CN212868018U - Fan blade, fan assembly and air conditioner - Google Patents
Fan blade, fan assembly and air conditioner Download PDFInfo
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- CN212868018U CN212868018U CN202021456140.7U CN202021456140U CN212868018U CN 212868018 U CN212868018 U CN 212868018U CN 202021456140 U CN202021456140 U CN 202021456140U CN 212868018 U CN212868018 U CN 212868018U
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Abstract
The application provides a fan blade, fan subassembly and air conditioner. The fan blade comprises a fan blade body; the air outlet edge of the fan blade body comprises a straight line segment and an arc segment, one end of the straight line segment is in transitional connection with an arc fillet at the edge of the fan blade body, and the other end of the straight line segment is connected with the arc segment. The molded lines on the air outlet edge of the fan blade body are improved, so that the wake vortex impact of adjacent blades can be reduced, and the air quantity is increased.
Description
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to a fan blade, a fan assembly and an air conditioner.
Background
With the improvement of life quality, the air conditioner has become one of the essential household appliances for people. However, the traditional household air conditioner outdoor unit is mostly designed with a single fan blade, so that the problems of low air volume, uneven air inlet and the like exist, the heat exchange efficiency of the condenser and the electric appliance box is low, the heat exchange efficiency can be improved through increasing the rotating speed, the noise is also increased, and the motor is burnt even when the household air conditioner outdoor unit runs for a long time.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem that this application will be solved lies in providing a fan blade, fan subassembly and air conditioner, can promote the amount of wind.
In order to solve the above problem, the present application provides a fan blade, including:
the fan blade body;
the air outlet edge of the fan blade body comprises a straight line segment and an arc segment, one end of the straight line segment is in transitional connection with an arc fillet at the edge of the fan blade body, and the other end of the straight line segment is connected with the arc segment.
Preferably, the straight line segment comprises a first straight line segment and a second straight line segment which are adjacently arranged, the first straight line segment is connected with the edge arc line, and the included angle between the first straight line segment and the second straight line segment is 150-170 degrees.
Preferably, the length ratio of the first straight line segment to the second straight line segment to the arc segment is 1-1.5: 2-2.5: 5-5.5.
Preferably, the central angle of the arc segment is 20-32 °.
According to another aspect of the present application, there is provided a fan assembly comprising a fan blade assembly using the fan blade as described above.
Preferably, the fan blade assemblies are arranged in two groups, and the two groups of fan blade assemblies are coaxially arranged.
Preferably, the rotation radius ratio of the two fan blade assemblies is 1/5-1/2: 1.
Preferably, the fan blade assembly with a small rotation radius is located on the air suction side of the fan assembly, and the other fan blade assembly is located on the air blowing side of the fan assembly.
Preferably, the fan blade assembly comprises a rotary support, and the fan blade is fixed on the rotary support through a damping gasket.
Preferably, the fan assembly further comprises a motor, one set of the fan blade assembly is arranged at one end of a rotating shaft of the motor, and the other set of the fan blade assembly is arranged at the other end of the rotating shaft of the motor.
According to a further aspect of the present application, there is provided an air conditioner including a fan blade assembly using the fan blade as described above or the fan assembly as described above.
The application provides a fan blade includes: the fan blade body; the air outlet edge of the fan blade body comprises a straight line segment and an arc segment, one end of the straight line segment is in transitional connection with an arc fillet at the edge of the fan blade body, and the other end of the straight line segment is connected with the arc segment. The molded lines on the air outlet edge of the fan blade body are improved, so that the wake vortex impact of adjacent blades can be reduced, and the air quantity is increased.
Drawings
Fig. 1 is a schematic structural diagram of a fan blade according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a conventional fan blade;
fig. 3 is a noise comparison diagram of a fan blade according to an embodiment of the present application and the conventional fan blade shown in fig. 2;
FIG. 4 is a schematic structural diagram of a fan assembly according to an embodiment of the present disclosure;
fig. 5 is a schematic view of a partial structure of an outdoor unit of an air conditioner according to an embodiment of the present application.
The reference numerals are represented as:
1. a fan blade; 11. an edge arc; 12. air outlet edge; 121. a first straight line segment; 122. a second straight line segment; 123. an arc segment; 2. a first fan blade assembly; 3. a second fan blade assembly; 4. a motor; 41. a motor bracket; 5. a heat exchanger.
Detailed Description
Referring to fig. 1 to 5 in combination, according to an embodiment of the present application, a fan blade 1 includes:
a fan blade 1 body;
the air outlet edge 12 of the fan blade 1 body comprises a straight line segment and an arc segment 123, one end of the straight line segment is in transition connection with a rounded corner of an arc 11 at the edge of the fan blade 1 body, and the other end of the straight line segment is connected with the arc segment 123.
By improving the molded line constitution of the air outlet edge 12 of the fan blade 1 body, the wake vortex impact of adjacent blades can be reduced, and the air quantity is further improved.
In some embodiments, the straight line segment includes a first straight line segment 121 and a second straight line segment 122 which are adjacently arranged, the first straight line segment 121 is connected with the edge arc 11, and the included angle between the first straight line segment 121 and the second straight line segment 122 is 150-170 °.
Optionally, the length ratio of the first straight line segment 121 to the second straight line segment 122 to the arc segment 123 is 1-1.5: 2-2.5: 5-5.5.
Optionally, the central angle of the arc segment 123 is 20 ° to 32 °.
The air outlet edge 12 of the fan blade 1 adopts the specific molded line structure, so that the wake vortex impact of adjacent blades can be reduced, and the noise reduction effect under the same air volume condition is realized.
Based on the above fan blade structure, with the traditional fan blade as shown in fig. 2, the air volume and noise are detected under the condition of the same rotating speed, and the results are shown in the following table:
referring to the noise comparison chart shown in fig. 3, it can be seen that: under the condition of the same rotating speed, the wind quantity can be greatly increased by adopting the fan blade 1, and is increased by 16-20% compared with the wind quantity; the noise is not increased greatly, and is only increased by about 3 percent compared with the noise.
According to another embodiment of the present application, a fan assembly is provided, which comprises a fan blade assembly using the fan blade 1 as described above.
The fan blade component using the fan blade 1 can greatly increase the air quantity without causing larger noise.
In some embodiments, there are two sets of fan blade assemblies, and the two sets of fan blade assemblies are arranged coaxially.
Through two coaxial fan blade assemblies: first flabellum subassembly 2 and second flabellum subassembly 3, first flabellum subassembly 2 drainage air to second flabellum subassembly 3, further increase the amount of wind.
In some embodiments, the ratio of the radii of rotation of the two sets of fan blade assemblies is 1/5-1/2: 1. Especially, the fan blade assembly with a small rotating radius is positioned on the air suction side of the fan assembly, and the other fan blade assembly is positioned on the air blowing side of the fan assembly.
The fan blade assembly with the small rotating radius plays a role in air induction, and the air flow for drainage is directly sent to the fan blade assembly with the large rotating radius, so that the air quantity can be greatly improved.
In some embodiments, the fan blade assembly comprises a rotating support, and the fan blade 1 is fixed on the rotating support through a damping gasket.
Usually, the blades are fixed on a rotary bracket of a fan blade assembly, and in order to reduce noise, the fan blade 1 is fixed with the rotary bracket through a damping gasket; wherein the shock-absorbing pad is made of rubber.
In some embodiments, the fan assembly further includes a motor 4, one set of the fan blade assemblies is disposed at one end of a rotating shaft of the motor 4, and the other set of the fan blade assemblies is disposed at the other end of the rotating shaft of the motor 4.
Set up fan blade assembly at motor 4's both ends, the equilibrium is good with stability, and fan blade assembly's drainage effect can cool down increase of service life to motor 4 simultaneously.
In the fan assembly with the double-stage fan blade assembly, the blade profiles of the first fan blade assembly 2 and the second fan blade assembly 3 can be the same; when the volume of the air cavity is limited and the thickness of the fan blades is larger, the fan blades with different thicknesses can be selected to form a two-stage system; the design of the two-stage fan blades improves the air quantity, simultaneously effectively relieves the problem of poor heat dissipation of the motor 4, reduces the temperature rise rate of the motor 4 and enhances the reliability of the motor 4.
According to a further aspect of the present application, there is provided an air conditioner comprising a fan blade assembly using the fan blade 1 as described above or a fan assembly as described above.
The air conditioner using the fan blade assembly or the fan assembly is particularly used for an outdoor unit part, the air quantity passing through the heat exchanger 5 can be greatly improved, the heat exchange efficiency of the heat exchanger 5 and an electric appliance box is enhanced, and the problem of poor heat dissipation is solved.
As shown in fig. 5, the specific structure of the outdoor unit of the air conditioner mainly includes a heat exchanger 5, a first fan blade assembly 2, a second fan blade assembly 3, and a motor 4, wherein the motor 4 is fixed by a motor 4 bracket, and the shaft of the motor 4 is exposed out of two sides of the motor 4. The first fan blade component 2 is arranged at one end of the shaft of the motor 4 close to the heat exchanger 5, and the second fan blade component 3 is arranged at the other end of the shaft of the motor 4.
When the motor 4 is started, outdoor air passes through the heat exchanger 5 to enter the air cavity and reaches the second fan blade assembly 3 under the drainage action of the first fan blade assembly 2, at the moment, the double-stage fan blade design increases the outside head-on air speed of the heat exchanger 5, so that the air intake is increased, the heat exchange capacity of the heat exchanger 5 can be improved in unit time, and the heat dissipation capacity of the motor 4 is improved.
In addition, the electrical box in the outdoor unit is vertically hung on the middle partition plate, the heat productivity of the electrical box is large during operation, and the heat is mainly transferred to the outer air cavity through the heat conduction effect of the radiating fins on the electrical box, so that the design of the two-stage fan blades increases the air quantity and the air speed and simultaneously enhances the heat convection effect of the radiating fins of the electrical box.
The specific working process of the fan assembly in the outdoor unit is as follows: outdoor air passes heat exchanger 5 and gets into the wind chamber and reachs second flabellum subassembly 3 under first flabellum subassembly 2 drainage effect, wherein new blade can reduce the wake vortex of adjacent blade and assault, and then the noise reduction, less first flabellum subassembly 2 plays the water conservancy diversion effect this moment, increase 5 head-on wind speeds of heat exchanger, constitute doublestage axial fan simultaneously with second flabellum subassembly 3, increase the amount of wind under with the rotational speed, improve 5 heat exchange efficiency of heat exchanger, can also strengthen electrical apparatus box fin convection heat transfer coefficient, alleviate 4 bad problems of heat dissipation of motor simultaneously, strengthen 4 reliability of motor.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (11)
1. A fan blade (1), characterized by comprising:
the fan blade (1) body;
the air outlet edge (12) of the fan blade (1) body comprises a straight line section and an arc section (123), one end of the straight line section is in transition connection with a fillet of an arc line (11) at the edge of the fan blade (1) body, and the other end of the straight line section is connected with the arc section (123).
2. The fan blade (1) according to claim 1, wherein the straight line segment comprises a first straight line segment (121) and a second straight line segment (122) which are adjacently arranged, the first straight line segment (121) is connected with the edge arc (11), and an included angle between the first straight line segment (121) and the second straight line segment (122) is 150-170 degrees.
3. The fan blade (1) according to claim 2, wherein the first straight line segment (121), the second straight line segment (122) and the arc segment (123) have a length ratio of 1 to 1.5: 2.5: 5 to 5.5.
4. The fan blade according to claim 1, 2 or 3, wherein the central angle of the arc segment (123) is 20-32 °.
5. A fan assembly, characterized in that it comprises a fan blade assembly using a fan blade (1) according to any one of claims 1 to 4.
6. The fan assembly of claim 5 wherein there are two sets of fan blade assemblies, the two sets of fan blade assemblies being coaxially disposed.
7. The fan assembly of claim 6, wherein the ratio of the radii of rotation of the two sets of fan blade assemblies is 1/5-1/2: 1.
8. The fan assembly of claim 7 wherein the fan blade assembly having the smaller radius of rotation is located on a suction side of the fan assembly and the other fan blade assembly is located on a blowing side of the fan assembly.
9. The fan assembly according to claim 5, wherein the fan blade assembly comprises a rotating bracket, and the fan blade (1) is fixed on the rotating bracket through a damping gasket.
10. The fan assembly according to claim 6, further comprising a motor (4), wherein one set of the fan blade assemblies is disposed at one end of a rotating shaft of the motor (4), and the other set of the fan blade assemblies is disposed at the other end of the rotating shaft of the motor (4).
11. An air conditioner, characterized in that it comprises a fan blade assembly using a fan blade (1) according to any one of claims 1 to 4 or a fan assembly according to any one of claims 5 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021456140.7U CN212868018U (en) | 2020-07-22 | 2020-07-22 | Fan blade, fan assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021456140.7U CN212868018U (en) | 2020-07-22 | 2020-07-22 | Fan blade, fan assembly and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN212868018U true CN212868018U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021456140.7U Active CN212868018U (en) | 2020-07-22 | 2020-07-22 | Fan blade, fan assembly and air conditioner |
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| CN (1) | CN212868018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526252A (en) * | 2022-02-22 | 2022-05-24 | 宁波公牛生活电器有限公司 | Fan blade, fan and invisible fan lamp |
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2020
- 2020-07-22 CN CN202021456140.7U patent/CN212868018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526252A (en) * | 2022-02-22 | 2022-05-24 | 宁波公牛生活电器有限公司 | Fan blade, fan and invisible fan lamp |
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