CN212079710U - Combined energy-saving axial flow fan with split type flow guide shell - Google Patents
Combined energy-saving axial flow fan with split type flow guide shell Download PDFInfo
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- CN212079710U CN212079710U CN202020774955.3U CN202020774955U CN212079710U CN 212079710 U CN212079710 U CN 212079710U CN 202020774955 U CN202020774955 U CN 202020774955U CN 212079710 U CN212079710 U CN 212079710U
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- guide shell
- flow guide
- split type
- shell
- axial flow
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses an energy-conserving axial fan of combination formula with split type water conservancy diversion casing, including external rotor electric machine, axial impeller, stator and water conservancy diversion casing, the water conservancy diversion casing includes that the water conservancy diversion casing is anterior and water conservancy diversion casing rear portion, and the connection can be dismantled each other to the water conservancy diversion casing front portion and water conservancy diversion casing rear portion. The utility model adopts the split type flow guide shell, which can effectively reduce the demoulding difficulty of the injection mould and the mould cost; the front part of the diversion shell is designed into a replaceable structure, so that the diversion shell has certain expansibility, the local damage can be replaced independently, the integral replacement is invalid, and the replacement cost is reduced; the utility model discloses a water conservancy diversion casing sets up and makes the reinforcing of fluid water conservancy diversion effect, and the fan range is farther.
Description
Technical Field
The utility model belongs to the technical field of the fan, especially, relate to an energy-conserving axial fan of combination formula with split type water conservancy diversion casing.
Background
As key equipment in industries such as refrigeration and air conditioning, indexes such as air quantity, air supply distance, efficiency and noise of a fan are increasingly emphasized. The air supply of the fan can generate a plurality of vortexes, so that the air supply range of the fan is influenced; the mutual interference between a plurality of fans of the condensing unit causes that the air supply distance of the fans can not be effectively played. Most fans on the market at present are not provided with a flow guide device, so that the problems of insufficient range and low efficiency exist, and the development requirements of the refrigeration industry cannot be met.
Some current fans that have guiding device, water conservancy diversion casing often integrated into one piece, but the water conservancy diversion casing of integral type because the structure that both ends expand outward, the drawing of patterns is comparatively difficult in whole production through the mould, and manufacturing cost is higher, and the water conservancy diversion casing of integral type in case local damage appears, just needs whole change, and replacement cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model designs an energy-conserving axial fan of combination formula with split type water conservancy diversion casing.
The utility model adopts the following technical scheme:
the combined energy-saving axial flow fan with the split type flow guide shell comprises an outer rotor motor, an axial flow impeller, a guide vane and a flow guide shell, wherein the flow guide shell comprises a flow guide shell front part and a flow guide shell rear part, and the flow guide shell front part and the flow guide shell rear part are detachably connected with each other. The external rotor motor may be an alternating current asynchronous motor (AC), or a direct current motor (EC).
Preferably, the connection parts of the front part and the rear part of the diversion shell are correspondingly provided with rabbets, the front part and the rear part of the diversion shell are respectively and correspondingly provided with reinforcing ribs, mounting holes are respectively formed in the reinforcing ribs, and the front part and the rear part of the diversion shell are mutually connected through bolt structures in the mounting holes. The reinforcing ribs improve the strength and rigidity of the diversion shell, and the seam allowance has limiting and sealing functions.
Preferably, a metal insert is arranged in the reinforcing rib. The bolt connection strength is ensured.
Preferably, the middle part of the axial flow impeller is arranged on a rotor shell of the outer rotor motor; the middle part of the guide vane is provided with a supporting plate for supporting the outer rotor motor, the guide vane is fixedly connected with the rear part of the diversion shell, and the axial flow impeller, the guide vane and the outer rotor motor are positioned on the inner side of the diversion shell. The supporting plate bears the rotating torque force, the axial force and the gravity from the outer rotor motor and stably supports the outer rotor motor; the guide shell plays a role in radial positioning, the coaxiality is good, and the gap between the impeller and the guide shell is smaller.
Preferably, the outer side of the guide vane is integrally connected with the inner wall of the rear part of the flow guide shell, and the middle part of the guide vane is integrally connected with the supporting plate; the rear part of the flow guide shell, the guide vane and the supporting plate are of an integrally formed structure.
Preferably, the rear part of the flow guide shell is provided with a protective screen, and four mounting legs of the protective screen are buckled in a fixing notch at the rear part of the flow guide shell and are fixed by screws. The protective net cover is made of metal or plastic materials.
Preferably, the rear part of the flow guide shell is conically expanded outwards, and the conical angle x of the outward expansion is 6-30 degrees.
Preferably, the axial-flow impeller is composed of 3-7 blades, and the axial-flow impeller is an integral impeller and is assembled with the outer rotor motor in an attaching mode. The axial flow impeller is integrally formed by injection molding through reinforced modified plastic materials. The axial flow impeller can be an integrated impeller or a split impeller, and the integrated axial flow impeller can be integrally formed by injection molding of reinforced modified plastic materials or by die casting of metal; the split axial flow impeller can be formed by metal die casting or injection molding through a metal insert and a plastic material.
Preferably, the blades of the guide vane are designed into airfoil-shaped outer profile blades and are inclined and twisted at an alpha angle of 0-85 degrees. The angle alpha is a variable value, determined according to the speed magnitude and speed direction of the fluid, and is matched with the angle of the axial flow impeller. This greatly contributes to the improvement of the static pressure efficiency of the axial flow fan.
Preferably, the supporting plate is a through hole cylinder and is sleeved and positioned with the outer rotor motor; the supporting plate is provided with a flange structure which is in up-and-down connection and matching with a motor flange arranged on the outer rotor motor, and the outer rotor motor penetrates through the supporting plate and is locked and fixed by using bolts. And better coaxiality is provided for the outer rotor motor and the flow guide shell.
The utility model has the advantages that: (1) the utility model adopts the split type flow guide shell, which can effectively reduce the demoulding difficulty of the injection mould and the mould cost; the front part of the diversion shell is designed into a replaceable structure, so that the diversion shell has certain expansibility, the local damage can be replaced independently, the integral replacement is invalid, and the replacement cost is reduced; (2) the utility model discloses a water conservancy diversion casing sets up and makes the reinforcing of fluid water conservancy diversion effect, and the fan range is farther.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the present invention for removing the protective mesh;
fig. 3 is a perspective view of the present invention with the protective mesh removed;
fig. 4 is a schematic view of an exploded structure of the present invention;
fig. 5 is a partial cross-sectional view of the present invention;
fig. 6 is a partial cross-sectional view of an axial flow impeller according to the present invention;
fig. 7 is a schematic view of an internal structure of the present invention;
fig. 8 is a schematic structural view of the middle guide casing and the guide vane of the present invention;
in the figure: 1. the guide vane type air conditioner comprises a guide shell front part, a guide shell rear part, a guide vane 3, an axial flow impeller 4, an outer rotor motor 5, a guide vane 6, a protective mesh enclosure 7, a support plate 8, a fixed notch 9 and a reinforcing rib;
11. motor rotor subassembly, 12, motor flange, 13, tang, 14, mounting hole.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example (b): as shown in fig. 1-8, a combined energy-saving axial flow fan with a split type flow guiding shell comprises a flow guiding shell front part 1, a flow guiding shell rear part 2, an axial flow impeller 3, an outer rotor motor 4, a guide vane 5 and a protective mesh enclosure 6.
The guide shell is of a split structure, the front part 1 of the guide shell is installed on user equipment or a fixed platform, and the inside of the rear part 2 of the guide shell is fixedly connected with the guide vane. The guide vanes 5 are supported by the guide shell rear part 2 in a stressed manner.
An axial flow impeller 3 is arranged in the front part 1 of the guide shell; the middle part of the axial flow impeller 3 is arranged on a rotor shell of the outer rotor motor 4.
The front part 1 of the diversion shell is connected with the rear part 2 of the diversion shell through bolts in 8 reinforcing ribs 9 uniformly distributed in the circumferential direction, force can be reliably transferred, and the diversion shell has high strength, and a seam allowance is arranged at the joint of the front part 1 of the diversion shell and the rear part 2 of the diversion shell to ensure coaxiality and have a sealing effect.
The middle part of the guide vane 5 is provided with a support plate 7 for supporting the outer rotor motor 4; the support plate 7 bears the rotation torque force, the axial force and the gravity from the outer rotor motor 4, and stably supports the outer rotor motor 4.
The outer side of the guide vane 5 is integrally connected with the inner wall of the rear part 2 of the flow guide shell, and the middle part of the guide vane is integrally connected with an annular supporting plate 7; the rear part 2 of the diversion shell, the guide vane 5 and the support disc 7 are of an integrally formed structure.
The rear part 2 of the diversion shell is provided with a protective screen 6, and four mounting feet of the protective screen 6 are buckled in a fixing notch 8 of the diversion shell 2 and fixed by screws. The protective net cover is made of plastic material.
The supporting disk 7 is connected with a plurality of stator blades, wherein the supporting disk 7 is annular, and the supporting disk 7 supports the installation of the whole outer rotor motor 4. The guide vane blades are evenly distributed in a circumference mode by taking the support plate as a center and are arranged to be matched with the air flow direction in a space torsion mode.
The outer frame of the rear part 2 of the flow guide shell is conical and serves as an airflow diffusion channel, and the conical angle x is 6-30 degrees. The side wall of the rear part 2 of the diversion shell bears the torsion, the axial force and the gravity transmitted by the support disc 7.
The axial flow impeller 3 is composed of 3-7 blades, the axial flow impeller 3 is an integrated impeller and is attached to the motor rotor assembly 11, and the axial flow impeller 3 and the motor rotor assembly 11 are installed on the same axis. The motor rotor assembly 11 is a motor rotating part, and includes an impeller and a rotor case.
The protective net cover 6 and the support plate 7 in the guide vane 5 can be in a non-contact mode, are not directly connected and touched and are mutually independent; or the protection net cover 6 can be fixedly connected and installed with the support plate 7 through bolts in a contact fixed installation mode.
The guide vane 5 is designed into an airfoil-shaped outer profile blade, is inclined and twisted at an alpha angle, is a variable numerical value, is determined according to the speed and the speed direction of the fluid, and is designed to be matched with the axial flow impeller 5 at an angle of 0-85 degrees.
The supporting plate 7 is fixedly installed with the outer rotor motor 4, particularly the supporting plate 7 is designed into a through hole cylinder mode and is sleeved and positioned with the outer rotor motor 4 to provide better coaxiality for the motor and the flow guide shell, so that the gap between the axial flow impeller and the flow guide shell is reduced; the supporting disk is provided with a flange structure which is matched with a motor flange 12 of the outer rotor motor 4 up and down, the outer rotor motor 4 penetrates through the supporting disk 7, and the supporting disk 7 is installed in contact with the flange surface of the motor.
The front part and the rear part of the diversion shell are mutually connected through 8 reinforcing ribs which are uniformly distributed in the circumferential direction, the front part 1 of the diversion shell and the rear part 2 of the diversion shell are mutually connected through a spigot 13 at a connecting part, the reinforcing ribs 9 on the front part 1 of the diversion shell and the rear part 2 of the diversion shell are in one-to-one correspondence, mounting holes 14 are arranged in the reinforcing ribs 9, the front part 1 of the diversion shell and the rear part 2 of the diversion shell are mutually connected through a bolt structure, and bolts are arranged in the mounting; the reinforcing ribs 9 improve the strength and rigidity of the flow guide shell; in order to ensure the connection strength of the bolt, a metal insert is arranged in the reinforcing rib 9.
The working principle and the process are as follows:
the split type guide shell is connected through bolts in the reinforcing ribs, the guide vanes are fixedly supported in the guide shell, the support plates are arranged in the guide vanes, and the outer rotor motor is installed on the support plates, wherein the guide vanes are of a wing-shaped profile structure, and are designed to be spatially twisted to form guide vanes, so that the outlet angle of fan airflow is matched, airflow vortex loss is reduced, and airflow range is improved. When the axial flow fan operates, fluid in the space on the suction side gradually and rapidly flows in through the current collector-shaped inlet in the flow guide shell; the axial flow impeller works on the inflow fluid in the guide shell, and because the clearance between the axial flow impeller and the guide shell is small, the backflow loss of the fluid passing through the position is small, and the efficiency of the fan is high; the guide shell is internally provided with the wing-shaped guide vane, so that the fluid guide effect is enhanced, the range of the fan is farther, and meanwhile, the guide shell expands the structure through the cone to expand the airflow, so that the static pressure efficiency of the axial flow fan is further improved.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (10)
1. The combined energy-saving axial flow fan with the split type flow guide shell comprises an outer rotor motor, an axial flow impeller, a guide vane and a flow guide shell body and is characterized in that the flow guide shell body comprises a flow guide shell body front part and a flow guide shell body rear part, and the flow guide shell body front part and the flow guide shell body rear part are detachably connected with each other.
2. The combined energy-saving axial flow fan with the split type flow guide shell according to claim 1, wherein the connection parts of the front part of the flow guide shell and the rear part of the flow guide shell are provided with rabbets in a distributed and corresponding manner, the front part of the flow guide shell and the rear part of the flow guide shell are respectively provided with reinforcing ribs in a corresponding manner, the reinforcing ribs are respectively provided with mounting holes therein, and the front part of the flow guide shell and the rear part of the flow guide shell are connected with each other through bolt structures in the mounting holes.
3. The combined energy-saving axial flow fan with the split type flow guide shell according to claim 2, wherein a metal insert is arranged in the reinforcing rib.
4. The combined energy-saving axial flow fan with the split type flow guide shell according to claim 1, wherein the middle part of the axial flow impeller is arranged on a rotor shell of an outer rotor motor; the middle part of the guide vane is provided with a supporting plate for supporting the outer rotor motor, the guide vane is fixedly connected with the rear part of the diversion shell, and the axial flow impeller, the guide vane and the outer rotor motor are positioned on the inner side of the diversion shell.
5. The combined energy-saving axial flow fan with the split type flow guide shell is characterized in that the outer side of the guide vane is integrally connected with the inner wall of the rear part of the flow guide shell, and the middle part of the guide vane is integrally connected with the supporting plate; the rear part of the flow guide shell, the guide vane and the supporting plate are of an integrally formed structure.
6. The combined energy-saving axial flow fan with the split type flow guide shell is characterized in that a protective screen is arranged at the rear part of the flow guide shell, and four mounting legs of the protective screen are buckled in a fixing notch at the rear part of the flow guide shell and fixed by screws.
7. The combined energy-saving axial flow fan with the split type flow guide shell according to claim 1, wherein the rear portion of the flow guide shell is conically expanded outwards, and the conical angle x of the conical shape is 6-30 degrees.
8. The combined energy-saving axial flow fan with the split type flow guide shell is characterized in that the axial flow impeller is composed of 3-7 blades, and the axial flow impeller is an integral impeller and is assembled with an outer rotor motor in a fitting mode.
9. The combined energy-saving axial flow fan with the split type flow guide shell according to claim 1, wherein blades of the guide vanes are designed to be wing-shaped outer profile blades and are inclined and twisted at an angle of alpha, and the angle of alpha is 0-85 degrees.
10. The combined energy-saving axial flow fan with the split type flow guide shell is characterized in that the supporting plate is a through hole cylinder and is sleeved and positioned with an outer rotor motor; the supporting plate is provided with a flange structure which is in up-and-down connection and matching with a motor flange arranged on the outer rotor motor, and the outer rotor motor penetrates through the supporting plate and is locked and fixed by using bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020774955.3U CN212079710U (en) | 2020-05-12 | 2020-05-12 | Combined energy-saving axial flow fan with split type flow guide shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020774955.3U CN212079710U (en) | 2020-05-12 | 2020-05-12 | Combined energy-saving axial flow fan with split type flow guide shell |
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| Publication Number | Publication Date |
|---|---|
| CN212079710U true CN212079710U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020774955.3U Active CN212079710U (en) | 2020-05-12 | 2020-05-12 | Combined energy-saving axial flow fan with split type flow guide shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118499261A (en) * | 2024-07-12 | 2024-08-16 | 续新技术(深圳)集团有限公司 | Blowing device |
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2020
- 2020-05-12 CN CN202020774955.3U patent/CN212079710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118499261A (en) * | 2024-07-12 | 2024-08-16 | 续新技术(深圳)集团有限公司 | Blowing device |
| CN118499261B (en) * | 2024-07-12 | 2024-10-15 | 续新技术(深圳)集团有限公司 | Blowing device |
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