Shrapnel, circuit board assembly and terminal equipment

Abstract

The present disclosure relates to a spring clip, a circuit board assembly, and a terminal device. The spring clip includes: a plate-like base, an elastic portion, and a plug-in board; the elastic portion is connected to a first side surface of the plate-like base and is located on one side of the plate surface of the plate-like base; a portion of the first side surface of the plug-in board is connected to a second side surface of the plate-like base, and a portion of the plate surface of the plug-in board is located below the side surface of the plate-like base; the plug-in board is used to be inserted into a fixing hole of a printed circuit board (PCB). Since the flanged solder pins are eliminated, the length of the plug-in board is increased. Under the condition that the length of the fixing hole opened in the PCB is certain, the movable space and the rotatable angle of the increased plug-in board in the fixing hole are reduced, thereby reducing the risk of the plug-in board and the PCB being misaligned.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to a spring, a circuit board assembly, and a terminal device. Background Art

[0002] Shrapnel is widely used in terminal equipment for signal transmission, etc. Such shrapnel is usually directly mounted on the surface of printed circuit boards. Summary of the Invention

[0003] To overcome the problems existing in the related art, the embodiments of the present disclosure provide a spring, a circuit board assembly, and a terminal device. The technical solution is as follows:

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a spring fragment, comprising:

[0005] A plate-shaped base, an elastic portion, and a plug-in plate;

[0006] The elastic portion is connected to the first side surface of the plate-shaped base and is located on one side of the plate surface of the plate-shaped base;

[0007] Part of the side surface of the first side surface of the plug board is connected to the second side surface of the plate-shaped base, and part of the board surface of the plug board is located below the side surface of the plate-shaped base; the plug board is used to be inserted into the fixing hole of the printed circuit board PCB.

[0008] The spring clip disclosed herein comprises a plate-shaped base, an elastic portion, and a plug-in board. The elastic portion is connected to a first side surface of the plate-shaped base and is located on one side of the plate surface of the plate-shaped base. A portion of the first side surface of the plug-in board is connected to a second side surface of the plate-shaped base, and a portion of the plug-in board's surface is located below the side surface of the plate-shaped base. The plug-in board is configured to be inserted into a fixing hole of a printed circuit board (PCB). By eliminating the flanged solder legs, the length of the plug-in board is increased. Given a given length of the fixing hole in the PCB, the increased space available for the plug-in board to move within the fixing hole and the angle of rotation are reduced, thereby reducing the risk of misalignment between the plug-in board and the PCB.

[0009] In one embodiment, welding holes are provided in the plug board; when the plug board is inserted into the fixing holes of the printed circuit board PCB, the welding holes are located on both sides of the PCB board surface.

[0010] In one embodiment, the plug board includes: a connecting board, and pins connected to the connecting board;

[0011] The length of the connecting plate is greater than that of the plug pin, and the connection between the connecting plate and the plug pin is in a stepped structure.

[0012] In one embodiment, the welding hole is located at the connection between the connecting plate and the pin.

[0013] In one embodiment, the area of ​​the welding hole in the connecting plate is the same as the area of ​​the welding hole in the pin.

[0014] In one embodiment, the difference between the length of the pin and the length of the fixing hole of the PCB is a preset value.

[0015] In one embodiment, a limit block is provided in the plug board;

[0016] The limiting block is located on the board surface of the plug board;

[0017] or,

[0018] The limiting block is located on a side surface of the plugboard adjacent to the first side surface.

[0019] According to a second aspect of an embodiment of the present disclosure, there is provided a circuit board assembly, comprising: a printed circuit board PCB and a spring as described in any one of the first aspects;

[0020] A fixing hole is provided in the printed circuit board PCB;

[0021] The plug-in board of the shrapnel is inserted into the fixing hole of the printed circuit board PCB;

[0022] The plug-in plate of the spring piece is fixedly connected to the hole wall of the fixing hole by welding.

[0023] According to a third aspect of an embodiment of the present disclosure, a terminal device is provided, comprising: a circuit board assembly as described in the second aspect above.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] Figure 1 FIG. 1 is a schematic structural diagram of a spring in the related art according to an exemplary embodiment.

[0027] Figure 2 FIG. 1 is a schematic structural diagram of a circuit board assembly in the related art according to an exemplary embodiment.

[0028] Figure 3 FIG. 1 is a bottom view of a circuit board assembly in the related art according to an exemplary embodiment.

[0029] Figure 4 FIG. 1 is a schematic structural diagram of a spring according to a first exemplary embodiment.

[0030] Figure 5 2 is a schematic structural diagram of a spring according to a second exemplary embodiment.

[0031] Figure 6 FIG. 1 is a schematic structural diagram of a spring according to a third exemplary embodiment.

[0032] Figure 7 2 is a schematic structural diagram of a spring according to a fourth exemplary embodiment.

[0033] Figure 8 FIG. 1 is a schematic structural diagram of a spring according to a fifth exemplary embodiment.

[0034] Figure 9 2 is a schematic structural diagram of a spring according to a sixth exemplary embodiment.

[0035] Figure 10 FIG. 1 is a schematic structural diagram of a spring according to a seventh exemplary embodiment.

[0036] Figure 11 FIG. 1 is a schematic structural diagram of a spring according to an eighth exemplary embodiment.

[0037] Figure 12 2 is a schematic structural diagram of a spring according to a ninth exemplary embodiment.

[0038] Figure 13 FIG1 is a schematic structural diagram of a spring according to an exemplary embodiment 10.

[0039] Figure 14 It is a schematic diagram showing the structure of a circuit board assembly according to an exemplary embodiment.

[0040] Figure 15 FIG. 1 is a bottom view of a circuit board assembly according to an exemplary embodiment. DETAILED DESCRIPTION

[0041] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0042] Figure 1 is a schematic structural diagram of a spring in the related art according to an exemplary embodiment. Figure 2 is a structural diagram of a circuit board assembly in the related art according to an exemplary embodiment. Figure 3 FIG. 1 is a bottom view of a circuit board assembly in the related art according to an exemplary embodiment. Figure 1-Figure 3 As shown, the spring clip 1 includes a plate-shaped base 11, an elastic portion 12, two plug-in boards 13, and two flanged solder legs 14; a fixing hole 21 is defined in a printed circuit board (PCB) 2. To secure the spring clip 1 to the PCB 2, the plug-in board 13 of the spring clip 1 is inserted into the fixing hole 21 of the PCB 2, with the flanged solder legs 14 contacting the surface of the PCB 2. The plug-in board 13 is then fixedly connected to the wall of the fixing hole 21 using solder paste. The flanged solder legs 14 are then fixedly connected to the surface of the PCB 2 using solder paste, thereby securing the spring clip 1 to the PCB 2 and forming a circuit board assembly.

[0043] Due to the limitations of the hole-drilling process in PCB2, the diameter of the fixing hole 21 is relatively large, but the length of the plugboard 13 is relatively small. In addition, due to the fluidity of solder paste at high temperatures, the plugboard 13 has a relatively large movable space in the fixing hole 21 when the spring piece is attached to the PCB2 using surface mount technology (SMT). As a result, the plugboard 13 can rotate a large angle in the fixing hole 21, which makes it easy for the plugboard 13 to deviate in the fixing hole 21, resulting in poor reliability of the circuit board assembly.

[0044] In order to solve the above technical problems, the present disclosure proposes a spring.

[0045] Figure 4 FIG. 1 is a schematic structural diagram of a spring according to an exemplary embodiment. Figure 4 As shown, the elastic piece 1 includes a plate-shaped base 11 , an elastic portion 12 and a plug-in board 13 .

[0046] The elastic portion 12 is connected to the first side surface of the plate-like base 11 and is located on one side of the board surface of the plate-like base 11; part of the side surface of the first side surface of the plug-in board 13 is connected to the second side surface of the plate-like base 11, and part of the board surface of the plug-in board 13 is located below the side surface of the plate-like base 11; the plug-in board 13 is used to be inserted into the fixing hole 21 of the printed circuit board PCB2.

[0047] Due to the cancellation Figure 1The flanged weld leg 14 in the spring piece 1 shown makes it possible to increase the length of the plug board 13, that is, part of the side surface of the first side surface of the plug board 13 can be connected to the second side surface of the plate-like base 11, so that a part of the board surface of the plug board 13 is suspended, that is, it is not connected to any part of the plate-like base 11. However, since a part of the plug board 13 is connected to the plate-like base 11, the connection strength between the plug board 13 and the plate-like base 11 will not be affected. Through this structure, the width of the plug board 13 can be designed according to the usage scenario without being affected. Figure 1 The influence of the flange weld foot 14.

[0048] Since the flanged solder feet 14 are eliminated, the length of the plug board 13 is increased. Under the condition that the length of the fixing hole 21 opened in the PCB2 is certain, the longer the length of the plug board 13, the smaller the space for the plug board 13 to move and the angle of rotation within the fixing hole 21, thereby reducing the risk of misalignment between the plug board and the PCB2.

[0049] Moreover, since the length of the plug board 13 is increased, the length of the fixing hole 21 opened in the PCB 2 is now shorter than that of the plug board 13. Figure 2 and Figure 3 The length of the fixing hole 21 opened in the PCB 2 shown is longer, so as to better fit the hole opening process in the PCB 2 , without reducing the length of the fixing hole 21 .

[0050] For example, one structure of the elastic portion 12 is: an elastic arm formed by the plate-shaped base 11 being bent and extended in the reverse direction, and a supporting arm formed by the end of the elastic arm extending toward the plate-shaped base 11 .

[0051] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the spring plate of the present disclosure includes: a plate-shaped base, an elastic portion, and a plug-in board; the elastic portion is connected to a first side surface of the plate-shaped base and is located on one side of the plate surface of the plate-shaped base; a portion of the first side surface of the plug-in board is connected to a second side surface of the plate-shaped base, and a portion of the plate surface of the plug-in board is located below the side surface of the plate-shaped base; the plug-in board is used to be inserted into a fixing hole of a printed circuit board (PCB). Since the flanged solder legs are eliminated, the length of the plug-in board is increased. Under the condition that the length of the fixing hole opened in the PCB is constant, the movable space and the rotatable angle of the increased plug-in board in the fixing hole are reduced, thereby reducing the risk of the plug-in board and the PCB being misaligned.

[0052] In one embodiment, Figure 5 As shown, the plug board 13 is provided with welding holes 131 ; when the plug board 13 is inserted into the fixing hole 21 of the printed circuit board PCB2 , the welding holes 131 are located on both sides of the PCB board surface.

[0053] By adding a welding hole 131 in the plug board 13, more solder can be concentrated in the welding hole 13 during the process of using solder paste to weld and fix the plug board 13 to the hole wall of the fixing hole 21, thereby increasing the welding strength and further reducing the risk of the plug board 13 and PCB2 being misaligned.

[0054] In one embodiment, Figure 6 Shown and Figure 7 As shown, the plug board 13 includes a connecting board 132 and plug pins 133 connected to the connecting board 132 .

[0055] The length of the connecting plate 132 is greater than that of the plug pin 133 , and the connection between the connecting plate 132 and the plug pin 133 is in a stepped structure.

[0056] When the plug board 13 is inserted into the fixing hole 21, by setting the above-mentioned stepped limiting structure, the connecting plate 132 can be placed on the PCB 2 without the need to use other methods to fix the plug board 13 for the welding process, thereby simplifying the process flow.

[0057] In one embodiment, Figure 8 Shown and Figure 9 As shown, the welding hole 131 is located at the connection between the connecting plate 132 and the plug pin 133 .

[0058] Since the connecting plate 132 is placed on the PCB 2 when the plug board 13 is inserted into the fixing hole 21, the welding place is the connection between the connecting plate 132 and the pin 133. Therefore, setting the welding hole 131 there can improve the reliability of welding.

[0059] To further improve the reliability of welding, the area of ​​the welding hole 131 in the connecting plate 132 is the same as the area of ​​the welding hole 131 in the plug pin 133 .

[0060] That is, half of the welding hole 131 is located in the connecting plate 132 , and the other half of the welding hole 131 is located in the plug pin 133 .

[0061] In practical applications, the welding hole 131 may also be referred to as a tinning hole.

[0062] In one embodiment, the difference between the length of the pin 132 and the length of the fixing hole 21 of the PCB 2 is a preset value.

[0063] Under the premise of ensuring that the pin 132 can be inserted into the fixing hole 21, the above preset value is as small as possible, so as to reduce the movable space of the pin 132 in the fixing hole 21 as much as possible, thereby reducing the risk of the pin 132 being offset.

[0064] For example, the preset value may include any value between 0.1 mm and 1 mm, and of course may also be other values. The present disclosure does not limit the specific value of the preset value.

[0065] In one embodiment, a limit block 134 is provided in the plug board 13; Figure 10 As shown, the limiting block 134 is located on the board surface of the plug board 13 .

[0066] In order to ensure that the connecting plate 132 overlaps the PCB2 when the plug board 13 is inserted into the fixing hole 21, a limit block 134 can also be set on the board surface of the plug board 13. At this time, the bottom of the limit block 134 is overlapped on the board surface of PCB2.

[0067] Further, such as Figure 11 As shown, a portion of the welding hole 131 is located on the upper side of the bottom edge of the limit block 134, and the other portion of the welding hole 131 is located on the lower side of the bottom edge of the limit block 134. For example, half of the welding hole 131 is located on the upper side of the bottom edge of the limit block 134, and the other half of the welding hole 131 is located on the lower side of the bottom edge of the limit block 134.

[0068] For example, the limit block 134 may be provided on any one surface of the plug board 13 , or may be provided on both surfaces of the plug board 13 .

[0069] Or, as Figure 12 As shown, the limiting block 134 is located on the side surface of the plug board 13 adjacent to the first side surface.

[0070] In order to ensure that the connecting plate 132 overlaps the PCB2 when the plug board 13 is inserted into the fixing hole 21, a limit block 134 can also be set on the side of the plug board 13. At this time, the bottom of the limit block 134 is overlapped on the board surface of PCB2.

[0071] Further, such as Figure 13 As shown, a portion of the welding hole 131 is located on the upper side of the bottom edge of the limit block 134, and the other portion of the welding hole 131 is located on the lower side of the bottom edge of the limit block 134. For example, half of the welding hole 131 is located on the upper side of the bottom edge of the limit block 134, and the other half of the welding hole 131 is located on the lower side of the bottom edge of the limit block 134.

[0072] For example, the limiting block 134 may be provided on any side surface of the plug board 13 adjacent to the first side surface, or the limiting blocks 134 may be provided on both side surfaces of the plug board 13 adjacent to the first side surface.

[0073] Furthermore, the spring sheet in the present disclosure includes: a reverse spring sheet, or a side spring sheet.

[0074] Figure 14 is a schematic structural diagram of a circuit board assembly according to an exemplary embodiment. Figure 15 FIG. 1 is a bottom view of a circuit board assembly according to an exemplary embodiment. Figure 14 and Figure 15 As shown, the circuit board assembly includes: a printed circuit board PCB2 and a spring 1 as described in any of the above embodiments.

[0075] A fixing hole 21 is provided in the printed circuit board PCB2;

[0076] The plug-in board 13 of the spring 1 is inserted into the fixing hole 21 of the printed circuit board PCB2;

[0077] The plug-in plate 13 of the spring piece 1 is fixedly connected to the hole wall of the fixing hole 21 by welding.

[0078] It is worth noting that Figure 14 Shown is Figure 9 Although the connection diagrams of the spring pieces 1 and PCB 2 in other figures are not shown, their connection structures are similar.

[0079] The present disclosure also provides a terminal device, comprising: the circuit board assembly as described in the above embodiment.

[0080] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0081] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A shrapnel, characterized in that: include: A plate-shaped base, an elastic portion, and a plug-in plate; The elastic portion is connected to the first side surface of the plate-shaped base and is located on one side of the plate surface of the plate-shaped base; Part of the side surface of the first side surface of the plug board is connected to the second side surface of the plate-shaped base, a portion of the board surface of the plug board is suspended, a portion of the board surface of the plug board is not connected to any part of the plate-shaped base, and a portion of the board surface of the plug board is located below the side surface of the plate-shaped base; the plug board is used to be inserted into the fixing hole of the printed circuit board PCB; A welding hole is provided in the plug board, and the position of the welding hole allows more solder to be concentrated in the welding hole during the process of using solder paste to weld and fix the plug board to the hole wall of the fixing hole; The plug board includes: a connecting plate and pins connected to the connecting plate. The length of the connecting plate is greater than that of the pins. The connection between the connecting plate and the pins is in a stepped structure.

2. The shrapnel according to claim 1, characterized in that: When the plug board is inserted into the fixing hole of the printed circuit board PCB, the soldering holes are located on both sides of the PCB surface.

3. The shrapnel according to claim 1, characterized in that: The welding hole is located at the connection between the connecting plate and the plug pin.

4. The shrapnel according to claim 3, characterized in that: The area of ​​the welding hole in the connecting plate is the same as that in the pin.

5. The shrapnel according to claim 1, characterized in that: The difference between the length of the pin and the length of the fixing hole of the PCB is a preset value.

6. The shrapnel according to claim 1, characterized in that: A limit block is provided in the plug board; The limiting block is located on the board surface of the plug board; or, The limiting block is located on a side surface of the plugboard adjacent to the first side surface.

7. A circuit board assembly, characterized in that: include: A printed circuit board (PCB) and a spring as claimed in any one of claims 1 to 6; A fixing hole is provided in the printed circuit board PCB; The plug-in board of the shrapnel is inserted into the fixing hole of the printed circuit board PCB; The plug-in plate of the spring piece is fixedly connected to the hole wall of the fixing hole by welding.

8. A terminal device, characterized in that: include: The circuit board assembly of claim 7.

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