A connection structure between circuit boards
Patent Information
- Application Number
- CN202522620661.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-10
AI Technical Summary
无论是公母连接器还是导电支架都需要占用较大空间，因此不利于电源模块的小型化
[0012]本实用新型的电路板之间的连接结构，包括待连接的第一电路板和第二电路板、多个导电螺柱、多个导电螺钉以及多个导电固定孔；所述多个导电螺柱焊接在所述第一电路板的面向所述第二电路板的第一侧面上；所述多个导电固定孔贯通设置在所述第二电路板上且与所述多个导电螺柱一一正对；每个所述导电螺柱内设牙纹；每个导电螺钉对应穿过一个导电固定孔并与其正对的所述导电螺柱中的牙纹结合紧固；每个导电固定孔的周边的正面设置正面覆铜，每个导电固定孔的周边的背面设置背面覆铜；每个导电固定孔的所述正面覆铜与其对应的所述导电螺钉接触导通；每个导电固定孔的所述背面覆铜与其对应的所述导电螺柱接触导通；每个所述导电螺钉与其对应的所述导电螺柱接触导通；因此可以直接通过多个导电螺柱、多个导电螺钉以及多个导电固定孔机械固定第一电路板和第二电路板并且实现其电气连接，如此的导电和固定复合结构，整体结构简单、占用空间小，即避免了传统方法中，固定结构与导电结构分开，导致电路板体积大的现象。
Smart Images
Figure CN224844175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to circuit board connections, and more specifically, to a connection structure between circuit boards. Background Technology
[0002] In power modules, two or more circuit boards typically need to be mechanically fixed and electrically connected. Currently, the common methods for achieving this connection are either soldering male and female connectors onto the two circuit boards, or soldering conductive brackets onto the two circuit boards and then securing the conductive brackets with copper busbars and screws. Both male and female connectors and conductive brackets require a significant amount of space, thus hindering the miniaturization of power modules. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a connection structure between circuit boards that is simple in structure and occupies little space, in view of the above-mentioned defects of the prior art.
[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a connection structure between circuit boards, including a first circuit board and a second circuit board to be connected, a first conductive fastener fixed on the first circuit board, a conductive fastening hole opened on the second circuit board, and a second conductive fastener; the second conductive fastener passes through the conductive fastening hole and is combined and fixed with the first conductive fastener. In the connection structure between circuit boards described in this utility model, the first conductive fastener includes a plurality of conductive studs welded to a first side of the first circuit board facing the second circuit board, and the conductive studs are provided with threads.
[0005] In the connection structure between circuit boards described in this utility model, the conductive fixing holes include multiple conductive fixing holes that are disposed through the second circuit board and are respectively aligned with the multiple conductive studs; the second conductive fixing component includes multiple conductive screws; Each conductive screw passes through a corresponding conductive fixing hole and is fastened by engaging the threads in the conductive stud opposite the conductive fixing hole.
[0006] In the connection structure between circuit boards described in this utility model, the conductive stud is a copper stud and the conductive screw is a copper screw.
[0007] In the connection structure between circuit boards described in this utility model, the front side of the periphery of the conductive fixing hole is provided with front copper plating, and the back side of the periphery of the conductive fixing hole is provided with back copper plating.
[0008] In the connection structure between circuit boards described in this utility model, the front copper cladding is in contact with the conductive screw; the back copper cladding is in contact with the conductive stud; and the conductive screw and the conductive stud are in contact.
[0009] The connection structure between circuit boards of this utility model includes a first circuit board and a second circuit board to be connected, a first conductive fastener fixed on the first circuit board, a conductive fastening hole opened on the second circuit board, and a second conductive fastener. The second conductive fastener passes through the conductive fastening hole and is combined and fixed with the first conductive fastener. Therefore, the first circuit board and the second circuit board can be mechanically fixed and electrically connected directly through the first conductive fastener and the second conductive fastener. Such a conductive and fixed composite structure has a simple overall structure and occupies little space, which avoids the phenomenon of large circuit board size caused by the separation of the fixed structure and the conductive structure in traditional methods.
[0010] The technical solution adopted by this utility model to solve its technical problem is: to construct a connection structure between circuit boards, including a first circuit board and a second circuit board to be connected, a plurality of conductive studs, a plurality of conductive screws, and a plurality of conductive fixing holes; the plurality of conductive studs are welded to a first side of the first circuit board facing the second circuit board; The plurality of conductive fixing holes are disposed through the second circuit board and are directly opposite to the plurality of conductive studs; Each of the conductive studs has internal threads; each conductive screw passes through a corresponding conductive fixing hole and engages with the threads in the conductive stud directly opposite it for fastening. The front side of the perimeter of each conductive mounting hole is provided with front copper plating, and the back side of the perimeter of each conductive mounting hole is provided with back copper plating. The copper plating on the front side of each conductive mounting hole is in contact with the corresponding conductive screw; the copper plating on the back side of each conductive mounting hole is in contact with the corresponding conductive stud; and each conductive screw is in contact with its corresponding conductive stud.
[0011] In the connection structure between circuit boards described in this utility model, the conductive stud is a copper stud and the conductive screw is a copper screw.
[0012] The connection structure between circuit boards of this utility model includes a first circuit board and a second circuit board to be connected, multiple conductive studs, multiple conductive screws, and multiple conductive fixing holes. The multiple conductive studs are soldered to a first side of the first circuit board facing the second circuit board. The multiple conductive fixing holes are disposed through the second circuit board and are directly opposite each of the multiple conductive studs. Each conductive stud has internal threads. Each conductive screw passes through a corresponding conductive fixing hole and engages with the threads in the conductive stud opposite it for fastening. The periphery of each conductive fixing hole has a copper-clad surface. The back side of the edge is provided with a copper backing; the copper backing of each conductive fixing hole is in contact with the corresponding conductive screw; the copper backing of each conductive fixing hole is in contact with the corresponding conductive stud; each conductive screw is in contact with the corresponding conductive stud; therefore, the first circuit board and the second circuit board can be mechanically fixed and electrically connected directly through multiple conductive studs, multiple conductive screws and multiple conductive fixing holes. Such a conductive and fixing composite structure has a simple overall structure and occupies little space, thus avoiding the phenomenon of large circuit board size caused by the separation of fixing structure and conductive structure in traditional methods. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the assembly structure of a preferred embodiment of the connection structure between circuit boards of this utility model; Figure 2 This is an exploded structural diagram of a preferred embodiment of the connection structure between circuit boards of this utility model; Figure 3 This is a front view of the second circuit board of the circuit board connection structure of this utility model; Figure 4 This is a schematic diagram of the back of the second circuit board of the circuit board connection structure of this utility model; Figure 5 This is a side view of a preferred embodiment of the connection structure between circuit boards of this utility model. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0015] Figure 1 This is a schematic diagram of the assembly structure of a preferred embodiment of the connection structure between circuit boards of this utility model. (See diagram below.) Figure 1As shown, the connection structure between the circuit boards includes a first circuit board 100 and a second circuit board 200 to be connected, a first conductive fastener fixed on the first circuit board 100, a conductive fastening hole 210 opened on the second circuit board 200, and a second conductive fastener 300; the second conductive fastener 300 passes through the conductive fastening hole 210 and is fixed to the first conductive fastener. In a preferred embodiment of this utility model, the first conductive fastener can be a copper stud, the second conductive fastener can be a copper screw, the first circuit board can be a lower PCB board, and the second circuit board can be an upper PCB board.
[0016] The connection structure between circuit boards of this utility model includes a first circuit board and a second circuit board to be connected, a first conductive fastener fixed on the first circuit board, a conductive fastening hole opened on the second circuit board, and a second conductive fastener. The second conductive fastener passes through the conductive fastening hole and is combined and fixed with the first conductive fastener. Therefore, the first circuit board and the second circuit board can be mechanically fixed and electrically connected directly through the first conductive fastener and the second conductive fastener. Such a conductive and fixed composite structure has a simple overall structure and occupies little space, which avoids the phenomenon of large circuit board size caused by the separation of the fixed structure and the conductive structure in traditional methods.
[0017] Figure 2 This is an exploded structural diagram of a preferred embodiment of the connection structure between circuit boards of this utility model. Figure 3 This is a front view of the second circuit board of the circuit board connection structure of this utility model. Figure 4 This is a schematic diagram of the back of the second circuit board of the circuit board connection structure of this utility model. Figure 5 This is a side view of a preferred embodiment of the connection structure between circuit boards of this utility model.
[0018] like Figure 2As shown, in a preferred embodiment of this utility model, the connection structure between the circuit boards includes a first circuit board 100 to be connected, a second circuit board 200, a plurality of conductive studs 110 soldered to a first side surface 120 of the first circuit board 100 facing the second circuit board 200, a plurality of conductive fixing holes 210 disposed through the second circuit board 200 and respectively corresponding to the plurality of conductive studs 110, and a plurality of conductive screws 310. The conductive studs 110, the conductive fixing holes 210, and the conductive screws 310 correspond one-to-one. Each conductive screw 310 passes through a corresponding conductive fixing hole 210 and engages with the threads in the conductive stud 110 corresponding to the conductive fixing hole 210 for fastening. In a preferred embodiment of this utility model, the conductive studs 110 are copper studs 110, and the conductive screws 310 are copper screws.
[0019] Further as Figures 3-4 The conductive fixing hole 210 has a front copper plating 211 on its front side and a back copper plating 212 on its back side. The front copper plating 211 is in contact with the conductive screw 310 and is conductive; the back copper plating 212 is in contact with the conductive stud 110 and is conductive; the conductive screw 310 and the conductive stud 110 are in contact with each other and are conductive.
[0020] Combination Figure 1-4 This utility model also discloses a connection structure between circuit boards, including a first circuit board 100, a second circuit board 200, a plurality of conductive studs 110, a plurality of conductive screws 310, and a plurality of conductive fixing holes 210; the plurality of conductive studs 110 are soldered to a first side 120 of the first circuit board 100 facing the second circuit board 200; the plurality of conductive fixing holes 210 are disposed through the second circuit board 200 and are directly opposite to the plurality of conductive studs 110; each conductive stud 110 has internal threads; each conductive screw 310 is paired with... The conductive screw 310 should pass through a conductive fixing hole 210 and engage with the threads of the conductive stud 110 opposite it for fastening. Each conductive fixing hole 210 has a front copper plating 210 on its front periphery and a back copper plating 212 on its back periphery. The front copper plating 211 of each conductive fixing hole 210 is in contact with its corresponding conductive screw 310, and each conductive screw 310 is in contact with its corresponding conductive stud 110. Preferably, the conductive stud 110 is a copper stud, and the conductive screw 310 is a copper screw.
[0021] The circuit board connection structure of this utility model involves copper studs soldered onto a first circuit board. A second circuit board has conductive fixing holes corresponding to the copper stud positions, with copper plating on both the front and back sides of these holes. Copper screws pass directly through these conductive fixing holes on the second circuit board, thus engaging and securing with the threads of the copper studs on the first circuit board. The copper plating 211 on the back side of the second circuit board directly contacts and conducts with the copper studs, while the copper plating 211 on the front side of the second circuit board contacts and conducts with the copper screws. The copper screws also conduct with each other, creating conductivity from both top and bottom, increasing the cross-sectional area and thus increasing the overcurrent. The copper plating 211 on the front side of the second circuit board contacts the copper screws, which then connect to the copper studs, achieving electrical connection with the first circuit board. Therefore, the connection structure between circuit boards of this utility model is simple in structure, low in cost, and occupies little space; it can also serve to fix the circuit boards (no additional screw fixing positions are needed in the middle of the circuit boards); the copper stud holes on the front and back of the second circuit board are copper-plated to increase the current flow area; finally, they are assembled with screws, which can simultaneously complete mechanical fixing and electrical connection, greatly improving assembly efficiency and reducing labor costs; the screw connection provides strong clamping force and strong vibration resistance. Although this utility model has been described through specific embodiments, those skilled in the art should understand that various modifications and equivalent substitutions can be made to this utility model without departing from its scope. Furthermore, various modifications can be made to this utility model for specific situations or materials without departing from its scope. Therefore, this utility model is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this utility model.
[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A connection structure between circuit boards, characterized in that, It includes a first circuit board and a second circuit board to be connected, a first conductive fastener fixed on the first circuit board, a conductive fastening hole opened on the second circuit board, and a second conductive fastener; the second conductive fastener passes through the conductive fastening hole and is combined and fixed with the first conductive fastener.
2. The connection structure between circuit boards according to claim 1, characterized in that, The first conductive fastener includes a plurality of conductive studs welded to a first side of the first circuit board facing the second circuit board, and the conductive studs are provided with threads.
3. The connection structure between circuit boards according to claim 2, characterized in that, The conductive fixing holes include multiple conductive fixing holes that pass through the second circuit board and are respectively directly opposite to the multiple conductive studs; the second conductive fixing component includes multiple conductive screws; Each conductive screw passes through a corresponding conductive fixing hole and is fastened by engaging the threads in the conductive stud opposite the conductive fixing hole.
4. The connection structure between circuit boards according to claim 3, characterized in that, The conductive stud is a copper stud, and the conductive screw is a copper screw.
5. The connection structure between circuit boards according to claim 3, characterized in that, The front side of the periphery of the conductive fixing hole is provided with front copper plating, and the back side of the periphery of the conductive fixing hole is provided with back copper plating.
6. The connection structure between circuit boards according to claim 5, characterized in that, The front copper plating is in contact with the conductive screw and conducts electricity; the back copper plating is in contact with the conductive stud and conducts electricity; the conductive screw and the conductive stud are in contact with each other and conduct electricity.
7. A connection structure between circuit boards, characterized in that, It includes a first circuit board, a second circuit board, multiple conductive studs, multiple conductive screws, and multiple conductive fixing holes; The plurality of conductive studs are soldered to the first side of the first circuit board facing the second circuit board; The plurality of conductive fixing holes are disposed through the second circuit board and are directly opposite to the plurality of conductive studs; Each of the conductive studs has internal threads; each conductive screw passes through a corresponding conductive fixing hole and engages with the threads in the conductive stud directly opposite it for fastening. The front side of the perimeter of each conductive mounting hole is provided with front copper plating, and the back side of the perimeter of each conductive mounting hole is provided with back copper plating. The copper plating on the front side of each conductive fixing hole is in contact with the corresponding conductive screw; the copper plating on the back side of each conductive fixing hole is in contact with the corresponding conductive stud; and each conductive screw is in contact with the corresponding conductive stud.
8. The connection structure between circuit boards according to claim 7, characterized in that, The conductive stud is a copper stud, and the conductive screw is a copper screw.