Device having an electro-ceramic component

Patent metadata

Field	Value
Publication number	US-12102009-B2
Application number	US-202017112402-A
Country	US
Kind code	B2
Filing date	Dec 4, 2020
Priority date	Jun 4, 2018
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

A device ( 1 ) comprising an electro-ceramic component ( 2 ) which has a first electrical contact ( 3 A), provided on a first side face ( 2 A) of the electro-ceramic component ( 2 ) in the excitation zone ( 11 ), and a second electrical contact ( 3 B) provided on a second side face ( 2 B) of the electro-ceramic component ( 2 ). A sealing compound ( 20 ) is placed around the electro-ceramic component ( 2 ) so that the first electrical contact ( 3 A) and the second electrical contact ( 3 B) are covered by the sealing compound ( 20 ) and a free end ( 26 ) of a section ( 24 ) of the high-voltage zone ( 12 ) of the electro-ceramic component ( 2 ) projects beyond a free end ( 22 ) of the sealing compound ( 20 ).

First claim

What is claimed is:

1. A device with an electro-ceramic component, comprising:
a first electrical contact provided on a first side face of the electroceramic component;
a second electrical contact provided on a second side face of the electro-ceramic component, wherein a sealing compound is placed around the electro-ceramic component so that the first electrical contact and the second electrical contact are covered by the sealing compound and a free three-dimensional end of a section of the electro-ceramic component projects beyond a free end of the sealing compound; and,
a housing, wherein the electroceramic component together with the sealing compound is embedded in the housing in such a way that at least the free three-dimensional end of the electroceramic component projects beyond the housing.

2. The device according to claim 1 wherein the electro-ceramic component is a piezoelectric component.

3. The device according to claim 2 wherein the piezoelectric component is a piezoelectric transformer which defines an excitation zone and a high-voltage zone, the first electrical contact and the second electrical contact are provided in the excitation zone and wherein the free three-dimensional end of the section of the high-voltage zone projects beyond the piezoelectric transformer.

4. The device according to claim 1 wherein the electro-ceramic component is a ceramic capacitor.

5. The device according to claim 1 wherein at least the area of the first electrical contact and the second electrical contact of the electro-ceramic component are completely surrounded by the sealing compound.

6. The device according to claim 1 wherein the housing is formed from a metal or a ceramic.

7. The device according to claim 1 , comprising at least one fastening element which is attached to the housing.

8. The device according to claim 1 , comprising a heat sink which is in thermally conductive contact with the sealing compound.

9. The device according to claim 1 , comprising a driver module which, together with a first electrical connection to the first electrical contact and a second electrical connection to the second electrical contact is embedded in the sealing compound.

10. The device according to claim 1 wherein the sealing compound is an electrically insulating and permanently elastic material.

11. The device according to claim 10 wherein the electrically insulating and permanently elastic material is a silicone gel.

12. The device according to claim 3 wherein a gas discharge can be generated at the free three-dimensional end of the electro-ceramic component.

13. The device according to claim 3 wherein an electrical load is connected to the free three-dimensional end of the electro-ceramic component.

14. The device according to claim 13 wherein the section of the high-voltage zone of the electro-ceramic component is surrounded by a dielectric layer.

15. The device according to claim 4 wherein at least one further electronic component is connected to the free three-dimensional end of the ceramic capacitor.

16. A device with an electro-ceramic component, comprising:
a first electrical contact provided on a first side face of the electroceramic component; and,
a second electrical contact provided on a second side face of the electro-ceramic component, wherein a sealing compound is placed around the electro-ceramic component so that the first electrical contact and the second electrical contact are covered by the sealing compound and a free three-dimensional end of a section of the electro-ceramic component projects beyond a free end of the sealing compound,
wherein the electro-ceramic component is a piezoelectric component, the piezoelectric component is a piezoelectric transformer which defines an excitation zone and a high-voltage zone, the first electrical contact and the second electrical contact are provided in the excitation zone and wherein the free three-dimensional end of the section of the high-voltage zone projects beyond the piezoelectric transformer.

17. A device with an electro-ceramic component, comprising:
a first electrical contact provided on a first side face of the electroceramic component;
a second electrical contact provided on a second side face of the electro-ceramic component, wherein a sealing compound is placed around the electro-ceramic component so that the first electrical contact and the second electrical contact are covered by the sealing compound and a free three-dimensional end of a section of the electro-ceramic component projects beyond a free end of the sealing compound; and,
a heat sink which is in thermally conductive contact with the sealing compound.

18. A device with an electro-ceramic component, comprising:
a first electrical contact provided on a first side face of the electroceramic component;
a second electrical contact provided on a second side face of the electro-ceramic component, wherein a sealing compound is placed around the electro-ceramic component so that the first electrical contact and the second electrical contact are covered by the sealing compound and a free three-dimensional end of a section of the electro-ceramic component projects beyond a free end of the sealing compound; and,
a driver module which, together with a first electrical connection to the first electrical contact and a second electrical connection to the second electrical contact is embedded in the sealing compound.

Assignees

• Relyon Plasma Gmbh
• Tdk Electronics Ag

Inventors

• Nettesheim Stefan
• Forster Klaus
• Puff Markus
• Pichler Johann

Classifications

• H10N30/40

  with electrical input and electrical output, e.g. functioning as transformers · CPC title

• H01G4/40

  Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations · CPC title

• H01G4/224

  Housing; Encapsulation · CPC title

• H01G4/12

  Ceramic dielectrics {(H01G4/085 takes precedence)} · CPC title

• H10N30/883 Primary

  Additional insulation means preventing electrical, physical or chemical damage, e.g. protective coatings · CPC title