Composite element

Patent metadata

Field	Value
Publication number	US-12426185-B2
Application number	US-202318113929-A
Country	US
Kind code	B2
Filing date	Feb 24, 2023
Priority date	Aug 24, 2020
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A composite element includes: an outer holder; and an inner component which is held in the outer holder under a compressive stress, the outer holder and the inner component adjoining one another along a contour line which is closed, the contour line including two linear portions and two connecting portions, the two linear portions opposing one another and extending in a straight line, the two connecting portions connecting the two linear portions to form the contour line as closed, at least one of the two connecting portions having an arcuately extending curved region.

First claim

What is claimed is:

1. A composite element, comprising:
an outer holder; and
an inner component which is held in the outer holder under a compressive stress, the outer holder and the inner component adjoining one another along a contour line which is closed, the contour line including two linear portions and two connecting portions, the two linear portions opposing one another and extending in a straight line, the two connecting portions connecting the two linear portions to form the contour line as closed, at least one of the two connecting portions having an arcuately extending curved region, wherein the outer holder comprises or consists of a first material which has a first coefficient of thermal expansion, the inner component comprises or consists of a second material which has a second coefficient of thermal expansion, and the first coefficient of thermal expansion is greater than the second coefficient of thermal expansion, and wherein a contact pressure along the contour line is positive at all points, and a stress on the inner component along the contour line is less than 300 MPa.

2. The composite element according to claim 1 , wherein the arcuately extending curved region is a first arcuately extending curved region, the at least one of the two connecting portions including the first arcuately extending curved region and a second arcuately extending curved region, the first arcuately extending curved region directly adjoining one of the two linear portions, the second arcuately extending curved region directly adjoining the other of the two linear portions.

3. The composite element according to claim 1 , wherein a length of the arcuately extending curved region is at least 5% of a length of the at least one of the two connecting portions.

4. The composite element according to claim 1 , wherein the at least one of the two connecting portions is formed as the arcuately extending curved region, which is a continuously arcuately extending curved region.

5. The composite element according to claim 1 , wherein a smallest possible enveloping rectangle which surrounds the contour line comprises a first side length and a second side length, the first side length extending parallel to at least one of the two opposing linear portions, the second side length extending orthogonal to the first side length.

6. The composite element according to claim 1 , wherein at least one of:
(a) the arcuately extending curved region of the at least one of the two connecting portions merges into at least one of the two linear portions smoothly; and
(b) the contour line extends smoothly at all points.

7. The composite element according to claim 1 , wherein at least one of:
(a) a contact pressure along the contour line is greater than 100 MPa at at least one point;
(b) a stress on the outer holder along the contour line is less than 300 MPa; and
(c) a deformation of the outer holder is less than 0.03 mm/mm.

8. A composite element, comprising:
an outer holder;
an inner component which is held in the outer holder under a compressive stress, the outer holder and the inner component adjoining one another along a contour line which is closed, the contour line including two linear portions and two connecting portions, the two linear portions opposing one another and extending in a straight line, the two connecting portions connecting the two linear portions to form the contour line as closed, at least one of the two connecting portions having an arcuately extending curved region; and
an electrical conductor which extends through the inner component, wherein the contour line is a first contour line, the inner component and the electrical conductor adjoining one another along a second contour line which is closed, wherein the outer holder comprises or consists of a first material which has a first coefficient of thermal expansion, wherein the inner component comprises or consists of a second material which has a second coefficient of thermal expansion, wherein the electrical conductor comprises or consists of a third material which has a third coefficient of thermal expansion, wherein at least one of: (a) the third coefficient of thermal expansion differs from the second coefficient of thermal expansion by less than a factor of 3; and
(b) the third coefficient of thermal expansion differs from the first coefficient of thermal expansion by less than a factor of 3.

9. A composite element, comprising:
an outer holder;
an inner component which is held in the outer holder under a compressive stress, the outer holder and the inner component adjoining one another along a contour line which is closed, the contour line including two linear portions and two connecting portions, the two linear portions opposing one another and extending in a straight line, the two connecting portions connecting the two linear portions to form the contour line as closed, at least one of the two connecting portions having an arcuately extending curved region; and
an electrical conductor which extends through the inner component, wherein the contour line is a first contour line, the inner component and the electrical conductor adjoining one another along a second contour line which is closed,
wherein the contour line along which the outer holder and the inner component adjoin one another defines a smallest possible first enveloping rectangle which surrounds the contour line,
wherein the second contour line along which the inner component and the electrical conductor adjoin one another defines a smallest possible second enveloping rectangle which surrounds the second contour line,
wherein the smallest possible first enveloping rectangle includes a longer side length and a shorter side length, and the smallest possible second enveloping rectangle includes a longer side length and a shorter side length, and
wherein the longer side length of the smallest possible first enveloping rectangle and the longer side length of smallest possible second enveloping rectangle extend parallel to one another or extend at an angle to one another which is smaller than 20 degrees.

10. The composite element according to claim 9 , wherein the longer side length of the smallest possible first enveloping rectangle is greater than the shorter side length of the smallest possible first enveloping rectangle by a first factor, and
wherein the longer side length of the smallest possible second enveloping rectangle is greater than the shorter side length of the smallest possible second enveloping rectangle by a second factor, and
wherein the second factor differs from the first factor by less than 400%.

11. The composite element according to claim 8 , wherein the second contour line along which the inner component and the electrical conductor adjoin one another comprises two linear portions and two connecting portions, the two linear portions opposing one another and extending in a straight line, the two connecting portions connecting the two linear portions to form the second contour line as closed, at least one of the two connecting portions of the second contour line having an arcuately extending curved region.

12. The composite element according to claim 11 , wherein, in respect of the second contour line along which the inner component and the electrical conductor adjoin one another, the arcuately extending curved region of the second contour line is a first arcuately extending curved region of the second contour line, the at least one of the two connecting portions of the second contour line including the first arcuately extending curved region of the second contour line and a second arcuately extending curved region of the second contour line, the

Assignees

• Schott Ag

Inventors

• Hettler Robert
• Chai Wee Kiat
• Graf Rainer
• Haslbeck Helena

Classifications

• H05K5/04

  Metal casings · CPC title

• H05K5/03 Primary

  Covers · CPC title

• C03C27/00 Primary

  Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing (C03C17/00 takes precedence; layered structures comprising at least one glass sheet B32B17/00; wired glass C03B; joining glass to ceramics C04) · CPC title