CN218844630U - Inverted axial flow fan with frustum top - Google Patents
Inverted axial flow fan with frustum top Download PDFInfo
- Publication number
- CN218844630U CN218844630U CN202222983869.5U CN202222983869U CN218844630U CN 218844630 U CN218844630 U CN 218844630U CN 202222983869 U CN202222983869 U CN 202222983869U CN 218844630 U CN218844630 U CN 218844630U
- Authority
- CN
- China
- Prior art keywords
- motor
- spoke
- fixed
- hole
- dryer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to the technical field of the fan technique and specifically relates to flip-chip axial fan who has frustum top, the motor of overcoming current fan is in the dryer internal fixation insecure and cause the problem that screen panel processing cost is high because of the structure reason, the scheme is, the motor is fixed in the dryer, the screen panel is fixed on the dryer, impeller mounting is epaxial that the motor stretches out downwards, the motor is fixed by the support, the support has spoke board and inner ring plate, the spoke board internal end is fixed on inner ring plate, the dryer is suitable for reading and is had the flange limit of outside extension, the spoke board is fixed on the inner wall of dryer by the mounting, the mounting has the fixed limit of pressing on the flange and the connection limit of laminating on the dryer inner wall, connection limit is equipped with the tensile hole to motor axis direction, the spoke board stretches into tensile hole and welds in tensile hole department, connection limit and flange limit bolt fastening, the through-hole is established at the middle part of screen panel, the motor upper end is located the through-hole, the screen panel is frustum shape, screen panel ring silk is the spiral ring silk that forms the conical surface, the straight line muscle.
Description
Technical Field
The utility model belongs to the technical field of the fan technique and specifically relates to an inverted axial fan on utensil frustum top.
Background
The top of the outdoor host machine of the central air conditioner is provided with an axial flow fan playing a role in heat exchange, the fan mainly comprises an air duct, a motor, an impeller and a mesh enclosure, the motor is fixed in the air duct, the air duct is fixed at the upper opening of a host machine case through a flange edge on the air duct, in the early stage, the host machine is generally used as a forward-mounted axial flow fan (the structure of the fan is the same as that of the outdoor host machine fan of the household air conditioner and is different from the state of an axis), the impeller of the fan is arranged above the motor, the obvious defect of the integral attractive structure is that the host machine case needs to contain the motor, so that the height of the host machine case is increased, the manufacturing and transportation cost of the host machine is increased, later, the axial flow fan with the air duct is used as an effective means for reducing noise, the air duct is used as a stretching piece, the height of the air duct is limited to a certain degree due to the stretching property, the stretching piece is used for ensuring the strength, the precision and the material cost for controlling the air duct, after the height of the air duct is limited, the impeller is buried in the host machine case, namely, the impeller of the fan is inverted and the impeller does not influenced by the height of the host machine case.
The flip-chip type axial fan that present outdoor host computer used mainly has two not enough in the aspect:
1. the motor is fixed through a support in the air duct, the support is provided with an inner ring plate for fixing the motor, the inner ends of the spoke plates distributed on the circumference are fixed on the inner ring plate, the outer ends of the spoke plates are fixed on the inner wall of the air duct, the spoke plates use flat irons which do not influence air flow as much as possible, the outer ends of the spoke plates are welded on the inner wall of the air duct in the existing mode that the spoke plates are fixed on the inner wall of the air duct, and the structure has the defect that the welded part is easy to crack under the influence of the vibration of the motor and the torque force for starting and stopping the motor, so that the normal use of the fan is influenced;
2. the mesh enclosure at the top of the fan cannot be reproduced into the original planar mesh enclosure, the mesh enclosure is designed into a protruding mesh enclosure with a peripheral wall and an end wall, the protruding mesh enclosure refers to the shape of a mesh enclosure at the front of a household fan, in order to improve rigidity, the end face is in a fluctuant shape, and iron wire rings with concentric circles and large and small diameters are welded on radial ribs which are circumferentially distributed and fluctuated, so that the yield of the fan is far lower than that of the household fan, high-cost automatic production equipment is difficult to use, welding spots are densely distributed on the mesh enclosure, the labor cost is high, and the productivity is low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides an inverted axial flow fan with frustum top, overcomes the motor of current fan and causes the screen panel processing cost height, the inefficiency problem because of the reason in the structure with the fan because of the duct internal fixation is unreliable.
The utility model provides a technical scheme that its technical problem adopted is: a flip axial flow fan with a frustum top comprises an air duct, a motor, an impeller and a mesh enclosure, wherein the motor is fixed in the air duct, the mesh enclosure is fixed at the upper opening of the air duct, the impeller is installed on a shaft extending downwards from the motor, the motor is fixed by a support in the air duct, the support is provided with a spoke plate and an inner ring plate for fixing the motor, the inner end of the spoke plate distributed circumferentially is fixed on the inner ring plate, the outer end of the spoke plate distributed circumferentially is fixed on the inner wall of the air duct, the mesh enclosure is formed by welding circumferential annular wires and circumferential radial spokes, the upper opening of the air duct is provided with a flange edge extending outwards, the outer end of the spoke plate is fixed on the inner wall of the air duct by a fixing piece, the fixing piece is provided with a fixing edge pressed on the flange edge and a connecting edge attached to the inner wall of the air duct, the connecting edge is provided with a stretching hole in the axial direction of the motor, the spoke plate extends into the stretching hole and is welded at the stretching hole, and the connecting edge of the fixing piece is fixedly connected with the flange edge of the air duct by bolts;
the mesh enclosure is characterized in that a through hole is formed in the center of the mesh enclosure, the upper end of the motor is located in the through hole, the mesh enclosure is in a hollow frustum shape, the ring wire is a spiral ring wire forming a conical surface, gaps are formed between adjacent rings of the ring wire, and the spoke ribs are linear ribs.
The utility model has the advantages that:
1. the utility model discloses an axial fan sets up the wind tunnel upper mouth to take the flange limit on the basis, fixes the mode that welds and the bolt hookup with the spoke board outer end on the wind tunnel through the mounting, and the spoke board stretches into the tensile hole of mounting, and the flange limit is stable respectively with tensile hole and has born the torsion and the axial pressure when motor rotation, stop and work, has reduced the effort that the welding position receives, and, even the welding department splits, the spoke board also can not drop from the wind tunnel, and the motor still can be fixed in the wind tunnel, the utility model discloses the fixed removable structure that uses of the axial fan support of structure, fan easy maintenance;
2. the mesh enclosure of the fan is frustum-shaped, the ring wire can adopt a spiral form instead of a concentric ring form for the protruded mesh enclosure, the processing is convenient and fast, the radial ribs are linear, namely the welding points of each radial rib and the ring wire are straight lines, and the mechanical welding is easy to realize; moreover, the motor is exposed from the mesh enclosure, so that the material of the mesh enclosure is saved, and the reduction of the material area of the mesh enclosure is also beneficial to improving the rigidity of the mesh enclosure.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of the present invention with the mesh cover removed;
fig. 3 is an axial cross-sectional view of the present invention;
FIG. 4 is an enlarged view at A in FIG. 3;
fig. 5 is a schematic structural view of the fixing member of the present invention;
FIG. 6 is a partial cross-sectional view showing the positional relationship among the air duct, the spokes and the fixing member.
In the figure: 1. 1-1 of an air duct and a flange edge;
2. a motor;
3. an impeller;
4. mesh enclosure, 4-1, ring wire, 4-2, spoke rib, 4-3 and inner ring;
5. a spoke plate;
6. an inner ring plate;
7. the fixing piece comprises 7-1 parts of fixing edges, 7-2 parts of connecting edges, 7-3 parts of stretching holes.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and thus only show the components that are relevant to the invention.
The inverted axial flow fan with the frustum top as shown in the attached figures 1 and 2 comprises an air duct 1, a motor 2, an impeller 3 and a mesh enclosure 4, wherein the motor 2 is fixed in the air duct 1, the mesh enclosure 4 is fixed at the upper opening of the air duct 1, the impeller 3 is arranged on a shaft extending downwards from the motor 2, the motor 2 is fixed by a support in the air duct 1, the support is provided with a spoke plate 5 and an inner ring plate 6 for fixing the motor 2, the inner end of the spoke plate 5 distributed circumferentially is fixed on the inner ring plate 6, the outer end of the spoke plate is fixed on the inner wall of the air duct 1, the inner end close to the axis of the motor is an outer end far away from the axis of the motor, and the mesh enclosure 4 is formed by welding a circumferential ring wire 4-1 and a circumferential radial spoke 4-2 distributed circumferentially,
the upper opening of the air duct 1 is provided with a flange edge 1-1 extending towards an outer ring, the outer end of the spoke plate 5 is fixed on the inner wall of the air duct 1 through a fixing piece 7, as shown in the attached drawings 5 and 6, the fixing piece 7 is provided with a fixing edge 7-1 pressed on the flange edge 1-1 and a connecting edge 7-2 attached to the inner wall of the air duct 1, the connecting edge 7-2 is provided with a stretching hole 7-3 towards the axial direction of the motor 2, the spoke plate 5 extends into the stretching hole 7-3 and is welded at the stretching hole 7-3, the connecting edge 7-2 of the fixing piece 7 is fixedly connected with the flange edge 1-1 of the air duct 1 through a bolt, and the connecting edge 7-2 and the flange edge 1-1 are provided with corresponding through holes;
referring to fig. 3 and 4, a through hole is formed in the center of the mesh enclosure 4, the upper end of the motor 2 is located in the through hole, the mesh enclosure 4 is in a hollow frustum shape, the ring wire 4-1 is a spiral ring wire forming a conical surface, a gap is formed between adjacent rings of the ring wire 4-1, and the spoke ribs 4-2 are linear ribs.
The body of the wind tube 1 close to the flange edge 1-1 is in a cone cylinder shape with a big opening at the top, and the connecting edge 7-2 of the fixing piece 7 is attached to the inner cone wall, so that the axial bearing capacity of the wind tube 1 on the motor 2 is improved, the strength of the wind tube 1 is improved, and the fixing piece 7 can be made to have a thickness favorable for forming.
The number of fixing elements 7 is the same as the number of spoke plates 5, so that the fixing elements 7 can be a material-saving single part instead of a full-circle ring.
The height of the stretching hole 7-3 is 3-10 mm, the stretching height depends on the material thickness of the connecting edge 7-2 and the stretching process, and the stretching height is increased as much as possible.
The spoke plates 5 are flat irons, the stretching holes 7-3 are flat holes, the peripheral walls of the spoke plates 5 are welded with the peripheral rings of the openings of the stretching holes 7-3, and the gaps between the stretching holes 7-3 are sleeved on the spoke plates 5 and are reduced as far as possible.
The outer end weld is not shown in the drawings and both ends of the tension holes 7-3 are welded to the spoke plate 5, which may require the outer end face of the spoke plate 5 to be retracted into the tension hole 7-3 a distance to accommodate the weld.
The upper end surface of the motor 2 is 5-50 mm higher than the plane of the upper opening of the through hole of the mesh enclosure 4.
The inner end part of the ring wire 4-1 and the inner end part of the spoke rib 4-2 are welded on the inner ring 4-3, and the inner ring 4-3 is sleeved on the outer ring of the motor 2 in a clearance way.
The cross-sectional area of the spoke ribs 4-2 is larger than that of the ring wires 4-1.
The outer end of the spoke rib 4-2 is bent and formed with a mounting hole, and the mesh enclosure 4 is fixed on the flange edge 1-1 of the air duct 1 through a mounting hole bolt.
While the foregoing description describes only certain embodiments of the invention, it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a flip-chip axial fan of utensil frustum top, includes dryer (1), motor (2), impeller (3) and screen panel (4), motor (2) are fixed in dryer (1), the last mouth in dryer (1) is fixed in screen panel (4), install on the axle that motor (2) downwardly extending is epaxial in impeller (3), motor (2) are fixed by the support in dryer (1), the support has inner ring plate (6) of spoke board (5) and fixed motor (2), spoke board (5) the inner end of circumference distribution is fixed on inner ring plate (6), the outer end is fixed on the inner wall of dryer (1), screen panel (4) are formed by radial spoke (4-2) welding of the ring silk (4-1) of circumference and circumference distribution, characterized by:
the upper opening of the air duct (1) is provided with a flange edge (1-1) extending towards an outer ring, the outer end of the spoke plate (5) is fixed on the inner wall of the air duct (1) through a fixing piece (7), the fixing piece (7) is provided with a fixing edge (7-1) pressed on the flange edge (1-1) and a connecting edge (7-2) attached to the inner wall of the air duct (1), the connecting edge (7-2) is provided with a stretching hole (7-3) towards the axial direction of the motor (2), the spoke plate (5) extends into the stretching hole (7-3) and is welded at the stretching hole (7-3), and the connecting edge (7-2) of the fixing piece (7) is fixedly connected with the flange edge (1-1) of the air duct (1) through a bolt;
the mesh enclosure is characterized in that a through hole is formed in the center of the mesh enclosure (4), the upper end of the motor (2) is located in the through hole, the mesh enclosure (4) is in a hollow frustum shape, the ring wire (4-1) is a spiral ring wire forming a conical surface, gaps are formed between adjacent rings of the ring wire (4-1), and the spoke ribs (4-2) are linear ribs.
2. The inverted axial flow fan with a frustum top of claim 1, wherein: the body of the air duct (1) close to the flange edge (1-1) is in a cone cylinder shape with a large opening, and the connecting edge (7-2) of the fixing piece (7) is attached to the inner cone wall.
3. The inverted axial flow fan with a frustum top of claim 1, wherein: the number of the fixing pieces (7) is the same as that of the spoke plates (5).
4. The inverted axial flow fan with a frustum top of claim 1, wherein: the height of the stretching hole (7-3) is 3-10 mm.
5. The inverted axial flow fan with a frustum top of claim 1, wherein: the spoke plates (5) are flat irons, the stretching holes (7-3) are flat holes, and the peripheral walls of the spoke plates (5) are welded with the peripheral rings of the openings of the stretching holes (7-3).
6. The inverted axial flow fan with a frustum top of claim 5, wherein: the periphery of the outer end face of the spoke plate (5) is welded with the periphery of the bottom of the stretching hole (7-3).
7. The inverted axial flow fan with a frustum top of claim 1, wherein: the upper end surface of the motor (2) is 5-50 mm higher than the plane of the upper opening of the through hole of the mesh enclosure (4).
8. The inverted axial flow fan with a frustum top of claim 1, wherein: the inner end parts of the ring wires (4-1) and the inner end parts of the spokes (4-2) are welded on the inner ring (4-3), and the inner ring (4-3) is sleeved on the outer ring of the motor (2) in a clearance mode.
9. The inverted axial flow fan with a frustum top of claim 1, wherein: the cross section area of the spoke ribs (4-2) is larger than that of the ring wires (4-1).
10. The inverted axial flow fan with a frustum top of claim 1, wherein: the outer end of the spoke rib (4-2) is bent and formed with a mounting hole, and the mesh enclosure (4) is fixed on the flange edge (1-1) of the air duct (1) through the mounting hole bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222983869.5U CN218844630U (en) | 2022-11-09 | 2022-11-09 | Inverted axial flow fan with frustum top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222983869.5U CN218844630U (en) | 2022-11-09 | 2022-11-09 | Inverted axial flow fan with frustum top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844630U true CN218844630U (en) | 2023-04-11 |
Family
ID=87310732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222983869.5U Active CN218844630U (en) | 2022-11-09 | 2022-11-09 | Inverted axial flow fan with frustum top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379015A (en) * | 2023-04-21 | 2023-07-04 | 浙江明新风机有限公司 | Cooling fan |
-
2022
- 2022-11-09 CN CN202222983869.5U patent/CN218844630U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379015A (en) * | 2023-04-21 | 2023-07-04 | 浙江明新风机有限公司 | Cooling fan |
| CN116379015B (en) * | 2023-04-21 | 2024-01-23 | 浙江明新风机有限公司 | Cooling fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218844630U (en) | Inverted axial flow fan with frustum top | |
| CN206957989U (en) | Volute of blower and the blower fan with the volute of blower | |
| CN2781050Y (en) | Guide vane of water pump | |
| CN218817094U (en) | Inverted axial flow fan | |
| CN218844631U (en) | Axial flow fan of outdoor host of central air conditioner | |
| CN219911312U (en) | Inverted axial flow fan with mesh enclosure serving as motor fixing frame | |
| CN207166262U (en) | Electric motor end cap and motor | |
| CN215195624U (en) | Chassis filtering structure and filtering, washing and drying machine | |
| CN205686083U (en) | A kind of improved hub | |
| CN207740226U (en) | A kind of motor for evaporative condenser holder drum device | |
| CN210035701U (en) | Cabinet air conditioner | |
| CN215860341U (en) | Novel impact-resistant impeller of steam turbine | |
| CN205869841U (en) | A positioner for high precision welding of motor frame | |
| CN205686084U (en) | A kind of automobile steel wheel hub | |
| CN205686071U (en) | A kind of wheel hub | |
| CN215452644U (en) | Front end cover of generator | |
| CN202140331U (en) | Bearing frame of centrifugal fan | |
| CN107201629A (en) | Outer barrel with enhancing structure and the washing machine with this outer barrel | |
| CN101660531A (en) | Fixing device of compressor | |
| CN217010456U (en) | Electric motor car in-wheel motor stator support | |
| CN2556532Y (en) | Air-exhausting device for outdoor unit of air conditioner | |
| CN214274048U (en) | Combined fan shell | |
| CN210629217U (en) | Rotor support for motor | |
| CN217080875U (en) | Outer rotor disc, outer rotor motor, compressor and refrigeration equipment | |
| CN217271017U (en) | Volute, fan system applying volute and range hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |