CN220910023U - Leakage-proof fan for bladeless fan - Google Patents
Leakage-proof fan for bladeless fan Download PDFInfo
- Publication number
- CN220910023U CN220910023U CN202322554055.4U CN202322554055U CN220910023U CN 220910023 U CN220910023 U CN 220910023U CN 202322554055 U CN202322554055 U CN 202322554055U CN 220910023 U CN220910023 U CN 220910023U
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- fan
- air
- air outlet
- leakage
- impeller
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- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000002265 prevention Effects 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Abstract
The utility model discloses a leakage-proof fan for a bladeless fan, which comprises a shell, wherein an air inlet and an air outlet are respectively arranged on the shell, a mounting space and an air outlet channel are arranged in the shell, the mounting space is respectively communicated with the air inlet and the air outlet channel, and the air outlet channel is communicated with the air outlet; a fan main body is arranged in the installation space, an avoidance gap is formed between the outer wall of an impeller of the fan main body and the inner wall of the shell, and a leakage-proof structure for preventing the installation space or an air outlet channel or external wind from entering the avoidance gap is arranged between the impeller and the inner wall of the shell; the utility model can prevent the installation space or the air outlet channel or external air from entering the avoidance gap through the anti-leakage structure, and has the characteristics of air leakage prevention, large air outlet quantity and good air outlet effect.
Description
[ Field of technology ]
The utility model relates to a leakage-proof fan for a bladeless fan.
[ Background Art ]
The fan in the bladeless fan at present generally comprises a shell with an air inlet and an air outlet, wherein a fan main body is arranged in the shell and positioned between the air inlet and the air outlet, and the fan main body is used for sucking wind at one side of the air inlet and blowing out the wind in the air outlet channel from the air outlet.
In order to prevent interference phenomenon between the inner wall of the shell and the impeller of the fan main body, a gap is formed between the outer wall of the impeller and the inner wall of the shell so as to prevent the inner wall of the shell from interfering the rotation of the impeller, and further the impeller can be ensured to stably and smoothly rotate. However, during the working operation of the fan, the air in the air outlet channel flows back to one side of the air outlet from the gap or leaks outside the shell, so that the problem of air leakage and poor air outlet effect of the fan at the present stage is caused.
The present utility model has been made in view of the above problems.
[ utility model ]
The utility model aims to overcome the defects of the prior art and provide a leakage-proof fan for a bladeless fan, which can prevent the installation space or the air outlet channel or external air from entering the avoidance gap through the leakage-proof structure and has the characteristics of good air leakage-proof and air outlet effects.
The utility model is realized by the following technical scheme:
The utility model provides a no leaf fan is with preventing leaking fan, includes casing 1, be equipped with air intake 11 and air outlet 14 on the casing 1 respectively, be equipped with installation space 12 and air-out passageway 13 in the casing 1, installation space 12 communicates with air intake 11 and air-out passageway 13 respectively, air-out passageway 13 communicates with air outlet 14;
The installation space 12 is internally provided with a fan main body 2, an avoidance gap 3 is formed between the outer wall of an impeller 22 of the fan main body 2 and the inner wall of the shell 1, and a leakage-proof structure 4 for preventing the installation space 12 or an air outlet channel 13 or external wind from entering the avoidance gap 3 is arranged between the impeller 22 and the inner wall of the shell 1.
The leakage preventing structure 4 comprises a first blocking protrusion/groove 41 provided on the impeller 22 and a second blocking protrusion/groove 42 provided on the inner wall of the casing 1 and engaged with the first blocking protrusion/groove 41 as described above for a bladeless fan.
The first blocking protrusion/groove 41 is integrally injection molded with the impeller 22 and/or the second blocking protrusion/groove 42 is integrally injection molded with the housing 1 as a leakage-proof blower for a bladeless fan as described above.
As described above, the blower body 2 includes the outer rotor motor 21 relatively fixedly installed in the installation space 12 and the impeller 22 coupled to the motor shaft of the outer rotor motor 21, and the impeller 22 is integrally injection-molded with the motor shaft of the outer rotor motor 21.
The impeller 22 and the rotor housing 211 of the outer rotor motor 21 are integrally injection molded as a leakage-proof fan for a bladeless fan as described above.
As described above, the impeller 22 is disposed near the air inlet 11, and the outer rotor motor 21 is disposed far from the air inlet 11.
The leakage-proof fan for the bladeless fan is characterized in that the air guide assembly 5 is arranged in the air outlet channel 13 and between the fan main body 2 and the air outlet 14.
The air guiding assembly 5 comprises the mounting seat 51 relatively fixed in the air outlet channel 13, and a plurality of air guiding sheets 52 for guiding and pressurizing the air flowing through the air outlet channel 13 are distributed on the outer wall of the mounting seat 51 at intervals along the circumferential direction.
The inner wall of the shell 1 is provided with a mounting clamping groove 53 for clamping and positioning the free side wall of the air guide piece 52.
The air guiding plate 52 is arranged in an arc shape, and the air guiding plate is provided with a plurality of air guiding holes.
Compared with the prior art, the utility model has the following advantages:
1. The utility model can prevent the installation space or the air outlet channel or external air from entering the avoidance gap through the anti-leakage structure, and has the characteristics of air leakage prevention, large air outlet quantity and good air outlet effect.
2. According to the utility model, the impeller, the motor shaft and the rotor shell are integrally injection molded, so that the main structure of the fan is more stable and reliable, the operation is more stable, and meanwhile, the assembly steps and the manufacturing cost can be reduced.
3. According to the utility model, the air guide assembly is arranged in the air outlet channel and positioned between the fan main body and the air outlet, so that the air flowing through the air outlet channel can be pressurized, the air speed is improved, and meanwhile, the air with stability can be guided out.
[ Description of the drawings ]
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
Fig. 1 is a perspective view of the present utility model.
FIG. 2 is a second perspective view of the present utility model.
Fig. 3 is a cross-sectional view of the present utility model.
Fig. 4 is one of the exploded views of the present utility model.
FIG. 5 is a second exploded view of the present utility model.
[ Detailed description ] of the invention
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-5, the leakage-proof fan for the bladeless fan comprises a shell 1, wherein an air inlet 11 and an air outlet 14 are respectively arranged on the shell 1, an installation space 12 and an air outlet channel 13 are arranged in the shell 1, the installation space 12 is respectively communicated with the air inlet 11 and the air outlet channel 13, and the air outlet channel 13 is communicated with the air outlet 14;
The installation space 12 is internally provided with a fan main body 2, an avoidance gap 3 is formed between the outer wall of an impeller 22 of the fan main body 2 and the inner wall of the shell 1, and a leakage-proof structure 4 for preventing the installation space 12 or an air outlet channel 13 or external wind from entering the avoidance gap 3 is arranged between the impeller 22 and the inner wall of the shell 1. The utility model can prevent the installation space or the air outlet channel or external air from entering the avoidance gap through the anti-leakage structure, and has the characteristics of air leakage prevention, large air outlet quantity and good air outlet effect.
As shown in fig. 1 and 3, in order to improve air intake efficiency, an air guiding/guiding cambered surface extending downward in a folded manner is disposed at the air intake 11, and an upper opening of the avoidance gap 3 is located inside the air guiding/guiding cambered surface.
As shown in fig. 3 to 5, the leakage preventing structure 4 includes a first blocking protrusion/groove 41 provided on the impeller 22 and a second blocking protrusion/groove 42 provided on the inner wall of the casing 1 and engaged with the first blocking protrusion/groove 41, for better preventing the leakage of air. In the present embodiment, the first blocking protrusion/groove 41 and the second blocking protrusion/groove 42 are each provided in an annular structure. As shown in fig. 3, the outer diameter of the first blocking protrusion is smaller than the inner diameter of the second blocking groove, and accordingly, the inner diameter of the first blocking groove is larger than the outer diameter of the second blocking protrusion, so that the contact of the first blocking protrusion and the second blocking protrusion can be avoided to influence the rotation of the impeller under the condition of reducing air leakage.
In order to increase the structural stability and reduce the manufacturing costs, the first blocking projection/recess 41 is injection molded integrally with the impeller 22 and/or the second blocking recess/projection 42 is injection molded integrally with the housing 1.
In order to make the fan main body structure more stable and reliable, the operation more stable, and in order to reduce the assembly steps and reduce the manufacturing cost, the fan main body 2 comprises an outer rotor motor 21 relatively fixedly arranged in the installation space 12 and an impeller 22 connected on the motor shaft of the outer rotor motor 21 in a co-moving way, the impeller 22 and the motor shaft of the outer rotor motor 21 are integrally injection molded, and the impeller 22 and a rotor housing 211 of the outer rotor motor 21 are integrally injection molded.
As shown in fig. 3, the impeller 22 is disposed near the air inlet 11, and the outer rotor motor 21 is disposed far away from the air inlet 11, so as to achieve a heat dissipation effect on the outer rotor motor and prevent dust from staying on the outer rotor motor to affect the operation performance of the outer rotor motor.
As shown in fig. 2-5, the air guiding component 5 is disposed between the fan main body 2 and the air outlet 14 in the air outlet channel 13, so as to boost the air flowing through the air outlet channel, increase the air speed, and meanwhile, guide out the air with stability.
As shown in fig. 2-5, the air guiding assembly 5 includes a mounting seat 51 relatively and fixedly disposed in the air outlet channel 13, and a plurality of air guiding fins 52 for guiding and pressurizing air flowing through the air outlet channel 13 are distributed on the outer wall of the mounting seat 51 at intervals along the circumferential direction.
As shown in fig. 1-5, a mounting ring is relatively fixedly connected to the housing 1, and an outer side wall (free end wall) of each air guiding piece is relatively fixedly connected to an inner wall of the mounting ring. Or the mounting seat, the air guide piece and the mounting ring are integrally injection molded, so that the stability and the mechanical strength of the integral structure of the air guide assembly are improved.
As shown in fig. 2-4, in order to make the air guiding plate more stable and reliable relative to the housing, the inner wall of the housing 1 is provided with a mounting slot 53 for the free side wall of the air guiding plate 52 to be clamped and positioned.
As shown in fig. 2 and 5, in order to improve the air guiding effect, the air guiding plate 52 is disposed in an arc shape, and preferably, the air guiding plate 52 is disposed in an arc shape.
Claims (10)
1. The leakage-proof fan for the bladeless fan is characterized by comprising a shell (1), wherein an air inlet (11) and an air outlet (14) are respectively arranged on the shell (1), an installation space (12) and an air outlet channel (13) are arranged in the shell (1), the installation space (12) is respectively communicated with the air inlet (11) and the air outlet channel (13), and the air outlet channel (13) is communicated with the air outlet (14);
Be equipped with fan main part (2) in installation space (12), be formed with between impeller (22) outer wall of fan main part (2) and casing (1) inner wall and dodge clearance (3), be equipped with between impeller (22) and casing (1) inner wall and be used for preventing installation space (12) or air-out passageway (13) or outside wind entering and dodge leak protection structure (4) of clearance (3).
2. A bladeless fan leakage prevention device according to claim 1, characterized in that the leakage prevention structure (4) comprises a first blocking protrusion/groove (41) provided on the impeller (22) and a second blocking groove/protrusion (42) provided on the inner wall of the housing (1) and cooperating with the first blocking protrusion/groove (41).
3. A leakage-proof fan for bladeless fans according to claim 2, characterized in that the first blocking protrusion/recess (41) is injection molded integrally with the impeller (22) and/or the second blocking recess/protrusion (42) is injection molded integrally with the housing (1).
4. The leakage-proof fan for a bladeless fan according to claim 1, wherein the fan main body (2) comprises an outer rotor motor (21) relatively fixedly arranged in the installation space (12) and an impeller (22) connected to a motor shaft of the outer rotor motor (21) in a same way, and the impeller (22) and the motor shaft of the outer rotor motor (21) are integrally injection molded.
5. The leakage-proof fan for a bladeless fan according to claim 4, characterized in that the impeller (22) is injection molded integrally with the rotor housing (211) of the outer rotor motor (21).
6. The leakage-proof fan for a bladeless fan according to claim 4, wherein the impeller (22) is arranged at a side close to the air inlet (11), and the outer rotor motor (21) is arranged at a side far away from the air inlet (11).
7. A bladeless fan according to any of claims 1-6, characterized in that an air guiding assembly (5) is arranged in the air outlet channel (13) between the fan body (2) and the air outlet (14).
8. The leakage-proof fan for a bladeless fan according to claim 7, wherein the air guiding assembly (5) comprises a mounting seat (51) relatively fixedly arranged in the air outlet channel (13), and a plurality of air guiding sheets (52) for guiding and pressurizing air flowing through the air outlet channel (13) are distributed on the outer wall of the mounting seat (51) at intervals along the circumferential direction.
9. The leakage-proof fan for a bladeless fan according to claim 8, wherein the inner wall of the housing (1) is provided with a mounting clamping groove (53) for clamping and positioning the free side wall of the air guiding piece (52).
10. The leakage-proof blower for bladeless fan of claim 8, wherein said air guiding fin (52) is arcuate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322554055.4U CN220910023U (en) | 2023-09-19 | 2023-09-19 | Leakage-proof fan for bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322554055.4U CN220910023U (en) | 2023-09-19 | 2023-09-19 | Leakage-proof fan for bladeless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220910023U true CN220910023U (en) | 2024-05-07 |
Family
ID=90916812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322554055.4U Active CN220910023U (en) | 2023-09-19 | 2023-09-19 | Leakage-proof fan for bladeless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220910023U (en) |
-
2023
- 2023-09-19 CN CN202322554055.4U patent/CN220910023U/en active Active
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