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DE-102024210839-A1 - Housing part, housing, component and method for manufacturing a housing part for a housing for an electrical circuit

DE102024210839A1DE 102024210839 A1DE102024210839 A1DE 102024210839A1DE-102024210839-A1

Abstract

A housing part (102) for a housing (100) for an electrical circuit (106) has a receiving element (124) with a slot geometry (128) for receiving a corresponding alignment geometry (120) of a component (108) corresponding to the slot geometry (128).

Inventors

  • Patrick Hohl

Assignees

  • ZF FRIEDRICHSHAFEN AG

Dates

Publication Date
20260513
Application Date
20241112

Claims (15)

  1. Housing part (102) for a housing (100) for an electrical circuit (106), characterized in that the housing part (102) has a receiving element (124) with a slot geometry (128) for receiving a mounting alignment geometry (120) of a component (108) corresponding to the slot geometry (128).
  2. Housing part (102) according to Claim 1 , characterized in that the receiving element (124) is shaped as a dome.
  3. Housing part (102) according to one of the preceding claims, characterized in that the receiving element (124) has a flat surface (240) in which the slot geometry (128) is formed.
  4. Housing part (102) according to one of the preceding claims, characterized in that the housing part (102) with the receiving element (124) and the slot geometry (128) is cast from metal.
  5. Housing part (102) according to one of the preceding claims, characterized in that a slot of the slot geometry (128) has a diameter of less than 2.5 mm and/or a depth of less than 2.5 mm
  6. Housing part (102) according to one of the preceding claims, characterized in that the housing part (102) has a further receiving element (126) with a further slot geometry (130) for receiving a further alignment geometry (122) of the component (108) corresponding to the further slot geometry (130), wherein the receiving element (124) is arranged spaced apart from the further receiving element (126).
  7. Housing part (102) according to Claim 6 , characterized in that the receiving element (124) has a cross slot as the slot geometry (128) and the further receiving element (126) has a longitudinal slot as the further slot geometry (130).
  8. Housing (100), characterized in that the housing (100) has the following features: a housing part (102) according to one of the preceding claims; a further housing part (104), wherein the housing part (102) and the further housing part (104) enclose an interior space; the electrical circuit (106) which is arranged in the interior space; and the component (108) which has the alignment geometry (120) corresponding to the slot geometry (128), wherein the alignment geometry (120) is supported by the slot geometry (128).
  9. Housing (100) according to Claim 8 , characterized in that the component (108) is formed as a busbar with an electrical conductor (250) and an insulating material (252) which at least partially encloses the electrical conductor (250), wherein the alignment geometry (120) is formed from the insulating material (252).
  10. Housing (100) according to Claim 9 , characterized in that the alignment geometry (120) extends beyond one end of the electrical conductor (250).
  11. Component (108) which is formed as a busbar with an electrical conductor (250) and an insulating material (252) which at least partially encloses the electrical conductor (250), characterized in that the component (108) has an alignment geometry (120) and a further alignment geometry (122), wherein the alignment geometry (120) is cross-shaped and wherein the further alignment geometry (122) is rod-shaped and formed from the insulating material (252).
  12. Method for manufacturing a housing part (102) for a housing (100) for an electrical circuit (106), characterized in that the method comprises the following steps: casting (601) the housing part (102) from metal, wherein the housing part (102) is cast with a receiving element (124) having a slot geometry (128) for receiving a corresponding alignment geometry (120) of a component (108) corresponding to the slot geometry (128); and milling (603) the slot geometry (128) to clean the slot geometry (128).
  13. Power converter, in particular inverter (706), with a housing part (102), characterized in that the housing part (102) is designed according to one of the Claims 1 until 7 is trained.
  14. Electric axle drive for a motor vehicle (700) with at least one electric machine (702), a transmission device (708) and a power converter, characterized in that the power converter according to Claim 13 is trained.
  15. Motor vehicle (700), comprising an electric axle drive according to Claim 14 and/or a power converter Claim 13 and/or a housing part (102) according to one of the Claims 1 until 7 and/or a housing (100) according to one of the Claims 8 until 10 .

Description

The present invention relates to a housing part, a housing, a component, for example a busbar, and to a method for manufacturing a housing part for a housing for an electrical circuit, for example an inverter. Against this background, the present invention provides an improved housing part, an improved housing, an improved component, and an improved method for manufacturing a housing part for a housing for an electrical circuit according to the main claims. Advantageous embodiments are described in the dependent claims and the following description. By designing a housing part with a slot geometry to accommodate an alignment geometry of a component corresponding to the slot geometry, the component can be easily aligned and held in place relative to the housing part. A housing part for an electrical circuit has a receiving element with a slot geometry for receiving a component with an alignment geometry corresponding to the slot geometry. The electrical circuit can be power electronics for an inverter. The housing can enclose the electrical circuit and protect it from environmental influences. The housing component can be a housing half that can be joined with another housing half to form the housing. The receiving element can have a surface in which the slot geometry is formed. The slot geometry can have at least one straight or at least one curved slot. The slot geometry can be formed as a recess. When the component's alignment geometry is inserted into the slot geometry, the component can be held in place by the receiving element. The component can be rod-shaped. The component can form an electrical conductor and, for example, be designed as a busbar. The component can be used for electrical contacting the electrical circuit. For example, the alignment geometry can be used to position components in an inverter. The component does not necessarily have to contain an electrical conductor but can also consist purely of an electrically conductive or electrically insulating material, e.g., plastic or aluminum. For example, the component could be a DC link, a base plate, a printed circuit board, an EMC filter, a carrier geometry, or a hold-down device. The receiving element can be raised above its immediate surroundings. For example, the receiving element can be shaped as a dome or a pedestal. This can facilitate the insertion of the component's alignment geometry into the slot geometry. The receiving element can have a flat surface in which the slot geometry is formed. For example, the alignment geometry of the component, which is received by the slot geometry, can be flush with the flat surface. This can facilitate fixing the alignment geometry to the receiving element, for example by attaching a fixing element that also has a flat surface. The housing part can be cast with the receiving element and slot geometry in metal. For example, the housing part can be cast from aluminum. By casting the receiving element with the slot geometry already incorporated, no further manufacturing process for forming the slot geometry is required. A slot in the slot geometry can have a diameter of less than 3 mm, less than 2.5 mm, or less than 2 mm. For example, at least one slot in the slot geometry can have a diameter of less than 2.5 mm and more than 1.5 mm, for example, a diameter of 2 mm. Additionally or alternatively, at least one slot can have a depth of less than 3 mm, less than 2.5 mm, or less than 1 mm, and/or, for example, a depth of more than 0.5 mm or more than 1 mm. Slots with such dimensions can be advantageously produced with high accuracy by a casting process. The alignment geometry can have dimensions that allow for precise insertion into the slot geometry. The housing component can have an additional receiving element with a further slot geometry for supporting a further alignment geometry of the component that corresponds to this additional slot geometry. The receiving element can be arranged at a distance from the other receiving element. For example, a recess can be arranged between the two receiving elements, which the component can span. For example, the receiving element can have a cross slot as its slot geometry. Additionally or alternatively, the receiving element can have a longitudinal slot as its slot geometry. The longitudinal slot enables the functionality of a floating bearing. The cross slot enables the functionality of a fixed bearing. A corresponding housing comprises an embodiment of said housing part and a further housing part, wherein the housing part and the further housing part enclose an interior space. The housing further comprises an electrical circuit arranged in the interior space and the component having the alignment geometry corresponding to the slot geometry, wherein the alignment geometry is supported by the slot geometry. The component can be designed as a busbar with an electrical conductor and an insulating material that at least partially encloses the conductor. The alignme