Novel conductive column connecting structure
By combining the conical contact surface with the conical groove, and the fastening mechanism of the stud and the threaded groove, the difficulties in disassembling and assembling the conductive post connection structure and the contact impedance problem are solved. This achieves high conductivity and mechanical stability, simplifies the maintenance process, and improves the reliability and applicability of the connection.
Patent Information
- Application Number
- CN202423207564.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-25
Smart Images
Figure CN223638625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of conductive connection structure, in particular to a novel conductive column connection structure. BACKGROUND
[0002] The conductive column connection structure is a connection mode widely used in electronic devices, which is used to realize electrical connection between circuit boards or between circuit boards and other components. At present, the common forms include connector interconnection, welding interconnection and screw interconnection. The connector interconnection mode has limited optional connectors, occupies a large area, and the length of the pin cannot be adjusted at will, which reduces the convenience and universality of use. The welding interconnection is to customize a copper column and then weld the two ends of the copper column to the PCB board. Since the copper column is directly welded, there is no connector base and glue frame, which reduces the occupied area, but this way is difficult to disassemble and repair. The screw interconnection changes the copper column at one end from welding to screw connection to facilitate disassembly, but this structure usually adopts plane contact or simple cylindrical contact surface. Due to the tolerance between various components, the contact area between each copper column and screw nut and the PCB board is different, the impedance of some areas is large, and contact failure may occur, thereby affecting the conductivity and mechanical connection reliability.
[0003] In summary, the existing conductive column connection structure has the technical problems of difficult disassembly and contact impedance and installation tolerance defects. CONTENT OF THE INVENTION
[0004] The present application provides a novel conductive column connection structure, which solves the technical problems of difficult disassembly and contact impedance and installation tolerance defects in the prior art, and achieves the technical effects of reducing the on-off impedance, improving the contact stability and connection reliability.
[0005] In view of the above problems, the present application provides a novel conductive column connection structure, which comprises: a substrate comprising a through hole; a connection assembly fixed on the substrate, the connection assembly comprising a tapered groove arranged at the upper end of the through hole; a conductive column body penetrating through the through hole and being sleeved in the through hole and electrically connected with the connecting piece, one end of the conductive column body being provided with a tapered contact surface, and the other end of the conductive column body being a threaded column, wherein the threaded column is tightened to fix the tapered contact surface and the tapered groove.
[0006] Preferably, the connection assembly comprises a first connecting piece and a second connecting piece; wherein the first connecting piece and the second connecting piece are symmetrically arranged, and the tapered surfaces of the first connecting piece and the second connecting piece are oppositely arranged to form a tapered groove.
[0007] Preferably, the conical contact surface is a conical slope.
[0008] Preferably, the contact angle between the conical contact surface and the conical groove is 30° to 60°.
[0009] Preferably, the conical groove is embedded in the through hole with a first depth, and the first depth is equal to the thickness of the substrate.
[0010] Preferably, the conical groove is embedded in the through hole with a second depth, and the second depth is less than the thickness of the substrate.
[0011] Preferably, the connecting structure further comprises a conductive copper column, and the inner wall of one end of the conductive copper column is provided with a threaded groove.
[0012] Preferably, the number of threads of the threaded groove is the same as the number of threads of the stud.
[0013] Preferably, the outer surface of the conductive column body is coated with a conductive coating, and the coating comprises silver, gold or nickel.
[0014] One or more technical solutions provided in the present application have at least the following technical effects or advantages:
[0015] In the present application, the first connecting member and the second connecting member are symmetrically arranged, and the conical slope is oppositely arranged to form a conical groove. Through the cooperation of the conical groove and the conical contact surface, and the fastening mechanism of the stud and the threaded groove, high conductivity and reliable connection are realized under a small occupied area. Compared with the traditional welding interconnection, the design of the stud makes disassembly more convenient, without the need for professional welding equipment, reduces the skill requirement for the operator, and simplifies the maintenance process. The design of the conical contact surface and the conical groove provides better mechanical stability, so that the connecting structure is not easy to loosen when subjected to external force, and the durability is enhanced. By adjusting the contact angle and depth of the conical contact surface and the conical groove, the contact area is optimized, and the possibility of poor contact due to tolerance is reduced, thereby improving the conductivity. The application of the conductive coating further improves the conductivity, reduces the contact impedance, and ensures efficient transmission of electric current. In addition, the design of the stud allows the length to be adjusted, improving the versatility and practicality of the connecting structure, so that the product can adapt to different application scenarios.
[0016] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented in accordance with the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A structural diagram of a new conductive column connection structure provided by an embodiment of the present application.
[0018] Figure 2 Another structural diagram of a new conductive column connection structure provided by an embodiment of the present application.
[0019] Figure 3 A structural diagram of a specific embodiment of a new conductive column connection structure provided by an embodiment of the present application.
[0020] Reference signs: substrate 10, connection assembly 20, conductive column body 30, conductive copper column 40. DETAILED DESCRIPTION
[0021] The embodiment of the present application provides a new conductive column connection structure, which adds a stud with a tapered groove on the upper layer of the substrate 10, which is used for connection with the other end of the copper stud. One end of the copper stud is welded to the PCB, and the other end of the copper stud is designed with a threaded hole matched with a screw. The copper stud is connected with the stud with a tapered groove by using a screw, which facilitates disassembly, reduces on-off impedance, improves contact stability and connection reliability.
[0022] Reference Figure 1 , the embodiment of the present application provides a new conductive column connection structure, which comprises:
[0023] The substrate 10 comprises a through hole.
[0024] Specifically, the substrate 10 is the basis of the connection structure, which is used for supporting the entire conductive column connection structure. The substrate 10 can be a printed circuit board (PCB) or the like, which can integrate various electronic components, circuits and the like. The through hole provides a through channel for the conductive column body 30, allowing the conductive column body 30 to penetrate and realize conductive connection with the connection assembly 20.
[0025] The connection assembly 20 is fixed on the substrate 10, and the connection assembly 20 comprises a tapered groove, and the tapered groove is arranged at the upper end of the through hole.
[0026] Specifically, the connection assembly 20 is fixed on the substrate 10 and comprises a tapered groove, which is located at the upper end of the through hole. The design of the tapered groove helps to tightly match the tapered contact surface of the conductive column body 30. Such matching can improve the stability and conductive performance of the connection. Such tapered structure can automatically align during assembly, reduce installation error, and provide better shock resistance when subjected to external force.
[0027] A conductive column body 30 penetrates through the through hole and is sleeved in the through hole to conductively connect with the connecting piece. One end of the conductive column body 30 is provided with a tapered contact surface, and the other end of the conductive column body 30 is a threaded stud. The threaded stud is tightened to enable the tapered contact surface to be fixedly matched with the tapered groove.
[0028] Specifically, the conductive column body 30 is the core component of the connecting structure, which penetrates through the through hole and realizes conductive connection with the connecting assembly 20. The tapered contact surface at one end of the conductive column body 30 is matched with the tapered groove of the connecting assembly 20, and the other end is a threaded stud. This design enables the conductive column body 30 not only to conduct current but also to realize mechanical connection with external components (such as a circuit board) through the threaded stud, facilitating disassembly and assembly. The tightening of the threaded stud serves to tightly fix the tapered contact surface of the conductive column body 30 with the tapered groove of the connecting assembly 20. This fastening mechanism not only ensures the stability of the electrical connection but also provides the reliability of the mechanical connection. By adjusting the tightening degree of the threaded stud, different installation requirements can be met to ensure the stability and long-term reliability of the connection.
[0029] Further, the connecting assembly 20 comprises a first connecting piece and a second connecting piece; wherein the first connecting piece and the second connecting piece are symmetrically arranged, and the tapered slopes of the first connecting piece and the second connecting piece are oppositely arranged to form a tapered groove.
[0030] Specifically, the connecting assembly 20 is composed of a first connecting piece and a second connecting piece, and the two connecting pieces are symmetrically fixed on the substrate 10 to ensure the balance and stability of the structure under stress. The tapered slopes of the first connecting piece and the second connecting piece are oppositely arranged to form a tapered groove together, which can more accurately control the shape and size of the tapered groove. The way of forming the tapered groove by two symmetrical connecting pieces enables more uniform dispersion of pressure when matched with the tapered contact surface at one end of the conductive column body 30, ensuring the stability and reliability of the contact. When the threaded stud is tightened, the tapered contact surface of the conductive column body 30 is tightly matched with the tapered groove formed by the first connecting piece and the second connecting piece, and the two opposite tapered slopes act together to better adapt to different installation conditions, reducing problems such as poor contact or looseness caused by installation deviation, thereby ensuring good performance of the entire connecting structure in terms of electrical connection and mechanical fixation.
[0031] Further, the tapered contact surface is a tapered slope.
[0032] Specifically, the design of the conical slope can improve the self-alignment capability of the connection. During the assembly process, the conical slope guides the conical contact surface of the conductive post body 30 to accurately enter the groove, thereby ensuring good contact. As the stud is tightened, the conical slope can gradually and uniformly fit the inner wall of the conical groove, and the interaction force between the conductive post body 30 and the connecting component 20 can be evenly distributed on the contact surface. Due to its geometric shape and structural characteristics, the conical slope can achieve a larger contact area when fitted, automatically adjust the contact position and contact pressure during the tightening of the stud, better adapt to the tolerances that may exist during installation (such as a certain angular or positional deviation between the conductive post body 30 and the connecting component 20 due to manufacturing or assembly errors), effectively avoid problems such as poor contact and looseness caused by installation errors, and thereby ensure good electrical conductivity and mechanical stability.
[0033] Further, the contact angle between the conical contact surface and the conical groove is 30° to 60°.
[0034] Specifically, the selection of the contact angle directly affects the size of the contact area. A contact angle range of 30° to 60° can provide sufficient contact area to ensure good electrical connection and mechanical stability, while avoiding the problem of excessive contact area that may cause excessive installation space occupation. The contact angle range of 30° to 60° can take into account different installation situations and usage requirements. It can ensure that the conical contact surface and the conical groove can be smoothly fitted during installation, quickly achieve good electrical conductivity, and effectively reduce the contact resistance between the conical contact surface and the conical groove. It can also adapt to various forces that may occur during long-term use, such as stress changes caused by vibration, thermal expansion and contraction, etc., thereby ensuring the reliability and stability of the entire conductive post connection structure in terms of electrical connection and mechanical connection.
[0035] Further, the conical groove is embedded in the through hole with a second depth, and the second depth is less than the thickness of the substrate 10.
[0036] Specifically, the depth of the conical groove refers to the vertical distance from the upper surface of the through hole to the bottom of the conical groove. Referring to Figure 1 In one embodiment, the conical groove is embedded in the through hole, and the depth of the conical groove is equal to the thickness of the substrate 10. When the depth of the conical groove matches the thickness of the substrate 10, the contact area between the conical groove and the substrate 10 can be maximized, thereby improving the mechanical strength of the connection.
[0037] Further, the conical groove is embedded in the through hole with a second depth, and the second depth is less than the thickness of the substrate 10.
[0038] Specifically, referring to Figure 2In an embodiment, the tapered recess is embedded in the through hole, and the depth of the tapered recess is less than the thickness of the substrate 10, that is, the tapered recess does not penetrate the entire substrate 10. Although the depth of the tapered recess is reduced, as long as the tapered contact surface and the tapered recess can be effectively matched, reliable conductive connection can still be achieved, thereby ensuring the normal operation of the entire conductive column connection structure in the electronic device. This way can cope with different thicknesses of the substrate 10, and when facing circuit boards of various specifications, effective electrical connection can still be ensured, increasing the applicable scenarios of the connection structure.
[0039] Further, referring to Figure 3 The connection structure further comprises a conductive copper column 40, and the inner wall of one end of the conductive copper column 40 is provided with a threaded recess.
[0040] Specifically, the conductive copper column 40 is an important component in the connection structure, which is made of copper material and mainly serves the purpose of conducting electricity. The conductive copper column 40 is connected to the stud of the conductive column body 30 through the threaded recess in the inner wall of one end by screwing. Threaded connection is a detachable connection method. During installation, maintenance or upgrading, if the connection structure needs to be adjusted, the stud can be easily unscrewed from the threaded recess without damaging other components.
[0041] Further, the number of threads of the threaded recess is the same as the number of threads of the stud.
[0042] Specifically, the number of threads refers to the number of complete threads in the threaded structure along the axial direction of the threaded cylinder (here, the threaded recess of the conductive copper column 40 and the stud of the conductive column body 30). The number of threads of the threaded recess is the same as the number of threads of the stud, which can ensure perfect fit between the two when the stud is screwed into the threaded recess. After tightening, the contact area and contact pressure distribution between the threaded recess and the stud can approach the ideal state, thereby reducing the contact resistance and enabling smooth conduction of electric current between the conductive column body 30 and the conductive copper column 40, improving the mechanical stability and electrical reliability of the connection structure, and ensuring the normal operation of the entire conductive column connection structure in the electronic device. If the number of threads is different, it may not be possible to completely screw the stud into the threaded recess, or interference may occur between the threads during screwing, which is prone to looseness when subjected to vibration or external force, affecting the stability of the connection structure.
[0043] Further, the outer surface of the conductive column body 30 is coated with a conductive coating, and the coating comprises silver, gold or nickel.
[0044] Specifically, by applying a coating layer on the outer surface of the conductive post body 30, the conductivity of its surface can be improved, and the resistance when current passes through can be reduced. Silver, gold, and nickel are all metal materials with good conductivity. When a silver coating is used, since silver has extremely high conductivity, it can significantly reduce the resistance of the surface of the conductive post body 30. This is very beneficial for the efficient transmission of current, especially in electronic devices that require high conductivity. When a gold coating is used, since gold has extremely high chemical stability, in addition to providing good conductivity, the gold coating can prevent the conductive post body 30 from being oxidized. In some complex electronic environments, such as high humidity or the presence of chemically corrosive substances, the gold coating can protect the conductive post body 30 and ensure its long-term stable conductivity. The nickel coating focuses on improving the wear resistance and corrosion resistance of the conductive post body 30. In some use scenarios that may be subject to mechanical friction or chemical corrosion, the nickel coating can protect the surface of the conductive post body 30 while also improving its conductivity to some extent.
[0045] The design of the conductive coating can improve the conductivity, chemical stability, wear resistance, etc. of the conductive post body 30 according to different use requirements, thereby enhancing the reliability and applicability of the entire conductive post connection structure in electronic devices.
[0046] In summary, the novel conductive post connection structure provided by the embodiments of the present application has the following technical effects:
[0047] The embodiments of the present application form a tapered groove through the symmetrical arrangement of the connecting pieces and the opposite arrangement of the tapered inclined surfaces. Through the cooperation of the tapered groove and the tapered contact surface, as well as the fastening mechanism of the stud and the threaded groove, high conductivity and connection reliability are achieved with a small occupied area. Compared with traditional welding interconnection, the design of the stud makes disassembly more convenient, without the need for professional welding equipment, reducing the skill requirements for operators and simplifying the maintenance process. The design of the tapered contact surface and the tapered groove provides better mechanical stability, making the connection structure less likely to loosen when subjected to external forces, thereby enhancing durability. By adjusting the contact angle and depth of the tapered contact surface and the tapered groove, the contact area is optimized, reducing the possibility of poor contact due to tolerances, thereby improving the conductivity. The application of the conductive coating further improves the conductivity and reduces the contact impedance, ensuring efficient transmission of current. In addition, the design of the stud allows for length adjustment, improving the versatility and practicality of the connection structure, so that the product can adapt to different application scenarios.
[0048] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A novel electrically conductive post connection structure, characterized by, The connecting structure comprises: a substrate comprising a through hole; a connecting component fixed on the substrate, the connecting component comprising a tapered groove arranged at an upper end of the through hole; a conductive column body penetrating through the through hole, sleeved in the through hole and conductively connected with the connecting component, one end of the conductive column body being provided with a tapered contact surface, and the other end of the conductive column body being a threaded stud, wherein the threaded stud is tightened to fix the tapered contact surface and the tapered groove.
2. The connection structure according to claim 1, wherein The connecting component comprises a first connecting piece and a second connecting piece. The first connecting piece and the second connecting piece are symmetrically arranged, and tapered inclined surfaces of the first connecting piece and the second connecting piece are oppositely arranged to form a tapered groove.
3. The connection structure according to claim 2, wherein The tapered contact surface is a tapered inclined surface.
4. The connection structure according to claim 1, wherein The contact angle between the tapered contact surface and the tapered groove is 30° to 60°.
5. The connection structure according to claim 1, wherein The tapered groove is arranged in the through hole with a first depth, and the first depth is equal to the thickness of the substrate.
6. The connection structure according to claim 5, wherein The tapered groove is embedded in the through hole with a second depth, and the second depth is less than the thickness of the substrate.
7. The connection structure according to Claim 1, wherein The connecting structure further comprises a conductive copper column, an inner wall of one end of the conductive copper column being provided with a threaded groove, the threaded stud of the conductive column body being screwed with the threaded groove.
8. The connection structure according to claim 7, wherein The number of threads of the threaded groove is the same as the number of threads of the threaded stud.
9. The connection structure according to Claim 1, wherein An outer surface of the conductive column body is provided with a conductive coating, and the coating comprises silver, gold or nickel.