CN111878456A - Cross-flow fan blade for integrated ceiling fresh air system - Google Patents
Cross-flow fan blade for integrated ceiling fresh air system Download PDFInfo
- Publication number
- CN111878456A CN111878456A CN202010514244.7A CN202010514244A CN111878456A CN 111878456 A CN111878456 A CN 111878456A CN 202010514244 A CN202010514244 A CN 202010514244A CN 111878456 A CN111878456 A CN 111878456A
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- Prior art keywords
- blade
- blades
- flow fan
- adjusting
- reinforcing ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a cross-flow fan blade for an integrated ceiling fresh air system, which comprises a first middle section, a plurality of second middle sections and a first reinforcing ring, wherein the lower side of the second reinforcing ring is provided with a plurality of upper blades, each second middle section comprises a middle disc and a lower blade, the upper blades and the lower blades are the same, the upper side of the middle disc is provided with a plurality of blade grooves, the lower side of the middle disc is provided with a plurality of lower blades, the lower ends of the lower blades are provided with blade strips, the lower blades comprise inner side ends, middle ends and outer side ends, the thicknesses of the inner side ends, the middle ends and the outer side ends are different, the lower sides of the first middle disc and the second middle disc are also provided with a plurality of blade groups, the blade groups are provided with a plurality of lower blades, and the thicknesses of the lower blades in the blade groups are different. The cross-flow fan blade for the integrated ceiling fresh air system can prolong the service life of the cross-flow fan blade, reduce the use cost and reduce the noise to a certain degree.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a cross-flow fan blade for an integrated ceiling fresh air system.
Background
The cross-flow fan blade is widely applied to air conditioners, integrated ceiling fresh air systems and the like due to the characteristics of large air outlet and the like. The cross-flow fan blade generally comprises a wheel disc and a plurality of blades which are integrally formed by injection molding, wherein one end of each blade is connected with the back of the wheel disc into a whole. The conventional cross-flow fan blade is generally manufactured integrally, and if part of the cross-flow fan blade is damaged, the whole cross-flow fan blade needs to be replaced, so that the use cost is improved, and the service life of the cross-flow fan blade is also shortened; and air conditioner or integrated furred ceiling new trend system often have certain noise when opening, and the production of these noises often has close relation with the through-flow fan blade.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the cross-flow fan blade for the integrated ceiling fresh air system, which can prolong the service life of the cross-flow fan blade, reduce the use cost and reduce the noise to a certain extent.
In order to achieve the purpose, the invention provides a cross-flow fan blade for an integrated ceiling fresh air system, which comprises a first middle section, a plurality of second middle sections and a first reinforcing ring, wherein the first middle section comprises a second reinforcing ring and upper blades, a first hub is arranged in the second reinforcing ring, a bearing is arranged on the first hub, a plurality of upper blades are arranged on the lower side of the second reinforcing ring, the second reinforcing ring and the upper blades are integrally formed, the second middle section comprises a middle disc and lower blades, the upper blades and the lower blades are identical, a plurality of blade grooves are arranged on the upper side of the middle disc, a plurality of lower blades are arranged on the lower side of the middle disc, the lower blades and the middle disc are integrally formed through injection molding, blade strips are arranged at the lower ends of the lower blades and are mutually clamped with the blade grooves, the lower blades comprise inner side ends, middle ends and outer side ends, the inner side ends, the outer side ends, The thickness of middle-end and outside end is all inequality, the downside of dish still is equipped with a plurality of blading in first well dish and the second, the blading is equipped with blade under a plurality of, the thickness of blade is different down in the blading, and the lower extreme that is located festival in the second of bottommost is equipped with first reinforcing ring, be equipped with second wheel hub on the first reinforcing ring, be equipped with the axle sleeve subassembly on the second wheel hub.
Preferably, the lower blade and the blade strip are both in an airfoil shape, a bulge, a wedge block and an adjusting piece are arranged in the blade groove, the bulge is arranged on the periphery of the inner wall of the blade groove, a plurality of wedge blocks are arranged below the bulge, the wedge blocks are fixed on the inner wall of the blade groove and are elastic wedge blocks, and the adjusting piece is fixed through the bulge.
Preferably, the adjusting part comprises an adjusting cap, an adjusting neck and an adjusting tail, the adjusting cap is located above the blade groove, the outer wall of the adjusting neck is attached to the inner wall of the protrusion, the adjusting tail is located below the protrusion, and the width of the adjusting tail is larger than that of the adjusting neck.
Preferably, the number of the blade group is 8-10, and the number of the lower blades in the blade group is 3-4.
Preferably, the number of the blade groups is 10, the number of the lower blades in each blade group is 3, the areas of the inner side end, the middle end and the outer side end are the same, the thickest position of the lower blade in each blade group is the inner side end of the first lower blade, the middle end of the second lower blade and the outer side end of the third lower blade in sequence, and the thinnest position of the lower blade in each blade group is the outer side end of the first lower blade, the inner side end of the second lower blade and the middle end of the third lower blade in sequence.
The invention has the beneficial effects that: according to the invention, the plurality of middle sections are arranged, the middle disc is arranged on the upper side of each middle section, the blade grooves are formed in the middle disc, the blades are arranged on the lower side of each middle section, the blade strips are arranged at the lower ends of the blades and inserted into the blade grooves, so that the assembly and disassembly are convenient, the components can be replaced without integral replacement, the service life is prolonged, and the use cost is reduced; the blades comprise inner side ends, middle ends and outer side ends, the thicknesses of the inner side ends, the middle ends and the outer side ends are different, the thicknesses of the blades in the blade group are regularly arranged, the internal flowing condition of the blade channel is effectively improved, and the noise is effectively reduced under the same air quantity.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a perspective view of a cross-flow fan blade for an integrated ceiling fresh air system according to the present invention;
FIG. 2 is a perspective view of a second middle section of the present invention;
FIG. 3 is a schematic view showing the structure of a vane groove of the present invention.
In the figure: 1-first middle section, 2-second middle section, 3-first reinforcing ring, 11-second reinforcing ring, 12-first hub, 13-bearing, 14-upper blade, 21-middle disk, 22-lower blade, 23-blade strip, 24-blade group, 41-bulge, 42-wedge block, 43-adjusting piece, 221-inner side end, 222-middle end, 223-outer side end, 431-adjusting cap, 432-adjusting neck, 433-adjusting tail.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 3, the invention provides a cross-flow fan blade for an integrated ceiling fresh air system, which comprises a first middle section 1, a plurality of second middle sections 2 and a first reinforcing ring 3, wherein the first middle section 1 comprises a second reinforcing ring 11 and upper blades 14, a first hub 12 is arranged in the second reinforcing ring 11, a bearing 13 is arranged on the first hub 12, a plurality of upper blades 14 are arranged on the lower side of the second reinforcing ring 11, the second reinforcing ring 11 and the upper blades 14 are integrally formed, the second middle section 2 comprises a middle disc 21 and lower blades 22, the upper blades 14 and the lower blades 22 are identical, a plurality of blade grooves 4 are arranged on the upper side of the middle disc 21, a plurality of lower blades 22 are arranged on the lower side of the middle disc 21, the lower blades 22 are integrally formed with the middle disc 21 through injection molding, blade strips 23 are arranged at the lower end of the lower blades 22, and the blade strips 23 are mutually clamped with the blade grooves 4, the lower blade 22 comprises an inner side end 221, a middle end 222 and an outer side end 223, the thicknesses of the inner side end 221, the middle end 222 and the outer side end 223 are different, the lower sides of the first middle disc 21 and the second middle disc 21 are further provided with a plurality of blade groups 24, each blade group 24 is provided with a plurality of lower blades 22, the thicknesses of the lower blades 22 in the blade groups 24 are different, the lower end of the second middle section 2 located at the bottom is provided with a first reinforcing ring 3, the first reinforcing ring 3 is provided with a second hub, the second hub is provided with a shaft sleeve assembly, the lower blades 22 and the blade strips 23 are both wing-shaped, a protrusion 41, a wedge block 42 and an adjusting piece 43 are arranged in the blade groove 4, the protrusion 41 is arranged on the inner wall of the blade groove 4 in a circle, a plurality of wedge blocks 42 are arranged below the protrusion 41, the wedge blocks 42 are fixed on the inner wall of the blade groove 4, and the wedge blocks 42 are elastic wedge blocks, the adjusting member 43 is fixed by the protrusion 41, the adjusting member 43 includes an adjusting cap 431, an adjusting neck 432 and an adjusting tail 433, the adjusting cap 431 is located above the blade groove 4, the outer wall of the adjusting neck 432 is attached to the inner wall of the protrusion 41, the adjusting tail 433 is located below the protrusion 41, the width of the adjusting tail 433 is greater than that of the adjusting neck 432, the number of the blade groups 24 is 8-10, the number of the lower blades 22 in the blade group 24 is 3-4, the number of the blade groups 24 is 10, the number of the lower blades 22 in the blade group 24 is 3, the areas of the inner side end 221, the middle end 222 and the outer side end 223 are the same, and the thickest position of the lower blade 22 in each blade group 24 is the inner side end 221 of the first lower blade 22, the middle end 222 of the second lower blade 22 and the outer side end 223 of the third lower blade 22 in turn, the thinnest position of the lower blade 22 in each blade group 24 is, in order, the outboard end 223 of the first lower blade 22, the inboard end 221 of the second lower blade 22, and the middle end 222 of the third lower blade 22.
By adopting the technical scheme, when the middle sections need to be connected, the upper blade strips 23 are inserted into the lower blade grooves 4, the arrangement of the wedge blocks 42 increases the connection stability of the blade strips 3 and the blade grooves 4, the blade is detachable, the adjusting pieces 43 are pressed downwards to shrink the wedge blocks 42 towards the inner wall direction of the blade grooves 4, and the blade strips 23 are pulled out, so that the blade is convenient to install and detach, can replace parts without integral replacement, prolongs the service life and reduces the use cost; the blades comprise an inner side end 221, a middle end 222 and an outer side end 223, the areas of the inner side end 221, the middle end 222 and the outer side end 223 are the same, the thicknesses of the inner side end 221, the middle end 222 and the outer side end 223 are different, the thicknesses of the blades in the blade group 24 are regularly arranged, the flowing condition in a blade path of the fan blade is effectively improved, and noise is effectively reduced under the condition of the same air quantity.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides an integrated furred ceiling new trend cross-flow fan blade for system which characterized in that: comprises a first middle section (1), a plurality of second middle sections (2) and a first reinforcing ring (3), wherein the first middle section (1) comprises a second reinforcing ring (11) and upper blades (14), a first hub (12) is arranged in the second reinforcing ring (11), a bearing (13) is arranged on the first hub (12), a plurality of upper blades (14) are arranged on the lower side of the second reinforcing ring (11), the second reinforcing ring (11) and the upper blades (14) are integrally formed, the second middle section (2) comprises a middle disc (21) and lower blades (22), the upper blades (14) and the lower blades (22) are identical, a plurality of blade grooves (4) are arranged on the upper side of the middle disc (21), a plurality of lower blades (22) are arranged on the lower side of the middle disc (21), the lower blades (22) are integrally formed with the middle disc (21) through injection molding, and blade strips (23) are arranged at the lower ends of the lower blades (22), blade strip (23) and blade groove (4) joint each other, lower blade (22) include medial extremity (221), middle end (222) and outside end (223), the thickness of medial extremity (221), middle end (222) and outside end (223) is all inequality, the downside of dish (21) in first well dish (21) and the second still is equipped with a plurality of blading (24), blading (24) are equipped with blade (22) under a plurality of, the thickness of blade (22) is different in blading (24), and the lower extreme that is located section (2) in the second below is equipped with first reinforcing ring (3), be equipped with second wheel hub on first reinforcing ring (3), be equipped with the axle sleeve subassembly on the second wheel hub.
2. The cross-flow fan blade for the integrated ceiling fresh air system as claimed in claim 1, wherein: lower blade (22) and blade strip (23) are the airfoil, be equipped with arch (41), wedge (42) and regulating part (43) in blade groove (4), blade groove (4) inner wall a week is equipped with arch (41), the below of arch (41) is equipped with a plurality of wedge (42), wedge (42) are fixed at blade groove (4) inner wall, wedge (42) are the elasticity wedge, regulating part (43) are fixed through arch (41).
3. The cross-flow fan blade for the integrated ceiling fresh air system as claimed in claim 2, wherein: the adjusting part (43) comprises an adjusting cap (431), an adjusting neck (432) and an adjusting tail (433), the adjusting cap (431) is located above the vane slot (4), the outer wall of the adjusting neck (432) is attached to the inner wall of the bulge (41), the adjusting tail (433) is located below the bulge (41), and the width of the adjusting tail (433) is larger than that of the adjusting neck (432).
4. The cross-flow fan blade for the integrated ceiling fresh air system as claimed in claim 1, wherein: the number of the blade group (24) is 8-10, and the number of the lower blades (22) in the blade group (24) is 3-4.
5. The cross-flow fan blade for the integrated ceiling fresh air system as claimed in claim 1, wherein: the number of the blade groups (24) is 10, the number of the lower blades (22) in each blade group (24) is 3, the areas of the inner side end (221), the middle end (222) and the outer side end (223) are the same, the thickest positions of the lower blades (22) in each blade group (24) are the inner side end (221) of the first lower blade (22), the middle end (222) of the second lower blade (22) and the outer side end (223) of the third lower blade (22) in sequence, and the thinnest positions of the lower blades (22) in each blade group (24) are the outer side end (223) of the first lower blade (22), the inner side end (221) of the second lower blade (22) and the middle end (222) of the third lower blade (22) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010514244.7A CN111878456A (en) | 2020-06-08 | 2020-06-08 | Cross-flow fan blade for integrated ceiling fresh air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010514244.7A CN111878456A (en) | 2020-06-08 | 2020-06-08 | Cross-flow fan blade for integrated ceiling fresh air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111878456A true CN111878456A (en) | 2020-11-03 |
Family
ID=73156460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010514244.7A Pending CN111878456A (en) | 2020-06-08 | 2020-06-08 | Cross-flow fan blade for integrated ceiling fresh air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111878456A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134834A1 (en) * | 1983-09-20 | 1985-03-27 | Heidolph-Elektro GmbH & Co. KG | Cross-flow fan |
| CN201386695Y (en) * | 2009-04-13 | 2010-01-20 | 宁波朗迪叶轮机械有限公司 | Tangential impeller |
| CN201420709Y (en) * | 2009-05-25 | 2010-03-10 | 宁波朗迪叶轮机械有限公司 | Middle section of cross-flow fan blade |
| CN203730397U (en) * | 2014-03-05 | 2014-07-23 | 珠海格力电器股份有限公司 | Cross-flow fan blade and fan |
| CN105745451A (en) * | 2014-10-30 | 2016-07-06 | 京瓷办公信息系统株式会社 | Cross flow fan, electric product provided with cross flow fan, and impeller used in cross flow fan |
| CN206754008U (en) * | 2016-12-11 | 2017-12-15 | 新昌县南明街道益华机械厂 | A kind of household ventilation fan of fixation easy to disassemble |
| CN108223430A (en) * | 2017-08-23 | 2018-06-29 | 广东顺威精密塑料股份有限公司 | A kind of through-flow fan blade |
| CN210397232U (en) * | 2019-06-28 | 2020-04-24 | 宁波奥克斯电气股份有限公司 | Cross-flow fan blade and air conditioner |
| CN210397233U (en) * | 2019-07-16 | 2020-04-24 | 绍兴杭特风机有限公司 | Adjustable fan blade in inclination convenient to dismouting |
-
2020
- 2020-06-08 CN CN202010514244.7A patent/CN111878456A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134834A1 (en) * | 1983-09-20 | 1985-03-27 | Heidolph-Elektro GmbH & Co. KG | Cross-flow fan |
| CN201386695Y (en) * | 2009-04-13 | 2010-01-20 | 宁波朗迪叶轮机械有限公司 | Tangential impeller |
| CN201420709Y (en) * | 2009-05-25 | 2010-03-10 | 宁波朗迪叶轮机械有限公司 | Middle section of cross-flow fan blade |
| CN203730397U (en) * | 2014-03-05 | 2014-07-23 | 珠海格力电器股份有限公司 | Cross-flow fan blade and fan |
| CN105745451A (en) * | 2014-10-30 | 2016-07-06 | 京瓷办公信息系统株式会社 | Cross flow fan, electric product provided with cross flow fan, and impeller used in cross flow fan |
| CN206754008U (en) * | 2016-12-11 | 2017-12-15 | 新昌县南明街道益华机械厂 | A kind of household ventilation fan of fixation easy to disassemble |
| CN108223430A (en) * | 2017-08-23 | 2018-06-29 | 广东顺威精密塑料股份有限公司 | A kind of through-flow fan blade |
| CN210397232U (en) * | 2019-06-28 | 2020-04-24 | 宁波奥克斯电气股份有限公司 | Cross-flow fan blade and air conditioner |
| CN210397233U (en) * | 2019-07-16 | 2020-04-24 | 绍兴杭特风机有限公司 | Adjustable fan blade in inclination convenient to dismouting |
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