阅读说明：本技术 用于通风机的壳体和通风机 (Housing for a fan and fan ) 是由 F·勒歇尔 M·格勒 A·赫罗尔德 于 2019-06-19 设计创作，主要内容包括：本发明涉及一种用于通风机、特别是用于径向或对角通风机的壳体,其具有形成壳体的壁区域,其特征在于,这些壁区域基本上是平面或平坦的。(The invention relates to a housing for a ventilator, in particular for a radial or diagonal ventilator, having wall regions forming the housing, characterized in that the wall regions are substantially planar or flat.)

1. A housing for a ventilator, in particular a radial ventilator or a diagonal ventilator, having a wall region forming the housing,

characterized in that the wall area is substantially planar or flat.

2. Housing according to claim 1, characterized in that the wall region is made of a substantially locally planar molding, in particular a locally planar or flat sheet metal.

3. The housing according to claim 1 or 2, characterized in that the wall region forms a rotational symmetry of about 90 °.

4. The housing according to any one of claims 1 to 3, characterised in that a moulding on the chassis side is arranged parallel spaced apart from a moulding on the nozzle plate or nozzle plate side of the ventilator by a distance, wherein the distance is defined by a sheet metal part arranged therebetween forming at least a side part.

5. The housing according to claim 4, wherein the sheet metal piece forming the side part also forms a stabilizing area extending between the nozzle plate and the side part, and wherein the sheet metal piece extends substantially closed over substantially the entire circumference.

6. A housing according to claim 4 or 5, characterized in that the molding on the chassis side is angular or square or has a chamfer or radius, i.e. a convexly curved outer contour instead of a corner.

7. Housing according to one of claims 1 to 6, characterized in that the side parts are formed by 1, 2 or 3 planar sub-areas, which complement each other in line or at an angle to form the respective side part.

8. Housing according to any one of claims 4 to 7, wherein the side parts extend in the axial direction over the flow-through area and only partially over the respective side of the housing, as seen in the circumferential direction, and thereby block a part of the actual flow-through area by means of their reduced area and define an air outlet which is thus provided with openings formed in the circumferential direction between adjacent side parts.

9. The housing according to any one of claims 1 to 8, characterized in that the flat wall regions are at least substantially integrally manufactured from sheet metal plate, for example by trimming, folding or bending.

10. The housing according to any one of claims 1 to 9, wherein the side parts each have an inflow side edge and an outflow side edge, wherein the air outlets each extend in the direction of rotation of the associated ventilator wheel between the outflow side edge of one side part and the inflow side edge of the adjacent side part.

11. Housing according to claim 10, wherein the inflow-side edge and/or the outflow-side edge extends obliquely with respect to the ventilator axis, in particular at an angle of 5 ° -45 ° with respect to the ventilator axis.

12. The housing according to any one of claims 10 to 11, characterized in that the inflow side edge and/or the outflow side edge are provided with corrugations, serrations or other flow-influencing measures in the sense of trimming the substantially planar wall region.

13. Housing according to one of claims 1 to 12, characterized in that the side part is provided with elevations or depressions, for example with beads, grooves, indentations, corrugations or the like, by deformation, in particular by embossing.

14. The housing according to any one of claims 1 to 13, wherein the side length of the substantially square footprint of the enclosed cuboid of the housing is about 1.4 to 1.8 times the average diameter of the trailing edge of a blade of an impeller of the ventilator.

15. A housing according to any one of claims 1 to 14, wherein the housing is mounted within an air duct and has a plurality of air outlets, preferably three or four air outlets.

16. The housing according to claim 15, characterized in that the housing is mounted at the bottom of the air duct, preferably by means of a damping element.

17. The housing of any one of claims 1 to 16, wherein the ventilator with the housing has a maximum subharmonic sound pressure increase in the sound spectrum corresponding to the ventilator with the housing that is at least 3dB lower in the frequency range between 70% and 90% of the blade repetition frequency at a delivery volume flow rate over a higher pressure increase range on a fan characteristic curve at constant speed than the suction side narrowband sound spectrum of a ventilator that is the same but that has been replaced with a motor suspension that does not substantially affect flow conditions.

18. The housing according to any one of claims 1 to 17, characterized in that the housing is particularly compact as seen in the radial direction and the cross section does not exceed a square dimension with a side length of 1.3 times the diameter of the impeller.

19. A ventilator having a housing according to any one of claims 1 to 18.