1 research outputs found
Π’ΠΎΠΊΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΡΡΠΈΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ Π΄Π»Ρ ΡΠΎΠ΅Π΄ΠΈΠ½ΠΈΡΠ΅Π»ΡΠ½ΡΡ ΡΠΈΠ½ ΠΌΠ½ΠΎΠ³ΠΎΡΠ»Π΅ΠΌΠ΅Π½ΡΠ½ΡΡ Π°ΠΊΠΊΡΠΌΡΠ»ΡΡΠΎΡΠ½ΡΡ ΡΡΠ³ΠΎΠ²ΡΡ Π±Π°ΡΠ°ΡΠ΅ΠΉ
The article deals with the choice of materials for connecting tires of traction batteries (TB). The optimal parameters of their spot welding with batteries are experimentally established (the ο¬rst pulse with a current of 7 kA duration of 1 ms, the break between the pulses of 1 ms, the second pulse with a current of 7 kA duration of 2 ms). When operating the traction battery on electric vehicles, the resistance of the connecting tires should not lead to heating of the batteries in order to avoid overheating above 60 Β°C. In most modern TB, consisting of Li-ion elements, a nickel tape is used for the connection. To ensure the weldability of materials (copperβnickel or nickelβnickel), it is important that the operating temperature is reached at a short-term current pulse in the welding zone. One of the solutions to this problem is the application of a metal coating. Experiments were conducted on the weldability of various materials, including those with applied coatings. The best results in weldability were shown by tires made of tinned copper, which was welded to nickel plates (emitting the battery body). Tear tests of the welded samples were carried out. The tensile strength of the original copper tires was 340β450 MPa. When welding copperβnickel and copper(tinned) β nickel plates, the strength limit values reach 70 % of the strength of the original copper plate. On the basis of the obtained experimental data, a pilot batch of battery TB was manufactured, which successfully passed tests for compliance with the technical requirements for the strength and the value of the transition resistances of the welded joints of connecting buses with batteries.Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π²ΠΎΠΏΡΠΎΡΡ Π²ΡΠ±ΠΎΡΠ° ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π΄Π»Ρ ΡΠΎΠ΅Π΄ΠΈΠ½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΡΠΈΠ½ ΡΡΠ³ΠΎΠ²ΡΡ
Π±Π°ΡΠ°ΡΠ΅ΠΉ (Π’Π). ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ ΠΈΡ
ΡΠΎΡΠ΅ΡΠ½ΠΎΠΉ ΡΠ²Π°ΡΠΊΠΈ Ρ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΠΌΠΈ ΠΏΠΈΡΠ°Π½ΠΈΡ: ΠΏΠ΅ΡΠ²ΡΠΉ ΠΈΠΌΠΏΡΠ»ΡΡ Ρ ΡΠΈΠ»ΠΎΠΉ ΡΠΎΠΊΠ° 7 ΠΊΠ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ 1 ΠΌΡ, ΠΏΠ΅ΡΠ΅ΡΡΠ² ΠΌΠ΅ΠΆΠ΄Ρ ΠΈΠΌΠΏΡΠ»ΡΡΠ°ΠΌΠΈ 1 ΠΌΡ, Π²ΡΠΎΡΠΎΠΉ ΠΈΠΌΠΏΡΠ»ΡΡ Ρ ΡΠΈΠ»ΠΎΠΉ ΡΠΎΠΊΠ° 7 ΠΊΠ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ 2 ΠΌΡ. ΠΡΠΈ ΡΠ°Π±ΠΎΡΠ΅ Π’Π Π½Π° ΡΠ»Π΅ΠΊΡΡΠΎΡΡΠ°Π½ΡΠΏΠΎΡΡΠ΅ ΡΠΎΠΏΡΠΎΡΠΈΠ²Π»Π΅Π½ΠΈΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΡΠΈΠ½ Π½Π΅ Π΄ΠΎΠ»ΠΆΠ½ΠΎ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡ ΠΊ Π½Π°Π³ΡΠ΅Π²Ρ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΈΡΠ°Π½ΠΈΡ Π²ΠΎ ΠΈΠ·Π±Π΅ΠΆΠ°Π½ΠΈΠ΅ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π° Π²ΡΡΠ΅ 60 Β°Π‘. Π Π±ΠΎΠ»ΡΡΠΈΠ½ΡΡΠ²Π΅ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
Π’Π, ΡΠΎΡΡΠΎΡΡΠΈΡ
ΠΈΠ· Π»ΠΈΡΠΈΠΉ-ΠΈΠΎΠ½Π½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ², Π΄Π»Ρ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ Π½ΠΈΠΊΠ΅Π»Π΅Π²Π°Ρ Π»Π΅Π½ΡΠ°. ΠΠ»Ρ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ²Π°ΡΠΈΠ²Π°Π΅ΠΌΠΎΡΡΠΈ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² (ΠΌΠ΅Π΄ΡβΠ½ΠΈΠΊΠ΅Π»Ρ ΠΈΠ»ΠΈ Π½ΠΈΠΊΠ΅Π»ΡβΠ½ΠΈΠΊΠ΅Π»Ρ) Π²Π°ΠΆΠ½ΠΎ, ΡΡΠΎΠ±Ρ ΠΏΡΠΈ ΠΊΡΠ°ΡΠΊΠΎΡΡΠΎΡΠ½ΠΎΠΌ ΠΈΠΌΠΏΡΠ»ΡΡΠ΅ ΡΠΎΠΊΠ° Π² Π·ΠΎΠ½Π΅ ΡΠ²Π°ΡΠΊΠΈ Π±ΡΠ»Π° Π΄ΠΎΡΡΠΈΠ³Π½ΡΡΠ° ΡΠ°Π±ΠΎΡΠ°Ρ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°. ΠΠ΄ΠΈΠ½ ΠΈΠ· Π²Π°ΡΠΈΠ°Π½ΡΠΎΠ² ΡΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π°Π½Π½ΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ β ΡΡΠΎ Π½Π°Π½Π΅ΡΠ΅Π½ΠΈΠ΅ ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΠΊΡΡΡΠΈΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Ρ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΡ ΠΏΠΎ ΡΠ²Π°ΡΠΈΠ²Π°Π΅ΠΌΠΎΡΡΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ Ρ Π½Π°Π½Π΅ΡΠ΅Π½Π½ΡΠΌΠΈ ΠΏΠΎΠΊΡΡΡΠΈΡΠΌΠΈ. ΠΠ°ΠΈΠ»ΡΡΡΠΈΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎ ΡΠ²Π°ΡΠΈΠ²Π°Π΅ΠΌΠΎΡΡΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π»Π° ΡΠΈΠ½Π° ΠΈΠ· Π»ΡΠΆΠ΅Π½ΠΎΠΉ ΠΌΠ΅Π΄ΠΈ, ΠΊΠΎΡΠΎΡΡΡ ΠΏΡΠΈΠ²Π°ΡΠΈΠ²Π°Π»ΠΈ ΠΊ Π½ΠΈΠΊΠ΅Π»Π΅Π²ΡΠΌ ΠΏΠ»Π°ΡΡΠΈΠ½Π°ΠΌ, ΡΠΌΠΈΡΠΈΡΡΡΡΠΈΠΌ ΠΊΠΎΡΠΏΡΡ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ° ΠΏΠΈΡΠ°Π½ΠΈΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Ρ ΠΈΡΠΏΡΡΠ°Π½ΠΈΡ Π½Π° ΡΠ°Π·ΡΡΠ² ΡΠ²Π°ΡΠ΅Π½Π½ΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠΎΠ². ΠΡΠ΅Π΄Π΅Π» ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ Π½Π° ΡΠ°Π·ΡΡΠ² ΠΈΡΡ
ΠΎΠ΄Π½ΡΡ
ΡΠΈΠ½ ΠΌΠ΅Π΄ΠΈ ΡΠΎΡΡΠ°Π²ΠΈΠ» 340β450 ΠΠΠ°. ΠΡΠΈ ΡΠ²Π°ΡΠΈΠ²Π°Π½ΠΈΠΈ ΠΏΠ»Π°ΡΡΠΈΠ½ ΠΌΠ΅Π΄ΡβΠ½ΠΈΠΊΠ΅Π»Ρ ΠΈ ΠΌΠ΅Π΄Ρ (Π»ΡΠΆΠ΅Π½Π°Ρ) β Π½ΠΈΠΊΠ΅Π»Ρ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈ ΠΏΡΠ΅Π΄Π΅Π»Π° ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ Π΄ΠΎΡΡΠΈΠ³Π»ΠΈ 70 % ΠΎΡ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠΉ ΠΌΠ΅Π΄Π½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½Ρ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π° ΠΎΠΏΡΡΠ½Π°Ρ ΠΏΠ°ΡΡΠΈΡ Π°ΠΊΠΊΡΠΌΡΠ»ΡΡΠΎΡΠ½ΡΡ
Π’Π, ΠΊΠΎΡΠΎΡΠ°Ρ ΡΡΠΏΠ΅ΡΠ½ΠΎ ΠΏΡΠΎΡΠ»Π° ΠΈΡΠΏΡΡΠ°Π½ΠΈΡ Π½Π° ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΈΠ΅ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡΠΌ ΠΏΠΎ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΈ Π²Π΅Π»ΠΈΡΠΈΠ½Π΅ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π½ΡΡ
ΡΠΎΠΏΡΠΎΡΠΈΠ²Π»Π΅Π½ΠΈΠΉ ΡΠ²Π°ΡΠ½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ ΡΠΎΠ΅Π΄ΠΈΠ½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΡΠΈΠ½ Ρ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΠΌΠΈ ΠΏΠΈΡΠ°Π½ΠΈΡ