Edge connector and circuit board assembly

Abstract

The invention relates to the technical field of edge connectors, in particular to an edge connector and a circuit board assembly, the edge connector comprises a circuit board main body, a buffer structure and a plug board structure, and the circuit board main body is electrically connected with the plug board structure through the buffer structure; the plug board structure is used for being plugged with a connector, the buffer structure has a set deformation quantity, and the buffer structure is used for absorbing an acting force transmitted to the plug board structure by the circuit board main body through deformation. According to the technical scheme, the plug board structure and the connector connected with the plug board structure can be effectively protected, the connector is simple in structure, the disassembly and assembly operation is time-saving, labor-saving and cost-saving, the space of a main board cannot be additionally occupied, and the influence on the layout of the main board is avoided or reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of edge connector, and particularly relates to an edge connector and a circuit board assembly. BACKGROUND

[0002] Various external devices such as a display card, a plug-in storage and the like are connected to a mainboard, a connector is arranged on the mainboard, an edge connector, namely a golden finger, is arranged on the external device, the edge connector is inserted into the connector on the circuit board, and the connection between the mainboard and the external device is realized.

[0003] If only the insertion is performed between the external device and the mainboard, the edge connector is easily broken, the connector key is easily broken, or the external device is easily dropped during the shaking or impact test.

[0004] In view of the above technical problems, a retaining frame can be additionally arranged on the external device to assist in fixing the external device, but the connection strength of the retaining frame is limited, and stable installation cannot be ensured. Alternatively, a metal support and a metal back plate can be arranged, the metal support and the metal back plate are respectively arranged on two sides of the mainboard, the metal support and the metal back plate are connected through screws, and the connector and the external device are fixed in a clamping manner. However, this method needs to use multiple screws, has high cost, and has complex assembly operation. The screw holes occupy a certain space of the mainboard, affect the layout and wiring of the mainboard, and cannot ensure stable installation as the weight of the external device increases. SUMMARY

[0005] To solve at least the above technical problems in the prior art, the present application provides an edge connector and a circuit board assembly.

[0006] In one aspect, the present application provides an edge connector, which comprises a circuit board body, a buffer structure and an insertion plate structure, the circuit board body is electrically connected with the insertion plate structure through the buffer structure, the insertion plate structure is used for being inserted into a connector on a mainboard connected with the edge connector, and the buffer structure has a set deformation amount and is used for absorbing an acting force transmitted from the circuit board body to the insertion plate structure through deformation to relieve the force transmitted to the insertion plate structure.

[0007] In some embodiments, a notch with a set length is arranged on the circuit board body, a long side in the notch is electrically connected with the insertion plate structure through the buffer structure, and the buffer structure and part of the insertion plate structure are located in the notch.

[0008] In some embodiments, the circuit board body and the insertion plate structure are an integral structure, a groove with a set length and a set width is arranged between the circuit board body and the insertion plate structure, and the bottom of the groove forms the buffer structure.

[0009] In some embodiments, the groove is formed by milling through a numerical control device.

[0010] In some embodiments, the direction from the circuit board body to the connector board structure is the width direction of the groove; the width of the groove ranges from 0.2mm to 0.5mm.

[0011] In some embodiments, the buffer structure comprises a flexible circuit board; the circuit board body is electrically connected to the connector board structure through the flexible circuit board.

[0012] In some embodiments, the buffer structure is arched.

[0013] Another aspect of the present application also provides a circuit board assembly comprising the edge connector.

[0014] In some embodiments, further comprising a mounting bracket and a mounting screw; the connector board structure is connected to the mounting bracket through the mounting screw; by adjusting the mounting position of the mounting screw on the mounting bracket, the arching height of the buffer structure is adjusted.

[0015] In some embodiments, further comprising a damping pad; the damping pad is sleeved on the mounting screw; the damping pad is located between the screw cap of the mounting screw and the connector board structure.

[0016] The edge connector and the circuit board assembly provided by the present application set a buffer structure between the circuit board body and the connector board structure; when the circuit board body is subjected to external force, the buffer structure deforms to absorb the force, thereby avoiding or reducing the force transmitted to the connector board structure, so as to protect the connector board structure. The technical solution of the present application can effectively protect the connector board structure and the connector connected to the connector board structure; the structure of the connector is simple, and the disassembly and assembly operation is convenient and labor-saving, which saves cost and does not occupy the space of the main board, thereby avoiding / reducing the influence on the layout of the main board. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the example embodiments of the present application will be readily understood through reading the following detailed description of the example embodiments of the present application taken in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation in which: In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0018] Figure 1 The structural schematic diagram of the edge connector provided by the embodiments of the present application; Figure 2 The sectional view of the edge connector provided by the embodiments of the present application; Figure 3A structural schematic diagram of a circuit board assembly provided by an embodiment of the present application is shown in the figure. Figure 4 A sectional view of a mounting screw in the circuit board assembly provided by an embodiment of the present application is shown in the figure.

[0019] In the figure: 10: circuit board body; 20: buffer structure; 30: plug-in board structure; 40: mounting bracket; 50: mounting screw; 60: damping pad; 11: notch; 21: groove. DETAILED DESCRIPTION

[0020] In order to make the purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] An edge connector provided by an embodiment of the present application includes a circuit board body, a buffer structure and a plug-in board structure. The circuit board body and the plug-in board structure are the same as the existing circuit board. The buffer structure that can be deformed under force is arranged between the two structures, so that the force received by the circuit board body is absorbed by the buffer structure and cannot be or cannot be completely transmitted to the plug-in board structure, thereby protecting the plug-in board structure.

[0022] The various structures of the edge connector and the circuit board assembly provided by the embodiments of the present application, the positional relationship and connection relationship between the structures will be described in detail below with reference to the accompanying drawings.

[0023] As shown in the figure, Figure 1 and Figure 2 In the embodiment of the present application, the circuit board body 10 is electrically connected to the plug-in board structure 30 through the buffer structure 20. Exposed metal contacts are arranged on the plug-in board structure 30. The plug-in board structure 30 is plugged into the connector on the main board, so that the circuit board body 10 can be in communication with the main board, thereby realizing the corresponding functions.

[0024] For example, the hardware structure composed of the circuit board body 10 is a graphics card, a memory stick, etc.

[0025] In the embodiment of the present application, the buffer structure 20 is added, and the new structure plays a buffering role, which can absorb the force transmitted by the circuit board body 10, offset or absorb most of the force through deformation, thereby avoiding / reducing the influence of the force on the connector plate structure 30. Among them, the buffer structure 20 includes a metal line, which is used to connect the circuit board body 10 and the connector plate structure 30, that is, a new structure is arranged between the circuit board body 10 and the connector plate structure 30, but it will not affect the electrical performance of the circuit board.

[0026] A structure with a thinner thickness is arranged between the circuit board body 10 and the connector plate structure 30, which is assembled with the circuit board body 10 and the connector plate structure 30 to form a groove 21. The groove 21 between the circuit board body 10 and the connector plate structure 30 can be a separate structure or an integral structure.

[0027] For example, the circuit board body 10 and the connector plate structure 30 are an integral structure; the groove 21 with a set length and a set width is arranged between the circuit board body 10 and the connector plate structure 30, and the bottom of the groove 21 forms the buffer structure 20.

[0028] The circuit board body 10 and the connector plate structure 30 have a certain structural strength and cannot be bent and deformed, that is, they have low deformation ability and cannot effectively absorb and buffer. Therefore, the groove 21 is formed between the circuit board body 10 and the connector plate structure 30, and the thickness of the circuit board at the groove 21 structure is less than that of the circuit board body 10 and the connector plate structure 30. It can be bent and deformed, so it has a buffering effect.

[0029] Among them, the circuit part is arranged at the bottom position of the groove 21, so that in the case of forming the groove 21 on the circuit board, the electrical performance of the circuit board will not be affected.

[0030] For example, the groove 21 is formed by CNC milling. When designing the circuit board, the area located in the groove 21 needs to be milled, and the metal line is not designed in this part. Therefore, after CNC milling, the circuit part will not be damaged.

[0031] CNC milling has higher precision for the groove 21, and also has the advantages of high processing efficiency, strong material compatibility, and high surface quality. For example, the machining tolerance of the groove 21 is within 0.1 millimeters during CNC milling.

[0032] Continuing to refer to Figure 1 and Figure 2As shown, in the embodiment of the present application, in order to further improve the deformation amount of the buffer structure 20, the buffer structure 20 can be set as an arched structure. The buffer structure 20 in the arched structure has a larger deformation amount than the buffer structure in the planar structure, and thus has a higher absorption capacity.

[0033] The height of the arched structure is determined according to the relative position between the circuit board body 10 and the plug-in plate structure 30. For example, the position of the circuit board body 10 is fixed, and as the distance between the plug-in plate structure 30 and the circuit board body 10 decreases, the degree of the arch of the buffer structure 20 is higher.

[0034] When the circuit board body 10 is shaken due to impact, the shaking force generated by the circuit board body 10 is applied to the buffer structure 20, the buffer structure 20 deforms, and the deformation absorbs part of the force, avoiding / reducing the force from being transmitted to the plug-in plate structure 30, thereby reducing the probability of the plug-in plate structure 30 being shaken and avoiding the plug-in plate structure 30 being damaged.

[0035] Continuing to refer to Figure 1 As shown, in the embodiment of the present application, the circuit board body 10 is provided with a notch 11 with a set length, and the buffer structure 20 and the plug-in plate structure 30 are formed at the position of the notch 11. The groove 21 is provided through between the circuit board body 10 and the plug-in plate structure 30, that is, the two ends of the buffer structure 20 are not connected to other structures, so that the buffer structure 20 has a high degree of freedom of deformation.

[0036] If the circuit board body 10 is regular in shape, that is, the edge of the circuit board body 10 has no notch 11, the buffer structure 20 and the plug-in plate structure 30 are arranged at the edge position of the circuit board body 10, so that the buffer structure 20 and the plug-in plate structure 30 protrude at the edge position of the circuit board body 10 and occupy a certain space. This design method will make the overall circuit board occupy a larger space, and the structure of the protruding edge is obvious, which is not easy to plug and install.

[0037] Therefore, the notch 11 can be arranged at the edge of the circuit board body 10, the long side in the notch 11 is electrically connected by the buffer structure 20 and the plug-in plate structure 30, the two ends of the buffer structure 20 are not connected to the circuit board body 10, the buffer structure 20 and part of the plug-in plate structure 30 are located in the notch 11, that is, only part of the plug-in plate structure 30 (the part used for plugging with the connector) is located outside the edge of the circuit board body 10, and the overall size of the circuit board can be avoided to be too large, wherein the size of the plug-in plate structure 30 protruding from the notch meets the plugging requirement.

[0038] For example, the direction of the circuit board body 10 to the connector board structure is the width direction of the groove 21; the width of the groove 21 is 0.2-0.5 mm. For example, the width of the groove 21 is 0.3 mm, and the length of the groove 21 is 10 mm. In this size range, the deformation amount of the buffer structure 20 meets the set requirements, can absorb the force transmitted in the direction of the circuit board body 10, and achieves the buffering effect.

[0039] In the embodiment of the present application, the buffer structure 20 is not limited to the structure of the groove 21, and any structure that can meet the deformation energy absorption and electrical requirements can be used as the buffer structure 20. For example, the buffer structure 20 includes a flexible circuit board, and the circuit board body 10 is electrically connected to the connector board structure 30 through the flexible circuit board. The flexible circuit board is a kind of circuit board, which can realize the electrical connection between the circuit board body 10 and the connector board, and the flexible circuit board structure itself is flexible, which can meet the deformation and energy absorption requirements.

[0040] The length, width, and other parameters of the flexible circuit board are not limited; and the flexible circuit board can also be provided in an arched shape to effectively absorb the shaking force.

[0041] As shown in Figures 3 to 4 The circuit board assembly is a hardware element connected to the main board, and further includes a shell, a heat dissipation module, and the like. With the improvement of the performance of the circuit board assembly, the heat generated is also increased, and therefore, a higher specification heat dissipation module and the like is required, which leads to the increase of the weight and size of the circuit board assembly. The mounting bracket 40 is arranged on the shell, and the circuit board body 10 and the connector board structure 30 are connected to the mounting bracket 40 through the mounting screws 50.

[0042] The mounting positions of the circuit board body 10 and the connector board structure 30 can adjust the arch height of the buffer structure 20. For example, the relative positions of the circuit board body 10 and the connector board structure 30 are fixed, and therefore, the arch height of the buffer structure 20 is also fixed after the two structures are mounted. Alternatively, for example, the position of at least one of the circuit board body 10 or the connector board structure 30 is adjustable, and therefore, the relative positions of the circuit board body 10 and the connector board structure 30 can be adjusted, so that the arch height of the buffer structure 20 is adjustable.

[0043] Continuing to refer to Figure 4 In the embodiment of the present application, the circuit board assembly further includes a damping pad, and the damping pad 60 is sleeved on the mounting screw 50; the damping pad 60 is located between the head of the mounting screw 50 and the connector board structure 30.

[0044] When the force received by the circuit board body 10 is transmitted to the plug-in board structure 30, part of the force can be further absorbed under the action of the damping pad 60, further reducing the probability of deformation of the plug-in board structure 30 under impact.

[0045] Taking a graphics card as an example, as the performance of electronic products increases, the size and weight of the graphics card are also increasing. The plug-in board structure 30 of the graphics card is plugged into the connector of the mainboard. When the shaking, impact test or normal use is impacted by external force, the graphics card will shake, and the force generated by the shaking is transmitted to the buffer structure 20, and the buffer structure 20 effectively absorbs the force, avoiding the force being directly transmitted to the plug-in board structure 30, thereby achieving the protection of the plug-in board structure 30.

[0046] The edge connector and the circuit board assembly provided by the application set the buffer structure 20 between the circuit board body 10 and the plug-in board structure 30. When the circuit board body 10 is impacted by external force during use, the buffer structure 20 can deform to absorb the force, avoiding or reducing the force transmitted to the plug-in board structure 30, thereby achieving the protection of the plug-in board structure 30. The technical scheme of the application can effectively protect the plug-in board structure 30 and the connector connected to the plug-in board structure 30, and the structure of the connector is simple, the disassembly and assembly operation is convenient and labor-saving, the cost is saved, and the space of the mainboard is not additionally occupied, avoiding / reducing the impact on the layout of the mainboard.

[0047] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0048] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0049] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An edge connector, characterized in that, It includes a circuit board body (10), a buffer structure (20) and a plug-in board structure (30), wherein the circuit board body (10) is electrically connected to the plug-in board structure (30) through the buffer structure (20); The plug-in board structure (30) is used to plug into the connector on the motherboard connected to the edge connector. The buffer structure (20) has a set deformation, which is used to absorb the force transmitted from the circuit board body (10) to the plug-in board structure (30) through deformation, so as to alleviate the force transmitted to the plug-in board structure (30).

2. The edge connector according to claim 1, characterized in that, The circuit board body (10) is provided with a notch (11) of a set length. The long side inside the notch (11) is electrically connected to the plug-in plate structure (30) through the buffer structure (20), and the buffer structure (20) and part of the plug-in plate structure (30) are located inside the notch (11).

3. The edge connector according to claim 1, characterized in that, The circuit board body (10) and the plug-in board structure (30) are an integral structure; A groove (21) with a set length and a set width is located between the circuit board body (10) and the plug-in board structure (30), and the bottom of the groove (21) forms the buffer structure (20).

4. The edge connector according to claim 3, characterized in that, The groove (21) is formed by milling using CNC equipment.

5. The edge connector according to claim 3, characterized in that, The direction from the circuit board body (10) to the plug-in board structure (30) is the width direction of the groove (21); The width of the groove (21) ranges from 0.2 mm to 0.5 mm.

6. The edge connector according to claim 1, characterized in that, The buffer structure (20) includes a flexible circuit board; The circuit board body (10) is electrically connected to the plug-in board structure (30) through the flexible circuit board.

7. The edge connector according to claim 3 or 6, characterized in that, The buffer structure (20) is arched.

8. A circuit board assembly, characterized in that, Includes the edge connector as described in any one of claims 1 to 7.

9. The circuit board assembly according to claim 8, characterized in that, It also includes a mounting bracket (40) and mounting screws (50), the plug-in plate structure (30) being connected to the mounting bracket via the mounting screws (50); The height of the arch of the buffer structure (20) can be adjusted by adjusting the mounting position of the mounting screw (50) on the mounting bracket.

10. The circuit board assembly according to claim 9, characterized in that, It also includes a vibration damping pad, which (60) is fitted onto the mounting screw (50); The vibration damping pad (60) is located between the head of the mounting screw (50) and the plug plate structure (30).

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