Contact mat for an actuator, and associated production method
View Patent ↗A contact mat ( 9 ) for electrically contacting an actuator, particularly a piezo actuator for an injector of an injection system has several electrically conductive wires ( 5 ) that are placed next to each other and several mechanical transversal connections located between the individual wires ( 5 ). The transversal connections consist of one respective terminal post ( 3, 4, 20 - 22 ) of the actuator.
1. A contact mat for electrical contacting of an actuator comprising:
a plurality of electrically-conductive wires arranged next to one another;
a flexible material connecting the plurality of electrically-conductive wires to each other; and
a plurality of mechanical connections between the individual wires and at least one terminal post of the actuator running transverse to the wires.
2. A contact mat in accordance with claim 1 , wherein the terminal posts comprise wire guides to mechanically guide the wires.
3. A contact mat in accordance with claim 2 , wherein the wire guides consist of a flattening of the terminal posts.
4. A contact mat in accordance with claim 2 , wherein the wire guides consist of nicks in the terminal posts, with the nicks running in the longitudinal direction of the wires.
5. A contact mat in accordance with claim 1 , wherein the terminal posts are essentially arranged equidistantly in the longitudinal direction of the wires.
6. A contact mat in accordance with claim 1 , wherein the terminal posts are arranged in the longitudinal direction of the wires at a distance which is greater than the length of the wires for a complete contacted actuator.
7. A contact mat in accordance with claim 1 , wherein the terminal posts are connected to the wires by a solder connection.
8. A contact mat in accordance with claim 1 , wherein the flexible material is elastic and/or vibration-damping.
9. A contact mat in accordance with claim 1 , wherein the individual wires are encapsulated in the flexible material.
10. A contact mat in accordance with claim 1 , wherein the individual wires are molded within or extrusion coated with the flexible material.
11. An actuator with a contact mat in accordance with claim 1 , for electrical connection of a piezo stack with two terminal posts.
12. An injector for an injection system with an actuator in accordance with claim 11 .