Circuit board assembly

Abstract

The utility model discloses a circuit board assembly. The circuit board assembly comprises a bottom shell, a clamping piece and a circuit board, the clamping piece comprises a clamping column and a limiting table, one end of the clamping column is fixed to the bottom shell, the limiting table is fixed to the other end of the clamping column, and the area of the cross section of the limiting table is larger than that of the cross section of the clamping column; the circuit board is provided with fixing holes, the fixing holes comprise a first through hole and a second through hole, the first through hole is communicated with the second through hole, the area of the first through hole is larger than that of the second through hole, the area of the first through hole is larger than that of the cross section of the limiting table, and the area of the second through hole is smaller than that of the cross section of the limiting table; after the limiting table penetrates through the first through hole and the clamping column is clamped into the second through hole, the second through hole does not allow the limiting table to penetrate through, and the limiting table abuts against the surface, away from the bottom shell, of the circuit board. By means of the mode, the circuit board can be installed only through movement and clamping actions without the help of external tools, the installation process of the circuit board is effectively simplified, and the installation efficiency of the circuit board is improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of circuit boards, and in particular to a circuit board assembly. Background Art

[0002] A printed circuit board (PCB / PCBA) is a substrate used to connect electronic components. A printed circuit board usually includes a board made of insulating material and a conductive material covering the surface of the board, which is used to transmit electrical signals and electrical energy in the printed circuit board assembly. The printed circuit board is one of the core parts of the printed circuit board assembly. In order to effectively protect the printed circuit board from interference from the external environment and maintain the stability of the printed circuit board to ensure stable transmission of the printed circuit board, it is usually necessary to fix the printed circuit board to the printed circuit board assembly.

[0003] At present, circuit boards are usually fixed to circuit board assemblies with screw structures. During the installation of the circuit boards, not only do external tools need to be used to install the screws, but the screws also need to be installed one by one and checked one by one to see if they are properly installed. This makes the installation process of the circuit boards cumbersome and causes low installation efficiency of the circuit boards. Utility Model Content

[0004] The technical problem mainly solved by the embodiment of the utility model is to provide a circuit board assembly, which can simplify the installation process of the circuit board and improve the installation efficiency of the circuit board.

[0005] To solve the above technical problems, a technical solution adopted in an embodiment of the utility model is: a circuit board assembly is provided, including a bottom shell, a clamping piece and a circuit board; the clamping piece includes a clamping column and a limit platform, one end of the clamping column is fixed to the bottom shell, the limit platform is fixed to the other end of the clamping column, and the cross-sectional area of ​​the limit platform is larger than the cross-sectional area of ​​the clamping column; the circuit board is provided with a fixing hole, the fixing hole includes a first through hole and a second through hole, the first through hole is connected to the second through hole, the area of ​​the first through hole is larger than the area of ​​the second through hole, the area of ​​the first through hole is larger than the cross-sectional area of ​​the limit platform, and the area of ​​the second through hole is smaller than the cross-sectional area of ​​the limit platform; after the limit platform passes through the first through hole and the clamping column is clamped into the second through hole, the second through hole does not allow the limit platform to pass through, and the limit platform abuts against the surface of the circuit board away from the bottom shell.

[0006] Optionally, the clamping component also includes a support column, one end of which is connected to the bottom shell, and the other end of which is connected to the clamping column, and the cross-sectional area of ​​the support column is larger than the cross-sectional area of ​​the clamping column; when the clamping column is inserted into the second through hole, the second through hole does not allow the support column to pass through, and the support column supports the surface of the circuit board facing the bottom shell.

[0007] Optionally, the clamping member also includes an elastic limit member, which is connected to the support column and at least partially protrudes from the end surface of the other end of the support column along the direction from the support column to the limit platform; when the clamping column is inserted into the second through hole, the elastic limit member abuts against the surface of the circuit board facing the bottom shell.

[0008] Optionally, the circuit board is further provided with a limiting hole; when the clamping column is inserted into the second through hole, the elastic limiting member is aligned with the limiting hole, and the elastic limiting member is at least partially inserted into the limiting hole.

[0009] Optionally, the elastic limiting member includes an elastic arm and a limiting portion, one end of the elastic arm is connected to the support column, and the limiting portion is connected to the other end of the elastic arm, and along the direction from the support column to the limiting platform, the limiting portion at least partially protrudes from the end surface of the other end of the support column; when the clamping column is inserted into the second through hole, the limiting portion is at least partially inserted into the limiting hole.

[0010] Optionally, the elastic arm is arranged in an arc shape, with both ends of the elastic arm fixed to the support column, the limiting portion is fixed to the arc-shaped middle part of the elastic arm, and a deformation space is enclosed between the elastic arm and the support column, and the deformation space is used for the elastic arm to deform.

[0011] Optionally, the clamping member further includes reinforcing ribs, and the reinforcing ribs are respectively fixed to the support column and the bottom shell.

[0012] Optionally, the central axis of the clamping column is not in line with the central axis of the limiting platform, and / or the central axis of the clamping column is not in line with the central axis of the supporting column.

[0013] Optionally, a side wall of one end of the limit platform away from the clamping column is provided with an annular inclined surface, the annular inclined surface is arranged around the limit platform, and the annular inclined surface is used to guide the limit platform to pass through the first through hole.

[0014] Optionally, the number of the clamping members and the fixing holes is four groups, the four groups of fixing holes are arranged at four corners of the circuit board, and one clamping member is clamped with one fixing hole.

[0015] The beneficial effects of the embodiment of the utility model are as follows: different from the prior art, the embodiment of the utility model provides a circuit board assembly, including a bottom shell, a clamping member and a circuit board; the clamping member includes a clamping column and a stopper, one end of the clamping column is fixed to the bottom shell, the stopper is fixed to the other end of the clamping column, and the cross-sectional area of ​​the stopper is larger than the cross-sectional area of ​​the clamping column; the circuit board is provided with a fixing hole, the fixing hole includes a first through hole and a second through hole, the first through hole is connected to the second through hole, the area of ​​the first through hole is larger than the area of ​​the second through hole, the area of ​​the first through hole is larger than the cross-sectional area of ​​the stopper, and the area of ​​the second through hole is smaller than the cross-sectional area of ​​the stopper; after the stopper passes through the first through hole, and when the clamping column is clamped into the second through hole, the second through hole does not allow the stopper to pass through, and the stopper abuts against the surface of the circuit board away from the bottom shell. In the above manner, the embodiment of the utility model not only does not require the aid of external tools, but also can complete the installation of the circuit board only through the action of moving and clamping, effectively simplifying the installation process of the circuit board and improving the efficiency of circuit board installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a schematic diagram of the overall structure of the circuit board assembly provided by the embodiment of the utility model;

[0018] Figure 2 It is an exploded view of the overall structure of the circuit board assembly provided by the embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the card connector of the circuit board assembly provided by the embodiment of the utility model;

[0020] Figure 4 The circuit board assembly provided by the embodiment of the utility model is a schematic diagram of the circuit board installation Figure 1 ;

[0021] Figure 5 The circuit board assembly provided by the embodiment of the utility model is a schematic diagram of the circuit board installation Figure 2 ;

[0022] Figure 6 The circuit board assembly provided by the embodiment of the utility model is a schematic diagram of the circuit board installation Figure 3 .

[0023] Description of reference numerals:

[0024] 1-bottom shell, 2-clamping piece, 21-clamping column, 22-limiting platform, 221-annular inclined surface, 23-supporting column, 24-elastic limiting piece, 241-elastic arm, 242-limiting part, 243-deformation space, 25-reinforcement rib, 3-circuit board, 31-first through hole, 32-second through hole, 33-limiting hole, 4-interval space. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0027] See also Figures 1 to 3A circuit board assembly comprises a bottom shell 1, a clamping member 2 and a circuit board 3; the clamping member 2 comprises a clamping column 21 and a limit platform 22, one end of the clamping column 21 is fixed to the bottom shell 1, and the limit platform 22 is fixed to the other end of the clamping column 21, and the cross-sectional area of ​​the limit platform 22 is larger than the cross-sectional area of ​​the clamping column 21; the circuit board 3 is provided with a fixing hole, the fixing hole comprises a first through hole 31 and a second through hole 32, the first through hole 31 is connected to the second through hole 32, the area of ​​the first through hole 31 is larger than the area of ​​the second through hole 32, the area of ​​the first through hole 31 is larger than the cross-sectional area of ​​the limit platform 22, and the area of ​​the second through hole 32 is smaller than the cross-sectional area of ​​the limit platform 22; after the limit platform 22 passes through the first through hole 31 and the clamping column 21 is clamped into the second through hole 32, the second through hole 32 does not allow the limit platform 22 to pass through, and the limit platform 22 abuts against the surface of the circuit board 3 away from the bottom shell 1. Through the above method, not only no external tools are needed, but also the installation of the circuit board 3 can be completed only by moving and clamping, which effectively simplifies the installation process of the circuit board 3 and improves the installation efficiency of the circuit board 3.

[0028] For the above board assemblies, see Figures 4 to 6 In some embodiments, as an example, when installing the circuit board 3, the circuit board 3 is first moved in the vertical direction so that the stopper 22 passes through the first through hole 31, and the clamping column 21 is inserted into the first through hole 31, and then the circuit board 3 is moved in the horizontal direction so that the clamping column 21 is clamped into the second through hole 32, and the stopper 22 abuts against the surface of the circuit board 3 away from the bottom shell 1, and the installation of the circuit board 3 is completed; in some embodiments, as an example, when disassembling the circuit board 3, the circuit board 3 is first moved in the opposite direction in the horizontal direction so that the clamping column 21 is separated from the second through hole 32 and inserted into the first through hole 31, and the stopper 22 is separated from the surface of the circuit board 3 away from the bottom shell 1, and then the circuit board 3 is moved in the opposite direction in the vertical direction so that the clamping column 21 and the stopper 22 pass through the first through hole 31 and are separated from the first through hole 31 in sequence, and the disassembly of the circuit board 3 is completed. In the above manner, not only does it not require the aid of external tools, but it can also be installed by only moving and clamping actions, which effectively simplifies the installation process of the circuit board 3 and improves the installation efficiency of the circuit board 3.

[0029] For the above-mentioned circuit board assembly, in some embodiments, the circuit board assembly also includes a main body part (not shown in the figure), and the main body part (not shown in the figure) is connected to the bottom shell 1 and / or the circuit board 3. It can be understood that the main body part (not shown in the figure) includes but is not limited to a shell, a processor, a power module, an input module (for example: a keyboard, a mouse, a touchpad or a touch screen), an output module (for example: a speaker or a display), a cooling system or a control panel, etc.

[0030] For the above-mentioned limiter 22, please refer to Figures 1 to 3In some embodiments, a side wall of the stopper 22 at one end away from the clamping column 21 is provided with an annular inclined surface, which is arranged around the stopper 22 and is used to guide the stopper 22 to pass through the first through hole 31. In the above manner, during the assembly process, the stopper 22 can be guided to quickly align with the first through hole 31 and quickly pass through the first through hole 31, thereby improving the assembly efficiency.

[0031] For the above mentioned connector 2, see Figures 1 to 3 In some embodiments, the cross-sectional shape of the clamping column 21 is the same as the shape of the second through hole 32. As an example, the clamping column 21 is a circular column, and the second through hole 32 is a circular through hole. In the above manner, the contact area between the side wall of the clamping column 21 and the hole wall of the second through hole 32 can be increased, thereby helping to increase the clamping degree of the clamping column 21 and the second through hole 32, thereby helping to improve the stability of the circuit board 3.

[0032] For the above mentioned connector 2, see Figures 1 to 3 The clamping member 2 further includes a support column 23, one end of which is connected to the bottom shell 1, and the other end of which is connected to the clamping column 21. The cross-sectional area of ​​the support column 23 is larger than the cross-sectional area of ​​the clamping column 21. When the clamping column 21 is clamped into the second through hole 32, the second through hole 32 does not allow the support column 23 to pass through, and the support column 23 supports the surface of the circuit board 3 facing the bottom shell 1. Through the above-mentioned setting of the support column 23, and the setting of the limit platform 22, the movement of the circuit board 3 in the vertical direction can be jointly restricted, which helps to enhance the stability of the circuit board 3. At the same time, the setting of the clamping column 21 and the second through hole 32 can restrict the movement of the circuit board 3 in the horizontal direction, thereby achieving the fixation of the circuit board 3. In addition, through the arrangement of the above-mentioned support column 23, a spacing space 4 can be formed between the surface of the circuit board 3 facing the bottom shell 1 and the surface of the bottom shell 1 facing the circuit board 3. During the use of the circuit board 3, the spacing space 4 can allow air to flow, so that the flowing air can contact the surface of the circuit board 3 facing the bottom shell 1, and the flowing air can contact the surface of the circuit board 3 away from the bottom shell 1, thereby helping to increase the contact area between the circuit board 3 and the flowing air, and effectively improve the heat dissipation efficiency of the circuit board 3; and, when the user installs the circuit board 3, the spacing space 4 can provide the user with sufficient operating space, allowing the user to hold the surface of the circuit board 3 away from the bottom shell 1 and the surface facing the bottom shell 1 at the same time, which helps to improve the convenience of the user in installing the circuit board 3.

[0033] For the above mentioned connector 2, see Figures 1 to 3The clamping member 2 further includes an elastic stopper 24, which is connected to the support column 23 and at least partially protrudes from the end surface of the other end of the support column 23 along the direction from the support column 23 to the stop platform 22; when the clamping column 21 is inserted into the second through hole 32, the elastic stopper 24 abuts against the surface of the circuit board 3 facing the bottom shell 1. The elastic stopper 24 abuts against the surface of the circuit board 3 facing the bottom shell 1, which can increase the friction between the elastic stopper 24 and the surface of the circuit board 3 facing the bottom shell 1, thereby further limiting the movement of the circuit board 3 in the horizontal direction, which helps to further improve the stability of the circuit board 3.

[0034] For the above-mentioned clamping member 2, in order to further limit the movement of the circuit board 3 in the horizontal direction, it is helpful to further improve the stability of the circuit board 3. Figures 1 to 3 The circuit board 3 is also provided with a limiting hole 33; when the clamping column 21 is inserted into the second through hole 32, the elastic limiting member 24 is aligned with the limiting hole 33, and the elastic limiting member 24 is at least partially inserted into the limiting hole 33.

[0035] For the elastic limiting member 24 and the limiting hole 33, please refer to Figures 1 to 3 In some embodiments, the elastic stopper 24 includes an elastic arm 241 and a stopper 242, one end of the elastic arm 241 is connected to the support column 23, the stopper 242 is connected to the other end of the elastic arm 241, and the stopper 242 at least partially protrudes from the end surface of the other end of the support column 23 along the direction from the support column 23 to the stopper 22; when the clamping column 21 is inserted into the second through hole 32, the stopper 242 at least partially inserts into the stopper hole 33. The stopper 242 and the stopper hole 33 have the same shape, which can increase the contact area between the stopper 242 and the stopper hole 33, thereby helping to improve the plug-in stability of the stopper 242 and the stopper hole 33, thereby helping to improve the stability of the circuit board 3.

[0036] For the elastic arm 241 and the limiting portion 242, please refer to Figures 1 to 3 In some embodiments, the elastic arm 241 is arranged in an arc shape, the two ends of the elastic arm 241 are fixed to the support column 23, the limiting portion 242 is fixed to the arc-shaped middle part of the elastic arm 241, and a deformation space 243 is enclosed between the elastic arm 241 and the support column 23, and the deformation space 243 is used for the elastic arm 241 to deform. For the limiting process of the above-mentioned elastic arm 241 and the limiting portion 242, as an example, when the limiting portion 242 abuts against the surface of the circuit board 3 facing the bottom shell 1, the elastic arm 241 bends and deforms, and when the circuit board 3 is moved so that the limiting portion 242 moves to align with the limiting hole and is inserted into the limiting hole 33, the elastic arm 241 recovers its deformation, thereby forming the limiting process of the circuit board 3 by the elastic arm 241 and the limiting portion 242.

[0037] For the above mentioned connector 2, see Figures 1 to 3 The clamping member 2 further includes a reinforcing rib 25, which is respectively fixed to the support column 23 and the bottom shell 1. In the above manner, the structural stability and bearing capacity of the support column 23 can be effectively enhanced, the damage to the support column 23 caused by accidental collision can be reduced, and the impact resistance of the support column 23 can be improved.

[0038] For the above board assemblies, see Figures 1 to 3 , the central axis of the clamping column 21 is not aligned with the central axis of the limiting platform 22, and / or the central axis of the clamping column 21 is not aligned with the central axis of the supporting column 23. In the above manner, when the central axis of the clamping column 21, the central axis of the limiting platform 22 and the central axis of the supporting column 23 are not aligned, additional supporting force can be generated, thereby improving the stability of the overall structure.

[0039] For the above board assemblies, see Figures 4 to 6 , the number of the clips 2 and the fixing holes is four groups, the four groups of fixing holes are arranged at the four corners of the circuit board 3, and one clip 2 is clipped with one fixing hole. Through the above-mentioned method, the clip 2 can provide more balanced support and fixation for the circuit board 3, and can also effectively reduce the probability of the circuit board 3 being loose or shaking during use. In addition, through the above-mentioned method, during the installation process, by moving the circuit board 3, the four groups of fixing holes of the circuit board 3 can be synchronously fixed and matched with the four groups of clips 2, without the need for one-by-one installation and inspection, and without the need for additional adjustment or alignment, which saves installation time and simplifies the installation steps, and effectively improves the installation efficiency of the circuit board 3. It can be understood that the number of the clips 2 and the fixing holes includes but is not limited to four groups, and it is only necessary to satisfy that the number of the clips 2 and the fixing holes is at least two groups.

[0040] The beneficial effects of the embodiment of the utility model are as follows: Different from the prior art, the embodiment of the utility model provides a circuit board assembly, including a bottom shell 1, a clamping member 2 and a circuit board 3; the clamping member 2 includes a clamping column 21 and a limiting platform 22, one end of the clamping column 21 is fixed to the bottom shell 1, and the limiting platform 22 is fixed to the other end of the clamping column 21, and the cross-sectional area of ​​the limiting platform 22 is larger than the cross-sectional area of ​​the clamping column 21; the circuit board 3 is provided with a fixing hole, the fixing hole includes a first through hole 31 and a second through hole 32, the first through hole 31 is connected to the second through hole 32, the area of ​​the first through hole 31 is larger than the area of ​​the second through hole 32, the area of ​​the first through hole 31 is larger than the cross-sectional area of ​​the limiting platform 22, and the area of ​​the second through hole 32 is smaller than the cross-sectional area of ​​the limiting platform 22; after the limiting platform 22 passes through the first through hole 31 and the clamping column 21 is clamped into the second through hole 32, the second through hole 32 does not allow the limiting platform 22 to pass through, and the limiting platform 22 abuts against the surface of the circuit board 3 away from the bottom shell 1. Through the above-mentioned method, the embodiment of the utility model not only does not require the aid of external tools, but also can complete the installation of the circuit board 3 only through the actions of moving and clamping, which effectively simplifies the installation process of the circuit board 3 and improves the installation efficiency of the circuit board 3.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circuit board assembly, characterized in that: include: Bottom shell; The clamping member comprises a clamping column and a limiting platform, wherein one end of the clamping column is fixed to the bottom shell, and the limiting platform is fixed to the other end of the clamping column, and the cross-sectional area of ​​the limiting platform is larger than the cross-sectional area of ​​the clamping column; A circuit board is provided with fixing holes, wherein the fixing holes include a first through hole and a second through hole, the first through hole is connected to the second through hole, the area of ​​the first through hole is larger than the area of ​​the second through hole, the area of ​​the first through hole is larger than the area of ​​the cross section of the limiting platform, and the area of ​​the second through hole is smaller than the area of ​​the cross section of the limiting platform; After the limiting platform passes through the first through hole and the clamping column is clamped into the second through hole, the second through hole does not allow the limiting platform to pass through, and the limiting platform abuts against the surface of the circuit board away from the bottom shell.

2. The circuit board assembly according to claim 1, characterized in that: The clamping member further comprises a support column, one end of which is connected to the bottom shell, and the other end of which is connected to the clamping column, and the cross-sectional area of ​​the support column is larger than the cross-sectional area of ​​the clamping column; When the clamping column is clamped into the second through hole, the second through hole does not allow the supporting column to pass through, and the supporting column supports the surface of the circuit board facing the bottom shell.

3. The circuit board assembly according to claim 2, characterized in that: The clamping member further includes an elastic limiting member, which is connected to the support column, and along the direction from the support column to the limiting platform, the elastic limiting member at least partially protrudes from the end surface of the other end of the support column; When the clamping column is inserted into the second through hole, the elastic limiting member abuts against the surface of the circuit board facing the bottom shell.

4. The circuit board assembly according to claim 3, characterized in that: The circuit board is also provided with a limiting hole; When the clamping column is inserted into the second through hole, the elastic limiting member is aligned with the limiting hole, and the elastic limiting member is at least partially inserted into the limiting hole.

5. The circuit board assembly according to claim 4, characterized in that: The elastic limiting member comprises an elastic arm and a limiting portion, one end of the elastic arm is connected to the support column, the limiting portion is connected to the other end of the elastic arm, and along the direction from the support column to the limiting platform, the limiting portion at least partially protrudes from the end surface of the other end of the support column; When the clamping column is clamped into the second through hole, the limiting portion is at least partially inserted into the limiting hole.

6. The circuit board assembly according to claim 5, characterized in that: The elastic arm is arranged in an arc shape, the two ends of the elastic arm are fixed to the support column, the limiting portion is fixed to the arc-shaped middle part of the elastic arm, and a deformation space is enclosed between the elastic arm and the support column, and the deformation space is used for the deformation of the elastic arm.

7. The circuit board assembly according to claim 2, characterized in that: The clamping member further comprises reinforcing ribs, and the reinforcing ribs are respectively fixed to the supporting column and the bottom shell.

8. The circuit board assembly according to claim 2, characterized in that: The central axis of the clamping column is not in line with the central axis of the limiting platform, and / or the central axis of the clamping column is not in line with the central axis of the supporting column.

9. The circuit board assembly according to claim 1, characterized in that: An annular inclined surface is provided on a side wall of one end of the limiting platform away from the clamping column. The annular inclined surface is arranged around the limiting platform and is used to guide the limiting platform to pass through the first through hole.

10. The circuit board assembly according to any one of claims 1 to 9, characterized in that: The number of the clamping parts and the fixing holes is four groups, the four groups of fixing holes are arranged at the four corners of the circuit board, and one clamping part is clamped with one fixing hole.

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