US 12,286,082 B2
Wiper arm device and wiper device
Harald Rapp, Buehl (DE); Adam Ugron, Budapest (HU); Andrija Terentic, Belgrad (RS); Denis Parenta, Buehl (DE); Matea Mikulic, Novi Beograd (RS); Najdan Jocic, Pancevo (RS); Nikola Dilparic, Cacak (RS); Raf Greunlinx, Zolder (BE); Sascha Geissler, Lichtenau (DE); Stijn Truyens, Tienen (BE); and Tanja Bosnic, Belgrad (RS)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Dec. 22, 2021, as Appl. No. 17/559,648.
Claims priority of application No. 102020216566.1 (DE), filed on Dec. 23, 2020.
Prior Publication US 2022/0194325 A1, Jun. 23, 2022
Int. Cl. B60S 1/48 (2006.01); B60S 1/34 (2006.01); B60S 1/38 (2006.01); B60S 1/40 (2006.01); B60S 1/52 (2006.01); F16L 53/38 (2018.01)
CPC B60S 1/488 (2013.01) [B60S 1/3415 (2013.01); B60S 1/3862 (2013.01); B60S 1/48 (2013.01); B60S 1/524 (2013.01); F16L 53/38 (2018.01); B60S 1/407 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A wiper arm device having a wiper arm adapter (12a; 12b), having a fluidic coupling element (18a; 18b) for forming a fluidic connection with a wiper blade (62a; 62b), having a wiper arm rod (14a; 14b), having a fluid line (16a, 16a′; 16b, 16b′) for transporting wiper fluid along the wiper arm rod (14a; 14b) to the fluidic coupling element (18a; 18b), and having an electrical fluid heating line (20a, 20a′; 20b) which is arranged in the fluid line (16a, 16a′; 16b, 16b′) for heating the fluid line (16a, 16a′; 16b, 16b′), wherein the electrical fluid heating line (20a, 20a′; 20b) extends through the fluid line (16a, 16a′; 16b, 16b′) and is deflected at the fluidic coupling element (18a; 18b) to form a return through the fluid line (16a, 16a′; 16b, 16b′), wherein the wiper arm device further includes an electrical and fluidic connection element (56a; 56b) configured to connect the electrical fluid heating line (20a, 20a′; 20b) to an electrical supply line and configured to connect the fluid line (16a, 16a′; 16b, 16b′) to a fluidic supply line, wherein the electrical and fluidic connection element (56a; 56b) includes an electrical plug (72a) extending in a first direction, a first connection main port (58a, 58a′) extending in a second, opposite direction and forming a connection with the fluid line (16, 16a; 16b, 16b′), and a second connection main port (59a, 59a′) extending in a third direction that is perpendicular to both the first direction and the second direction and that is configured to form a connection with the fluidic supply line, wherein the electrical and fluidic connection element (56a; 56b) further includes a sealing element (74a; 74b) which separates an electrical connection region (76a; 76b) of the electrical and fluidic connection element (56a; 56b) from a fluidic connection region (78a; 78b) of the electrical and fluidic connection element (56a; 56b), wherein the electrical connection region (76a; 76b) includes the electrical plug (72a), and wherein the fluidic connection region (78a; 78b) includes both the first connection main port (58a, 58a′) and the second connection main port (59a, 59a′), wherein the wiper arm device further includes an electrical wiper blade heating line (52a; 52b) which extends along the wiper arm rod (14a; 14b) outside of the fluid line (16a, 16a′; 16b, 16b′) for supplying the wiper blade (62a; 62b) with electrical energy, wherein the wiper arm device further includes an electrical connection element (54a; 54b) which is configured to connect the electrical wiper blade heating line (52a; 52b) to the electrical supply line, wherein the electrical connection element (54a; 54b) is separate from the electrical and fluidic connection element (56a; 56b), wherein both the electrical connection element (54a; 54b) and the electrical and fluidic connection element (56a; 56b) are located outside of the wiper rod (14a; 14b), such that the wiper arm rod (14a; 14b) is positioned between the wiper arm adapter (12a; 12b) and each of the electrical connection element (54a; 54b) and the electrical and fluidic connection element (56a; 56b), and wherein the the electrical fluid heating blade heating line (52a) is a separate line from the heating line (20a, 20a′: 20b).