tail wing portion through supporting feet, thereby improving the mechanical strength and pressure bearing capacity of the tail wing portion. The tail wing portion does not deform or damage during the force-bearing process, thereby effectively extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the action of inserting the board provided in this application into the card edge connector.

[0017] Figure 2 This is a structural diagram of the card edge connector provided in this application when it is in an open state.

[0018] Figure 3 This is a structural diagram of the card edge connector provided in this application when it is in a closed state.

[0019] Figure 4 This is a schematic diagram of the structure of the base, tail wing and support feet provided in this application.

[0020] Figure 5 This is a schematic diagram of the structure of the ear clip provided in this application.

[0021] Figure 6 This is a cross-sectional schematic diagram of the base and tail wing provided in this application.

[0022] Figure 7 This is a structural schematic diagram of the ear clip provided in this application from another perspective.

[0023] Figure 8 Schematic diagram of the force exerted by the first positioning surface and the first stopping surface against the ear buckle provided in this application.

[0024] Description of main component symbols

[0025] Card Edge Connector 100

[0026] Base 10

[0027] Card slot 11

[0028] Ear studs 20

[0029] Shaft 21

[0030] Wedge surface 211

[0031] Tail wing 30

[0032] Fixed slot 31

[0033] Snap-fit ​​groove 32

[0034] Mounting slot 33

[0035] Rotating hole 331

[0036] Block 332

[0037] Inclined surface 333

[0038] First stop surface 34

[0039] Second stop surface 35

[0040] Boss 36

[0041] Support foot 40

[0042] rib 50

[0043] Give way plane 51

[0044] First positioning surface 52

[0045] Second positioning surface 53

[0046] Rotating portion 60

[0047] Accommodation groove 61

[0048] Linking block 62

[0049] Mating surface 63

[0050] Force bearing part 70

[0051] Connection slot 71

[0052] Limit block 72

[0053] Second contact surface 73

[0054] Handle 74

[0055] Limiting portion 80

[0056] Slot 81

[0057] Snap-fit ​​protrusion 82

[0058] First contact surface 83

[0059] Board 200

[0060] Connecting portion 201

[0061] Section 1, 201a

[0062] Section 201b

[0063] Section 3 201c

[0064] Fixed bayonet 202

[0065] Motherboard 300

[0066] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0067] In the description of the embodiments of the present application, technical terms such as "first" and "second" 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.

[0068] In the descriptions of directions in the embodiments of this application, terms such as "top," "bottom," "upper," and "lower" are used with reference to the fixed objects of the product in actual application. For example, the card edge connector provided in this application can be installed on a motherboard. For ease of understanding, the following description uses the motherboard as a reference. That is, the side of the card edge connector facing the motherboard is defined as the bottom side, the side of the card edge connector facing away from the motherboard is defined as the top side, and so on.

[0069] In this application, unless otherwise specified or limited, the terms "connect," "dispose," and "fix" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including," "having," and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0071] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0072] An embodiment of the present application provides a card edge connector.

[0073] like Figure 1 This is a schematic diagram of the action of inserting the board provided in this application into the card edge connector. Figure 2 This is a structural diagram of the card edge connector provided in this application when it is in an open state. Figure 3 This is a structural diagram of the card edge connector provided in this application when it is in a closed state.

[0074] like Figures 1 to 3As shown, the card edge connector 100 can be used in computer equipment. Specifically, the card edge connector 100 can be mounted on the computer's motherboard 300, which includes a circuit board and electronic components disposed thereon. A card 200 can be inserted into the card edge connector 100 to electrically connect the card 200 to the motherboard 300, thereby expanding the functionality of the computer.

[0075] In this embodiment, the card edge connector 100 may be a PCI-e connector, and the board 200 may be a graphics card. A plug-in portion 201 is provided on one side of the board 200. The plug-in portion 201 of the board 200 can be inserted into the card edge connector 100 to establish an electrical connection. The plug-in portion 201 of the board 200 is provided with a notch that divides the plug-in portion 201 into multiple sections. For example, the plug-in portion 201 of the board 200 is divided into a first section 201a, a second section 201b, and a third section 201c. The first section 201a and the third section 201c are located at opposite ends of the plug-in portion 201, respectively. The second section 201b is located in the middle of the plug-in portion 201. The second section 201b is provided with a conductive contact, and the edge of the third section 201c is provided with a fixing latch 202.

[0076] Figure 4 This is a schematic diagram of the structure of the base, tail wing and support feet provided in this application. Figure 5 This is a schematic diagram of the structure of the ear clip provided in this application.

[0077] like Figure 1 、 Figure 4 and Figure 5 As shown, the card edge connector 100 includes a base 10 and an ear clip 20, wherein the base 10 is mounted on the motherboard 300. The top surface of the base 10 is provided with a slot 11 for inserting the card 200. Specifically, the slot 11 is used to insert the first section 201a and the second section 201b of the card 200. The insertion and removal direction of the card 200 is taken as the Z-axis direction as an example. The base 10 is adapted to the motherboard 300 so that the base 10 can be tightly fixed to the motherboard 300.

[0078] One end of the base 10 is provided with a tail portion 30, and the top surface of the tail portion 30 is provided with a fixing groove 31, which is used for partially inserting the board 200. Specifically, the fixing groove 31 is used for inserting the third section 201c of the board 200.

[0079] The tail section 30 is provided with support legs 40, which are used to abut against the main board 300 and support the tail section 30. Specifically, the support legs 40 are located at the lower end of the tail section 30. The support legs 40 are adapted to the main board 300 so that the support legs 40 can be tightly fixed to the main board 300 to support the tail section 30. This can improve the mechanical strength of the tail section 30 and enhance its pressure resistance.

[0080] It is understood that the motherboard 300 may include a circuit board body and electronic components disposed on the circuit board body. The support legs 40 are compatible with the motherboard 300 in that the bottom surface of the support legs 40 is allowed to fit comfortably rest on the surface of the circuit board body, or the bottom surface of the support legs 40 fits comfortably rests on the electronic components on the surface of the circuit board body.

[0081] In the example of this application, the bottom of the support leg 40 is provided with a groove structure, which accommodates the electronic components on the circuit board body and allows the support leg 40 to rest on the surface of the electronic components. In other embodiments, the support leg 40 can also rest directly on the surface of the circuit board body, as long as the support leg 40 can achieve the effect of supporting the motherboard 300 to support the tail wing portion 30. This application is not limited to this.

[0082] The ear button 20 is rotatably connected to the tail wing portion 30 . Specifically, the ear button 20 is partially accommodated in the fixing groove 31 , and a rotating shaft 21 is provided on both sides of the ear button 20 , and the ear button 20 is rotatably connected to the tail wing portion 30 via the rotating shaft 21 .

[0083] The ear button 20 can be switched between an open and closed state by rotating. When in the open state, the ear button 20 allows the card 200 to be inserted into the card slot 11 or removed from the card slot 11. When in the closed state, the ear button 200 limits the position of the card 200 inserted into the card slot 11.

[0084] Specifically, when the ear button 20 is in the open position, the ear button 20 does not block the fixing slot 31, allowing the third section 201c of the card 200 to be inserted into or removed from the card slot 11. When the ear button 20 is in the closed position, the ear button 20 can be engaged with the fixing opening 202 of the card 200, retaining the third section 201c of the card 200 in the fixing slot 31 to prevent the card 200 from being removed.

[0085] Thus, when inserting the card 200, if the ear button 20 is in the closed position, the user can slide the ear button 20 to rotate it to the open position, then insert the card 200 into the card slot 11, and then rotate the ear button 20 to the closed position. When inserting the card 200, if the ear button 20 is in the open position, the user can directly insert the card 200 into the card slot 11, and then rotate the ear button 20 to the closed position. When removing the card 200, the user can slide the ear button 20 to rotate it to the open position, and then remove the card 200 from the card slot 11.

[0086] It can be understood that when the user turns the ear button 20, the ear button 20 will apply pressure to the tail wing part 30. The present application supports the tail wing part 30 through the support feet 40, thereby improving the mechanical strength and pressure bearing capacity of the tail wing part 30. The tail wing part 30 is deformed or damaged during the force process, effectively extending the service life of the equipment.

[0087] In some embodiments, the base 10, support legs 40, and tail section 30 are integrally formed, with the lower portion of the tail section 30 extending downward to form the support legs 40. Specifically, the base 10 is integrally formed from a plastic material. This simplifies the processing of the base 10 and improves production efficiency. In other embodiments, the tail section 30 and support legs 40 may be separate structures, for example, with the support legs 40 secured to the bottom surface of the tail section 30 by bonding, welding, or plug-in connection, although this application is not limited thereto.

[0088] In some embodiments, the fixing slot 31 of the tail wing portion 30 extends through the side of the tail wing portion 30 away from the base 10. The space near the end of the fixing slot 31 on the base 10 can accommodate the third section 201c of the board 200, and the space away from the end of the fixing slot 31 on the base 10 can partially accommodate the ear button 20.

[0089] In some embodiments, the outer side of the tail wing portion 30 is provided with a snap-fitting groove 32 for engaging with the ear clip 20. For example, the snap-fitting groove 32 is provided on both sides of the tail wing portion 30. The snap-fitting groove 32 extends along the height of the tail wing portion 30, and one end of the snap-fitting groove 32 penetrates the top surface of the tail wing portion 30 to form an opening that gradually expands upward. The height direction of the tail wing portion 30 is exemplified by the Z-axis in the figure.

[0090] Figure 6 This is a cross-sectional schematic diagram of the base and tail wing provided in this application.

[0091] like Figure 2 、 Figure 3 and Figure 6As shown, in some embodiments, a rib 50 is disposed on the inner side of the tail wing portion 30. The rib 50 is disposed on the wall of the fixing slot 31 and is used to position the rotation angle of the ear clip 20. For example, the ribs 50 are disposed on both sides of the fixing slot 31. The ribs 50 are formed by inwardly protruding from the wall of the fixing slot 31 and extend along the height of the tail wing portion 30. A relief surface 51 is disposed at the upper end of the rib 50, which slopes downward toward the center of the fixing slot 31.

[0092] The rib 50 has a first positioning surface 52 and a second positioning surface 53, both of which are located in the rotation path of the ear stud 20. The first positioning surface 52 is used to position the ear stud 20 at the rotation angle when in the open state, and the second positioning surface 53 is used to position the ear stud 20 at the rotation angle when in the closed state.

[0093] Illustratively, a first positioning surface 52 is formed on a surface of the rib 50 facing away from the base 10. The first positioning surface 52 is parallel to the height direction of the tail wing portion 30. A second positioning surface 53 is located below the first positioning surface 52. The second positioning surface 53 is inclined downward toward the base 10, and an angle is formed between the first positioning surface 52 and the second positioning surface 53.

[0094] like Figure 5 and Figure 6 As shown, in some embodiments, a rotation hole 331 is provided on the inner side of the tail wing portion 30, and the rotation hole 331 is provided on the slot wall of the fixing slot 31. The rotating shaft 21 is provided in the rotation hole 331 to enable the ear buckle 20 to be rotatably connected to the tail wing portion 30.

[0095] In some embodiments, the walls of the fixing slot 31 are provided with mounting slots 33. The mounting slots 33 communicate with the top surface of the tail wing portion 30 to form a mounting opening. Stoppers 332 are provided within the mounting slots 33, and a rotation hole 331 is formed between the stoppers 332 and the bottom of the mounting slots 33. For example, mounting slots 33 are provided on both sides of the fixing slot 31. The bottom of the mounting slots 33 is curved, and the bottom surface of the stoppers 332 is also curved. The bottom of the mounting slots 33 and the bottom surface of the stoppers 332 enclose the rotation hole 331. To assemble the ear clip 20, the rotating shaft 21 of the ear clip 20 is first inserted into the mounting opening. Then, the ear clip 20 is pressed downward, causing the rotating shaft 21 to push past the stoppers 332 through an interference fit and enter the rotation hole 331. This makes assembly of the ear clip 20 simple and quick, improving production efficiency.

[0096] In some embodiments, the thickness of the stopper 332 gradually decreases toward the mounting opening, forming an inclined surface 333. For example, the inclined surface 333 slopes upward away from the center of the fixing slot 31, and the thickness of the stopper 332 is less than the depth of the mounting slot 33. As such, when the rotating shaft 21 is pressed into the rotation hole 331, the inclined surface 333 increases the force applied between the rotating shaft 21 and the tail wing portion 30, making it easier for the rotating shaft 21 to enter the rotation hole 331 through an interference fit, thereby improving assembly efficiency.

[0097] like Figure 3 and Figure 4 As shown, in some embodiments, a first abutment surface 34 is provided at the end of the tail wing portion 30 away from the base 10. The first abutment surface 34 is located in the rotation path of the ear clip 20 and is used to position the ear clip 20 at the rotation angle when in the open state. Exemplarily, the lower portion of the tail wing portion 30 extends away from the base 10 to form a boss 36. The top surface of the boss 36 is lower than the top surface of the tail wing portion 30, and the top surface of the boss 36 forms the first abutment surface 34. The first abutment surface 34 is inclined downward in the direction away from the base 10.

[0098] like Figure 2 and Figure 4 As shown, in some embodiments, the tail wing portion 30 is further provided with a second abutment surface 35. The second abutment surface 35 is located in the rotation path of the ear clip 20 and is used to position the ear clip 20 at the rotation angle when in the closed state. For example, the top surface of the tail wing portion 30 at the end away from the base 10 forms the second abutment surface 35, and the second abutment surface 35 is parallel to the longitudinal direction of the base 10. The longitudinal direction of the base 10 is exemplified by the X-axis in the figure.

[0099] Figure 7 This is a structural schematic diagram of the ear clip provided in this application from another perspective.

[0100] like Figure 4 、 Figure 5 and Figure 7 As shown, in some embodiments, the ear clip 20 has a rotating portion 60, a force-bearing portion 70 and a limiting portion 80. The force-bearing portion 70 is arranged at the upper end of the rotating portion 60, the limiting portion 80 is located on the side of the rotating portion 60, and there is a spacing space between the limiting portion 80 and the rotating portion 60. Exemplarily, the number of limiting portions 80 is 2, the rotating portion 60 is located between the two limiting portions 80, the rotating portion 60 and the two limiting portions 80 are all fixed to the lower end of the force-bearing portion 70, and the rotating portion 60, the force-bearing portion 70 and the limiting portion 80 are integrally formed and fixed. A slot 81 is formed between the force-bearing portion 70, the limiting portion 80 and the rotating portion 60, and the slot 81 is used for inserting the end of the tail wing portion 30 away from the base 10.

[0101] It will be appreciated that in this embodiment, the rotating portion 60, the force-bearing portion 70, and the limiting portion 80 rotate synchronously. When the rotating portion 60 or the limiting portion 80 is in the open state, the ear clip 20 is in the open state; when the rotating portion 60 or the limiting portion 80 is in the closed state, the ear clip 20 is in the closed state.

[0102] In some embodiments, a rotating shaft 21 is provided on both sides of the rotating portion 60, and the width of the rotating portion 60 is adapted to the width of the fixing groove 31 so that the rotating portion 60 can be partially accommodated in the end of the fixing groove 31 away from the base 10, and the rotating portion 60 is rotatably connected to the tail wing portion 30 through the rotating shaft 21.

[0103] In some embodiments, the rotating shaft 21 is provided with a wedge-shaped surface 211 that matches the inclined surface 333. That is, the inclination direction of the wedge-shaped surface 211 corresponds to the inclination direction of the inclined surface 333. When the rotating shaft 21 is pressed into the rotating hole 331, the cooperation between the wedge-shaped surface 211 and the inclined surface 333 can make it easier to spread the two sides of the tail wing portion 30, making it easier for the rotating shaft 21 to enter the rotating hole 331 through an interference fit, thereby improving assembly efficiency.

[0104] In some embodiments, the rotating portion 60 is provided with a receiving groove 61 that extends through the top surface of the rotating portion 60 and is used to receive the board 200 located in the fixed groove 31. A linkage block 62 is formed on the lower portion of the rotating portion 60, extending toward the base 10. The top surface of the linkage block 62 is parallel to the bottom surface of the receiving groove 61. The force-bearing portion 70 is provided with a connecting groove 71 that communicates with the receiving groove 61. The connecting groove 71 extends through the top surface of the force-bearing portion 70 and is provided with a limit block 72.

[0105] like Figure 1 、 Figure 4 、 Figure 5 and Figure 7 As shown, when the ear clip 20 is in the open position and the third section 201c of the board 200 is inserted into the fixing slot 31, the third section 201c of the board 200 can pass through the connecting slot 71 and the receiving slot 61 and abut against the linkage block 62, thereby driving the ear clip 20 to rotate a certain angle from the open position to the closed position. The user can then move the ear clip 20 to fully rotate it to the closed position. Furthermore, when the third section 201c of the board 200 is fully inserted into the fixing slot 31, the ear clip 20 is in the closed position, and the limiting block 72 is inserted into the fixing slot 202 of the board 200, completing the position limit of the board 200.

[0106] In some embodiments, the rotating portion 60 is provided with a mating surface 63 , wherein the mating surface 63 is formed on a side of the rotating portion 60 facing the rib 50 and is provided corresponding to the first positioning surface 52 . The first positioning surface 52 is located in the rotation path of the rotating portion 60 .

[0107] Specifically, the first positioning surface 52 is located in the area that the mating surface 63 passes through when the rotating portion 60 rotates from the closed state to the open state. When the ear stud 20 rotates from the closed state to the open state, the first positioning surface 52 abuts against the mating surface 63 to limit further rotation of the ear stud 20, thereby positioning the ear stud 20 at the rotation angle required for the open state.

[0108] It can be understood that the first positioning surface 52 can limit the rotation angle travel of the rotating part 60 from the closed state to the open state, preventing the ear button 20 from rotating excessively when rotating to the open state, thereby reducing the risk of the ear button 20 being damaged or detached from the tail wing part 30 during the turning process.

[0109] In some embodiments, the second positioning surface 53 is located in the area where the mating surface 63 passes when the rotating portion 60 rotates from the open state to the closed state. When the ear stud 20 rotates from the open state to the closed state, the second positioning surface 53 abuts against the mating surface 63 to limit further rotation of the ear stud 20, thereby positioning the ear stud 20 at the rotation angle required for the closed state.

[0110] It can be understood that the second positioning surface 53 can limit the rotation angle range of the rotating part 60 from the open state to the closed state, preventing the ear button 20 from excessively rotating when rotating to the closed state, and further reducing the risk of the ear button 20 being damaged or detached from the tail wing part 30 during the turning process.

[0111] In some embodiments, the stopper 80 is provided with a locking protrusion 82 protruding toward the slot 81. The locking protrusion 82 is provided corresponding to the locking groove 32. When the ear clip 20 rotates, the locking protrusion 82 can enter or exit the locking groove 32 from the opening of the locking groove 32.

[0112] Specifically, when the ear stud 20 rotates from the open position to the closed position, one end of the tail wing portion 30 enters the slot 81, and the engaging protrusion 82 can enter the engaging groove 32 from the opening of the engaging groove 32 and engage with the engaging groove 32, thereby positioning the ear stud 20 at the rotation angle for the closed position. When the ear stud 20 rotates from the closed position to the open position, the engaging protrusion 82 can disengage the engaging groove 32 from the opening of the engaging groove 32.

[0113] In some embodiments, the limiting portion 80 is provided with a first contact surface 83 , wherein the first contact surface 83 is formed on the bottom surface of the limiting portion 80 and is provided corresponding to the first abutting surface 34 . The first abutting surface 34 is located in the rotation path of the limiting portion 80 .

[0114] Specifically, the first stop surface 34 is located in the area where the first contact surface 83 passes when the stopper 80 rotates from the closed position to the open position. When the ear stud 20 rotates from the closed position to the open position, the first stop surface 34 abuts against the first contact surface 83 to limit further rotation of the ear stud 20, thereby positioning the ear stud 20 at the rotation angle required for the open position.

[0115] Figure 8 Schematic diagram of the force exerted by the first positioning surface and the first stopping surface against the ear buckle provided in this application.

[0116] like Figure 4 、 Figure 7 and Figure 8 As shown, in the example of the present application, when the ear stud 20 rotates from the closed state to the open state, the first positioning surface 52 abuts against the mating surface 63 along the first direction, and the first stop surface 34 abuts against the first contact surface 83 along the second direction to limit further rotation of the ear stud 20. The first direction and the second direction are different. The F1 direction in the first direction diagram is used as an example, and the F2 direction in the second direction diagram is used as an example. Exemplarily, when the ear stud 20 rotates from the closed state to the open state, the first positioning surface 52 abuts against the mating surface 63 from top to bottom, and the first stop surface 34 abuts against the first contact surface 83 from bottom to top.

[0117] It can be understood that when the ear button 20 is in the open state, the first positioning surface 52 and the mating surface 63 cooperate to position it in the first direction, and the first stop surface 34 and the first contact surface 83 cooperate to position it in the second direction, so that the ear button 20 can be positioned from different positions and different directions, and the forces in different directions can offset each other, reducing the impact of the force on the rotating shaft 21 and increasing the service life of the rotating shaft 21.

[0118] like Figure 4 、 Figure 5 and Figure 7 As shown, in some embodiments, the force-bearing portion 70 is provided with a second contact surface 73, wherein the second contact surface 73 is formed on the bottom surface of the force-bearing portion 70 and is provided corresponding to the second stop surface 35. The second stop surface 35 is located in the rotation path of the force-bearing portion 70.

[0119] Specifically, the second abutment surface 35 is located in the area where the second contact surface 73 passes when the force-bearing portion 70 rotates from the open position to the closed position. When the ear clip 20 rotates from the open position to the closed position, the second abutment surface 35 abuts against the second contact surface 73 to limit further rotation of the ear clip 20, thereby positioning the ear clip 20 at the rotation angle required for the closed position.

[0120] It can be understood that when the ear button 20 is in the closed state, the second positioning surface 53 and the mating surface 63 cooperate to perform positioning, and the second stop surface 35 and the second contact surface 73 cooperate to perform positioning, so that the ear button 20 can be positioned from different positions to improve positioning stability.

[0121] In some embodiments, a handle 74 is provided on the top of the force-bearing portion 70 , and the handle 74 is used for the user to apply force and turn it, so that the user can easily rotate the ear button 20 to a closed state or an open state.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to 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 may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A card edge connector, characterized in that: include: The base has a card slot on the top surface and a tail wing at one end. The base is used to be installed on the mainboard, and the card slot is used for inserting the mainboard. an ear button, rotatably connected to the tail wing portion, the ear button having an open state and a closed state that can be switched by rotation, and when the ear button is in the closed state, the ear button limits the board card inserted in the card slot; Wherein, the tail wing portion is provided with supporting feet, and the supporting feet are used to abut against the main board and support the tail wing portion.

2. The card edge connector according to claim 1, wherein: The lower portion of the tail wing portion extends downward to form the supporting foot, and the base, the supporting foot and the tail wing portion are integrally formed.

3. The card edge connector according to claim 1, wherein: The tail portion is provided with a fixing slot, and the fixing slot is used for inserting the board portion; The ear clip has a rotating part, which is arranged in the fixed groove and is rotatably connected to the tail wing part through a rotating shaft; the rotating part is provided with a receiving groove, which is used for inserting the board card located in the fixed groove.

4. The card edge connector according to claim 3, wherein: The groove wall of the fixing groove is provided with a convex rib, and the convex rib has a first positioning surface, and the first positioning surface is located in the rotation path of the rotating part; The rotating portion is provided with a first mating surface; when the ear button is rotated from the closed state to the open state, the first positioning surface abuts against the first mating surface to limit the ear button from continuing to rotate.

5. The card edge connector according to claim 4, wherein: The ear clip further comprises a limiting portion, which is arranged on a side surface of the rotating portion and has a first contact surface; One end of the tail wing portion away from the base is located between the limiting portion and the rotating portion and is provided with a first abutting surface, and the first abutting surface is located in the rotation path of the limiting portion; When the ear button rotates from the closed state to the open state, the first positioning surface abuts against the first mating surface along a first direction, and the first stopping surface abuts against the first contact surface along a second direction to limit the ear button from continuing to rotate, and the first direction is different from the second direction.

6. The card edge connector according to claim 4, wherein: The convex rib has a second positioning surface, the second positioning surface is located in the rotation path of the rotating part, and an angle is formed between the first positioning surface and the second positioning surface; When the ear button rotates from the open state to the closed state, the second positioning surface abuts against the matching surface to limit the ear button from further rotation.

7. The card edge connector according to claim 5, wherein: The ear clip further comprises a force-bearing portion, the force-bearing portion being arranged at the upper end of the rotating portion, a slot being formed between the force-bearing portion, the limiting portion and the rotating portion, the slot being used for inserting one end of the tail wing portion, and a second contact surface being formed on the bottom surface of the force-bearing portion; A second stop surface is formed on the top surface of the tail wing portion, and the second stop surface is located in the rotation path of the force-bearing portion; when the ear buckle rotates from the open state to the closed state, the second stop surface abuts against the second contact surface to limit the ear buckle from continuing to rotate.

8. The card edge connector according to claim 7, wherein: The limiting portion is provided with a snap-fitting protrusion protruding in a direction close to the slot, and the side of the tail wing portion is provided with a snap-fitting groove; when the ear buckle is rotated from the open state to the closed state, the snap-fitting protrusion is snapped into the snap-fitting groove.

9. The card edge connector according to claim 3, wherein: The groove wall of the fixing groove is provided with an installation groove, and the installation groove is connected to the top surface of the tail wing part to form an installation opening. A stopper is provided in the installation groove, and a rotation hole is formed between the stopper and the bottom of the installation groove, and the rotating shaft is provided in the rotation hole.

10. The card edge connector according to claim 9, wherein: The thickness of the stopper gradually decreases toward the direction approaching the installation opening to form an inclined surface, and the rotating shaft is provided with a wedge-shaped surface adapted to the inclined surface.

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