Card edge connector

Abstract

The invention relates to the technical field of electric connectors, in particular to a card edge connector which comprises a base and a limiting piece, the base is provided with a slot, and the slot is used for being connected with a board card; the limiting piece is movably connected with the base in the first direction, the limiting piece is provided with a limiting protrusion, and the limiting piece is provided with a locking position and an unlocking position; when the limiting piece is located at the locking position, at least partial projections of the limiting bulge and the slot in the second direction are overlapped so as to limit the board card from being separated from the slot; when the limiting piece is located at the unlocking position, the limiting protrusion is far away from the slot and used for being separated from the board card. Wherein the second direction is the insertion direction of the slot, and the first direction is perpendicular to the second direction.

Description

Technical Field

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

[0002] The card edge connector is generally provided with a base and a latch. The base is used for inserting a board and the latch is connected to the base and is located on one side of the length direction of the base, so that the overall length of the card edge connector is longer, and the latch is rotatably arranged relative to the base so that the latch can be covered on the board to lock the board or separated from the board to unlock the board. The rotation of the latch is likely to collide with parts near the board, thereby damaging parts near the board, resulting in poor reliability of the use of the card edge connector. Summary of the invention

[0003] In view of this, the present application provides a card edge connector, which can improve the reliability of the use of the card edge connector.

[0004] An embodiment of the present application provides a card edge connector, including a base and a limit plate, the base having a slot, the slot being used to connect a board; the limit plate is movably connected to the base along a first direction, the limit plate having a limit protrusion, and the limit plate having a locking position and an unlocking position; when the limit plate is in the locking position, the limit protrusion and at least part of the projection of the slot along the second direction are overlapped to limit the board from being out of the slot; when the limit plate is in the unlocking position, the limit protrusion is away from the slot to be separated from the board; wherein the second direction is the insertion direction of the slot, and the first direction is perpendicular to the second direction.

[0005] The board is limited by the limiting protrusion. In the process of moving the limiting plate from the locked position to the unlocked position, the limiting plate can disengage the limiting protrusion from the board by moving a short distance. Compared with the rotation method of the buckle in the prior art, the limiting plate of the present application has a smaller range of motion and is not easy to collide with parts near the board during the movement of the limiting plate, thereby improving the reliability of the card edge connector.

[0006] In at least one embodiment, the limiting piece includes a limiting piece body and a limiting connecting section, the limiting piece body is provided with a limiting protrusion; the limiting connecting section is connected to the limiting piece body and is arranged at an angle to the limiting piece body, and part of the limiting connecting section is located in the slot.

[0007] By setting the limiting connection section of the limiting plate in the slot, the board and the limiting connection section are linked during the process of inserting the board into the slot, so that the limiting plate and the limiting protrusion are automatically moved to the locking position. In this process, there is no need to manually operate the limiting plate to move, which simplifies the use steps of the card edge connector and reduces the difficulty of using the card edge connector.

[0008] In at least one embodiment, the limiting connecting section has a first contact surface located in the slot, the first contact surface is used to contact the board, and the first contact surface is used to be set at an angle with the first preset plane.

[0009] By setting the first contact surface as an inclined surface inclined to the first preset plane, the board can be directly inserted into the slot and abut against the first contact surface. During this process, the board applies pressure to the first contact surface and generates a component force along the first direction on the first contact surface, thereby causing the limiting connecting section and the limiting piece body to move along the first direction.

[0010] In at least one embodiment, the limiting plate is made of an elastic material, and the limiting plate is deformably arranged along a third direction; wherein the third direction is perpendicular to the second direction.

[0011] When the limiting protrusion moves from the locking position to the separation position, the limiting sheet can be deformed along its thickness direction in a direction away from the board, so that the limiting protrusion can be separated from the limiting portion of the board smoothly.

[0012] In at least one embodiment, the base is provided with an unlocking protrusion, which is arranged on the outer surface of the base close to the limiting plate; the limiting plate includes a limiting plate body and a first bending section, the first bending section is connected to the limiting plate body and is arranged at an angle, and the first bending section is arranged against the unlocking protrusion.

[0013] Through the unlocking protrusion and the first bent section of the limiting plate, during the movement of the limiting plate, the limiting plate can be gradually deformed away from the base through the cooperation between the first bent section and the unlocking protrusion, so that the limiting protrusion and the board limiting part are smoothly separated. In this process, there is no need to manually adjust the deformation of the limiting plate, which makes the operation of the card edge connector simple.

[0014] In at least one embodiment, the limiting piece has a second bending section, which is connected to the limiting piece body and is arranged at an angle, and the bending direction of the second bending section is opposite to the protruding direction of the limiting protrusion.

[0015] During the process of inserting the board into the slot, the second bending section is provided so that the limiting piece has an opening with a larger width, so as to guide the board and enable the board to be smoothly inserted into the slot.

[0016] In at least one embodiment, an end of the limiting protrusion away from the limiting plate is located at 2 / 3 of the width of the slot.

[0017] By controlling the end of the limiting protrusion away from the limiting plate to 2 / 3 of the width of the slot, a better limiting cooperation effect between the limiting protrusion and the limiting part of the board and card can be achieved. At the same time, the limiting protrusion and the limiting part of the board and card can be separated by allowing the limiting plate to produce a smaller deformation along its thickness direction, thereby improving the problem of the limiting plate being easily deformed and failing along its thickness direction.

[0018] In at least one embodiment, the card edge connector further includes an elastic connector, one end of which is connected to the base, and the other end of which is connected to the limiting piece.

[0019] When the board is inserted into the slot, the board abuts against the limiting connection section located in the slot, and the limiting piece moves along the distribution direction from the first slot portion to the second slot portion, so that the elastic connector is in a stretched state. When the board is pulled out of the slot, the board is separated from the limiting connection section, so that the limiting piece is pulled as a whole along the distribution direction from the second slot portion to the first slot portion by the tensile force of the elastic connector 30, so that the limiting protrusion is separated from the limiting portion of the board. In this process, only the board needs to be plugged in and out, and there is no need to manually control the movement of the limiting piece, thereby simplifying the operating steps of the card edge connector and making the card edge connector easy to use.

[0020] In at least one embodiment, the slot has a slot opening; a first stop protrusion is provided on an outer surface of a side of the base close to the limiting plate, and the first stop protrusion is located on a side of the limiting plate close to the slot opening.

[0021] The first stop protrusion is used to limit the movement range of the limiting plate in the second direction to limit the deformation of the limiting plate in the second direction, thereby reducing the deformation of the limiting plate and improving the problem of deformation failure of the limiting plate, thereby improving the reliability of the limiting plate.

[0022] In at least one embodiment, the slot has a slot opening; a second stop protrusion is provided on an outer surface of a side of the base close to the limiting plate, and the second stop protrusion is located on a side of the limiting plate away from the slot opening.

[0023] The second stop protrusion is used to limit the movement range of the limiting plate in the second direction to limit the deformation of the limiting plate in the second direction, thereby reducing the deformation of the limiting plate and improving the problem of deformation failure of the limiting plate, thereby improving the reliability of the limiting plate.

[0024] In at least one embodiment, the limiting protrusion has a first guiding slope; along the direction in which the limiting protrusion approaches the slot and moves along the first direction, the distance between the first guiding slope and a side surface in the thickness direction of the limiting piece gradually decreases.

[0025] When the board card is inserted into the slot, the first guiding inclined surface avoids the board card so that the board card can enter the slot smoothly.

[0026] In at least one embodiment, the limiting protrusion has a second guiding inclined surface; along the insertion direction of the slot, the distance between the second guiding inclined surface and a side surface in the thickness direction of the limiting piece gradually increases.

[0027] When the board card is inserted into the slot, the second guiding inclined surface avoids the board card so that the board card can enter the slot smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the first perspective of the cooperation between the card edge connector and the board in one embodiment of the present application.

[0029] Figure 2 It is a structural schematic diagram of the second viewing angle of the cooperation between the card edge connector and the board in one embodiment of the present application.

[0030] Figure 3 It is a structural schematic diagram of a card edge connector in an embodiment of the present application from a first viewing angle.

[0031] Figure 4 It is a structural schematic diagram of a card edge connector in an embodiment of the present application in which a limiting protrusion is in an unlocked position.

[0032] Figure 5 It is a structural schematic diagram of a card edge connector in an embodiment of the present application in which a limiting protrusion is in a locked position.

[0033] Figure 6 It is a structural schematic diagram of a card edge connector in an embodiment of the present application from a second viewing angle.

[0034] Figure 7 It is a schematic diagram of the structure inside the slot of the card edge connector in one embodiment of the present application.

[0035] Figure 8 It is a structural schematic diagram of a card edge connector in an embodiment of the present application having a mating protrusion on its base.

[0036] Fig. 9 It is a top view of a limiting protrusion on a limiting piece of a card edge connector in an embodiment of the present application protruding out of a limiting groove section.

[0037] Fig.10 It is an enlarged front view of a limiting protrusion on a limiting piece of a card edge connector in one embodiment of the present application.

[0038] Fig.11 It is an enlarged top view of a limiting protrusion on a limiting piece of a card edge connector in one embodiment of the present application.

[0039] Main component symbols

[0040] 100, board; 101, board limiter; 102, board body; 103, first plug-in board section; 104, second plug-in board section; 10, base; 110, slot; 1101, slot opening; 111, first slot section; 112, second slot section; 11, unlocking protrusion; 12, first stop protrusion; 13, second stop protrusion; 120, limit slot section; 1201, limit guide opening; 130, strip hole; 14, matching protrusion; 15, connection Protrusion; 20, limiting plate; 201, mounting position; 21, limiting protrusion; 211, first guiding slope; 212, second guiding slope; 22, limiting plate body; 23, limiting connecting section; 230, first contact surface; 231, first limiting section; 232, second limiting section; 25, first bending section; 26, second bending section; 220, first main section; 221, second main section; 222, bent main section; 27, connecting section; 30, elastic connecting piece. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0042] In the related art, the card edge connector is used for board card insertion and provides a reliable electrical connection for the board card to realize data transmission and power supply between the board card and external devices. The board card is various expansion cards, such as graphics cards, wireless network cards, and memory sticks.

[0043] In some embodiments of the related art, the expansion card is connected to the mainboard via a card edge connector. The card edge connector is generally provided with a base and a buckle. The base is used for inserting the card. The buckle is connected to the base and is located on one side of the length direction of the base. The buckle is rotatably arranged relative to the base so that the buckle is buckled on the card to lock the card or separated from the card to unlock the card, wherein the rotation axis of the buckle extends along the thickness direction of the card. The above-mentioned structure has the following disadvantages:

[0044] (1) The latch is located on one side of the base in the length direction. The total length of the card edge connector is the sum of the latch and the base. It can be seen that the overall length of the card edge connector in the related art is relatively long, resulting in a relatively large overall volume of the card edge connector, which makes it easy for the card edge connector to collide with components near the motherboard when the card edge connector is connected to the motherboard.

[0045] (2) When unlocking the card edge connector, the handle needs to be pressed downward to rotate the handle away from the card to achieve unlocking. However, the motherboard is generally located below the card edge connector. The downward rotation of the handle is likely to collide with the heat dissipation structure, thereby damaging the motherboard.

[0046] As can be seen from the above, the card edge connector in the related art has the disadvantage of poor reliability in use.

[0047] An embodiment of the present application provides a card edge connector, including a base and a limiting plate, the base having a slot for connecting a board or card, the limiting plate being movably connected to the base along a first direction, the limiting plate being provided with a limiting protrusion, the limiting plate having a locking position and an unlocking position, when the limiting plate is located at the locking position, the limiting protrusion and the projection of the slot along a second direction are overlapped to limit the board or card from being separated from the slot; when the limiting plate is located at the unlocking position, the limiting protrusion is away from the slot to be separated from the board or card.

[0048] The present application limits the board and card by means of a limiting protrusion. In the process of the limiting plate moving from the locked position to the unlocked position, the limiting plate can achieve the separation of the limiting protrusion from the board and card by moving a short distance. Compared with the rotation method of the buckle in the prior art, the limiting plate of the present application has a smaller range of motion, and is not easy to collide with parts near the board and card during the movement of the limiting plate, thereby improving the reliability of the card edge connector.

[0049] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features in the following embodiments and examples can be combined with each other.

[0050] See also Figure 1 and Figure 2 An embodiment of the present application provides a card edge connector, which is used to connect a board 100. Please refer to Figure 3 The card edge connector includes a base 10 having a slot 110 for inserting a board 100 .

[0051] See also Figure 2 and Figure 3 In some embodiments, the card edge connector includes a limit plate 20, which is movably connected to the base 10 along a first direction, and is provided with a limit protrusion 21. The limit protrusion 21 has a locking position and an unlocking position; when the limit plate 20 is located at the locking position, the limit protrusion 21 and the projection of the slot 110 along the second direction are overlapped to limit the board 100 from being separated from the slot 110; when the limit plate 20 is located at the unlocking position, the limit protrusion 21 is away from the slot 110, and is used to be separated from the board 100.

[0052] The board 100 is limited by the limiting protrusion 21. When the limiting piece 20 moves from the locked position to the unlocked position, the limiting protrusion 21 can be separated from the board by moving a short distance. Compared with the rotation method of the buckle in the prior art, the limiting piece 20 of the present application has a smaller range of motion. It is not easy to collide with parts near the board 100 during the movement of the limiting piece 20, thereby improving the reliability of the card edge connector.

[0053] The second direction is the insertion direction of the slot 110 , and the first direction is perpendicular to the second direction.

[0054] Further, the first direction is the length direction of the base 10 .

[0055] See also Figure 1 and Figure 2 In some embodiments, the board 100 has a board limiting portion 101 .

[0056] See also Figure 1 and Figure 2 The board card 100 includes a board card body 102, a board card limiting portion 101 extending along the length direction of the base 10, the board card body 102 is connected to the board card limiting portion 101 and is located on a side of the board card limiting portion 101 away from the base, and the board card body 102 and the board card limiting portion 101 are spaced apart.

[0057] Please also read Figure 4 and Figure 5 When the board 100 is inserted into the slot 110, the limiting piece 20 moves to a position where the limiting protrusion 21 overlaps with the projection of the slot 110 along the second direction, and the limiting protrusion 21 is located between the board body 102 and the board limiting portion 101, so that the board limiting portion 101 and the limiting protrusion 21 are limitedly matched to limit the board 100 from being pulled out of the slot, so that the limiting piece 20 is in a locked position; when the board 100 is pulled out of the slot 110, the limiting piece 20 moves to a position where the limiting protrusion 21 is spaced from the board limiting portion 101 to avoid the board limiting portion 101, so that the limiting piece 20 is in an unlocked position.

[0058] During the process of the limit plate 20 moving from the locked position to the unlocked position, the limit plate 20 can achieve the disengagement of the limit protrusion 21 from the board 100 by moving a short distance. Compared with the rotation method of the buckle in the prior art, the limit plate 20 of the present application has a smaller range of motion, and it is not easy to collide with parts near the board 100 during the movement of the limit plate 20, thereby improving the reliability of the card edge connector.

[0059] It is understandable that in the present application, a smaller limiting protrusion 21 can be provided to limit the board limiting portion 101, so that the limiting piece 20 can separate the limiting protrusion 21 from the board 100 by moving a shorter distance.

[0060] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the board 100 includes a first plug-in board section 103 and a second plug-in board section 104, both of which are connected to the board body 102, and the slot 110 includes a first slot portion 111 and a second slot portion 112, the first plug-in board section 103 is plugged into the first slot portion 111, and the second plug-in board section 104 is plugged into the second slot portion 112.

[0061] See also Figure 3 and Figure 6 In some embodiments, the limiting piece 20 includes a limiting piece body 22 and a limiting connecting section 23, and the limiting piece body 22 is provided with a limiting protrusion 21; the limiting connecting section 23 is connected to the limiting piece body 22 and bent to the limiting piece body 22, and a portion of the limiting connecting section 23 is located in the slot 110, so that when the board is inserted into the slot 110, the limiting piece 20 contacts the board 100 and moves the limiting piece 20 to the locked position.

[0062] By setting a portion of the limiting connection section 23 of the limiting piece 20 in the slot 110, when the board 100 is inserted into the slot 110, the board 100 and the limiting connection section 23 are linked to each other, so that the limiting piece 20 and the limiting protrusion 21 are automatically moved to the locking position. In this process, there is no need to manually operate the limiting piece 20 to move, which simplifies the use steps of the card edge connector and reduces the difficulty of using the card edge connector.

[0063] In some embodiments, one side surface of the limiting piece body 22 in the thickness direction is in contact with the outer surface of the base 10 , so that the structure between the limiting piece 20 and the base 10 is compact and the overall volume of the card edge connector is reduced.

[0064] See also Figure 6 and Figure 7 In some embodiments, the limiting connecting section 23 includes a first limiting section 231 and a second limiting section 232. The first limiting section 231 is connected to the limiting piece body 22 and is arranged perpendicular to the limiting piece body 22; the second limiting section 232 is connected to the first limiting section 231 and is arranged perpendicular to the limiting piece body 22. The second limiting section 232 is parallel to the limiting piece body 22. The second limiting section 232 passes through the base 10, and at least a portion of the second limiting section 232 is located in the slot 110.

[0065] During the process of inserting the board 100 into the slot 110, the board 100 contacts the second limiting segment 232 and drives the second limiting segment 232 to move along the first direction. Since the limiting piece body 22 is arranged in parallel with the second limiting segment 232 and the limiting piece body 22 is connected to the first limiting segment 231 and the second limiting segment 232, the moving direction of the limiting piece body 22 is the same as the moving direction of the second limiting segment 232, so that the limiting protrusion 21 on the limiting piece body 22 moves toward the direction close to the board limiting portion 101 until the limiting protrusion 21 is in the locked position.

[0066] In the embodiment of the present application, at least a portion of the second limiting section 232 is disposed in the second slot portion 112 .

[0067] See also Figure 6 and Figure 7 In some embodiments, the base 10 has a bar hole 130, which is connected to the slot 110, and the second limiting section 232 is passed through the bar hole 130. The length of the bar hole 130 is greater than the width of the second limiting section 232, so that the second limiting section 232 can be movably arranged along the length direction of the bar hole.

[0068] See also Figure 6 and Figure 7 In some embodiments, the limiting connecting section 23 has a first contact surface 230 located in the slot 110, and the first contact surface 230 is used to contact the board 100. The first contact surface 230 is used to be set at an angle with the first preset plane, so that when the board 100 is inserted into the slot 110 and contacts the first contact surface 230, the limiting protrusion 21 on the limiting plate 20 moves to the locking position; wherein the first preset plane is perpendicular to the length direction of the base 10.

[0069] If the first contact surface 230 is a vertical plane, the board 100 needs to be tilted so that one corner of the board 100 is inserted into the slot 110 and abuts against the first contact surface 230, so as to push the first contact surface 230 to move along the first direction before the other side of the board 100 can be fully inserted into the slot 110. During this process, the board 100 is prone to deformation, affecting the reliability of plugging and unplugging the board 100. The present application sets the first contact surface 230 as an inclined surface tilted to the first preset plane, so that the board 100 can be directly inserted into the slot 110 and abut against the first contact surface 230. During this process, the board 100 applies pressure to the first contact surface 230 and generates a component force along the first direction on the first contact surface 230, thereby causing the limiting connection section 23 and the limiting piece body 22 to move along the first direction.

[0070] Specifically, the second limiting section 232 has the first contact surface 230 .

[0071] Specifically, the slot 110 has a slot opening 1101 , and the first contact surface 230 is inclined in a direction away from the limiting protrusion 21 and in a direction close to the slot opening 1101 of the slot 110 .

[0072] In some embodiments, the limiting piece 20 is made of an elastic material, and the limiting piece 20 is deformably arranged along the third direction. When the limiting protrusion 21 moves from the locking position to the separation position, the limiting piece 20 can be deformed along its thickness direction in a direction away from the board 100, so that the limiting protrusion 21 is smoothly separated from the board limiting portion 101. The third direction is perpendicular to the second direction.

[0073] In the embodiment of the present application, the third direction is the width direction of the slot 110 of the base 10 . It can be understood that the thickness direction of the limiting piece 20 extends along the width direction of the slot 110 of the base 10 .

[0074] In some embodiments, one end of the limiting protrusion 21 away from the limiting piece 20 is located at 2 / 3 of the width of the slot 110 .

[0075] If the height of the limiting protrusion 21 completely covers the width of the slot 110, when the limiting plate 20 is deformed along its thickness direction, the limiting plate 20 needs to produce a larger deformation to separate the limiting protrusion 21 from the board limiting portion 101, which may easily lead to the elastic deformation failure of the limiting plate 20; by controlling the end of the limiting protrusion 21 away from the limiting plate 20 at 2 / 3 of the width of the slot 110, while achieving a better limiting cooperation effect between the limiting protrusion 21 and the board limiting portion 101, the separation of the limiting protrusion 21 and the board limiting portion 101 can be achieved by allowing the limiting plate 20 to produce a smaller deformation along its thickness direction, thereby improving the problem of the limiting plate 20 being easily deformed and failing along its thickness direction.

[0076] The height of the limiting protrusion 21 extends along the third direction.

[0077] See also Figure 3 In some embodiments, the base 10 is provided with an unlocking protrusion 11, and the unlocking protrusion 11 is arranged on the outer surface of the base 10 close to the limiting piece 20; the limiting piece 20 includes a limiting piece body 22 and a first bending section 25, the first bending section 25 is connected to the limiting piece body 22 and is arranged at an angle, and the first bending section 25 is against the unlocking protrusion 11, so that when the first bending section 25 moves close to the unlocking protrusion 11, the first bending section 25 squeezes the unlocking protrusion 11, so that the limiting piece 20 gradually deforms away from the base 10, so that the limiting protrusion 21 moves from the locked position to the unlocked position.

[0078] By unlocking the protrusion 11 and the first bent section 25 of the limiting plate 20, during the movement of the limiting plate 20, the limiting plate 20 can be gradually deformed away from the base 10 through the cooperation between the first bent section 25 and the unlocking protrusion 11, so that the limiting protrusion 21 can be smoothly separated from the board limiting portion 101. In this process, there is no need to manually adjust the deformation of the limiting plate 20, so that the operation of the card edge connector is simple.

[0079] See also Figure 3 and Figure 8 In some embodiments, the base 10 is provided with a mating protrusion 14, and the mating protrusion 14 is spaced apart from the unlocking protrusion 11. The first bent section 25 of the limiting plate 20 is located between the mating protrusion 14 and the unlocking protrusion 11, so as to guide the movement of the first bent section 25 through the mating protrusion 14 and the unlocking protrusion 11, and limit the deformation degree of the first bent section 25 along its thickness direction through the mating protrusion 14, so as to improve the problem that the first bent section 25 is easily deformed and fails along its thickness direction.

[0080] See also Figure 3 In some embodiments, the limiting piece 20 has a second bending section 26, which is connected to the limiting piece body 22 and arranged at an angle, and the bending direction of the second bending section 26 is opposite to the protruding direction of the limiting protrusion 21. During the process of inserting the board 100 into the slot 110, the second bending section 26 is provided so that the limiting piece 20 has a wide opening, which guides the board 100, so that the board 100 can be smoothly inserted into the slot 110.

[0081] The distribution direction between the second bending section 26 and the limiting piece body 22 is perpendicular to the distribution direction between the first bending section 25 and the limiting piece body 22 ; the first bending section 25 is connected to one end of the limiting piece body 22 in the length direction.

[0082] See also Figure 3 and Figure 6 In some embodiments, the card edge connector further includes an elastic connector 30, one end of the elastic connector 30 is connected to the base 10, and the other end of the elastic connector 30 is connected to the limiting plate 20, so that when the board 100 is pulled out of the slot 110, the elastic force of the elastic connector 30 drives the limiting plate 20 to move from the locked position to the unlocked position.

[0083] By setting the elastic connecting member 30, when the board card 100 is inserted into the slot 110, the board card 100 abuts against the limiting connecting section 23 located in the slot 110, and the limiting piece 20 moves along the direction from the first slot portion 111 to the second slot portion 112, so that the elastic connecting member 30 is in a stretched state. When the board card 100 is pulled out of the slot 110, the board card 100 is separated from the limiting connecting section 23, so that the limiting piece 20 is pulled as a whole along the distribution direction from the second slot portion 112 to the first slot portion 111 by the tensile force of the elastic connecting member 30, so that the limiting protrusion 21 is separated from the board card limiting portion 101; in this process, only the insertion and removal of the board card 100 needs to be operated, and there is no need to manually control the movement of the limiting piece 20, thereby simplifying the operation steps of the card edge connector and making the card edge connector easy to use.

[0084] In some embodiments, the elastic connecting member 30 is a serpentine spring.

[0085] See also Figure 3 and Figure 6 In some embodiments, the base 10 has a connecting protrusion 15, the limiting plate 20 has a connecting section 27, the connecting section 27 is connected to the limiting plate body 22 and is bent in a direction away from the base 10, the connecting section 27 is located on the side of the connecting protrusion 15 away from the limiting protrusion 21, and the two ends of the elastic connecting member 30 are respectively connected to the connecting protrusion 15 and the connecting section 27; wherein, one end of the elastic connecting member 30 is sleeved on the connecting protrusion 15, and the other end of the elastic connecting member 30 is hung on the connecting section 27.

[0086] See also Figure 3 and Figure 6 In some embodiments, the slot 110 has a slot opening 1101, and a first stop protrusion 12 is provided on the outer surface of one side of the base 10 close to the limiting piece 20, and the first stop protrusion 12 is located on the side of the limiting piece 20 close to the slot opening 1101. The first stop protrusion 12 is used to limit the movement range of the limiting piece 20 along the second direction, so as to limit the deformation of the limiting piece 20 along the second direction, reduce the deformation of the limiting piece 20, improve the problem of deformation failure of the limiting piece 20, and thus improve the reliability of the limiting piece 20.

[0087] The board 100 passes through the slot opening 1101 and enters the interior of the slot 110 .

[0088] See also Figure 3 and Figure 6In some embodiments, a second stop protrusion 13 is provided on the outer surface of one side of the base 10 close to the limiting piece 20, and the second stop protrusion 13 is located on the side of the limiting piece 20 away from the slot opening 1101. The second stop protrusion 13 limits the movement range of the limiting piece 20 along the second direction, thereby limiting the deformation of the limiting piece 20 along the second direction, reducing the deformation of the limiting piece 20, improving the problem of deformation failure of the limiting piece 20, and thus improving the reliability of the limiting piece 20.

[0089] See also Figure 3 and Figure 6 In some embodiments, the limiting piece body 22 includes a first main body section 220 and a second main body section 221. The length of the first main body section 220 extends along the second direction. The length of the first main body section 220 is greater than the height of the base 10. The first main body section 220 has an installation position 201. The installation position 201 is located on one side of the slot opening 1101 of the slot 110 along the second direction. The first main body section 220 and the second main body section 221 are connected, and a portion of the second main body section 221 is located between the first stop protrusion 12 and the second stop protrusion 13.

[0090] See also Figure 3 and Figure 6 In some embodiments, the slot 110 includes a limiting slot section 120, the board limiting portion 101 is inserted into the limiting slot section 120, the first main body section 220 and the second main body section 221 are connected by a bent main body section 222, and along the distribution direction from the second main body section 221 to the first main body section 220, the bent main body section 222 is gradually arranged close to the base 10, so that the first main body section 220 is arranged close to the board limiting portion 101, so that the limiting protrusion 21 protrudes from one side of the thickness direction of the board limiting portion 101.

[0091] In the embodiment of the present application, the first slot portion 111 is located between the limiting slot section 120 and the second slot portion 112 .

[0092] See also Figure 3 , Figure 6 and Fig. 9 In some embodiments, the limiting groove segment 120 has a limiting guide opening 1201 and a limiting groove segment body. Along the insertion direction of the board 100 into the slot 110, the width of the limiting guide opening 1201 gradually decreases until the width of the limiting guide opening 1201 is the same as the width of the limiting groove segment body. The setting of the limiting guide opening 1201 facilitates the insertion of the board limiting portion 101 into the limiting groove segment 120.

[0093] See also Figure 3 , Figure 6 and Fig.10In some embodiments, the limiting protrusion 21 has a first guiding slope 211; along the direction in which the limiting protrusion 21 approaches the slot 110 and moves along the first direction, the distance between the first guiding slope 211 and the side surface of the limiting piece 20 in the thickness direction gradually decreases, so that when the board 100 is inserted into the slot 110, the board 100 is avoided by the first guiding slope 211, so that the board 100 can smoothly enter the slot 110.

[0094] See also Figure 3 , Figure 6 and Fig.10 In some embodiments, the limiting protrusion 21 has a second guiding slope 212; along the insertion direction of the board 100 into the slot 110, the distance between the second guiding slope 212 and the side surface of the limiting piece 20 in the thickness direction gradually increases, so that during the process of inserting the board 100 into the slot 110, the board 100 is avoided by the second guiding slope 212, so that the board 100 can smoothly enter the slot 110.

[0095] See also Fig.11 In some embodiments, the limiting protrusion 21 is a hollow structure, and the limiting protrusion 21 and the limiting sheet 20 are formed into an integral structure by cutting and stamping.

[0096] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. A card edge connector, characterized in that: include: A base having a slot for connecting a board; A limiting plate is movably connected to the base along a first direction, the limiting plate having a limiting protrusion, and the limiting plate has a locking position and an unlocking position; when the limiting plate is located at the locking position, the limiting protrusion and at least a partial projection of the slot along the second direction are overlapped to limit the board from being separated from the slot; when the limiting plate is located at the unlocking position, the limiting protrusion is away from the slot to be separated from the board; wherein the second direction is the insertion direction of the slot, and the first direction is perpendicular to the second direction.

2. The card edge connector according to claim 1, wherein: The limiting piece comprises: A limiting piece body, wherein the limiting piece body is provided with the limiting protrusion; The limiting connection section is connected to the limiting piece body and is arranged at an angle to the limiting piece body, and a portion of the limiting connection section is located in the slot.

3. The card edge connector according to claim 2, wherein: The limiting connecting section has a first contact surface located in the slot, the first contact surface is used to contact the board, and the first contact surface is used to be arranged at an angle with a first preset plane.

4. The card edge connector according to claim 1, wherein: The limiting piece is made of an elastic material, and is deformably arranged along a third direction; wherein the third direction is perpendicular to the second direction.

5. The card edge connector according to claim 4, wherein: The base is provided with an unlocking protrusion, and the unlocking protrusion is arranged on the outer surface of the base close to the limiting piece; The limiting piece includes a limiting piece body and a first bending section, the first bending section is connected to the limiting piece body and is arranged at an angle, and the first bending section is arranged against the unlocking protrusion.

6. The card edge connector according to claim 5, wherein: The limiting piece has a second bending section, the second bending section is connected to the limiting piece body and is arranged at an angle, and the bending direction of the second bending section is opposite to the protruding direction of the limiting protrusion.

7. The card edge connector according to claim 4, wherein: One end of the limiting protrusion away from the limiting piece is located at 2 / 3 of the width of the slot.

8. The card edge connector according to any one of claims 1 to 7, wherein: The card edge connector further comprises: An elastic connecting piece, one end of which is connected to the base, and the other end of which is connected to the limiting piece.

9. The card edge connector according to any one of claims 1 to 7, wherein: The slot has a slot opening; wherein: A first stop protrusion is provided on an outer surface of one side of the base close to the limiting piece, and the first stop protrusion is located on a side of the limiting piece close to the slot opening; and / or A second stop protrusion is provided on the outer surface of one side of the base close to the limiting piece, and the second stop protrusion is located on the side of the limiting piece away from the slot opening.

10. The card edge connector according to any one of claims 1 to 7, wherein: The limiting protrusion has a first guiding inclined surface; along the direction in which the limiting protrusion approaches the slot and moves along the first direction, the distance between the first guiding inclined surface and a side surface in the thickness direction of the limiting piece gradually decreases; and / or The limiting protrusion has a second guiding inclined surface; along the insertion direction of the slot, the distance between the second guiding inclined surface and a side surface of the limiting piece in the thickness direction gradually increases.

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