CN213270377U - Low-noise outer rotor direct-drive fan - Google Patents
Low-noise outer rotor direct-drive fan Download PDFInfo
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- CN213270377U CN213270377U CN202021931491.9U CN202021931491U CN213270377U CN 213270377 U CN213270377 U CN 213270377U CN 202021931491 U CN202021931491 U CN 202021931491U CN 213270377 U CN213270377 U CN 213270377U
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Abstract
The utility model discloses a low-noise external rotor direct-drive fan, which comprises a shell, a fixed plate, a cover plate and a mounting plate, wherein the shell is arranged into a cylindrical hollow structure, the upper port of the shell is fixed with the fixed plate with a circular structure through bolts, two sets of U-shaped grooves which are symmetrically arranged are arranged at the port of the lower port of the shell, the shell is connected with the cover plate through the clamping of the two sets of U-shaped grooves, two sets of acoustic panels which are symmetrically arranged are fixed on the side wall of the inner part of the shell through bolts, the mounting plate which is matched with the inner diameter of the shell is arranged in parallel in the inner part of the shell; the mounting plate is characterized in that a driving motor is fixed at the bottom end of the mounting plate through a bolt, the output end of the driving motor is fixedly connected with the bottom end of the rotating rod through a coupler, and the upper half part of the rotating rod penetrates through a through hole formed in the top end of the fixing plate. This low noise external rotor directly drives fan, simple structure, the radiating effect is good.
Description
Technical Field
The utility model belongs to the technical field of directly drive the fan, concretely relates to low noise external rotor directly drives fan.
Background
Fan refers to a tool for cooling by generating wind in hot days. An electric fan is a device which is electrically driven to generate air flow, and a fan arranged in the electric fan is electrified and then rotated into natural wind to achieve the effect of cooling
A rotor: consists of a magnet, fan blades and a shaft; a stator: comprises silicon steel sheets, coils and bearings; a control circuit, wherein the pole of the IC induction magnet N, S is controlled by the circuit to conduct the coil to generate internal excitation to rotate the rotor; types of axial flow fan and direct flow fan;
the existing rotor direct-drive fan has the advantages that when the fan is used, the fan can generate noise when working, so that the use experience of a user is influenced, and the heat energy generated by long-time working of a fan motor can influence the use performance of the fan.
Therefore, in view of the current situation, it is urgently needed to design and produce a low-noise outer rotor direct-drive fan so as to meet the requirement of practical use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low noise external rotor directly drives fan to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a low-noise outer rotor direct-drive fan comprises a shell, a fixing plate, a cover plate and a mounting plate, wherein the shell is of a cylindrical hollow structure, the fixing plate of a circular structure is fixed on an upper port of the shell through a bolt, two groups of U-shaped grooves which are symmetrically arranged are formed in a port of a lower port of the shell, the shell is connected with the cover plate through the two groups of U-shaped grooves in a clamping mode, two groups of sound-absorbing plates which are symmetrically arranged are fixed on a side wall of the inner portion of the shell through a bolt, the mounting plate which is matched with the inner diameter of the shell is arranged in parallel in the shell, and;
the mounting plate bottom end bolt is fixed with driving motor, driving motor's output passes through shaft coupling and bull stick bottom fixed connection, the through-hole that the fixed plate top was seted up is passed to the first half of bull stick, and the first half of bull stick extends to the fixed plate top, the first half periphery of bull stick is fixed with the flabellum that three sets of annular array arranged through the sleeve block bolt.
Preferably, the acoustical panel lateral wall has evenly seted up the multiunit and has inhaled the sound hole, inside from outer to interior has set gradually inhales sound black paper layer, honeycomb core board layer, silence cotton layer and non-woven fabrics layer of inhaling of acoustical panel, inhale sound black paper layer and the inseparable laminating of honeycomb core board layer, honeycomb core board layer and the inseparable laminating of silence cotton layer, honeycomb core board layer and the inseparable laminating of non-woven fabrics layer.
Preferably, a fixing ring is fixed in a mounting hole formed in the outer wall of the cover plate through a bolt, a support with a cross structure is fixed on the side wall of the fixing ring through a bolt, and four groups of radiating fins arranged in an annular array are rotatably connected to the top end of the support.
Preferably, the rotating rod is movably connected with the fixed plate through a movable block, and four groups of mounting holes arranged in an annular array are formed in the top end of the fixed plate.
Preferably, the bottom end of the cover plate is fixed with a dust screen through bolts, the outer diameter of the dust screen is larger than the inner diameter of a fixing opening formed in the bottom end of the cover plate, and the shell and the cover plate are fixed through two groups of locking bolts.
The utility model discloses a technological effect and advantage: according to the low-noise outer rotor direct-drive fan, the noise generated during the operation of the fan is reduced through the sound-absorbing black paper layer, the honeycomb core board layer, the silent cotton board layer and the non-woven paper cloth layer, so that the use of a user is facilitated; the heat dissipation fins are driven by air flow to rotate so as to blow air to the driving motor, so that the heat dissipation of the driving motor is realized, the working performance of the driving motor can be improved, and the driving motor is effectively prevented from being overheated to cause abnormity; the cover plate is connected with the shell in a clamping manner, and the locking bolt is used for locking, so that the cover plate is convenient to disassemble, and a user can conveniently overhaul the whole body; this low noise external rotor directly drives fan, simple structure, the radiating effect is good.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is an enlarged view of the structure a in fig. 1 according to the present invention;
fig. 3 is a cross-sectional view of the acoustic panel of the present invention;
fig. 4 is a schematic structural diagram of the heat dissipation fin of the present invention.
In the figure: the fan blade comprises a shell 1, a fixing plate 2, a cover plate 3, a mounting plate 4, a driving motor 5, a rotating rod 6, a sound absorption plate 7, a sound absorption black paper layer 71, a honeycomb core plate layer 72, a silence cotton plate layer 73, a non-woven paper cloth layer 74, a heat dissipation fin 8, a dust screen 9, a support 10, a fixing ring 11, a locking bolt 12 and a fan blade 13.
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 work belong to the protection scope of the present invention.
Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.
The utility model provides a low noise external rotor direct drive fan as shown in figures 1-4, including shell 1, fixed plate 2, apron 3 and mounting panel 4, shell 1 sets up to cylindrical hollow structure, the last port bolt fastening of shell 1 has the fixed plate 2 of circular structure, the port department of shell 1 lower port sets up two sets of U-shaped recesses that set up symmetrically, shell 1 is connected with apron 3 through two sets of U-shaped recess block, shell 1 inside lateral wall bolt fastening has two sets of acoustical panels 7 that set up symmetrically, shell 1 inside parallel arrangement has mounting panel 4 with shell 1 internal diameter phase-match, mounting panel 4 is through two sets of cushion blocks and shell 1 inside lateral wall fixed weld;
4 bottom bolted fixation of mounting panel has driving motor 5, driving motor 5's output passes through shaft coupling and 6 bottom fixed connection of bull stick, the through-hole of seting up on 2 tops of fixed plate is passed to the first of bull stick 6, and the first of bull stick 6 extends to fixed plate 2 tops, the flabellum 13 that three sets of annular array arranged is fixed with through the sleeve block bolt in the first periphery of bull stick 6.
Specifically, the multiunit sound-absorbing hole has evenly been seted up to abatvoix 7 lateral wall, abatvoix 7 is inside to having set gradually from outside to inside and has inhaled black paper layer 71, honeycomb core board layer 72, silence cotton layer 73 and non-woven paper cloth layer 74, inhale sound black paper layer 71 and the inseparable laminating of honeycomb core board layer 72, honeycomb core board layer 72 and silence cotton layer 73 inseparable laminating, honeycomb core board layer 72 and the inseparable laminating of non-woven paper cloth layer 74.
Specifically, the interior bolt fastening of the installing port that 3 outer walls of apron were seted up has solid fixed ring 11, the inside lateral wall bolt fastening of solid fixed ring 11 has cross structure's support 10, the support 10 top is rotated and is connected with four group's radiating fin 8 that the annular array was arranged, rotates through air flow drive radiating fin 8 and bloies driving motor 5, realizes driving motor 5's heat dissipation, can improve driving motor 5's working property, effectively prevents driving motor 5 overheated emergence unusually.
Specifically, the rotating rod 6 is movably connected with the fixed plate 2 through the movable block, so that the noise is effectively reduced, and four groups of mounting holes arranged in an annular array are formed in the top end of the fixed plate 2.
Specifically, 3 bottom bolt fastening of apron has dust screen 9, and the external diameter of dust screen 9 is greater than the internal diameter of the fixed mouthful of seting up in 3 bottoms of apron, blocks through dust screen 9 that the dust gets into in the shell 1, still fix through two sets of locking bolt 12 between shell 1 and the apron 3.
The theory of operation, this low noise external rotor directly drives fan, when using, through four group's mounting holes on the fixed plate 2 with this whole fixed mounting on the service equipment, then start driving motor 5, driving motor 5 drives bull stick 6 and multiunit flabellum 13 and rotates, it bloies to drive driving motor 5 to rotate according to air flow drive radiating fin 8 simultaneously, realize driving motor 5's heat dissipation, and through the sound black paper layer 71 of inhaling that sets up, honeycomb core board layer 72, silence cotton board layer 73 and non-woven paper cloth layer 74 absorb the noise that driving motor 5 produced, when needing to overhaul this whole, screw out two sets of locking bolt 12, separation apron 3 and shell 1, the bolt on mounting panel 4 and the cushion is demolishd respectively, the bolt on driving motor 5 and the mounting panel 4, thereby make things convenient for the maintainer to overhaul work.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a low noise external rotor directly drives fan, includes shell (1), fixed plate (2), apron (3) and mounting panel (4), its characterized in that: the shell (1) is of a cylindrical hollow structure, a fixing plate (2) of a circular structure is fixed on an upper port of the shell (1) through bolts, two groups of symmetrically arranged U-shaped grooves are formed in a port of a lower port of the shell (1), the shell (1) is connected with a cover plate (3) through two groups of U-shaped grooves in a clamping mode, two groups of symmetrically arranged sound absorption plates (7) are fixed on side walls inside the shell (1) through bolts, a mounting plate (4) matched with the inner diameter of the shell (1) is arranged inside the shell (1) in parallel, and the mounting plate (4) is fixedly welded with the side walls inside the shell (1) through two groups of cushion blocks;
mounting panel (4) bottom bolted fixation has driving motor (5), the output of driving motor (5) passes through shaft coupling and bull stick (6) bottom fixed connection, the through-hole that fixed plate (2) top was seted up is passed to the first half of bull stick (6), and the first half of bull stick (6) extends to fixed plate (2) top, the first half periphery of bull stick (6) is fixed with flabellum (13) that three groups of annular array arranged through the sleeve block bolt.
2. The low noise external rotor direct drive fan of claim 1, wherein: the utility model discloses a sound absorption board, including abatvoix (7), abatvoix (7) lateral wall, sound absorption black paper layer (71), honeycomb core board layer (72), silence cotton layer (73) and non-woven paper cloth layer (74) have been seted up evenly to the multiunit sound absorption hole, abatvoix (7) are inside to have set gradually from outside to inside and inhale sound black paper layer (71), sound absorption black paper layer (71) and honeycomb core board layer (72) closely laminate, honeycomb core board layer (72) and silence cotton layer (73) closely laminate, honeycomb core board layer (72) and non-woven paper cloth layer (74) closely laminate.
3. The low noise external rotor direct drive fan of claim 1, wherein: the heat dissipation device is characterized in that a fixing ring (11) is fixed in a mounting hole formed in the outer wall of the cover plate (3) through a bolt, a support (10) of a cross structure is fixed on the inner side wall of the fixing ring (11) through a bolt, and four groups of heat dissipation fins (8) arranged in an annular array are rotatably connected to the top end of the support (10).
4. The low noise external rotor direct drive fan of claim 1, wherein: the rotating rod (6) is movably connected with the fixed plate (2) through the movable block, and four groups of mounting holes arranged in an annular array are formed in the top end of the fixed plate (2).
5. The low noise external rotor direct drive fan of claim 1, wherein: the bottom end of the cover plate (3) is fixed with a dust screen (9) through bolts, the outer diameter of the dust screen (9) is larger than the inner diameter of a fixing opening formed in the bottom end of the cover plate (3), and the shell (1) and the cover plate (3) are fixed through two groups of locking bolts (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021931491.9U CN213270377U (en) | 2020-09-07 | 2020-09-07 | Low-noise outer rotor direct-drive fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021931491.9U CN213270377U (en) | 2020-09-07 | 2020-09-07 | Low-noise outer rotor direct-drive fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213270377U true CN213270377U (en) | 2021-05-25 |
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ID=75938574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021931491.9U Active CN213270377U (en) | 2020-09-07 | 2020-09-07 | Low-noise outer rotor direct-drive fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213270377U (en) |
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2020
- 2020-09-07 CN CN202021931491.9U patent/CN213270377U/en active Active
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