Circuit board fixing structure and electronic equipment

Abstract

The embodiment of the utility model relates to the technical field of electronic equipment, and discloses a circuit board fixing structure and electronic equipment. The circuit board fixing structure comprises a first circuit board, a second circuit board and a fixing piece. The first circuit board is provided with a first connecting part; the second circuit board is provided with a second connecting part electrically connected with the first connecting part; the fixing piece is respectively connected with the first circuit board and the second circuit board, so that the second circuit board is vertically fixed on the first circuit board. Through the structure, the second circuit board can be kept in a vertical state to be connected with the first circuit board, so that the connection stability of the second circuit board and the first circuit board is effectively enhanced, and the second circuit board is prevented from bending and inclining relative to the first circuit board in a vibration or drop test to cause failure of electrical components.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic equipment, and in particular to a circuit board fixing structure and electronic equipment. Background Art

[0002] With the increasing miniaturization of electronic devices, the space available on a single-layer circuit board is insufficient for mounting electrical components. Therefore, to expand mounting space, a current approach is to install a vertically positioned secondary circuit board on the main circuit board, increasing the space available for mounting electrical components. However, pin headers electrically connect the primary and secondary circuit boards, securing them. If the secondary circuit board is large or contains heavy electrical components, it can bend significantly relative to the primary circuit board during vibration or drop testing, potentially damaging the electrical components and causing the device to malfunction. Utility Model Content

[0003] The main technical problem solved by the embodiments of the present application is to provide a circuit board fixing structure and an electronic device, which can effectively fix the first circuit board and the second circuit board to prevent relative bending and deformation between the two.

[0004] One technical solution employed in an embodiment of the present application is to provide a circuit board fixing structure, comprising a first circuit board, a second circuit board, and a fixing member. The first circuit board is provided with a first connecting member; the second circuit board is provided with a second connecting member electrically connected to the first connecting member; and the fixing member is connected to the first circuit board and the second circuit board, respectively, so that the second circuit board is fixed perpendicularly to the first circuit board.

[0005] In some embodiments, the fixing member includes a base and a support portion connected along a first direction, the base is electrically connected to the first circuit board, the support portion is snap-fitted to the second circuit board, and the first direction is perpendicular to the first circuit board; the base is provided with a fixing column, the first circuit board is provided with a fixing groove, and the fixing column is plug-connected to the fixing groove; or, the base is provided with a fixing groove, the first circuit board is provided with a fixing column, and the fixing column is plug-connected to the fixing groove.

[0006] In some embodiments, the second circuit board includes a main body and a first protrusion connected to each other, the first protrusion extends along the first direction, and a part of the first protrusion is spaced apart from the main body in the second direction to form a first groove, and the first direction is perpendicular to the second direction; the support portion is provided with a first plug-in slot and a first baffle, the first plug-in slot is plug-connected to the first protrusion, and the first baffle is plug-connected to the first groove.

[0007] In some embodiments, the second circuit board also includes a second protrusion connected to the main body, the second protrusion extends along the first direction, and a second groove is formed between a portion of the second protrusion and the main body in the second direction; the support portion is provided with a second plug-in slot and a second baffle, the second plug-in slot is plug-connected to the second protrusion, and the second baffle is plug-connected to the second groove.

[0008] In some embodiments, the support portion is further provided with a third baffle, and the third baffle and the second baffle are arranged on both sides of the second plug-in slot along the second direction, and the second protrusion abuts against the second baffle and the third baffle respectively.

[0009] In some embodiments, a limiting portion is provided on a surface of the third baffle facing the second plug-in slot, and the limiting portion abuts against the second protrusion to limit the second protrusion from moving along the first direction.

[0010] In some embodiments, a first guide portion is provided at the end of the first protrusion; and / or a second guide portion is provided at the end of the second protrusion.

[0011] In some embodiments, along the third direction, the width of the first plug-in slot is equal to the width of the first protrusion; and / or, along the third direction, the width of the second plug-in slot is equal to the width of the second protrusion, and the third direction is perpendicular to the first direction and the second direction.

[0012] In some embodiments, the number of the fixing members is two, and the two fixing members are respectively disposed at two ends of the second circuit board.

[0013] Another technical solution adopted in the embodiment of the present application is: providing an electronic device, including a housing and the above-mentioned circuit board fixing structure.

[0014] The circuit board fixing structure of the embodiment of the present application includes a first circuit board, a second circuit board, and a fixing member. The first circuit board is provided with a first connecting member; the second circuit board is provided with a second connecting member electrically connected to the first connecting member; and the fixing member connects the first circuit board and the second circuit board respectively, so that the second circuit board is fixed vertically to the first circuit board. This structure allows the second circuit board to maintain a vertical connection with the first circuit board, effectively enhancing the stability of the connection between the two and preventing the second circuit board from bending or tilting relative to the first circuit board during vibration or drop tests, which could cause electrical component failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application, the following briefly introduces the drawings required for describing the specific embodiments. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of a circuit board fixing structure according to an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of a fixing member of a circuit board fixing structure according to an embodiment of the present application;

[0018] Figure 3 This is an exploded view of the circuit board fixing structure according to an embodiment of the present application;

[0019] Figure 4 This is a partial cross-sectional view of the circuit board fixing structure according to an embodiment of the present application;

[0020] Figure 5 yes Figure 4 An enlarged view of part A in FIG. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be 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 being "fixed on" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "inside", "outside", "vertical", "horizontal", etc. used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application 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 present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0023] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0024] See also Figures 1 to 3 The circuit board fixing structure 100 of the embodiment of the present application includes a first circuit board 10, a second circuit board 20 and a fixing member 30. A first connecting member 11 is provided on the first circuit board 10, and a second connecting member 21 is provided on the second circuit board 20. The first connecting member 11 and the second connecting member 21 are electrically connected, so that the first circuit board 10 and the second circuit board 20 are electrically conductive. It is understandable that other electrical components can also be provided on the first circuit board 10 and the second circuit board 20. The fixing member 30 connects the first circuit board 10 and the second circuit board 20 respectively, so that the second circuit board 20 is vertically fixed on the first circuit board 10. Through the above structure, the second circuit board 20 can be connected to the first circuit board 10 in a vertical state, which effectively enhances the connection stability between the two and avoids the second circuit board 20 from bending and tilting relative to the first circuit board 10 during vibration or drop tests, which causes failure of the electrical components.

[0025] It can be understood that in some embodiments, the first connecting component 11 can be a pin header welding hole, and the second connecting component 21 can be a pin header connection terminal, which is plugged into the pin header welding hole to achieve electrical connection between the first circuit board 10 and the second circuit board 20 after passing through the tin furnace.

[0026] In some embodiments, see Figure 2 and Figure 3 The fixing member 30 includes a base 31 and a support portion 32 connected along a first direction X. The base 31 is fixedly connected to the first circuit board 10, and the support portion 32 is snap-fitted to the second circuit board 20, thereby enabling the fixing member 30 to vertically fix the second circuit board 20 relative to the first circuit board 10. The first direction X is perpendicular to the plane of the first circuit board 10. It is understood that the base 31 and the support portion 32 can be integrally formed. The base 31 is provided with one of a fixing post 311 and a fixing slot 12, and the first circuit board 10 is provided with the other of the fixing post 311 and the fixing slot 12. When the fixing post 311 and the fixing slot 12 are plugged together, the base 30 can be fixedly connected to the first circuit board 10. Specifically, the base 31 is provided with the fixing post 311, the first circuit board 10 is provided with the fixing slot 12, and the fixing post 311 is plugged into the fixing slot 12; alternatively, the base 31 is provided with the fixing slot 12, the first circuit board 10 is provided with the fixing post 311, and the fixing post 311 is plugged into the fixing slot 12.

[0027] It is understandable that the fixing column 311 can be tinned brass, and the tinned brass and the base 31 are integrally injection molded. Through such a structure, on the one hand, the fixing column 311 and the base 31 can directly form a whole, avoiding secondary assembly in the later stage, reducing assembly steps, and helping to improve production efficiency; on the other hand, tinning on the brass makes it easier to quickly fix the fixing column 311 on the fixing groove 12 of the first circuit board 10 in the tin furnace later.

[0028] In some embodiments, see Figure 4 and Figure 5 The second circuit board 20 includes a main body 22 and a first protrusion 23 connected to each other. The first protrusion 23 extends along a first direction X, and a first groove 231 is formed between a portion of the first protrusion 23 and the main body 22 in a second direction Y. The first direction X and the second direction Y are perpendicular to each other. The support portion 32 is provided with a first insertion groove 321 and a first stopper 322. The first insertion groove 321 is plugged into the first protrusion 23, and the first stopper 322 is plugged into the first groove 231 on the second circuit board 20. Under the action of the first protrusion 23 and the first stopper 322, the support portion 32 and the second circuit board 20 abut against each other in the second direction Y to prevent relative movement of the first circuit board 10 and the second circuit board 20 in the second direction Y.

[0029] In some embodiments, see Figure 5 The second circuit board 20 further includes a second protrusion 24 connected to the main body 22, wherein the first protrusion 23 and the second protrusion 24 are located on the same side of the second circuit board 20 in the second direction Y. The second protrusion 24 also extends along the first direction X, and a second groove 241 is formed in a portion of the second protrusion 24 spaced apart from the main body 22 in the second direction Y. The support portion 32 is provided with a second insertion groove 323 and a second baffle 324. The second insertion groove 323 is pluggably connected to the second protrusion 24, and the second baffle 324 is pluggably connected to the second groove 241. Under the action of the second protrusion 24 and the second baffle 324, the support portion 32 and the second circuit board 20 abut against each other in the second direction Y, thereby preventing relative movement of the first circuit board 10 and the second circuit board 20 in the second direction Y.

[0030] In some embodiments, see Figure 5The support portion 32 further includes a third baffle 325. The third baffle 325 and the second baffle 324 are disposed on either side of the second insertion slot 323 in the second direction Y. The second protrusion 24 abuts between the second baffle 324 and the third baffle 325. The second baffle 324 and the third baffle 325 jointly clamp the second protrusion 24 in the second direction Y, thereby preventing relative movement between the first circuit board 10 and the second circuit board 20 in both the forward and reverse directions of the second direction Y, further enhancing the connection stability between the first circuit board 10 and the second circuit board 20.

[0031] In some embodiments, see Figure 5 A limiting portion 3251 is provided on the surface of the third baffle 325 facing the second insertion slot 323. The limiting portion 3251 abuts against the second protrusion 24, thereby limiting movement of the second protrusion 24 in the first direction X. Specifically, the limiting portion 3251 protrudes from the surface of the third baffle 325. When the second protrusion 24 is inserted into the second insertion slot 323, the second protrusion 24 abuts against the limiting portion 3251 in the first direction X, thereby limiting the second protrusion 24 from leaving the second insertion slot 323 in the reverse direction. This, in turn, limits movement of the second circuit board 20 relative to the first circuit board 10 in the first direction X, ensuring a secure connection between the two.

[0032] In some embodiments, see Figure 5 The end of the first protrusion 23 is provided with a first guide portion 232, which is used to facilitate guiding the first protrusion 23 into the first insertion groove 321, thereby reducing the difficulty of inserting the first protrusion 23 into the first insertion groove 321. The end of the second protrusion 24 is provided with a second guide portion 242, which is used to facilitate guiding the second protrusion 24 into the second insertion groove 323, thereby reducing the difficulty of inserting the second protrusion 24 into the second insertion groove 323.

[0033] In some embodiments, see Figure 2 and Figure 3Along the third direction Z, the width of the first insertion slot 321 is equal to the width of the first protrusion 23. Therefore, when the first protrusion 23 is inserted into the first insertion slot 321, the first protrusion 23 abuts against the sidewalls of the first insertion slot 321 in the third direction Z, thereby restricting movement of the second circuit board 20 relative to the support portion 32 in the third direction Z, and thereby restricting movement of the second circuit board 20 relative to the first circuit board 10 in the third direction Z. The first direction X, the second direction Y, and the third direction Z are mutually perpendicular. Similarly, along the third direction Z, the width of the second insertion slot 323 is equal to the width of the second protrusion 24. Therefore, when the second protrusion 24 is inserted into the second insertion slot 323, the second protrusion 24 abuts against the sidewalls of the second insertion slot 323 in the third direction Z, thereby restricting movement of the second circuit board 20 relative to the support portion 32 in the third direction Z, and thereby restricting movement of the second circuit board 20 relative to the first circuit board 10 in the third direction Z.

[0034] In some embodiments, see Figure 1 There are two fixing members 30, and the two fixing members 30 are respectively arranged at both ends of the second circuit board 20, so as to fix the second circuit board 20 relative to the first circuit board 10 at the two ends of the second circuit board 20, thereby further increasing the connection stability between the second circuit board 20 and the first circuit board 10.

[0035] This application further provides an electronic device embodiment, which includes a housing and the aforementioned circuit board fixing structure 100, which is disposed inside the housing. The specific structure and function of the circuit board fixing structure 100 can be found in the aforementioned embodiment and will not be described in detail here.

[0036] The circuit board fixing structure 100 of the present embodiment includes a first circuit board 10, a second circuit board 20, and a fixing member 30. The first circuit board 10 is provided with a first connecting member 11; the second circuit board 20 is provided with a second connecting member 21 electrically connected to the first connecting member 11; and the fixing member 30 connects the first circuit board 10 and the second circuit board 20, respectively, so that the second circuit board 20 is fixed vertically to the first circuit board 10. This structure allows the second circuit board 20 to remain vertically connected to the first circuit board 10, effectively enhancing the stability of the connection between the two and preventing the second circuit board 20 from bending or tilting relative to the first circuit board 10 during vibration or drop tests, which could cause electrical component failure.

[0037] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A circuit board fixing structure, characterized in that: include: A first circuit board is provided with a first connecting component; a second circuit board having a second connecting component electrically connected to the first connecting component; Fixing members, respectively connected to the first circuit board and the second circuit board, so that the second circuit board is vertically fixed to the first circuit board; The fixing member includes a base and a support portion connected along a first direction, the base is electrically connected to the first circuit board, and the support portion is snap-connected to the second circuit board, and the first direction is perpendicular to the first circuit board; The base is provided with a fixing column, the first circuit board is provided with a fixing groove, and the fixing column is plug-connected to the fixing groove; or the base is provided with a fixing groove, the first circuit board is provided with a fixing column, and the fixing column is plug-connected to the fixing groove.

2. The circuit board fixing structure according to claim 1, wherein: The second circuit board includes a main body and a first protrusion connected to each other, the first protrusion extending along the first direction, and a first groove formed in a portion of the first protrusion spaced apart from the main body in a second direction, the first direction being perpendicular to the second direction; The support portion is provided with a first plug-in slot and a first baffle, the first plug-in slot is plug-connected to the first protrusion, and the first baffle is plug-connected to the first groove.

3. The circuit board fixing structure according to claim 2, wherein: The second circuit board further includes a second protrusion connected to the main body, the second protrusion extending along the first direction, and a second groove formed in a portion of the second protrusion spaced from the main body in the second direction; The support portion is provided with a second plug-in slot and a second baffle, the second plug-in slot is plug-connected to the second protrusion, and the second baffle is plug-connected to the second groove.

4. The circuit board fixing structure according to claim 3, characterized in that: The support portion is further provided with a third baffle, and the third baffle and the second baffle are arranged on both sides of the second plug-in slot along the second direction, and the second convex portion abuts against the second baffle and the third baffle respectively.

5. The circuit board fixing structure according to claim 4, characterized in that: A limiting portion is provided on a surface of the third baffle facing the second plugging slot, and the limiting portion abuts against the second protrusion to limit the second protrusion from moving along the first direction.

6. The circuit board fixing structure according to claim 5, characterized in that: The end of the first protrusion is provided with a first guide portion; and / or, A second guide portion is provided at the end of the second protrusion.

7. The circuit board fixing structure according to claim 6, wherein: Along the third direction, the width of the first inserting groove is equal to the width of the first protrusion; and / or, Along the third direction, the width of the second plugging groove is equal to the width of the second protrusion, and the third direction is perpendicular to the first direction and the second direction.

8. The circuit board fixing structure according to any one of claims 1 to 7, characterized in that: There are two fixing members, and the two fixing members are respectively arranged at two ends of the second circuit board.

9. An electronic device, characterized in that: The circuit board fixing structure comprises a housing and the circuit board fixing structure according to any one of claims 1 to 8.

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