CN209761858U - Fan assembly structure and centrifugal fan - Google Patents
Fan assembly structure and centrifugal fan Download PDFInfo
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- CN209761858U CN209761858U CN201920490648.XU CN201920490648U CN209761858U CN 209761858 U CN209761858 U CN 209761858U CN 201920490648 U CN201920490648 U CN 201920490648U CN 209761858 U CN209761858 U CN 209761858U
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- volute
- spiral case
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Abstract
The utility model discloses a fan assembly structure and centrifugal fan, wherein, fan assembly structure includes end spiral case, top spiral case and bottom plate, the bottom of end spiral case with bottom plate integrated into one piece, end spiral case is equipped with first positioning portion and first fastening portion, the top spiral case is equipped with second positioning portion and second fastening portion, first positioning portion with second positioning portion is pegged graft fixedly, first fastening portion with second fastening portion connects, so that the bottom of top spiral case install in the top of end spiral case, top spiral case with form the wind wheel chamber between the spiral case of end and with the air intake of wind wheel chamber intercommunication, be equipped with on the bottom plate with the air outlet of wind wheel chamber intercommunication. The utility model discloses technical scheme improves assembly efficiency.
Description
Technical Field
The utility model relates to a centrifugal fan technical field, in particular to fan assembly structure and centrifugal fan.
Background
The rail train is generally applied to daily trips of people in the existing market, wherein a common fan assembly structure on the rail train is riveted by the bottom end of a volute and a bottom plate, and the assembly process is complex and the assembly efficiency is low due to the fact that rivets at each connection position of the volute and the bottom plate are needed to be riveted one by one.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a fan assembly structure aims at improving assembly efficiency.
In order to achieve the above object, the utility model provides a fan assembly structure includes end spiral case, top spiral case and bottom plate, the bottom of end spiral case with bottom plate integrated into one piece, end spiral case is equipped with first positioning portion and first fastening portion, the top spiral case is equipped with second positioning portion and second fastening portion, first positioning portion with second positioning portion grafting is fixed, first fastening portion with second fastening portion connects, so that the bottom of top spiral case install in the top of end spiral case, top spiral case with form the wind wheel chamber between the spiral case and with the air intake of wind wheel chamber intercommunication, be equipped with on the bottom plate with the air outlet of wind wheel chamber intercommunication.
Preferably, the bottom volute is provided with a plurality of first positioning portions arranged at intervals, the top volute is provided with a plurality of second positioning portions arranged at intervals, and the plurality of first positioning portions and the plurality of second positioning portions are arranged in a one-to-one correspondence manner.
Preferably, a plurality of first protruding columns which are arranged at intervals are arranged on the inner wall of the bottom volute, the first protruding columns are the first positioning portions, and the positioning holes are formed in the first protruding columns; the second positioning part is a positioning column which is positioned on the inner wall of the top volute; after the positioning column is inserted into the positioning hole, the top volute is preassembled on the bottom volute.
Preferably, a second convex column is arranged on the outer wall of the bottom volute, the second convex column is the first fastening part, and a first screw hole is formed in the second convex column; a third convex column is arranged on the outer wall of the top volute and is the second fastening part, and a second screw hole is formed in the third convex column; and after the screws are sequentially inserted into the second screw holes and the first screw holes, the top volute is connected with the bottom volute.
Preferably, the outer wall of the bottom volute is provided with a plurality of second convex columns arranged at intervals, the outer wall of the top volute is provided with a plurality of third convex columns arranged at intervals, and the second convex columns and the third convex columns are arranged in one-to-one correspondence.
Preferably, a first assembling groove is formed in the top end face of the bottom volute, and a first assembling protrusion is formed in the bottom end face of the top volute; the first assembling bulge is clamped in the first assembling groove, and the top volute is pre-installed on the bottom volute.
the utility model also provides a centrifugal fan, include as above fan assembly structure.
The technical scheme of the utility model is that the bottom end of the bottom volute and the bottom plate are integrally formed, the bottom volute is provided with a first positioning part and a first fastening part, and the top volute is provided with a second positioning part and a second fastening part; the first positioning portion and the second positioning portion are fixedly connected in an inserting mode, the first fastening portion and the second fastening portion are connected, so that the bottom end of the top volute is installed at the top end of the bottom volute, the assembling difficulty of the top volute and the bottom volute is reduced, and the assembling efficiency of the bottom volute, the top volute and the bottom plate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a centrifugal fan of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
Fig. 3 is an exploded view of the centrifugal fan of the present invention.
the reference numbers illustrate:
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a fan assembly structure.
In the embodiment of the present invention, referring to fig. 1 to 3, this fan assembly structure includes end spiral case 10, top spiral case 20 and bottom plate 30, the bottom of end spiral case 10 with bottom plate 30 integrated into one piece, end spiral case 10 is equipped with first location portion 11 and first fastening portion 12, top spiral case 20 is equipped with second location portion 21 and second fastening portion 22, first location portion 11 with second location portion 21 pegs graft fixedly, first fastening portion 12 with second fastening portion 22 connects, so that the bottom of top spiral case 20 install in the top of end spiral case 10, top spiral case 20 with form the wind wheel chamber between the end spiral case 10 and with the air intake of wind wheel chamber intercommunication, be equipped with on the bottom plate 30 with the air outlet of wind wheel chamber intercommunication.
Specifically, the original blower volute is divided into a bottom volute 10 and a top volute 20, the top volute 20 and the bottom volute 10 are detachably connected, a blower chamber 10a and an air inlet 10b are formed in the top volute 20 and the bottom volute 10, the blower in the blower chamber 10a can be conveniently replaced, and an air outlet is formed in a bottom plate 30; the wind wheel cavity 10a is internally provided with a fan, and the air inlet 10b, the wind wheel cavity 10a and the air outlet form a communicated air channel. The bottom volute 10 and the bottom plate 30 are integrally formed, so that on one hand, the connection tightness between the volute and the bottom plate 30 can be improved, and on the other hand, the bottom volute 10 with a certain height can reduce the difficulty of limiting and pre-installing with the top volute 20; the first positioning part 11 is arranged on the bottom volute 10, the top volute 20 is provided with the second positioning part 21, when the first positioning part 11 of the top volute 20 is fixedly inserted with the second positioning part 21 of the top volute, the top volute 20 can be positioned on the bottom volute 10 in advance, and finally the first fastening part 12 of the bottom volute is connected with the second fastening part 22 of the top volute, so that the top volute 20 and the bottom volute 10 are locked, and by the arrangement, the assembly difficulty of the top volute 20 and the bottom volute 10 is reduced, and the assembly efficiency of the bottom volute 10, the top volute 20 and the bottom plate 30 is improved.
The technical scheme of the utility model is that the bottom end of the bottom volute and the bottom plate are integrally formed, the bottom volute is provided with a first positioning part 11 and a first fastening part 12, and the top volute is provided with a second positioning part 21 and a second fastening part 22; the first positioning portion 11 and the second positioning portion 21 are fixedly inserted, and the first fastening portion 12 and the second fastening portion 22 are connected, so that the bottom end of the top volute is mounted at the top end of the bottom volute.
Further, referring to fig. 1 to 3, a plurality of first positioning portions 11 are disposed on the bottom volute at intervals, a plurality of second positioning portions 21 are disposed on the top volute at intervals, and the plurality of first positioning portions 11 and the plurality of second positioning portions 21 are disposed in a one-to-one correspondence manner. In the present embodiment, a plurality of first positioning portions 11 are provided at intervals, and positioning holes 11a are provided on the first positioning portions 11; when the second positioning portions 21 are inserted into the first positioning portions 11 one by one, the force of the top volute 20 limited to the bottom volute 10 is further increased. Preferably, referring to fig. 1 to 3, a plurality of first protruding columns 11 arranged at intervals are arranged on an inner wall of the bottom scroll casing, the first protruding columns 11 are the first positioning portions 11, and the first protruding columns 11 are provided with the positioning holes 11 a; the second positioning part 21 is a positioning column, and the positioning column 21 is located on the inner wall of the top volute; after the positioning column 21 is inserted into the positioning hole 11a, the top volute is preassembled in the bottom volute.
Further, referring to fig. 1 to 3, a second boss 12 is disposed on an outer wall of the bottom volute, the second boss 12 is the first fastening portion 12, and a first screw hole 12a is disposed on the second boss 12; a third convex column 22 is arranged on the outer wall of the top volute, the third convex column 22 is the second fastening part 22, and a second screw hole 22a is formed in the third convex column 22; after the screws are sequentially inserted into the second screw holes 22a and the first screw holes 12a, the top volute is connected with the bottom volute.
In the present embodiment, screws are sequentially inserted into the second screw hole 22a of the top volute 20 and the first screw hole 12a of the bottom volute 10, thereby locking the top volute 20 and the bottom volute 10. Through the arrangement that the first screw hole 12a is arranged on the second convex column 12, the second convex column 12 is the first fastening portion 12, the second screw hole 22a is arranged on the third convex column 22, and the third convex column 22 is the second fastening portion, the shell wall thicknesses of the bottom volute 10 and the top volute 20 can be reduced, and the locking of the top volute 20 and the bottom volute 10 can be realized under the condition of saving materials.
The outer wall of the bottom volute 10 is provided with a plurality of second convex columns 12 arranged at intervals, the outer wall of the top volute 20 is provided with a plurality of third convex columns 22 arranged at intervals, and the second convex columns 12 and the third convex columns 22 are arranged in a one-to-one correspondence manner. In this embodiment, a plurality of screws sequentially penetrate through the first screw hole 12a of the second stud 12 and the second screw hole 22a of the third stud 22 one by one, so as to further improve the connection tightness between the bottom volute 10 and the top volute 20.
Further, referring to fig. 1 to 3, a top end surface of the bottom volute 10 is provided with a first assembling groove 13, and a bottom end surface of the top volute 20 is provided with a first assembling protrusion; the first assembling protrusion is clamped in the first assembling groove 13, and the top volute 20 is preassembled on the bottom volute 10.
Specifically, a first fitting groove 13 is provided on the top end surface of the bottom volute 10, and the first fitting groove 13 is provided around the entire circumference of the bottom volute 10; the bottom end surface of the top volute 20 is provided with a first assembling bulge which is also arranged around the circumference of the top volute 20; after the first assembling protrusion is clamped in the first assembling groove 13, the top volute 20 and the bottom volute 10 can be mutually limited and preassembled into a whole, and the assembling difficulty of the top volute 20 and the bottom volute 10 is further reduced.
The utility model also provides a centrifugal fan, this centrifugal fan include fan assembly structure, and this fan assembly structure's concrete structure refers to above-mentioned embodiment, because this centrifugal fan has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides a fan assembly structure, its characterized in that, includes end spiral case, top spiral case and bottom plate, the bottom of end spiral case with bottom plate integrated into one piece, end spiral case is equipped with first location portion and first fastening portion, the top spiral case is equipped with second location portion and second fastening portion, first location portion with second location portion grafting is fixed, first fastening portion with second fastening portion connects, so that the bottom of top spiral case install in the top of end spiral case, top spiral case with form the wind wheel chamber between the spiral case and with the air intake of wind wheel chamber intercommunication, be equipped with on the bottom plate with the air outlet of wind wheel chamber intercommunication.
2. The fan assembly structure according to claim 1, wherein a plurality of first positioning portions are provided on the bottom volute at intervals, a plurality of second positioning portions are provided on the top volute at intervals, and the plurality of first positioning portions and the plurality of second positioning portions are provided in one-to-one correspondence.
3. The fan assembling structure according to claim 2, wherein a plurality of first protruding columns are disposed on an inner wall of the bottom volute at intervals, the first protruding columns are the first positioning portions, and positioning holes are disposed on the first protruding columns; the second positioning part is a positioning column which is positioned on the inner wall of the top volute; after the positioning column is inserted into the positioning hole, the top volute is preassembled on the bottom volute.
4. The fan assembling structure according to claim 1, wherein a second boss is provided on an outer wall of the bottom scroll, the second boss being the first fastening portion, the second boss being provided with a first screw hole; a third convex column is arranged on the outer wall of the top volute and is the second fastening part, and a second screw hole is formed in the third convex column; and after the screws are sequentially inserted into the second screw holes and the first screw holes, the top volute is connected with the bottom volute.
5. The fan assembling structure according to claim 4, wherein the outer wall of the bottom volute is provided with a plurality of second bosses arranged at intervals, the outer wall of the top volute is provided with a plurality of third bosses arranged at intervals, and the second bosses and the third bosses are arranged in a one-to-one correspondence.
6. The blower fan assembling structure according to claim 1, wherein a top end surface of the bottom scroll casing is provided with a first assembling groove, and a bottom end surface of the top scroll casing is provided with a first assembling protrusion; the first assembling bulge is clamped in the first assembling groove, and the top volute is pre-installed on the bottom volute.
7. A centrifugal fan comprising the fan mounting structure according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920490648.XU CN209761858U (en) | 2019-04-10 | 2019-04-10 | Fan assembly structure and centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920490648.XU CN209761858U (en) | 2019-04-10 | 2019-04-10 | Fan assembly structure and centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761858U true CN209761858U (en) | 2019-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920490648.XU Active CN209761858U (en) | 2019-04-10 | 2019-04-10 | Fan assembly structure and centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209761858U (en) |
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2019
- 2019-04-10 CN CN201920490648.XU patent/CN209761858U/en active Active
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Effective date of registration: 20220316 Address after: 528200 xiangkeng (tuming) workshop 1, Zhaonan villager group, Zhaoda village, Shishan, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Yingsai Machinery Equipment Co.,Ltd. Address before: 528200 xiangkeng (tuming) workshop 1, Zhaonan villager group, Zhaoda village, Shishan, Nanhai District, Foshan City, Guangdong Province Patentee before: Foshan Yingsai Machinery Equipment Co.,Ltd. Patentee before: puka |