A conductive silicone structure
By setting metal conductors in conductive silicone and increasing the metal powder concentration at the end, the problem of high resistivity of conductive silicone is solved, and the low resistivity and high conductivity of conductive silicone is achieved, supporting power transmission applications.
Patent Information
- Application Number
- CN201711113684.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2017-11-13
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2037-11-13
AI Technical Summary
The existing conductive silicone has a high resistivity and cannot be directly used in the field of power transmission. It is necessary to improve its conductivity to achieve its application in power transmission.
A metal conductor, such as copper wire, is provided in the conductive silicone matrix, and the metal powder concentration is increased at the end of the conductive silicone to improve the conductivity of the contact surface, forming a strip-like structure to reduce the resistivity.
By setting metal conductors and increasing the metal powder concentration at the end, the resistivity of conductive silicone is significantly reduced, and the application of conductive silicone in power transmission is realized, supporting the passage of large currents.
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Figure CN107833652B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of conductive materials, and in particular to a conductive silicone structure. Background Art
[0002] Conductive silicone is made by evenly distributing conductive particles such as silver-coated copper powder and nickel-coated graphite powder in silicone. The conductive particles are connected to each other through contact, achieving good conductive properties. The main function of conductive silicone is sealing and electromagnetic shielding. The product can be molded or extruded, and there are sheets or other punched shapes to choose from. Conductive silicone has applications in both military and commercial fields, but due to the high resistivity of the current conductive silicone, it cannot be directly used in the field of power transmission. If conductive silicone is used in power transmission, the first thing to be solved is to improve the conductivity of the conductive silicone. Therefore, how to improve the conductivity of conductive silicone is a problem that needs to be solved urgently. Summary of the invention
[0003] The object of the present invention is to provide a conductive silica gel structure.
[0004] In order to achieve the above-mentioned object of the invention, the embodiment of the present invention provides the following technical solutions:
[0005] A conductive silicone structure comprises a conductive silicone matrix in which a metal conductor is arranged.
[0006] By setting a metal conductor in the conductive silicone matrix, the resistivity of the conductive silicone can be greatly reduced, making it easier for large currents to pass through the conductive silicone.
[0007] Furthermore, the metal conductor is a metal wire. The metal wire is a copper wire. Copper has low resistance and relatively low cost, and is a better choice for conductor material.
[0008] Preferably, the conductive silicone matrix includes two ends and a middle portion between the two ends, and the metal powder concentration at the ends is greater than that in the middle portion. Further, the metal powder is silver powder and / or copper powder. The conductive silicone matrix is electrically connected to other conductive objects (which may also be other conductive silicone matrices) through the ends, and the conductivity of the contact surface of the conductive silicone end can be improved by increasing the metal powder concentration at the ends of the conductive silicone matrix.
[0009] Furthermore, the conductive silica gel matrix is a strip structure, and the cross-section of the strip structure is circular, elliptical, rectangular or regular polygonal.
[0010] Compared with the prior art, the conductive silicone structure provided by the present invention greatly reduces the resistivity of the conductive silicone by arranging a metal conductor in the conductive silicone matrix, making it easier for large currents to pass through the conductive silicone, thereby realizing the application of the conductive silicone in power transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0012] Figure 1 A schematic diagram of a conductive silicone structure provided in an embodiment of the present invention.
[0013] Figure 2 A schematic diagram of another conductive silicone structure provided by an embodiment of the present invention.
[0014] Marking in the figure
[0015] Conductive silicone matrix 101; metal powder 102; metal wire 103. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.
[0017] See also Figure 1-2 The conductive silicone structure provided in this embodiment includes a conductive silicone matrix 101, wherein a metal conductor is disposed in the conductive silicone matrix 101, and the metal conductor runs through both ends of the conductive silicone matrix along the electrical transmission direction of the conductive silicone matrix. By disposing the metal conductor in the conductive silicone matrix 101, the resistivity of the conductive silicone is greatly reduced, which facilitates the passage of large current through the conductive silicone, thereby realizing the application of the conductive silicone in power transmission. The metal conductor can be a metal sheet, a metal strip or a metal wire 103. By using the metal wire 103, a large number of metal wires 103 can be arranged on the conductive silicone matrix 101, thereby further improving the conductivity.
[0018] The metal wire 103 can be made of metal materials such as copper wire, silver wire, etc., but copper wire is preferably used because copper wire has good conductivity and low cost.
[0019] In order to further enhance the conductivity of the conductive silicone structure, as a preferred embodiment, the concentration of the metal powder 102 at the end of the conductive silicone substrate 101 can be increased, that is, the conductive silicone substrate 101 includes two ends and a middle portion located between the two ends, and the concentration of the metal powder 102 at the end is greater than the concentration of the metal powder in the middle portion, for example Figure 2 The metal powder 102 may be silver powder and / or copper powder, which can improve the conductivity of the end contact surface of the conductive silicone substrate 101 .
[0020] like Figure 1-2 As shown, the conductive silicone substrate 101 is a strip structure, and the cross-section of the strip structure is circular, elliptical, rectangular, regular polygonal, or other shapes.
[0021] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A conductive silicone structure for power transmission, characterized in that: The conductive silicone matrix comprises a conductive silicone matrix, in which metal powder is distributed in the silicone to form the conductive silicone matrix, wherein a metal conductor is arranged in the conductive silicone matrix, and the metal conductor runs through both ends of the conductive silicone matrix along the electrical transmission direction of the conductive silicone matrix; the conductive silicone matrix is a strip structure; the metal conductor is a metal wire; the conductive silicone matrix comprises two ends and a middle part between the two ends, and the metal powder concentration at the ends is greater than the metal powder concentration in the middle part.
2. The conductive silicone structure for power transmission according to claim 1, characterized in that: The metal wire is a copper wire.
3. The conductive silicone structure for power transmission according to claim 1, characterized in that: The metal powder is silver powder and / or copper powder.
4. The conductive silicone structure for power transmission according to claim 1, characterized in that: The cross-section of the strip structure is in the shape of a circle, an ellipse, a rectangle or a regular polygon.