摘要:
A housing for receiving an electronic circuit (4) having a plurality of components (5) having a carrier plate (7) and a housing cover (8) including a circumferentially enclosing wall (9) on the carrier plate (7) and a cover part (10) on the wall (9), which cover part (10) lies opposite the carrier plate (7). A volume compensation element (11) is attached on the carrier plate (7) in an interior (12) of the housing cover (8) which is enclosed in a pressure-tight manner from an external atmosphere. The volume compensation element (11) is elastically formed providing a variable volume for compensation of pressure fluctuations in the interior (12), which variable volume occurs with a change in position of the volume compensation element (11) relative to the carrier plate (7). A gap between the volume compensation element (11) and the carrier plate (7) is connected to the external atmosphere.
摘要:
A diffuser (3) for a fan (2) of axial, radial or diagonal type of construction, has an inlet opening (10) and having an outlet opening (20) for a gaseous medium which flows through a diffuser interior (I), which is enclosed by an outer housing (30), in an axially oriented main flow direction (S) from the inlet opening (10) to the outlet opening (20). The cross section of the diffuser interior (I) increases from the cross section (11) of the inlet opening to the cross section (21) of the outlet opening (20), wherein the outer housing (30) forms an outer diffuser part (AD) which delimits the diffuser interior (I) to the outside. Along the main flow direction (S), the cross section of the outer diffuser part (AD) changes from a circular cross section (31) at the inlet opening (10) to a non-circular cross section (32) at the outlet opening (20).
摘要:
A diffuser (3) for a fan (2) of axial, radial or diagonal type of construction, has an inlet opening (10) and having an outlet opening (20) for a gaseous medium which flows through a diffuser interior (I), which is enclosed by an outer housing (30), in an axially oriented main flow direction (S) from the inlet opening (10) to the outlet opening (20). The cross section of the diffuser interior (I) increases from the cross section (11) of the inlet opening to the cross section (21) of the outlet opening (20), wherein the outer housing (30) forms an outer diffuser part (AD) which delimits the diffuser interior (I) to the outside. Along the main flow direction (S), the cross section of the outer diffuser part (AD) changes from a circular cross section (31) at the inlet opening (10) to a non-circular cross section (32) at the outlet opening (20).
摘要:
The invention relates to a wall ring for an axial fan comprised of a supporting frame (1) on which a circular connecting piece (2) is formed, inside which the axial fan is arranged. The supporting frame (1) is assembled from a plurality of frame elements (6) by means of form and force-fitting connecting elements. The circular connecting piece (2) is formed of a plurality of circular segments (22) arranged circumferentially one after the other, said circular segments being connected to each other and to the supporting frame (1) by means of form and force-fitting or material-bonded connections or by such connection elements, respectively.
摘要:
The invention relates to a wall ring for an axial fan comprised of a supporting frame (1) on which a circular connecting piece (2) is formed, inside which the axial fan is arranged. The supporting frame (1) is assembled from a plurality of frame elements (6) by means of form and force-fitting connecting elements. The circular connecting piece (2) is formed of a plurality of circular segments (22) arranged circumferentially one after the other, said circular segments being connected to each other and to the supporting frame (1) by means of form and force-fitting or material-bonded connections or by such connection elements, respectively.