Electrically actuatable operating unit, brake booster and motor vehicle brake system

An electrically actuatable operating unit (106) for a motor vehicle brake comprises: a housing body (122) arranged to be displaceable in a braking direction; a recess (150) that is formed in the housing body (122), wherein the recess (150) is delimited at one longitudinal end by a contact shoulder (172); a through opening (158) delimited by the contact shoulder (172); an operating member (124) that is arranged in the recess (150) so as to be displaceable for operating the motor vehicle brake and protrudes through the through-opening (158) of the contact shoulder (172), the operating member (124) being arranged in a force-transmitting manner between a brake pedal and the motor vehicle brake (400). The operating unit (106) further comprises a return spring (126) and a sleeve element (180). 一种用于机动车辆制动器的可电致动的操作单元(106)包括：壳体本体(122)，所述壳体本体被布置成能够在制动方向上移位；凹部(150)，所述凹部形成在所述壳体本体(122)中，其中，所述凹部(150)在一个纵向端部处由接触肩部(172)界定；贯通开口(158)，所述贯通开口由所述接触肩部(172)界定；操作构件(124)，所述操作构件布置在所述凹部(150)中而能够移位以用于对所述机动车辆制动器进行操作，并且所述操作构件突出穿过所述接触肩部(17