Miniaturized large-current high-voltage airborne power supply filter

Abstract

The utility model relates to the technical field of filters, in particular to a miniaturized large-current high-voltage airborne power supply filter. Comprising a shell, circuit components are arranged in the shell, an aviation socket is arranged at one end of the shell, a gold-plated copper platform is arranged at the end, different from the aviation socket, of the shell, the circuit components comprise a plurality of first capacitors, a plurality of second capacitors and a plurality of third capacitors, and first inductors are connected between the first capacitors and the second capacitors which are adjacent. According to the utility model, the input end of the filter uses the aviation socket to replace a bolt on one side in the prior art, and the output end uses the gold-plated copper platform to replace a bolt on the other side, so that the installation is more convenient and faster, the required operation space is small, a torque wrench is not needed, the size of the whole machine is reduced, and the cost is reduced. The method is suitable for specific aviation scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, and specifically relates to a miniaturized high-current high-voltage airborne power supply filter. Background Technique

[0002] Filters with large current are required in specific aviation usage scenarios. In the prior art, both ends of the filters used are bolt-connected. Bolt connection requires a relatively large operating space, the installation process is more troublesome, and a torque wrench is needed for cooperation. However, in such specific aviation scenarios, it is required that the equipment be installed quickly and have a small volume. Therefore, in view of the problems in the prior art, there is an urgent need for a filter that is quickly and conveniently installed and has a small volume. After the filter is installed in the equipment, the whole machine must meet the requirements of CE102 (10 kHz - 10 MHz power line conducted emission) in GJB151B-2013. Content of the Utility Model

[0003] Problem to be Solved: Provide a filter that is quickly and conveniently installed and has a small volume.

[0004] To achieve the above object, the utility model provides the following technical solution: A miniaturized high-current high-voltage airborne power supply filter. It includes a housing, there are circuit components inside the housing, an aviation socket is provided at one end of the housing, and a gold-plated copper platform is provided at the end different from the aviation socket. The circuit components include multiple first capacitors, multiple second capacitors, and multiple third capacitors. An inductance one is connected between adjacent first capacitor and second capacitor, and an inductance two is connected between adjacent second capacitor and third capacitor.

[0005] Preferably, a plurality of mounting holes are further provided on the housing, and the plurality of mounting holes are symmetrically arranged.

[0006] Preferably, the circuit components further include a resistor, and the resistor is connected in parallel with one of the multiple first capacitors.

[0007] Preferably, the multiple first capacitors are three and are connected in parallel, the multiple second capacitors are two and are connected in series, and the multiple third capacitors are two and are connected in series.

[0008] Preferably, both inductance one and inductance two are common mode inductors.

[0009] Preferably, the material of the housing is 6061 aluminum.

[0010] Preferably, the circuit components are fixed by potting polyurethane.

[0011] Compared with the prior art, the utility model provides a miniaturized high-current high-voltage airborne power filter, which has the following beneficial effects: The input end of the filter of the utility model uses an aviation socket to replace the bolt on one side in the prior art, and the output end uses a gold-plated copper platform to replace the bolt on the other side. The installation is more convenient and fast, requires less operating space, does not need a torque wrench, and the overall volume of the machine is reduced. Combined with the optimized arrangement of internal components, the filter is made more miniaturized to meet the relevant requirements of CE102 in GJB 151B-2013. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The front view of the utility model.

[0013] Figure 2 The top view of the utility model.

[0014] Figure 3 The circuit schematic diagram of the utility model.

[0015] Description of the reference numerals in the drawings: 1, housing; 2, aviation socket; 3, gold-plated copper platform; 4, mounting hole; 5, capacitor one; 6, capacitor two; 7, capacitor three; 8, resistor; 9, inductor one; 10, inductor two. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will describe the technical solutions in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model:

[0017] As shown in the figure, a miniaturized high-current high-voltage airborne power filter includes a housing 1. An aviation socket 2 and a gold-plated copper platform 3 are provided on the housing 1. The aviation socket 2 is the input end, and the gold-plated copper platform 3 is the output end. The aviation socket 2 and the gold-plated copper platform 3 are arranged on two mutually parallel end faces or two mutually perpendicular end faces of the housing 1. Mounting holes 4 are provided on the housing 1, and there are multiple mounting holes 4 and they are symmetrically arranged. Inside the housing 1 are circuit components. The circuit components include three capacitors one 5 connected in parallel, two capacitors two 6 connected in series, and two capacitors three 7 connected in series. One end of the two capacitors two 6 close to each other is connected to the inner wall of the housing 1, and one end of the two capacitors three 7 close to each other is connected to the inner wall of the housing 1. A resistor 8 is also connected in parallel with the capacitor one 5. An inductor one 9 is connected in series between the capacitor one 5 and the capacitor two 6, and an inductor two 10 is connected in series between the capacitor two 6 and the capacitor three 7. The inductor one 9 and the inductor two 10 are both common-mode inductors. The sizes of the inductor one 9 and the inductor two 10 are both 0.2 mH, the size of the capacitor one 5 is 1 μF, the size of the capacitor two 6 is 0.47 μF, and the size of the capacitor three 7 is 1 μF.

[0018] The main purpose of the utility model filter is to perform EMI filtering on the DC 540V power supply of the equipment. The material of the outer shell 1 is 6061 aluminum, which improves the reliability of the product and reduces the weight of the product. The surface of the outer shell 1 is subjected to conductive oxidation treatment to enhance the conductivity of the outer shell surface and enhance the "three-proof" performance of the outer shell surface. The internal guide part of the outer shell 1 is made of gold-plated copper busbar, which has low contact resistance, strong solderability and high reliability. The protection between the internal components of the outer shell 1 and the outer shell 1 is made of 0.2mm polytetrafluoroethylene film, which completely isolates and insulates the components from the outer shell 1. The circuit components are fixed by the process of encapsulating polyurethane to fix the position of the components and improve the electrical strength of the product. The encapsulation uses polyurethane and is cured at 75°C for 2 hours. After the product is encapsulated, high-temperature vacuuming is required to enhance the electrical strength of the encapsulation material. The internal connecting soft leads of the product are made of irradiated cross-linked ethylene-tetrafluoroethylene copolymer insulated wires and cables to meet the maximum current carrying capacity under certain conditions.

[0019] The above embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A miniaturized high-current and high-voltage airborne power filter, comprising a housing (1), wherein the housing (1) contains circuit components, and wherein: An aviation socket (2) is provided on one end of the housing (1), and a gold-plated copper platform (3) is provided on one end different from the aviation socket (2). The circuit components include a plurality of capacitors one (5), a plurality of capacitors two (6), and a plurality of capacitors three (7). An inductor one (9) is connected between adjacent capacitors one (5) and capacitors two (6), and an inductor two (10) is connected between adjacent capacitors two (6) and capacitors three (7).

2. A miniaturized high-current and high-voltage airborne power filter according to claim 1, characterized in that: The housing (1) is also provided with a plurality of mounting holes (4), and the plurality of mounting holes (4) are symmetrically arranged.

3. A miniaturized high-current high-voltage airborne power filter as claimed in claim 2, characterized in that: The circuit components also include a resistor (8), which is connected in parallel with one of the multiple capacitors (5).

4. A miniaturized high-current and high-voltage airborne power filter as claimed in claim 1, characterized in that: The plurality of capacitors one (5) is three and connected in parallel, the plurality of capacitors two (6) is two and connected in series, and the plurality of capacitors three (7) is two and connected in series.

5. A miniaturized high-current and high-voltage airborne power filter as claimed in claim 4, characterized in that: Inductor 1 (9) and inductor 2 (10) are both common-mode inductors.

6. A miniaturized high-current high-voltage airborne power filter as claimed in claim 1, characterized in that: The material of the housing (1) is 6061 aluminum.

7. A miniaturized high-current and high-voltage airborne power filter according to claim 1, characterized in that: The circuit components are fixed by potting polyurethane.

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