Nanocrystalline filtering high-voltage connector

Abstract

The utility model relates to a nanocrystalline filtering high-voltage connector, the connector comprises a copper bar plastic-coated body, a copper bar assembly, two capacitors, a magnetic ring assembly and a connecting copper seat, the magnetic ring assembly comprises a protective shell upper cover, a magnetic ring and a protective shell, the protective shell upper cover and the protective shell are clamped and connected to form an accommodating space, the magnetic ring is arranged in the accommodating space, and the connecting copper seat is arranged in the accommodating space. The magnetic ring is arranged in the accommodating space; the copper bar assembly comprises a positive electricity copper bar, a negative electricity copper bar, a positive electricity connecting seat and a negative electricity connecting seat, the positive electricity connecting seat and the negative electricity connecting seat are respectively connected with one connecting pin of one capacitor, and the other connecting pin of the two capacitors is connected with the connecting copper seat; the copper bar plastic-coated body is a long plastic body, the copper bar plastic-coated body comprises an annular part and containing grooves formed in the two side faces, and the magnetic ring assembly is arranged on the annular part; and the two capacitors are arranged in the two accommodating grooves. The structure of the product is optimized, and the product can adapt to the assembly requirement while integrating the filtering function.

Description

Technical Field

[0001] This utility model relates to a connector for automobiles, specifically a high-voltage connector with nanocrystal filtering used in inverters of new energy vehicles. Background Technology

[0002] With the development of science and technology and the rapid evolution of automotive products, higher demands are being placed on circuit connectors. Automotive components are a crucial area for my country's automotive industry to participate in globalization. In new energy hybrid vehicles, high-voltage connectors play a vital role; they connect the two ends of the connector's copper busbar to enable the transmission and interaction of current in the inverter. This current transmission and interaction process is typically accompanied by high temperature and high voltage. In practical applications, because the control of hybrid vehicle transmissions requires higher voltages, the demand for electromagnetic compatibility and anti-interference filtering capabilities also increases. However, current filter connector products on the market are limited by space constraints in their design, resulting in magnetic ring performance that cannot meet customer expectations.

[0003] Existing connectors have the following drawbacks in practical use:

[0004] (i) The nanocrystalline magnetic ring was not protected during injection molding; the nanocrystalline magnetic ring was not protected during injection molding.

[0005] Extrusion causes a decrease in the performance of the magnetic ring;

[0006] (ii) The design structure was not properly optimized, resulting in an excessively large product size that is difficult to adapt to different environments.

[0007] Assembly requirements.

[0008] Therefore, it is particularly important to develop a high-voltage connector that integrates filtering functions within a limited design size. Utility Model Content

[0009] The purpose of this invention is to provide a high-voltage connector with nanocrystalline filter used in new energy vehicle inverters that features a reliable, integrated structural design, in order to solve existing technical problems.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A high-voltage connector for nanocrystalline filtering is used for circuit connection in a new energy vehicle inverter. The connector includes a copper busbar coated with plastic, a copper busbar assembly disposed on the copper busbar coated with plastic, two capacitors, a magnetic ring assembly disposed on the copper busbar coated with plastic, and a connecting copper base disposed on the copper busbar coated with plastic. The magnetic ring assembly includes a protective cover, a magnetic ring, and a protective cover. The protective cover and the protective cover are engaged to form an accommodating space, in which the magnetic ring is disposed. The copper busbar assembly includes a positive copper busbar, a negative copper busbar, a positive connecting base, and a negative connecting base. The positive and negative connecting bases are respectively connected to one pin of each of the capacitors, and the other pins of the two capacitors are connected to the connecting copper base. The copper busbar coated with plastic is an elongated plastic body, including an annular portion and accommodating grooves on both sides. The magnetic ring assembly is disposed on the annular portion. The two capacitors are disposed in the two accommodating grooves.

[0012] The high-voltage connector for nanocrystalline filtering described in the preferred embodiment of this application includes two connecting pieces facing opposite directions and a connecting hole. The two connecting pieces and the connecting hole are integrally formed, and the other connecting pins of the two capacitors are respectively connected to the two connecting pieces.

[0013] The high-voltage connector for nanocrystalline filtering described in the preferred embodiment of this application includes a copper busbar encapsulated in a plastic injection molded package that connects the copper busbar assembly, the magnetic ring assembly, and the connecting copper base.

[0014] The high-voltage connector for nanocrystalline filtering described in the preferred embodiment of this application has a 150nF capacitor.

[0015] The high-voltage connector for nanocrystalline filtering described in the preferred embodiment of this application has a nanocrystalline magnetic ring used for filtering.

[0016] The design concept of this application is to improve the existing series of high-voltage connectors and design a high-voltage connector with nanocrystalline filter in the inverter. It adopts an integrated structure design, which integrates the filtering function while maintaining the original high-voltage connector performance and size, so that it can meet the assembly size requirements while realizing the filtering function.

[0017] Due to the adoption of the above technical solutions, this utility model has the following advantages and effects:

[0018] First, the product structure of this application is optimized so that its size remains unchanged after integrating the filtering function, while also being able to adapt to assembly requirements.

[0019] Secondly, the process flow of this application is optimized by first placing the nanocrystalline magnetic ring inside a protective shell for protection.

[0020] Then injection molding is performed to ensure the performance of the magnetic ring.

[0021] Of course, implementing any specific embodiment of the content of this application does not necessarily have all of the above technical effects at the same time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connector's appearance in this application;

[0023] Figure 2 This is an exploded view of the connector in this application;

[0024] Figure 3 This is an exploded view of the magnetic ring assembly of this application;

[0025] Figure 4 This is a schematic diagram of the copper busbar assembly and connecting copper base of this application;

[0026] Figure 5 This is a schematic diagram of the copper base connection in this application;

[0027] Figure 6 This is a schematic diagram of the capacitor in this application. Detailed Implementation

[0028] For ease of understanding, the preferred embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please refer to Figure 1 and Figure 2 This application includes a schematic diagram of the connector's appearance and an exploded view. The connector in this application has an integrated structure and is used in inverters as a high-voltage connector with nanocrystalline filtering. The integrated structure design ensures that the original high-voltage connector's performance and dimensions are maintained while integrating filtering functions, enabling it to meet assembly size requirements while achieving filtering functions. This greatly improves the safety performance of the connector and effectively prevents dangerous situations such as car fires.

[0030] The connector is used for circuit connection of inverters in new energy vehicles. An on-board inverter (power converter) is a convenient vehicle power converter that can convert DC 12V direct current to AC 220V alternating current, the same as mains power, for use by general electrical appliances. This application discloses a nanocrystalline filter high-voltage connector for circuit connection of inverters in new energy vehicles. The connector includes a copper busbar coated with plastic 10, a copper busbar assembly disposed on the copper busbar coated with plastic 10, two capacitors 30, a magnetic ring assembly 40 disposed on the copper busbar coated with plastic 10, and a connecting copper base 50 disposed on the copper busbar coated with plastic 10. The magnetic ring assembly 40 includes a protective cover 41, a magnetic ring 42, and a protective shell 43. The protective cover 41 and the protective shell 43 are engaged to form an accommodating space, and the magnetic ring 42 is disposed within this accommodating space. This application optimizes the process flow by first placing the magnetic ring inside the protective shell 43 for protection before injection molding, ensuring the performance of the magnetic ring. Please refer to [reference needed]. Figure 3 This application presents an exploded view of the magnetic ring assembly. In this embodiment, the protective shell cover 41 and the protective shell 43 are connected by a snap-fit ​​mechanism as follows: both the protective shell cover 41 and the protective shell 43 are hollow annular grooves. The port of the protective shell cover 41 includes multiple stepped cards 411, and the protective shell 43 has multiple slots 431 corresponding to the positions of the cards 411. During assembly, the cards 411 are inserted into the slots 431 to place the magnetic ring 42 in the middle. In this embodiment, the protective shell cover 41 and the protective shell 43 are made of PPSGF30 material with good strength and temperature resistance. At the same time, the protective shell structure is optimized so that the plastic will not penetrate the magnetic ring 42 during the injection molding process.

[0031] Please refer to Figure 4 This application presents a schematic diagram of a copper busbar assembly and a connecting copper base. The copper busbar assembly includes a positively charged copper busbar 21, a negatively charged copper busbar 22, a positively charged connecting base 211, and a negatively charged connecting base 221. The positively charged copper busbar 21 and the positively charged connecting base 211 are integrally formed, and similarly, the negatively charged copper busbar 22 and the negatively charged connecting base 221 are integrally formed. Both the positively charged copper busbar 21 and the negatively charged copper busbar 22 are elongated plates and include a plate perpendicular to the elongated plate at one end. During assembly, the positively charged connecting base 211 and the negatively charged connecting base 221 are respectively connected to one connecting pin of a capacitor 30, and the other connecting pins of the two capacitors 30 are connected to the connecting copper base 50. Figure 2 In this process, the copper busbar coated body 10 is an elongated plastic body, which includes an annular portion 11 and receiving grooves 12 disposed on both sides. The magnetic ring assembly 40 is disposed on the annular portion 11, specifically by injection molding connection. The two capacitors 30 are disposed in the two receiving grooves 12, specifically by close fitting.

[0032] Please refer to Figure 5 This application presents a schematic diagram of a copper base 50. The copper base 50 includes two oppositely oriented connecting pieces 51 and a connecting hole 52. The two connecting pieces 51 and the connecting hole 52 are integrally formed. The other connecting pins of the two capacitors 30 are respectively connected to the two connecting pieces 51. Figure 1 As shown, the two capacitors 30 are disposed on the two sides of the copper busbar plastic-coated body 10, that is, one above the other. Therefore, the two connecting pieces 51 facing opposite directions can easily connect to the corresponding capacitors 30.

[0033] like Figure 1 As shown, the copper busbar encapsulated body 10 is injection-molded to connect the copper busbar assembly, the magnetic ring assembly 40, and the connecting copper base 50. The copper busbar assembly injection molding within the copper busbar encapsulated body 10 exposes only the head, tail, and connecting portions, such as the positive and negative connecting bases 211 and 221 for easy connection. Similarly, the connecting copper base 50 injection molding within the copper busbar encapsulated body 10 exposes only the connecting portions, such as the heads of two oppositely oriented connecting pieces 51 and the through-hole portion of the connecting hole 52 for easy connection. In this embodiment, the copper busbar encapsulated body 10 is made of high-performance engineering plastic, possessing excellent heat resistance, chemical corrosion resistance, mechanical strength, and dimensional stability, and can maintain stable performance in harsh environments such as high temperature and high humidity.

[0034] Please refer to Figure 6 This application presents a schematic diagram of a capacitor. In this embodiment, the capacitor is a 150nF capacitor. Furthermore, the magnetic ring 42 is a nanocrystalline magnetic ring used for filtering. It is made of nanocrystalline material and possesses high saturation magnetic induction, high permeability, low hysteresis loss, and good temperature stability. Its low hysteresis loss and good temperature stability enhance its electromagnetic shielding effect. In this application, the nanocrystalline magnetic ring is first pre-installed in a racetrack-shaped protective shell to increase protection. Then, positive and negative copper busbars are passed through the nanocrystalline magnetic ring, allowing it to be injection molded into a single unit. After assembly, current enters through one terminal of the copper busbar and is transmitted to the other terminal through the copper busbar within the copper busbar's plastic casing, achieving current interaction. When current flows, the nanocrystalline magnetic ring integrated on the connector filters electromagnetic waves, achieving a filtering function.

[0035] It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0036] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] Due to the adoption of the above technical solutions, this utility model has the following advantages and effects:

[0038] First, the product structure of this application is optimized so that its size remains unchanged after integrating the filtering function, while also being able to adapt to assembly requirements.

[0039] Secondly, the process flow of this application is optimized by first placing the nanocrystalline magnetic ring inside a protective shell for protection.

[0040] Then injection molding is performed to ensure the performance of the magnetic ring.

[0041] Of course, any specific embodiment of the present invention may not necessarily have all of the above technical effects at the same time.

[0042] The above-disclosed embodiments are merely preferred embodiments of the present utility model, but are not intended to limit the scope thereof. Any equivalent changes and modifications made by those skilled in the art without departing from the spirit and essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A high-voltage connector for nanocrystalline filtering, used for circuit connection in a new energy vehicle inverter, characterized in that, The connector includes a copper busbar coated with plastic, a copper busbar assembly disposed on the copper busbar coated with plastic, two capacitors, a magnetic ring assembly disposed on the copper busbar coated with plastic, and a connecting copper base disposed on the copper busbar coated with plastic, wherein... The magnetic ring assembly includes a protective shell cover, a magnetic ring, and a protective shell. The protective shell cover and the protective shell are engaged to form an accommodating space, and the magnetic ring is disposed in the accommodating space. The copper busbar assembly includes a positive-charged copper busbar, a negative-charged copper busbar, a positive-charged connector, and a negative-charged connector. The positive-charged connector and the negative-charged connector are respectively connected to one pin of one of the capacitors, and the other pin of the two capacitors are connected to the connector copper base. The copper busbar coated with plastic is an elongated plastic body, which includes an annular portion and receiving grooves disposed on two sides. The magnetic ring assembly is disposed on the annular portion; the two capacitors are disposed in the two receiving grooves.

2. The high-voltage connector for nanocrystalline filtering as described in claim 1, characterized in that, The connecting copper base includes two connecting pieces facing opposite directions and a connecting hole. The two connecting pieces and the connecting hole are integrally formed, and the other connecting pins of the two capacitors are respectively connected to the two connecting pieces.

3. The high-voltage connector for nanocrystalline filtering as described in claim 2, characterized in that, The copper busbar is formed by injection molding and connects the copper busbar assembly, the magnetic ring assembly, and the connecting copper base.

4. The high-voltage connector for nanocrystalline filtering as described in claim 3, characterized in that, The capacitor is a 150nF capacitor.

5. The high-voltage connector for nanocrystalline filtering as described in claim 4, characterized in that, The magnetic ring is a nanocrystalline magnetic ring used for filtering.

Images