摘要:
The invention relates to a heating device (1), comprising a housing (2), which has a fluid channel arranged therein, which has a fluid inlet (12, 13) and a fluid outlet (12, 13), wherein an element (30) that generates an alternating magnetic field is provided in the housing (2), which element is separated from the fluid channel in a sealed manner by at least one wall, wherein furthermore at least one metal planar heating element (3, 8, 22) is provided, which can be heated by the alternating magnetic field, wherein the at least one planar heating element (3, 8, 22) is arranged in the fluid channel, wherein at least one of the planar heating elements (3, 8) is made of a magnetic material.
摘要:
The operating device for an item of electrical equipment or a system, in particular for a vehicle component, is provided with at least one elastically mounted operating element (12), a counter-element (14), relative to which the at least one operating element (12) is movable when actuated, thereby varying the distance, namely as seen in the movement direction, and at least one capacitor (38) which comprises a first carrier body (20) with a first capacitor electrode (34) and an elastically bendable second carrier body (22), designed as a bending bar, having a first end (26) and a second end (32) opposite said first end and having a second capacitor electrode (36) opposite the first capacitor electrode (34). Connected to the first and second capacitor electrode (34, 36) is an evaluation unit (42) for determining the capacitance and/or a change in the capacitance of the at least one capacitor (38) upon actuation of the at least one operating element (12).
摘要:
The capacitive sensor for detecting a relative movement of two adjacent bodies comprises a first electrode (76), which has a first electrically conducting electrode surface (78) and which is arranged on a first electrode supporting body (74), and a second electrode (86), which is opposite the first electrode (76), has a second electrically conducting electrode surface (88) and is arranged on a second electrode supporting body (82). The second electrode supporting body (82) is designed as a resilient film element (84) that is supported on the first electrode supporting body (74) on two spaced-apart opposing support sections (96) on both sides of the two electrodes (76, 86). The capacitive sensor further comprises a pressure body (92) on the side of the electrode supporting body (82) facing away from the second electrode (86). Said pressure body (92) comprises at least two pressure projections (94) that rest, in the region between the support sections (96) of the second electrode supporting body (82), against the side of the second electrode supporting body facing away from the second electrode (86) and that press against the second electrode supporting body (82) while bending it when there is a relative movement between the first electrode supporting body (74)and the second pressure body (92). The at least two pressure projections (94) are spaced apart from each other in the same spatial direction in which the support sections (96) of the second electrode supporting body (82) are spaced apart. The second electrode (86) is secured to the second electrode supporting body (82) only in a securing section that is substantially in the center between the pressure regions of the second electrode supporting body (82) in which the pressure projections (94) rest against the second electrode supporting body (82).
摘要:
The invention relates to a heating device (1) comprising a housing (3) having a fluid channel arranged therein with a fluid inlet (6, 7) and a fluid outlet (6, 7), wherein an element generating an alternating magnetic field is provided in the housing (3), wherein, furthermore, at least one metallic panel heating element (18, 19, 20) is provided, which is heatable by the alternating magnetic field, wherein the at least one panel heating element (18, 19, 20) is arranged in the fluid channel, wherein the element generating the alternating magnetic field is formed by a coil (8) shaped in hollow-cylindrical fashion, which coil (8) is operable by an AC voltage, wherein the coil (8) is separated in fluidtight fashion from the fluid channel.