Ultrasound welding device and method for welding electrical conductors
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B23K-001/06
H01R-043/02
B23K-020/10
H01R-004/02
B06B-003/00
B23K-020/00
출원번호
US-0441899
(2013-12-03)
등록번호
US-9496670
(2016-11-15)
우선권정보
DE-10 2012 111 734 (2012-12-03)
국제출원번호
PCT/EP2013/075295
(2013-12-03)
국제공개번호
WO2014/086733
(2014-06-12)
발명자
/ 주소
Wagner, Peter
Stroh, Dieter
Koc, Sinan
출원인 / 주소
SCHUNK SONOSYSTEMS GMBH
대리인 / 주소
Ladas & Parry LLP
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
The invention relates to an ultrasound welding device for welding electrical conductors to produce a node between the conductors, comprising a compression space for receiving the conductors, which is delimited peripherally by two working surfaces delimiting the compression space on opposing sides an
The invention relates to an ultrasound welding device for welding electrical conductors to produce a node between the conductors, comprising a compression space for receiving the conductors, which is delimited peripherally by two working surfaces delimiting the compression space on opposing sides and two lateral delimitation surfaces running transversely to the working surfaces, and the remaining sides are open. One of the working surfaces is a portion of a sonotrode, excitable in ultrasound oscillation, for the ultrasound welding device and the other working surface is a portion of a counterelectrode and at least the working surfaces are structured.
대표청구항▼
1. An ultrasonic welding device for welding an electrical conductor, the device comprising: a compression space having a longitudinal axis and being configured to receive the electrical conductor;wherein the compression space is delimited longitudinally by opposing first and second working surfaces;
1. An ultrasonic welding device for welding an electrical conductor, the device comprising: a compression space having a longitudinal axis and being configured to receive the electrical conductor;wherein the compression space is delimited longitudinally by opposing first and second working surfaces;wherein the compression space is delimited laterally by first and second lateral surfaces disposed transversely to the first and second working surfaces;wherein a side of the compression space is open;wherein the first working surface is a section of a counter electrode;wherein the second working surface is a section of a sonotrode of the ultrasonic welding device;wherein the first working surface comprises alternating elevations and recesses;wherein the second working surface comprises alternating elevations and recesses;wherein the elevations of the first working surface oppose the elevations of the second working surface;wherein the recesses of the first working surface oppose the recesses of the second working surface;wherein an edge area of the first working surface comprises a projection extending towards the second working surface, said projection running transversely to the longitudinal axis of the compression space; andwherein an edge area of the second working surface comprises a notch, said notch being open in a direction of the first working surface, in an area opposing the projection. 2. The device according to claim 1, wherein the notch comprises an edge running transversely to the longitudinal axis of the compression space; and wherein the edge acts as a protection against an axial shifting of the conductors resting on the edge. 3. The device according to claim 2, wherein the edge acts as a wall protection. 4. The device according to claim 1, wherein the notch has, in cross section, a geometry of a member selected from the group consisting of a U-shape, a semicircular shape, and a V-shape. 5. The device according to claim 1, wherein the edge area of the second working surface comprises two notches. 6. The device according to claim 1, wherein a width of the projection is greater than a width of the notch, when viewed in the longitudinal axial direction of the compression space. 7. The device according to claim 1, wherein the notch runs along a central area of the projection when the conductors are welded. 8. The device according to claim 1, further comprising a slide associated with the first working surface, the slide being adjustable parallel to the second working surface;wherein the slide is associated with a carrier that is adjustable vertically with respect to the second working surface;wherein the slide, indirectly or directly, laterally limits the compression space;wherein an elevation in a central area of the first working surface projects above other elevations that are present; andwherein the elevation projecting above other elevations, and starting from the edge area of the first working surface, is shortened over an area B with a length L, so that a crown area of the area B runs in a plane, or is offset from the plane, that is tensioned by other elevations or, where no other elevations are present, by the working surface. 9. The device according to claim 8, wherein 0.5 mm≦L≦1.5 mm. 10. The device according to claim 8, wherein L is about 1 mm. 11. A method for ultrasonic welding of an electrical conductor, the method comprising: providing an ultrasonic welding device having a compression space that can be adjusted in height and in width, the compression space having a longitudinal axis and being configured to receive the electrical conductor;wherein the compression space is delimited longitudinally by opposing first and second working surfaces;wherein the compression space is delimited laterally by first and second lateral surfaces disposed transversely to the first and second working surfaces;wherein a side of the compression space is open;wherein the first working surface is a section of a counter electrode;wherein the second working surface is a section of a sonotrode of the ultrasonic welding device;wherein the first working surface comprises alternating elevations and recesses;wherein the second working surface comprises alternating elevations and recesses;wherein the elevations of the first working surface oppose the elevations of the second working surface;wherein the recesses of the first working surface oppose the recesses of the second working surface;wherein an edge area of the first working surface comprises a projection extending towards the second working surface, said projection running transversely to the longitudinal axis of the compression space;wherein an edge area of the second working surface comprises a notch, said notch being open in a direction of the first working surface, in an area opposing the projection;welding the conductor resting opposite the projection on the first working surface less strongly than in the central area of the first working surface;wherein the notch comprises an edge running transversely to the longitudinal axis of the compression space; andinhibiting axial shifting of the conductor resting on the edge of the notch. 12. A method for ultrasonic welding of an electrical conductor, the method comprising: providing an ultrasonic welding device having:a compression space that can be adjusted in height and in width, the compression space having a longitudinal axis and being configured to receive the electrical conductor;wherein the compression space is delimited longitudinally by opposing first and second working surfaces;wherein the compression space is delimited laterally by first and second lateral surfaces disposed transversely to the first and second working surfaces;wherein a side of the compression space is open;wherein the first working surface is a section of a counter electrode;wherein the second working surface is a section of a sonotrode of the ultrasonic welding device;wherein the first working surface comprises alternating elevations and recesses;wherein the second working surface comprises alternating elevations and recesses;wherein the elevations of the first working surface oppose the elevations of the second working surface;wherein the recesses of the first working surface oppose the recesses of the second working surface;wherein an edge area of the first working surface comprises a projection extending towards the second working surface, said projection running transversely to the longitudinal axis of the compression space;wherein an edge area of the second working surface comprises a notch, said notch being open in a direction of the first working surface, in an area opposing the projection;a slide associated with the first working surface, the slide being adjustable parallel to the second working surface;wherein the slide is associated with a carrier that is adjustable vertically with respect to the second working surface;wherein the slide, indirectly or directly, laterally limits the compression space;wherein an elevation in a central area of the first working surface projects above other elevations that are present;wherein the elevation projecting above other elevations, and starting from the edge area of the first working surface, is shortened over an area B with a length L, so that a crown area of the area B runs in a plane, or is offset from the plane, that is tensioned by other elevations or, where no other elevations are present, by the working surface;adjusting a maximum width of the compression space to the length L; oradjusting a width of the compression space to a width that is wider than the length L.
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