CN211144897U - Impeller and fan for ventilation treatment equipment and ventilation treatment equipment - Google Patents
Impeller and fan for ventilation treatment equipment and ventilation treatment equipment Download PDFInfo
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- CN211144897U CN211144897U CN201921825225.5U CN201921825225U CN211144897U CN 211144897 U CN211144897 U CN 211144897U CN 201921825225 U CN201921825225 U CN 201921825225U CN 211144897 U CN211144897 U CN 211144897U
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- impeller
- blades
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- fan
- wheel disc
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- 238000009423 ventilation Methods 0.000 title claims description 15
- 238000002560 therapeutic procedure Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a treatment facility field of ventilating discloses an impeller, fan and treatment facility of ventilating for ventilating treatment facility. The impeller comprises a wheel disc and a plurality of blades, the blades are arranged on the surface of one side of the wheel disc and are arranged at intervals along the circumferential direction of the wheel disc, the blades are arranged to extend from the center of the wheel disc to the edge of the wheel disc, and through holes along the thickness direction of the blades are formed in the tail ends of the blades. In the running process of the fan, the larger the rotating speed is, the more serious the axial vortex in the impeller flow channel is, so that the pressure difference on two sides of the blade is larger, the impact strength of airflow and the blade is larger, and the noise of the fan is larger. The utility model discloses a set up the through-hole at the end of blade, the through-hole can release the pressure of blade high-pressure side to the low pressure side to weaken the impact strength of air current and blade, make the noise reduction of fan.
Description
Technical Field
The utility model relates to a treatment equipment technical field of ventilating, specifically relate to an impeller for treatment equipment of ventilating, including the fan of this impeller and including the treatment equipment of ventilating of this fan.
Background
The core component of the ventilation treatment equipment is a small fan which is also a source of noise generated by the ventilation treatment equipment, and the blade structure of the fan plays a crucial role in the noise. Specifically, during the use of the fan, the fan converts other forms of energy into mechanical energy for the rotation of the impeller, and the rotating impeller can transfer the energy to the continuously flowing gas so as to realize gas transportation and energy transfer. However, the application of the fan is greatly restricted due to the high-speed pneumatic noise caused by the high-speed rotation of the impeller. Therefore, it is very important to reduce and control the noise of the fan.
At present, noise reduction for fans is based on improvements of volutes, for example, by changing different volute intervals near the volute tongue, so that the airflow reduces the resonance caused by vortex and airflow impact at different places as much as possible. However, the noise reduction effect of the mode is not obvious, and the mode only has obvious effect on a specific impeller, so that the universality is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide an impeller, including the fan of this impeller and including the treatment of ventilating equipment of this fan for ventilating treatment equipment to promote the noise reduction effect of fan through the structure of improving the impeller.
In order to achieve the above object, the present invention provides in a first aspect an impeller for a ventilation therapy apparatus, the impeller comprising a wheel disc and a plurality of blades, the plurality of blades set up in one side of the wheel disc is on the surface and along the circumference interval arrangement of the wheel disc, the blades set up to follow the center of the wheel disc extends to the edge of the wheel disc, the end of the blades is provided with an edge the through-hole of the thickness direction of the blades.
Optionally, the through hole is a square hole.
Optionally, the through hole has a length of 0.2mm to 0.5mm and a width of 0.2mm to 0.5 mm.
Optionally, the through-hole is a circular hole.
Optionally, the diameter of the through hole is 0.9mm-1.1 mm.
Optionally, the through hole is located at the center of the blade in the height direction of the blade.
Optionally, the blades twist clockwise or counterclockwise radially outward of the disk; and/or
The height of the blades gradually decreases from the center of the disk to the edge of the disk.
Optionally, the impeller includes a hub, and the hub is disposed at the center of the wheel disc and is used for connecting a rotating shaft of the motor.
A second aspect of the present invention provides a blower for ventilation therapy equipment, the blower includes a housing, a motor and an impeller, the impeller is installed in the housing with the motor, the motor is connected with the impeller to drive the impeller to rotate.
The third aspect of the present invention provides a ventilation treatment device, which comprises the blower described above.
In the running process of the fan, the larger the rotating speed is, the more serious the axial vortex in the impeller flow channel is, so that the pressure difference on two sides of the blade is larger, the impact strength of airflow and the blade is larger, and the noise of the fan is larger. The utility model discloses a set up the through-hole at the end of blade, the through-hole can release the pressure of blade high-pressure side to the low pressure side to weaken the impact strength of air current and blade, make the noise reduction of fan.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a top view of one embodiment of an impeller of the present invention;
FIG. 2 is a side view of the impeller of FIG. 1, wherein the through-hole is a square hole;
fig. 3 is a side view of the impeller of fig. 1, wherein the through-holes are circular holes.
Description of the reference numerals
1-wheel disc, 2-blade, 3-through hole and 4-wheel hub.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The utility model discloses an aspect provides an impeller for ventilating treatment equipment, the impeller includes rim plate 1 and a plurality of blade 2, a plurality of blade 2 set up in 1 one side of rim plate is on the surface and follow 1 circumference interval of rim plate is arranged, blade 2 sets up to follow 1 center of rim plate extends to 1 edge of rim plate, the end of blade 2 is provided with the edge 2's thickness direction's through-hole 3.
The utility model discloses in, the impeller is centrifugal impeller, and it can be inhaled gas from the axial of impeller, then utilizes centrifugal force to throw away gas from the circumferencial direction of impeller.
In the operation process of the fan, the larger the rotating speed is, the more serious the axial vortex in the flow channel of the impeller 2 (i.e. the area between two adjacent blades 2) is, so that the pressure difference between two sides of the blades 2 is larger, the impact strength of the airflow and the blades 2 is larger, and the noise of the fan is larger. The utility model discloses a set up through-hole 3 at the end of blade 2, through-hole 3 can release the pressure of 2 high-pressure sides of blade to the low pressure side to weaken the impact strength of air current and blade 2, make the noise reduction of fan. In addition, the noise reduction of the fan is realized by improving the structure of the impeller, so that the universality is higher.
The utility model discloses an impeller is when being applied to the fan, and the fan rotational speed is big more, and is more obvious to the noise reduction effect of fan, therefore specially adapted promotes hypervelocity centrifugal fan's noise reduction effect.
In the present invention, it should be noted that the through hole 3 may be any shape. In addition, since the presence of the through-holes 3 affects the efficiency of the blower to some extent, the size of the through-holes 3 should be as small as possible.
For example, as shown in fig. 2, the through hole 3 may be a square hole. The length of the square hole can be 0.2mm-0.5mm, and the width can be 0.2mm-0.5 mm. The square hole can be square or rectangular.
Such as the embodiment shown in fig. 3, the through-holes 3 may be circular holes. The diameter of the circular hole may be 0.9mm to 1.1 mm.
Preferably, the through hole 3 is located at the center of the blade 2 in the height direction of the blade 2. Therefore, fluid between the impeller and the fan shell can be prevented from being influenced, the increase of leakage of the blade top and the reduction of the efficiency of the impeller are avoided, the process difficulty of punching in the blade 2 can be reduced, and the manufacturing cost is reduced.
The utility model discloses in, blade 2 can set up to follow the radial outside clockwise or anticlockwise distortion of rim plate 1. In this case, the side of the blade 2 facing the twisting direction is a high pressure side, and the side opposite to the high pressure side is a low pressure side. Specifically, for example, as shown in fig. 1, the blades 2 are twisted clockwise and outward along the radial direction of the disk 1, taking the blade 2 located at the upper part of the disk 1 in fig. 1 as an example, the right side of the blade 2 is a high pressure side, and the left side of the blade 2 is a low pressure side.
The utility model discloses in, the height of blade 2 is followed the center of rim plate 1 extremely the edge of rim plate 1 can be unanimous, also can reduce gradually. As shown in fig. 2 and 3, by gradually decreasing the height of the blades 2 from the center of the disk 1 to the disk 1, more mechanical energy can be converted into static pressure, so as to achieve the design effect of large pressure and small flow of the fan.
In the utility model discloses in, as shown in fig. 1-3, the impeller still can include wheel hub 4, wheel hub 4 set up in the center of rim plate 1 is used for connecting the motor shaft.
A second aspect of the present invention provides a blower for ventilation therapy equipment, the blower includes a housing, a motor and an impeller, the impeller is installed in the housing with the motor, the motor is connected with the impeller to drive the impeller to rotate.
Wherein, the fan is centrifugal fan, and it can be used in the equipment of arbitrary needs. The impeller can be connected with a rotating shaft of the motor through a hub 7 arranged on the wheel disc 1, so that the motor can drive the impeller to rotate.
The third aspect of the present invention provides a ventilation treatment device, which comprises the blower described above.
Wherein, the ventilation treatment equipment can be a breathing machine, an oxygen therapy instrument and the like.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. The impeller for the ventilation treatment equipment is characterized by comprising a wheel disc (1) and a plurality of blades (2), wherein the blades (2) are arranged on the surface of one side of the wheel disc (1) and are arranged along the circumferential direction of the wheel disc (1) at intervals, the blades (2) are arranged to extend from the center of the wheel disc (1) to the edge of the wheel disc (1), and through holes (3) are formed in the tail ends of the blades (2) along the thickness direction of the blades (2).
2. The impeller according to claim 1, characterized in that said through hole (3) is a square hole.
3. The impeller according to claim 2, characterized in that the through-hole (3) has a length of 0.2-0.5 mm and a width of 0.2-0.5 mm.
4. The impeller according to claim 1, characterized in that the through-holes (3) are circular holes.
5. The impeller according to claim 4, characterized in that the diameter of the through-hole (3) is 0.9-1.1 mm.
6. The impeller according to claim 1, characterized in that the through hole (3) is located in the center of the blade (2) in the height direction of the blade (2).
7. The impeller according to any of the claims from 1 to 6, characterised in that the blades (2) are twisted clockwise or anticlockwise radially outwards of the disk (1); and/or
The height of the blades (2) is gradually reduced from the center of the disk (1) to the edge of the disk (1).
8. The impeller according to any of the claims 1 to 6, characterized in that it comprises a hub (4), said hub (4) being arranged in the center of said wheel disc (1) for connection to a motor shaft.
9. A blower for a ventilation therapy device, the blower comprising a housing, a motor, and an impeller according to any one of claims 1 to 8, the impeller and the motor being mounted within the housing, the motor being connected to the impeller to drive the impeller to rotate.
10. A ventilation therapy device, characterized in that it comprises a blower according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825225.5U CN211144897U (en) | 2019-10-28 | 2019-10-28 | Impeller and fan for ventilation treatment equipment and ventilation treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825225.5U CN211144897U (en) | 2019-10-28 | 2019-10-28 | Impeller and fan for ventilation treatment equipment and ventilation treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211144897U true CN211144897U (en) | 2020-07-31 |
Family
ID=71769692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921825225.5U Active CN211144897U (en) | 2019-10-28 | 2019-10-28 | Impeller and fan for ventilation treatment equipment and ventilation treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211144897U (en) |
-
2019
- 2019-10-28 CN CN201921825225.5U patent/CN211144897U/en active Active
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