Power inductor structure with conducting sheet plated with metal layer

Abstract

The utility model discloses a power inductor structure with a conducting plate plated with a metal layer, which relates to the field of inductors and comprises an inductor body and the conducting plate arranged on the inductor body, and a silver metal layer is plated on the surface of the conducting plate. A U-shaped shielding cover is fixedly embedded in the bottom of the inductor body and located outside the guide pieces, and a shielding assembly is arranged in the U-shaped shielding cover. The top of the U-shaped shielding cover is provided with a heat conduction assembly in contact with the upper surface of the guide piece, and a ventilation opening is formed in the position, corresponding to the heat conduction assembly, of the side wall of the inductor body. The conductive sheet plated with the metal layer improves the conductivity and the corrosion resistance of the conductive sheet, has a shielding and heat dissipation structure, improves the anti-electromagnetic interference performance and the heat dissipation performance of the conductive sheet, and improves the performance of the power inductor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the inductance field, concretely relates to a power inductance structure of metal layer plating of guide sheet. BACKGROUND

[0002] With the rapid development of electronic technology, power inductance is more and more widely used in various electronic products, from smart phones, tablet computers and other portable devices, to computer mainboards, server power supplies and complex circuit architectures such as automotive electronic systems, power inductance plays an indispensable role. It is mainly responsible for energy storage, filtering and blocking current mutation, ensuring stable operation of the circuit and providing protection for efficient operation of electronic devices.

[0003] Among the many manufacturing processes of power inductance, the guide sheet is one of the key links. The existing guide sheet has poor conductivity and corrosion resistance, and has a short service life. In addition, the guide sheet itself lacks effective electromagnetic shielding capability. In a complex electromagnetic environment, external electromagnetic interference may affect the operation of the power inductance inside through the guide sheet, or the magnetic field of the power inductance itself may interfere with other components.

[0004] Therefore, a power inductance structure of metal layer plating of guide sheet is proposed. SUMMARY

[0005] In view of the above problems of the existing guide sheet of power inductance, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a power inductance structure of metal layer plating of guide sheet, which solves the problems raised in the background art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A power inductance structure of metal layer plating of guide sheet, comprising an inductance body and a guide sheet arranged on the inductance body, the surface of the guide sheet is plated with a silver metal layer; a U-shaped shield is fixedly embedded at the bottom of the inductance body and outside the guide sheet, a shielding assembly is arranged inside the U-shaped shield; a heat conduction assembly is arranged on the top of the U-shaped shield and in contact with the upper surface of the guide sheet, and a ventilation opening is formed in the side wall of the inductance body and corresponds to the position of the heat conduction assembly.

[0009] Preferably, the shielding assembly comprises a plurality of transverse metal wires and a plurality of longitudinal metal wires, and the plurality of transverse metal wires and the plurality of longitudinal metal wires are fixedly connected in a 90° staggered manner.

[0010] Preferably, the transverse metal wires and the longitudinal metal wires are both tin-plated copper wires.

[0011] Preferably, the heat-conducting assembly comprises an insulating heat-conducting sheet and two insulating heat-conducting columns, the two insulating heat-conducting columns are fixedly arranged at the top of the shielding cover, the insulating heat-conducting sheet is fixedly arranged at the lower end of the two insulating heat-conducting columns, and the insulating heat-conducting sheet is arranged in contact with the conducting sheet.

[0012] Further, the insulating heat-conducting sheet and the insulating heat-conducting column are both made of insulating heat-conducting silica gel.

[0013] Preferably, the upper end of the two insulating heat-conducting columns is provided with a heat dissipation hole.

[0014] In the above technical solution, the technical effect and advantages of the utility model are provided:

[0015] 1. The utility model discloses a silver metal layer arranged on the surface of the conducting sheet, which can not only reduce the resistance of the conducting sheet to make the current pass more smoothly, but also can serve as a protective barrier to prevent the conducting sheet from being oxidized or corroded by chemicals.

[0016] 2. The utility model discloses a U-shaped shielding cover and a shielding assembly, which can form a shielding structure outside the conducting sheet to improve the electromagnetic shielding ability of the conducting sheet and avoid interference of external electromagnetic or self electromagnetic on the conducting sheet.

[0017] 3. The utility model discloses a heat-conducting assembly arranged in contact with the conducting sheet, which can conduct the temperature on the surface of the conducting sheet outward to improve the heat dissipation performance of the heat-conducting assembly when the inductor body works. DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a three-dimensional structure schematic view of the utility model Figure 1 It is a three-dimensional structure schematic view of the conducting sheet in the utility model;

[0021] Figure 3 It is a three-dimensional structure schematic view of the utility model Figure 1 It is a structure schematic view of the U-shaped shielding cover in the utility model;

[0022] Figure 4 It is a structure schematic view of the shielding assembly in the utility model; Figure 3

[0023] Figure 5 ​The utility model discloses Figure 3 The structural diagram of the heat conduction assembly.

[0024] Mark explanation:

[0025] 1, inductance main body;2, the fin;3, silver metal layer;4, U-shaped shielding cover;5, shielding assembly;6, heat conduction assembly;7, vent;8, horizontal metal wire;9, longitudinal metal wire;10, insulating heat conduction sheet;11, insulating heat conduction column;12, heat dissipation hole. Specific implementation

[0026] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in the following with the attached drawing.

[0027] The utility model provides a kind of power inductance structure of fin plating metal layer as Figures 1-2 As shown in the figure, including inductance main body 1 and the fin 2 of setting on inductance main body 1, the surface of fin 2 is plated with silver metal layer 3, silver metal layer 3 not only can reduce the resistance of fin 2, make current can pass more smoothly, and can be used as a kind of protective barrier, prevent fin 2 from being oxidized or being corroded by chemical substance.

[0028] In order to improve the shielding performance of fin 2, as Figure 1 And 3 As shown in the figure, the bottom of inductance main body 1 and located at the outside of fin 2 is fixedly embedded with U-shaped shielding cover 4, the inside of U-shaped shielding cover 4 is provided with shielding assembly 5, shielding assembly 5 includes multiple horizontal metal wires 8 and multiple longitudinal metal wires 9, multiple horizontal metal wires 8 and multiple longitudinal metal wires 9 are 90 ° interlaced fixed connection, horizontal metal wire 8 and longitudinal metal wire 9 all adopt tinned copper wire, horizontal metal wire 8 and multiple longitudinal metal wires 9 can form a shielding structure in the outside of fin 2, improve the electromagnetic shielding capacity of fin 2, avoid the interference of outside electromagnetic or self electromagnetic to fin 2.

[0029] Finally, in order to improve the heat dissipation performance of fin 2, as Figure 1 、 3As shown in FIGS. 5, the top of the U-shaped shielding cover 4 is provided with a heat conduction assembly 6 in contact with the upper surface of the guide sheet 2, the sidewall of the inductor body 1 is provided with a ventilation opening 7 corresponding to the position of the heat conduction assembly 6, the heat conduction assembly 6 comprises an insulating heat conduction sheet 10 and two insulating heat conduction columns 11, the two insulating heat conduction columns 11 are fixedly arranged on the top of the shielding cover 4, the insulating heat conduction sheet 10 is fixedly arranged on the lower end of the two insulating heat conduction columns 11, and the insulating heat conduction sheet 10 is in contact with the guide sheet 2, the insulating heat conduction sheet 10 and the insulating heat conduction column 11 are both made of insulating heat conduction silica gel, the upper end of the two insulating heat conduction columns 11 is provided with a heat dissipation hole 12, the temperature on the surface of the guide sheet 2 can be conducted outward through the insulating heat conduction sheet 10 and the insulating heat conduction column 11, and then dissipated outward through the ventilation opening 7, so as to realize cold and heat exchange and improve the heat dissipation performance of the guide sheet 2.

[0030] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. A power inductor structure with a metal-plated conductive sheet, comprising an inductor body (1) and a conductive sheet (2) disposed on the inductor body (1), characterized in that: The surface of the guide plate (2) is plated with a silver metal layer (3); A U-shaped shield (4) is fixedly embedded at the bottom of the inductor body (1) and outside the conductor (2), and a shielding component (5) is provided inside the U-shaped shield (4); The top of the U-shaped shield (4) is provided with a heat-conducting component (6) that is in contact with the upper surface of the guide plate (2), and a vent (7) is provided on the side wall of the inductor body (1) at a position corresponding to the heat-conducting component (6).

2. The power inductor structure with a metal-plated conductor layer according to claim 1, characterized in that: The shielding assembly (5) includes multiple transverse metal wires (8) and multiple longitudinal metal wires (9), which are fixedly connected in a 90° staggered manner.

3. The power inductor structure with a metal-plated conductor layer according to claim 2, characterized in that: Both the transverse metal wire (8) and the longitudinal metal wire (9) are made of tin-plated copper wire.

4. The power inductor structure with a metal-plated conductor layer according to claim 1, characterized in that: The heat-conducting component (6) includes an insulating heat-conducting sheet (10) and two insulating heat-conducting pillars (11). The two insulating heat-conducting pillars (11) are fixedly disposed on the top of the shield (4). The insulating heat-conducting sheet (10) is fixedly disposed at the lower end of the two insulating heat-conducting pillars (11), and the insulating heat-conducting sheet (10) is in contact with the conductive sheet (2).

5. The power inductor structure with a metal-plated conductor layer according to claim 4, characterized in that: Both the insulating heat-conducting sheet (10) and the insulating heat-conducting column (11) are made of insulating heat-conducting silicone.

6. The power inductor structure with a metal-plated conductor layer according to claim 4, characterized in that: The upper ends of both insulating heat-conducting pillars (11) are provided with heat dissipation holes (12).

Images