Ultrasonic vibration system having an amplitude transformer mounted on the lateral surface

Patent metadata

Field	Value
Publication number	US-11090759-B2
Application number	US-201716325474-A
Country	US
Kind code	B2
Filing date	Aug 29, 2017
Priority date	Sep 2, 2016
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

The present invention relates to an ultrasonic vibration system ( 1 ) comprising a sonotrode which has two sonotrode end faces ( 8, 8 ′) and a circumferential lateral surface that connects said sonotrode end faces ( 8, 8 ′) with each other. The sonotrode has an elongate core element ( 2 ) and at least one wing element ( 3, 4 ), each core element ( 2 ) and wing element ( 3, 4 ) longitudinally extending from the one sonotrode end face ( 8 ) to the other sonotrode end face ( 8 ′). The wing element ( 3, 4 ) has a sealing surface ( 7 ) which is designed to be in contact with a material for the purpose of processing same and which is connected to the core element ( 2 ) via a plurality of longitudinally interspaced connecting portions ( 5, 6 ). The ultrasonic vibration system further comprises a converter ( 9 ) which is optionally connected to the sonotrode via an amplitude transformer ( 11 ). According to the invention, the converter ( 9 ) or the amplitude transformer ( 11 ) is connected to the lateral surface of the sonotrode.

First claim

The invention claimed is:

1. Ultrasonic vibration system ( 1 ) with a sonotrode which has two sonotrode end faces ( 8 , 8 ′) and a circumferential lateral surface that connects the two sonotrode end faces ( 8 , 8 ′) to each other, wherein the sonotrode has an elongate core element ( 2 ) and at least one wing element ( 3 , 4 ), wherein the elongate core element ( 2 ) and the at least one wing element ( 3 , 4 ) each extend from one sonotrode end face ( 8 , 8 ′) to the other sonotrode end face ( 8 , 8 ′) in a longitudinal direction, wherein the at least one wing element ( 3 , 4 ) has a sealing surface ( 7 ) which is provided to come into contact with a material for the processing thereof and is connected to the elongate core element ( 2 ) via a plurality of connecting portions ( 5 , 6 ) spaced apart from each other in the longitudinal direction, and a converter ( 9 ) which is connected to the sonotrode, optionally via an amplitude transformer ( 11 ), characterized in that the converter ( 9 ) or the amplitude transformer ( 11 ) is connected to the lateral surface of the sonotrode and the sonotrode comprises the at least one wing element ( 3 , 4 ) which is connected to the elongate core element ( 2 ) via a plurality of connection portions ( 5 , 6 ) spaced apart from each other in the longitudinal direction of the elongate core element ( 2 ), wherein the at least one wing element ( 3 , 4 ) extends from one sonotrode end face ( 8 , 8 ′) to the other sonotrode end face ( 8 , 8 ′) in a longitudinal direction.

2. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the converter ( 9 ) is connected to the at least one wing element ( 3 , 4 ).

3. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the converter ( 9 ) is connected to the sonotrode in a region which is arranged closer to one sonotrode end face ( 8 ) than to the other sonotrode end face ( 8 ′).

4. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the converter is connected to the sonotrode via an amplitude transformer, the amplitude transformer ( 11 ) having an amplitude transformer core element ( 12 ) and at least one amplitude transformer wing element ( 13 , 14 ), wherein the at least one amplitude transformer wing element ( 13 , 14 ) and amplitude transformer core element ( 12 ) are connected to each other via at least two connecting portions ( 15 ).

5. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the at least one wing element ( 3 , 4 ) and the core element ( 2 ) lie in one plane.

6. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that at least one sonotrode end face ( 8 , 8 ′) has a chamfer, wherein the chamfer is arranged at an edge between the at least one sonotrode end face ( 8 , 8 ′) and the sealing surface ( 7 ).

7. Ultrasonic vibration system ( 1 ) according to claim 1 characterized in that the connecting portions ( 5 , 6 ) are formed between through-holes introduced in the lateral surface.

8. Ultrasonic vibration system ( 1 ) according to claim 7 , characterized in that the through-holes have a width which increases in the direction of the at least one wing element ( 3 , 4 ).

9. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the at least one wing element ( 3 , 4 ) is connected to the core element ( 2 ) via at least 6 and at most 9 connecting portions ( 5 , 6 ).

10. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the at least one wing element has a thickness which is smaller than the thickness of the core element, wherein the thickness of the at least one wing element is less than 75% of the thickness of the core element.

11. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the at least one wing element has a width which is smaller than the width of the core element, wherein the width of the at least one wing element is less than 50% of the width of the core element.

12. Ultrasonic vibration system according to claim 1 , characterized in that the sealing surface is arranged on the lateral surface.

13. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the converter ( 9 ) is connected to the core element ( 2 ).

14. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that amplitude transformer ( 11 ) is connected to the at least one wing element ( 3 , 4 ).

15. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that amplitude transformer ( 11 ) is connected to the core element ( 2 ).

16. Ultrasonic vibration system ( 1 ) according to claim 1 , characterized in that the amplitude transformer ( 11 ) is connected to the sonotrode in a region which is arranged closer to one sonotrode end face ( 8 ) than to the other sonotrode end face ( 8 ′).

17. Ultrasonic vibration system ( 1 ) according to claim 7 , surface wherein the through-holes are elongate and the longitudinal direction thereof extends from the core element ( 2 ) to the at least one wing element ( 3 , 4 ).

18. Ultrasonic vibration system ( 1 ) according to claim 11 , of the core element, wherein the width of the at least one wing element ( 3 , 4 ) is less than 35% of the width of the core element.

19. Ultrasonic vibration system ( 1 ) according to claim 4 wherein the amplitude transformer core element ( 12 ) is connected to a converter ( 9 ).

20. Ultrasonic vibration system ( 1 ) including:
a sonotrode having two sonotrode end faces ( 8 , 8 ′) and a circumferential lateral surface that connects the two sonotrode end faces ( 8 , 8 ′) to each other, wherein the sonotrode has an elongate core element ( 2 ) and two wing elements ( 3 , 4 ), wherein the elongate core element ( 2 ) and the two wing elements ( 3 , 4 ) each extend from one sonotrode end face ( 8 , 8 ′) to the other sonotrode end face ( 8 , 8 ′) in a longitudinal direction, wherein at least one of the two wing elements ( 3 , 4 ) has a sealing surface ( 7 ) which is provided to come into contact with a material for the processing thereof and is connected to the elongate core element ( 2 ) via a plurality of connecting portions ( 5 , 6 ) spaced apart from each other in the longitudinal direction, and a converter ( 9 ) which is connected to the sonotrode, optionally via an amplitude transformer ( 11 ), wherein the converter ( 9 ) or the amplitude transformer ( 11 ) is connected to the lateral surface of the sonotrode.

Assignees

• Herrmann Ultraschalltechnik Gmbh & Co Kg

Inventors

• Vogler Ulrich

Classifications

• B06B3/00

  Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency · CPC title

• B26D7/086

  by vibrating, e.g. ultrasonically · CPC title

• B06B1/0207

  Driving circuits (specially adapted for particular applications, see the relevant subclass, e.g. G01; circuits for steering transducer arrays G10K11/34; basic circuits H03) · CPC title

• B23K20/106 Primary

  Features related to sonotrodes · CPC title

• B06B1/06

  operating with piezoelectric effect or with electrostriction (piezoelectric or electrostrictive devices per se H10N30/00) · CPC title