Search

CN-122001178-A - Assembly of components of a current transformer, method for producing an assembly and housing part

CN122001178ACN 122001178 ACN122001178 ACN 122001178ACN-122001178-A

Abstract

The invention relates to an assembly (100) for components of a current transformer (300), comprising at least one cooler (10) for cooling the components, at least one capacitor (20) for intermediate energy storage, wherein the at least one cooler (10) and the at least one capacitor (20) are connected by a common casting compound (30), wherein at least the at least one capacitor (20) is completely encapsulated in the common casting compound (30), and to a method for producing an assembly (100) for a current transformer (300) and to a housing part (310) for a current transformer (300).

Inventors

  • STRASSER ROBERT

Assignees

  • 大众汽车股份公司

Dates

Publication Date
20260508
Application Date
20251031
Priority Date
20241104

Claims (10)

  1. 1. An assembly (100) of components for a current converter (300), the assembly comprising the following components: At least one cooler (10) for cooling the component, At least one capacitor (20) for intermediate storage of energy, Wherein the at least one cooler (10) and the at least one capacitor (20) are connected by a common casting compound (30), wherein at least the at least one capacitor (20) is completely encapsulated in the common casting compound (30).
  2. 2. The assembly (100) according to claim 1, characterized in that at least one section of the underside (11) of the at least one cooler (10) is connected to the outer face (21) of the at least one capacitor (20) by the common casting compound (30).
  3. 3. The assembly (100) according to any one of the preceding claims, wherein the at least one cooler (10) has a bulge (12), wherein at least a portion of the bulge (12) is connected to an outer face (21) of the at least one capacitor (20) by the common casting compound (30).
  4. 4. The assembly (100) according to any one of the preceding claims, wherein the assembly (100) further comprises at least one half-bridge (40), wherein the at least one half-bridge (40) is connected to the at least one cooler (10) by means of the common casting compound (30).
  5. 5. The assembly (100) according to any one of the preceding claims, wherein at least one half-bridge (40) and the at least one capacitor (20) are connected by at least one mass (51, 52) for guiding an electric current, wherein the at least one mass (51, 52) is at least partially encapsulated in the common casting compound (30).
  6. 6. The assembly (100) according to any one of the preceding claims, wherein the at least one capacitor (20) and the at least one cooler (10) are at least partially arranged in at least one container (25), wherein the at least one container (25) limits the casting space of the common casting compound (30).
  7. 7. The assembly according to claim 6, characterized in that the at least one container (25) is configured as a housing part (310) for the current converter (300).
  8. 8. A method for manufacturing at least one component (100) for a current converter (300), the method comprising the steps of: -arranging (S1) at least one capacitor (20) arrangement and at least one cooler (10) in the assembly (100), Introducing (S2) a common casting compound (30) into the component (100), -Connecting (S3) the at least one cooler (10) with the at least one capacitor (20) by means of the common casting compound (30).
  9. 9. The method according to claim 8, characterized in that the component (100) is heated to a temperature by introducing the casting compound (30), wherein the temperature is sufficient to connect at least one half-bridge (40) with the at least one cooler (10) in a material-fit.
  10. 10. A housing part (310) for a current converter (300), wherein at least one capacitor (20) is encapsulated in a potting compound (30) in at least one receiving region (210) of the housing part (310).

Description

Assembly of components of a current transformer, method for producing an assembly and housing part Technical Field The invention relates to an assembly of components for a current transformer (Stromwanlder, sometimes referred to as a converter), a method for producing at least one assembly for a current transformer, and a housing part for a current transformer. Background Current converters are used in electric and hybrid vehicles to convert energy stored in a traction battery from direct current to alternating current, for example, for an electric machine. In order to operate the current converter safely and reliably, it is critical that the installed components be protected from damage and work efficiently. The installation space for use should also be used in a space-saving manner. A motor vehicle inverter assembly is known from DE 10 2019 112 010 A1, which is arranged between a battery and an electric machine of the motor vehicle in the direction of the current flow. However, such inverter structure assemblies are complex and costly to manufacture. Furthermore, components in such inverter structure assemblies may be susceptible to damage due to lack of protection during manufacture or maintenance. Disclosure of Invention The technical problem arises of creating an assembly of components for a current transformer, a method for producing at least one assembly for a current transformer, and a housing part for a current transformer, which simplifies the production and protects the components better. The solution to this problem is achieved by the subject matter with the features described below. An assembly of components for a current converter is proposed, the assembly comprising the following components: At least one cooler for cooling the component, At least one capacitor for intermediate storage of energy, Wherein the at least one cooler and the at least one capacitor are connected by a common potting compound, and at least the at least one capacitor is completely potted in the common potting compound. This assembly has a number of technical advantages. On the one hand, the capacitor is completely protected by the common casting compound. On the other hand, the cooler is also protected from environmental influences and damage at least in part by the common casting compound. Furthermore, the common casting material provides a mechanical hold between the components such that the components of the assembly do not move relative to each other, for example, during assembly. This simplifies the production of the component and improves the protection of the components, for example, during assembly of the current transformer. Furthermore, the capacitors are thermally connected particularly well to the cooler by the common casting compound, so that, for example, waste heat of the capacitors can be better dissipated during operation. At the same time, the common casting compound has an electrically insulating effect on the component, which protects against short-circuits, for example. A method for manufacturing at least one component for a current converter is also proposed, the method comprising the steps of: Arranging at least one capacitor and at least one cooler in the assembly, Introducing a common casting compound into the assembly, -Connecting the at least one cooler with the at least one capacitor by means of a common casting compound. The method may be constructed as follows. For example, the capacitor may be arranged in a container. The container may limit the casting space for co-casting. The capacitors can be arranged on the placeholders or spacers, so that the common casting compound can also reach underneath the capacitors. The common casting material may be heated to a temperature so as to liquefy the casting material. The casting compound may be cast into the container, for example, until the capacitor is completely surrounded by the casting compound. The cooler may be at least partially immersed in the injected casting compound. The common castable may be cured by a drying step. The common casting compound can mechanically firmly connect the cooler and the capacitor to each other, for example by solidification. The container may for example be coated so that the container can be removed after the connecting members. Thus, the container is not an essential feature of the assembly. A housing part for a current transformer is also proposed, wherein at least one capacitor is encapsulated in a potting compound in at least one receiving region of the housing part. By means of this housing part, it is no longer necessary to arrange the capacitor in a separate container during manufacture in order to pot the capacitor with the potting compound. Instead, the casting compound can be cast directly into the receiving area. As a result, the container becomes redundant and by omitting the container, a space and weight saving for the current transformer results. The receiving region can be configured, for exampl