CN221042556U - Embedded generator of fan - Google Patents
Embedded generator of fan Download PDFInfo
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- CN221042556U CN221042556U CN202322708597.2U CN202322708597U CN221042556U CN 221042556 U CN221042556 U CN 221042556U CN 202322708597 U CN202322708597 U CN 202322708597U CN 221042556 U CN221042556 U CN 221042556U
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- main pole
- generator
- fan
- embedded
- stator
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of generators, in particular to a fan embedded generator which comprises a front flange, a centrifugal fan, a machine base, a main pole stator, a main pole rotor, an excitation stator, an excitation rotor and a rear end cover, wherein the front flange is fixed at the front end of the machine base; the rear end part of the centrifugal fan is U-shaped, and the stator winding of the main pole stator is embedded at the rear end of the centrifugal fan. The weight, the volume and the length of the fan embedded generator are greatly reduced, the structure of the generator is simple and reliable, the heat dissipation efficiency is high, and the universality of the generator is strong.
Description
Technical Field
The utility model relates to the technical field of generators, in particular to a fan embedded generator.
Background
Most of diesel generators in the current market adopt a separated heat dissipation centrifugal fan (namely, the end face of the fan is a certain distance away from a winding), the structure leads to a longer length of the generator, and the front end cover is fixed in installation size and cannot be suitable for a plurality of diesel engines.
The existing generator with the embedded fan still has the problems of large fan volume, long length, poor reliability, low heat dissipation efficiency, single front end cover, poor universality and the like.
Disclosure of Invention
The utility model aims to provide a fan embedded generator to solve the problems of overlong generator length, small air duct, poor heat dissipation and the like in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows.
The embedded generator of a kind of fan, including front flange, centrifugal fan, frame, main pole stator, main pole rotor, excitation stator, excitation rotor and back end cap, the said front flange is fixed in front of the frame, the centrifugal fan is set up in front of frame, locate at the back side of front flange, main pole stator and main pole rotor are coaxial to set up, and locate at the back side of centrifugal fan, excitation stator and excitation rotor are coaxial to set up, and locate at main pole stator and main pole rotor back side, the back end cap is removably fixed in the back end of the frame, there are square latticed air inlet channels on the back end cap; the rear end part of the centrifugal fan is U-shaped, and the stator winding of the main pole stator is embedded at the rear end of the centrifugal fan.
Further, a plurality of penetrating air channels are arranged on the main pole rotor, air channels are also arranged on the side wall of the machine base, a widened U-shaped air channel is arranged in the middle of the air channel on the machine base, an air outlet is arranged at the front end of the machine base, and each air channel is communicated with the air inlet channel on the rear end cover and the air outlet on the machine base to form a heat dissipation ventilation channel.
Further, the outside of the machine base is provided with a protective cover, the protective cover is provided with a plurality of rows of waist-shaped holes, and the waist-shaped holes between the adjacent rows are arranged in a staggered mode.
Further, a connecting disc is further arranged on the front side of the front flange, and the connecting disc is connected with the central shaft of the main pole rotor through bolts.
Compared with the prior art, the fan embedded generator has the advantages that:
(1) The weight, the volume and the length of the generator are greatly reduced, and the structure of the generator is simple and reliable;
(2) The embedded fan structure of the generator not only shortens the length of the generator, but also improves the heat dissipation efficiency of the stator winding;
(3) The structural design of the integrated machine base of the generator not only increases the flow of the air duct, but also saves space and effectively improves the heat dissipation efficiency; the air inlet and the air outlet adopt a large-flow air outlet design, so that the heat dissipation efficiency is high;
(4) The front flange and the connecting disc of the generator are detachable, so that the generator has strong universality; the design of protection casing has promoted the security and does not influence the heat dissipation simultaneously.
Drawings
FIG. 1 is a schematic diagram of a semi-sectional structure of a fan-embedded generator of the present utility model.
Fig. 2 is a schematic side view of the fan-embedded generator of the present utility model.
Fig. 3 is a schematic view of a partial enlarged structure at a in fig. 1.
Fig. 4 is a schematic structural diagram of a centrifugal fan of the fan-embedded generator of the present utility model.
FIG. 5 is a schematic diagram of an air path of a fan-embedded generator according to the present utility model.
Fig. 6 is a schematic structural diagram of a stand of the fan-embedded generator of the present utility model.
Fig. 7 is a schematic structural view of a front flange of the fan-embedded generator of the present utility model.
Fig. 8 is a schematic structural view of a rear end cover of the fan-embedded generator of the present utility model.
Fig. 9 is a schematic structural view of a shield of a fan-embedded generator according to the present utility model.
In the figure:
The centrifugal fan comprises a front flange, a 2-centrifugal fan, a 3-machine base, a 4-main pole stator, a 401-stator winding, a 5-main pole rotor, a 6-excitation stator, a 7-excitation rotor, an 8-rear end cover, a 9-connecting disc and a 10-protection cover.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than as described herein, and therefore the present utility model is not limited to the specific embodiments disclosed below.
The embedded fan generator as shown in fig. 1-9 comprises a front flange 1, a centrifugal fan 2, a machine base 3, a main pole stator 4, a main pole rotor 5, an exciting stator 6, an exciting rotor 7 and a rear end cover 8, wherein the front flange 1 is detachably fixed at the front end of the machine base 3 through bolts, the centrifugal fan 2 is arranged at the front end of the machine base 3 and is positioned at the rear side of the front flange 1, the main pole stator 4 and the main pole rotor 5 are coaxially arranged and are positioned at the rear side of the centrifugal fan 2, the exciting stator 6 and the exciting rotor 7 are coaxially arranged and are positioned at the rear sides of the main pole stator 4 and the main pole rotor 5, and the centrifugal fan 2, the main pole rotor 5 and the exciting rotor 7 are all fixed on the same central shaft; the rear end cover 8 is detachably fixed at the rear end of the machine base 3, and a square grid-shaped small-space embedded air inlet duct is arranged on the rear end cover 8;
Wherein, the rear end part of the centrifugal fan 2 is U-shaped, and the stator winding 401 of the main pole stator 4 is embedded at the rear end of the centrifugal fan 2; the overall length of the generator is shortened.
In the embodiment, the main pole rotor 5 is provided with a plurality of penetrating air channels, the side wall of the stand 3 is also provided with an air channel arranged along the axial direction, and the middle part of the air channel on the stand 3 is provided with a widened U-shaped air channel, so that the air inlet flow can be increased; an air outlet is arranged on the side wall of the front end of the machine base 3; the rear end cover 8, the machine base 3, the air channel on the main pole rotor 5 and the allowance containing space in the machine base 3 form a heat dissipation and ventilation channel. And, still be equipped with protection casing 10 in the frame 3 outside, be equipped with many rows of waist type holes on the protection casing 10, and the waist type hole dislocation setting between the adjacent row.
When the generator operates, the connecting disc 9, the centrifugal fan 2, the main pole rotor 5 and the exciting rotor 7 rotate together with the central shaft, and external cold air enters the machine base 3 from the air inlet channel on the rear end cover 8 through the running action of the blades of the centrifugal fan 2, flows through each air channel on the machine base 3 and the main pole rotor 5 and then flows out from the air outlet, so that the ventilation and heat dissipation effects are achieved.
The generator adopts an embedded fan structure, as shown in fig. 3, a stator winding 401 of the generator is embedded into the centrifugal fan 2, so that the length of the generator is greatly shortened, compared with that of a traditional separated centrifugal fan 2 generator, the length of the generator is shortened by more than 160mm under the same power, the weight of the generator is reduced by 20% compared with that of a traditional motor, and the length of the generator of the embedded centrifugal fan 2 of the same type on the market is shortened by more than 30 mm. In this embodiment, the centrifugal fan 2 adopts backward inclined blades (as shown in fig. 4, fig. 4 (a) is a schematic diagram of a front view structure of the centrifugal fan 2, fig. 4 (b) is a schematic diagram of a side view structure of the centrifugal fan 2), so that the heat dissipation efficiency of the fan can be improved, the noise of the fan can be reduced, and the design of uneven blades, that is, the angles of intervals among the blades are different, so that the assembly of the connecting disc 9 can be facilitated, and in this embodiment, the design of the included angle between adjacent blades is selected between 20 degrees and 40 degrees; in addition, the groove clamping position is arranged on the central welding hole position of the centrifugal fan 2, so that the connection strength between the centrifugal fan 2 and the central shaft of the rotor is firmer and more reliable; the embedded fan blade directly dissipates heat to the stator winding 401, so that the efficiency of the generator is greatly improved.
The generator adopts a design of a large-flow air duct (shown in fig. 5), adopts an integrated machine base 3 (shown in fig. 6, wherein (a) is a semi-cross-section structure schematic diagram of the machine base 3, and (b) is a side view structure schematic diagram of the machine base 3 in fig. 6), namely, a front end cover of the machine base 3 adopts an integrated design, so that the heat transfer efficiency is effectively improved, in addition, the air duct of the machine base 3 adopts a large-flow air duct design, the wind resistance is reduced, the heat dissipation efficiency is improved, an air inlet on a rear end cover 8 of the generator adopts a square grid small-space embedded air inlet duct design (shown in fig. 8), compared with an equivalent circular air duct, the ventilation heat dissipation efficiency of the air duct is improved by more than 20%, meanwhile, a detachable protective cover 10 (shown in fig. 9, wherein (a) is a front view structure schematic diagram of the protective cover 10, and (b) is an unfolding structure schematic diagram of the protective cover 10) are arranged on the outer side of the machine base 3, so that the safety of a user can be protected, the assembly of the generator can be facilitated, meanwhile, the strength of the protective cover 10 is enhanced, and the heat dissipation area can be improved. The continuous operation reliability of the generator is very good.
The generator adopts the detachable front flange 1 (as shown in fig. 7, the front flange 1 is shown in (a) in fig. 7 and the front flange 1 is shown in (b) in fig. 7, the front flange 1 is shown in a side view, the front flange 1 is shown in the drawing, the front flange is in a through hole structure, the front flange is consistent with the front end surface hole of the engine base 3, when the front flange is installed on an engine, bolts directly penetrate through the front flange 1 and the through hole of the engine base 3 to fix the engine base 3 on the engine, the front flange 1 can play a role in adjusting installation size and transition, in addition, the front flange 1 is light in weight, simple in structure and low in processing cost; when different engines are replaced, the front flange 1 can also be replaced by a structure with a threaded hole, and is assembled on the engine base 3, and meanwhile, an interface corresponding to the size of the engine spigot is designed, so that the generator can be conveniently fastened and positioned on the engine through bolts; the connecting disc 9 is directly screwed on the central shaft of the generator rotor by bolts, so that a connecting shaft sleeve is saved, and the weight is reduced; the connecting disc 9 can be detached and replaced, and different engines can select different connecting discs 9. The front flange 1 and the connecting disc 9 can be made into prefabricated members with different sizes, and the prefabricated members can be directly matched and installed with corresponding sizes when in use, so that the universality of the generator is more obvious.
Claims (4)
1. The embedded generator of a kind of fan, including front flange, centrifugal fan, frame, main pole stator, main pole rotor, excitation stator, excitation rotor and back end cap, characterized by that, the said front flange is fixed in front of the frame, the centrifugal fan is set up in front of frame, locate at the rear side of front flange, main pole stator and main pole rotor coaxially set up, and locate at the rear side of centrifugal fan, excitation stator and excitation rotor coaxially set up, and locate at main pole stator and main pole rotor rear side, the back end cap is removably fixed in the rear end of the frame, there are air inlet ducts in square grid shape on the back end cap; the rear end part of the centrifugal fan is U-shaped, and the stator winding of the main pole stator is embedded at the rear end of the centrifugal fan.
2. The embedded fan generator of claim 1, wherein the main pole rotor is provided with a plurality of through air channels, the side wall of the machine base is also provided with an air channel, the middle part of the air channel on the machine base is provided with a widened U-shaped air channel, the front end of the machine base is provided with an air outlet, and each air channel is communicated with the air inlet channel on the rear end cover and the air outlet on the machine base to form a heat dissipation ventilation channel.
3. The embedded fan generator of claim 1, wherein a protective cover is arranged on the outer side of the machine base, a plurality of rows of waist-shaped holes are arranged on the protective cover, and the waist-shaped holes between adjacent rows are arranged in a staggered manner.
4. The embedded fan generator of claim 1, wherein the front flange is further provided with a connection disc, and the connection disc is connected with a central shaft of the main pole rotor through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322708597.2U CN221042556U (en) | 2023-10-10 | 2023-10-10 | Embedded generator of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322708597.2U CN221042556U (en) | 2023-10-10 | 2023-10-10 | Embedded generator of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042556U true CN221042556U (en) | 2024-05-28 |
Family
ID=91133771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322708597.2U Active CN221042556U (en) | 2023-10-10 | 2023-10-10 | Embedded generator of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042556U (en) |
-
2023
- 2023-10-10 CN CN202322708597.2U patent/CN221042556U/en active Active
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