The utility model discloses a high-performance vehicle electric horn with EMC protection. A common automobile whistling electric horn is short in service life and low in EMC protection, and great influences are caused to use of customers. The switch circuit is formed by connecting a coil (4) and a switch (5) in series, the protection circuit is connected with the switch circuit in parallel, and the two ends of the coil are connected with a protection capacitor (3) in parallel; the protection circuit comprises a protection capacitor (2) and a BDL filter (1), and the protection capacitor is connected with the BDL filter in parallel. The invention is used for the high-performance vehicle electric horn with EMC protection.
带EMC防护的高性能车用电喇叭。普通汽车鸣笛电喇叭使用寿命低、EMC防护低,对顾客使用造成巨大影响。本发明组成包括:由线圈(4)和开关(5)串联组成的开关电路和防护电路,所述的防护电路与所述的开关电路并联,所述的线圈的两端与保护电容(3)并联;所述的防护电路包括防护电容(2)和BDL滤波器(1),所述的防护电容与所述的BDL滤波器并联。本发明用于带EMC防护的高性能车用电喇叭。
High-performance vehicle electric horn with EMC protection
带EMC防护的高性能车用电喇叭
2021-01-08
Patent
Electronic Resource
Chinese
IPC: | H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |