The invention relates to a pneumatic valve having a housing (1) in which an air chamber (2) having a supply opening (3), a connection opening (4) and a discharge opening (5) is formed, an actuator (6) having a movable closing element (7) being arranged in the housing (1), the closing element (7) forming a plunger (11), the plunger protrudes through the discharge opening (5) and forms a plate (11a) at the portion thereof protruding into the air chamber, on which plate a first sealing element (8) for closing the discharge opening (5) is arranged, and which sealing element forms an elastic element (10) which presses the first sealing element (8) against the discharge opening (5) in the active state of the pneumatic valve, the actuator (6) further has: a circuit board (12); an actuating element (13) having an actuating portion (14) for acting on the plunger (11); and a bending portion (15) connected to the actuating portion (14) and the circuit board (12); and an actuating element (16) in the form of a shape memory element, in which a second sealing element (30) is arranged in the air chamber (2), said second sealing element closing the supply opening (3) in a non-energized state of the actuator element (16) and opening the supply opening (3) in an energized state of the actuator element (16), a third sealing element (32) is arranged in the air chamber (2), said third sealing element being resiliently connected to the second sealing element (30) and acting as a check valve.
一种气动阀,该气动阀具有壳体(1),在该壳体中形成有具有供应开口(3)、连接开口(4)和排放开口(5)的空气腔室(2),其中,具有可移动的封闭元件(7)的致动器(6)布置在壳体(1)中,其中,封闭元件(7)形成有柱塞(11),该柱塞突出穿过排放开口(5)并且在其突出到空气腔室中的部分处形成板(11a),用于封闭排放开口(5)的第一密封元件(8)布置在板上,并且该封闭元件形成有弹性元件(10),该弹性元件在气动阀的启用状态下将第一密封元件(8)压靠在排放开口(5)上,其中,致动器(6)还具有:电路板(12);致动元件(13),该致动元件具有用于作用在柱塞(11)上的致动部分(14);以及弯曲部分(15),该弯曲部分连接到致动部分(14)和电路板(12);以及致动元件(16),该致动元件呈形状记忆元件的形式,其中,第二密封元件(30)布置在空气腔室(2)中,所述第二密封元件在致动器元件(16)的未通电状态下封闭供应开口(3),并且在致动器元件(16)的通电状态下打开供应开口(3),其中,第三密封元件(32)布置在空气腔室(2)中,所述第三密封元件弹性地连接到第二密封元件(30)并且充当止回阀。
Pneumatic valve
气动阀
2025-03-18
Patent
Electronic Resource
Chinese
NTIS | 1978
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