CN114094766A - Generator heat radiation structure and have its generator - Google Patents
Generator heat radiation structure and have its generator Download PDFInfo
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- CN114094766A CN114094766A CN202111445851.3A CN202111445851A CN114094766A CN 114094766 A CN114094766 A CN 114094766A CN 202111445851 A CN202111445851 A CN 202111445851A CN 114094766 A CN114094766 A CN 114094766A
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- 230000005855 radiation Effects 0.000 title abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims abstract description 76
- 241000883990 Flabellum Species 0.000 claims abstract description 12
- 239000011324 bead Substances 0.000 claims abstract 5
- 230000002093 peripheral effect Effects 0.000 claims description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 13
- 239000000428 dust Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a generator heat dissipation structure and a generator with the same. The generator heat dissipation structure comprises a shell, a main shaft and a fan; the main shaft is arranged in the shell, two ends of the main shaft respectively penetrate through the shell, one end of the main shaft is used for being connected with the driving device, and the other end of the main shaft is fixedly provided with the fan; the fan includes deep bead, flabellum and fixed part, and the periphery wall of fixed part uses the axis of main shaft as central circumference equipartition and has set firmly a plurality of flabellums, and flabellum and deep bead are perpendicular and fixed connection, and the flabellum is arc. The fan is arranged outside the shell, so that the shell can dissipate heat without opening holes, and the sealing property of the shell is ensured; in addition, through adopting the flabellum of convex crooked to replace the flabellum of straight leaf shape, wind-force when having increased the fan rotation to increased the radiating efficiency, avoided taking place because of the not enough condition that leads to the heat accumulation of radiating efficiency, so that the generator heat radiation structure of this application can be applicable to the generator to operational environment is relatively poor and need work for a long time.
Description
Technical Field
The invention relates to the field of generators, in particular to a generator heat dissipation structure and a generator with the same.
Background
The generator can generate heat when working, if the heat is not radiated in time, the structural stress is changed due to different thermal expansion coefficients of parts in the generator, so that the dynamic response of the generator is influenced, and in addition, if the heat productivity is overlarge, the possibility of burning the generator exists;
at present, in order to ensure the heat dissipation of a generator, most generators adopt a structure with a built-in fan, the fan is arranged inside the generator, and an air inlet and an air outlet are formed in the generator, so that the fan rotates to drive air to flow, and components inside the generator are dissipated;
this kind of heat radiation structure, the radiating effect is better, but because the existence of air intake and air outlet, leads to the inside and outside space intercommunication of generator, the dust or the moisture of outside space get into the generator inside damage the generator easily, consequently, can't be applicable to in the environment of raise dust or humidity.
Disclosure of Invention
Therefore, it is necessary to provide a heat dissipation structure of a generator and a generator having the same, which can ensure the heat dissipation efficiency and the sealing property at the same time, in order to solve the problems that the heat dissipation efficiency of the built-in fan structure is high, but the sealing property is not good, and the built-in fan structure cannot be applied to a dust-raising and humid environment.
A generator heat dissipation structure comprises a shell, a main shaft and a fan; the main shaft is arranged in the shell, two ends of the main shaft respectively penetrate through the shell, one end of the main shaft is used for being connected with the driving device, and the other end of the main shaft is fixedly provided with the fan; the fan comprises a wind shield, fan blades and a fixing part, wherein the fixing part can be fixedly connected with the main shaft, the wind shield is fixedly arranged on the peripheral wall of the fixing part and is vertical to the main shaft, the peripheral wall of the fixing part is fixedly provided with a plurality of fan blades by taking the central axis of the main shaft as a central circumferential uniform distribution, the fan blades are vertically and fixedly connected with the wind shield, and the fan blades are arc-shaped.
According to the electrode heat dissipation structure, the fan is arranged outside the shell, so that the shell can dissipate heat without opening a hole, and the sealing performance of the shell is ensured; in addition, through adopting the flabellum of convex crooked to replace the flabellum of straight leaf shape, wind-force when having increased the fan rotation to increased the radiating efficiency, avoided taking place because of the not enough condition that leads to the heat accumulation of radiating efficiency, so that the generator heat radiation structure of this application can be applicable to the generator to operational environment is relatively poor and need work for a long time.
In one embodiment, one end of the fan blade is perpendicular to the peripheral wall of the fixing part, and the diameter of the arc of the fan blade is 3-3.5 times of the diameter of the main shaft.
So set up to increase each flabellum when rotating and the area of contact between the air, thereby wind-force when can effectively increasing the fan rotation, and then increase the generator heat radiation structure's of this application radiating efficiency.
In one embodiment, the arc diameter of the fan blade is 3.23 times the diameter of the main shaft.
In one embodiment, a plurality of heat dissipation fins are fixedly arranged on the outer peripheral wall of the casing.
So set up, through the total area that increases the casing periphery wall to increase the heat-sinking capability of casing periphery wall, reach the effect that increases the radiating efficiency.
In one embodiment, the distance between every two adjacent heat dissipation fins is equal.
The arrangement ensures that the air quantity flowing through every two adjacent radiating fins is relatively uniform, thereby ensuring that the radiating effect on each radiating fin is relatively uniform, and avoiding the situation that the heat quantity on the individual radiating fin is accumulated due to nonuniform radiation to cause overhigh temperature in the shell of the corresponding part.
In one embodiment, the heat dissipation fins are all arranged in parallel to the horizontal plane, the heat dissipation fins and the machine shell are integrally formed, and the machine shell is made of an aluminum profile.
So set up for the casing can be obtained through the mode of drawing the section bar along the axis direction of main shaft, only need according to actual demand with the section bar intercepting that obtains correspond length can regard as the main part use of casing, the processing degree of difficulty of the casing that has significantly reduced has reduced the processing cost.
In one embodiment, the heat dissipation structure of the generator further comprises a fan cover, and the fan cover is detachably arranged at one end, close to the fan, of the casing.
So set up, can protect the fan to avoid the fan to expose for a long time in the external world and lead to warping or damaging, increase the life of fan.
In one embodiment, a plurality of protruding blocks are fixedly arranged on the outer peripheral wall of the casing, the fan cover is detachably arranged on the protruding blocks, and the inner diameter of the fan cover is larger than the outer diameter of the casing.
So set up to form an annular gap between the internal surface that makes the fan casing and the surface of casing, thereby guarantee that mobile air and casing lateral wall can parallel blow off, in order to guarantee that mobile air homoenergetic enough contacts with the periphery wall of casing fully, in order to increase radiating efficiency.
In one embodiment, an end surface of the casing close to the fan is rounded.
So set up to make the outflow that the air current that produces by the fan rotation can be level and smooth, thereby avoid leading to the turbulent flow because of the direct end face collision with fan casing internal surface or casing of air current, influence the velocity of flow of air current, and then reach the effect that increases the radiating efficiency.
A second aspect of the present invention provides a generator including the heat dissipation structure of the generator of any of the above embodiments.
Drawings
FIG. 1 is a schematic view of a half-section of a generator according to the present invention;
FIG. 2 is a schematic cross-sectional view of the fan of FIG. 1 in a front view;
fig. 3 is a schematic cross-sectional view of a portion of the housing in fig. 1 in a left-side view.
Description of the main elements
10. A housing; 11. heat dissipation fins; 20. a main shaft; 30. a fan; 31. a wind deflector; 32. a fan blade; 33. a fixed part; 40. a fan cover.
The present invention is described in further detail with reference to the drawings and the detailed description.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The generator can generate heat when working, if the heat is not radiated in time, the structural stress is changed due to different thermal expansion coefficients of parts in the generator, so that the dynamic response of the generator is influenced, and in addition, if the heat productivity is overlarge, the possibility of burning the generator exists;
at present, in order to ensure the heat dissipation of a generator, most generators adopt a structure with a built-in fan, the fan is arranged inside the generator and is positioned at one end close to a driving device, and an air inlet and an air outlet are formed in the generator, wherein the air inlet is axially formed in the end surface of one side far away from the driving device, and the air outlet is radially formed in the side wall of the generator and corresponds to the fan, so that internal components of the generator are positioned between the air inlet and the air outlet; therefore, when the fan rotates, air enters the generator through the air inlet and flows through the internal components of the generator such as the rotor and the stator in the generator, so that heat generated in the working process of the fan is transferred to flowing air and is exhausted outside through the air outlet, and therefore heat dissipation of the internal components of the generator is achieved;
the heat dissipation structure has a good heat dissipation effect, but due to the existence of the air inlet and the air outlet, the internal space and the external space of the generator are communicated, and dust or moisture in the external space enters the generator and is easy to damage the generator, so that the heat dissipation structure cannot be applied to a dust or humid environment;
for example, in a cold chain vehicle, a generator is generally required to be arranged to generate power to drive a compressor for refrigeration, but because the generator is mostly arranged at the bottom of the vehicle, if the heat dissipation structure is adopted, water splashed during the vehicle traveling process and rainwater flowing down along the vehicle body in rainy days can enter the generator through an air inlet or an air outlet, so that the generator is damaged;
at present, some generators with external fans exist, but compared with a heat dissipation structure with internal fans, heat inside the generator is directly transferred to flowing air; the heat dissipation structure of the external fan is characterized in that heat inside the generator is firstly transferred to the generator shell, and then the generator shell is dissipated through flowing air generated by rotation of the fan; the heat dissipation efficiency is relatively low, and heat accumulation is easily generated after long-time work, so that the generator is not suitable for being used by a generator working for a long time, for example, the generator for a cold chain vehicle compressor needs to be started in the whole course in a cold chain transportation process, if heat is continuously accumulated, the dynamic response of the generator is affected, and even the generator is burnt in serious cases.
In view of the above problems, the present invention provides a heat dissipation structure for a generator, which is shown in fig. 1 and 2 and includes a housing 10, a main shaft 20, and a fan 30; the main shaft 20 is arranged in the casing 10, and two ends of the main shaft respectively penetrate through the casing 10, one end of the main shaft 20 is used for connecting with a driving device, and the other end is fixedly provided with a fan 30; the fan 30 includes a wind guard 31, blades 32 and a fixing portion 33, the fixing portion 33 can be fixedly connected with the main shaft 20, the wind guard 31 is fixedly arranged on the peripheral wall of the fixing portion 33 and perpendicular to the main shaft 20, the peripheral wall of the fixing portion 33 further has a plurality of blades 32 uniformly distributed and fixedly arranged around the central axis of the main shaft 20, the blades 32 are perpendicular to the wind guard 31 and fixedly connected, and the blades 32 are arc-shaped.
Set firmly in main shaft 20 through setting firmly fan 30 and keeping away from drive arrangement's one end, be about to fan 30 sets up in the outside of casing 10 to make casing 10 no longer need set up air intake and air outlet, the cooperation sets up mechanical seal or other conventional seal structure in the position that main shaft 20 runs through casing 10, can guarantee casing 10's leakproofness, thereby make the generator seal structure of this application can be applicable to the relatively poor condition of operating mode such as raise dust, humidity, increased general usefulness.
In addition, after the fan 30 is externally installed, heat generated after the generator is started is transferred to the casing 10, and the casing 10 is cooled by the flowing air generated by the rotation of the fan 30. In the prior art, most of the blades 32 of the external fan are straight blades. In the present application, the fan blades 32 of the fan 30 are designed to be arc-shaped, so that the contact area between each fan blade 32 and the air when rotating is increased, and therefore the wind power when the fan 30 rotates can be effectively increased, and the heat dissipation efficiency of the heat dissipation structure of the generator of the present application is increased.
In summary, according to the heat dissipation structure of the generator, the fan 30 is disposed outside the casing 10, so that the casing 10 can dissipate heat without opening a hole, and the sealing property of the casing 10 is ensured; in addition, through adopting circular arc crooked flabellum 32 to replace straight leaf shape's flabellum 32, wind-force when having increased fan 30 and rotating to increased the radiating efficiency, avoided taking place because of the not enough condition that leads to the heat accumulation of radiating efficiency, so that the generator heat radiation structure of this application can be applicable to the generator to operational environment is relatively poor and need long-time work.
Further, a wind guard 31 perpendicular to the main shaft 20 is fixed to the outer peripheral wall of the fixing portion 33 so that, when the fan 30 rotates, air entering the fan 30 is blocked by the wind guard 31 and is pressed into a bypass formed between the fan blades 32, thereby realizing air blowing by the rotation of the fan 30.
In some embodiments, the wind deflector 31 is in a slope shape, and along the central axis direction of the main shaft 20, the diameter of the wind deflector 31 is gradually increased toward one side close to the casing 10, so as to achieve an effect of guiding the flow toward the side wall of the casing 10, when the fan 30 rotates to supply the wind, the flowing air can flow out along the slope direction under the guiding effect of the slope of the wind deflector 31, so as to reduce an included angle between the flowing air flowing out from the duct and the side wall of the casing 10, so that the airflow is close to the side wall of the casing 10 as much as possible, thereby reducing energy loss caused by collision between the flowing air and the fan cover 40 or the casing 10, and achieving an effect of increasing the heat dissipation efficiency of the fan 30.
In some embodiments, one end of the fan blade 32 is perpendicular to the outer peripheral wall of the fixing portion 33, and the circular arc diameter of the fan blade 32 is 3 to 3.5 times the diameter of the main shaft 20, and in this magnification range, the contact area between each fan blade 32 and the air when rotating can be increased in a limited manner, so that the wind power when the fan 30 rotates can be effectively increased, and the heat dissipation efficiency of the heat dissipation structure of the generator of the present application is further increased. In the embodiment shown in FIG. 2, fan blades 32 have an arc diameter that is 3.23 times the diameter of main shaft 20.
In the embodiment shown in fig. 3, a plurality of heat dissipation fins 11 are fixedly disposed on the peripheral wall of the casing 10, so that the total area of the peripheral wall of the casing 10 is increased, the contact area between the peripheral wall of the casing 10 and the outside air is increased, the heat dissipation capability of the peripheral wall of the casing 10 is increased, and the effect of increasing the heat dissipation efficiency is achieved.
Also in the embodiment shown in fig. 3, the spacing between every two adjacent radiator fins 11 is equal. By arranging the heat dissipation fins 11 at equal intervals, when flowing air flows into the heat dissipation fins 11, the air volume flowing through every two adjacent heat dissipation fins 11 is relatively uniform, so that the heat dissipation effect on each heat dissipation fin 11 is relatively uniform, and the situation that the heat on the individual heat dissipation fin 11 is accumulated due to nonuniform heat dissipation to cause overhigh temperature in the shell 10 at the corresponding part is avoided.
Also in the embodiment shown in fig. 3, the heat dissipation fins 11 are all disposed parallel to the horizontal plane, the heat dissipation fins 11 are integrally formed with the casing 10, and the casing 10 is an aluminum profile. The radiating fins 11 are arranged in parallel to the horizontal plane, so that each radiating fin 11 is parallel to the central axis of the main shaft 20, the casing 10 can be obtained by drawing a section along the central axis of the main shaft 20, the section obtained can be used as the main body of the casing 10 only by cutting the section with a corresponding length according to actual requirements, and the complete casing 10 can be obtained by additionally arranging end covers at two ends of the obtained main body, so that the processing difficulty of the casing 10 is greatly reduced, and the processing cost is reduced;
and casing 10 adopts the aluminium alloy, and density is less on the one hand, and weight is lighter, is convenient for transport, transportation, and on the other hand, the heat conductivility of aluminium is better relatively, is favorable to casing 10's heat dissipation to the radiating efficiency of the generator heat dissipation mechanism of this application can be improved.
In the embodiment shown in fig. 1, the heat dissipation structure of the generator further includes a fan cover 40, the fan cover 40 is detachably disposed at an end of the casing 10 close to the fan 30, and an air inlet is formed in an end surface of the fan cover 40 away from the casing 10. The fan cover 40 is arranged, so that the fan 30 can be protected, the fan 30 is prevented from being deformed or damaged due to long-time exposure to the outside, and the service life of the fan 30 is prolonged; and the air inlet is formed, so that air can enter the fan cover 40 from the air inlet, and the normal use of the fan 30 is not influenced.
As shown in fig. 1 and fig. 3, a plurality of protruding blocks are fixedly disposed on the outer circumferential wall of the casing 10, the fan cover 40 is detachably disposed on the protruding blocks, and the inner diameter of the fan cover 40 is larger than the outer diameter of the casing 10, so that an annular gap is formed between the inner surface of the fan cover 40 and the outer surface of the casing 10, and when the fan 30 is started, the flowing air flowing out along the radial direction of the duct flows out along the annular gap, thereby ensuring that the flowing air and the outer side wall of the casing 10 can be blown out in parallel, ensuring that the flowing air can be fully contacted with the outer circumferential wall of the casing 10, and increasing the heat dissipation efficiency;
the convex block is fixedly arranged on the outer peripheral wall of the machine shell 10, and the fan cover 40 is arranged on the convex block, so that the fan cover 40 can still be arranged on the machine shell 10 under the condition that the inner diameter is larger than the outer diameter of the machine shell 10;
because the fan cover 40 is used for protecting the fan 30, after long-time use, the fan cover 40 is easily contaminated and dirt is accumulated, and if the dirt blocks the air inlet, normal use of the fan 30 may be affected due to abnormal air inlet failure; therefore, the fan cover 40 needs to be cleaned and maintained after being used for a certain time, and in the application, the fan cover 40 is detachably arranged on the machine shell 10, so that when the fan cover 40 needs to be cleaned and maintained, the fan cover 40 can be cleaned and maintained after being detached, the difficulty in cleaning and maintaining the fan cover 40 is reduced, and the fan cover 40 can be cleaned and maintained more thoroughly;
in addition, the detachable arrangement refers to common fixed connection modes such as bolt connection, clamping connection and interference fit, and the fixed connection modes can be detached as required. Preferably, the fan cover 40 and the convex block are connected through a bolt along the end face of one side far away from the main shaft 20, the radially arranged bolt has no other parts to block, the installation and the disassembly are convenient, and the difficulty in replacing and maintaining the fan cover 40 is further reduced.
Preferably, four bumps are uniformly distributed in the circumferential direction by taking the central axis of the casing 10 as the center, the peripheral wall of the casing 10 is divided into an upper part, a lower part, a left part and a right part by the four bumps, and the heat dissipation fins 11 are arranged on the left part and the right part of the peripheral wall of the casing 10;
the four protruding blocks which are uniformly distributed in the circumferential direction can ensure that the fan cover 40 and the machine shell 10 are fixed relatively firmly; the reason why the heat dissipation fins 11 are only disposed on the left and right portions of the outer peripheral wall of the housing 10 is that if the heat dissipation fins 11 are disposed on the upper and lower portions of the outer peripheral wall of the housing 10, the heat dissipation efficiency improvement benefit brought by the arrangement of the heat dissipation fins 11 is low, and on the contrary, the cost is increased due to the addition of the heat dissipation fins 11, and the cost performance is low.
If the heat dissipation fins are disposed on the upper portion of the outer peripheral wall of the casing 10, the airflow blown out by the fan 30 is blocked by the junction box on the top of the casing 10, so that the expected heat dissipation effect cannot be achieved; if the heat dissipation fins are disposed on the lower portion of the outer peripheral wall of the casing 10, since the lower portion of the casing 10 is close to the bottom surface and the distance between the lower portion and the bottom surface is small, the amount of external air that can be used for heat transfer with the heat dissipation fins 11 is relatively small, and heat exchange with the heat dissipation fins 11 cannot be completed in time only by the airflow blown out by the fan 30, which may also result in failure to achieve the expected heat dissipation effect.
In the embodiment shown in fig. 1, the end surface of the casing 10 near the fan 30 is rounded. So that the airflow generated by the rotation of the fan 30 can smoothly flow out along the annular gap between the casing 10 and the fan cover 40 under the guiding action of the chamfered surface, thereby avoiding the turbulence caused by the direct collision of the airflow with the inner surface of the fan cover 40 or the end surface of the casing 10, further influencing the flow velocity of the airflow, and further achieving the effect of increasing the heat dissipation efficiency.
A second aspect of the present invention is a generator including the heat dissipation structure of the generator according to any one of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A generator heat dissipation structure is characterized by comprising a machine shell (10), a main shaft (20) and a fan (30);
the main shaft (20) is arranged in the shell (10), two ends of the main shaft respectively penetrate through the shell (10), one end of the main shaft (20) is used for being connected with a driving device, and the other end of the main shaft is fixedly provided with the fan (30);
fan (30) include deep bead (31), flabellum (32) and fixed part (33), fixed part (33) can with main shaft (20) fixed connection, deep bead (31) set firmly in the periphery wall of fixed part (33) and with main shaft (20) are perpendicular, the periphery wall of fixed part (33) still with the axis of main shaft (20) has set firmly a plurality ofly as central circumference equipartition fan blade (32), fan blade (32) with deep bead (31) are perpendicular and fixed connection, fan blade (32) are arc.
2. The generator heat dissipation structure of claim 1, wherein one end of the fan blade (32) is perpendicular to the outer peripheral wall of the fixing portion (33), and the diameter of the arc of the fan blade (32) is 3 to 3.5 times the diameter of the main shaft (20).
3. The generator heat dissipation structure according to claim 2, wherein the diameter of the arc of the fan blade (32) is 3.23 times the diameter of the main shaft (20).
4. The generator heat dissipation structure according to claim 1, wherein a plurality of heat dissipation fins (11) are fixed to the outer peripheral wall of the housing (10).
5. Generator heat dissipation structure according to claim 4, wherein the spacing between every two adjacent heat dissipation fins (11) is equal.
6. The generator heat dissipation structure according to claim 4, wherein the heat dissipation fins (11) are all disposed parallel to a horizontal plane, the heat dissipation fins (11) are integrally formed with the housing (10), and the housing (10) is an aluminum profile.
7. The generator heat dissipation structure according to claim 1, further comprising a fan cover (40), wherein the fan cover (40) is detachably disposed at an end of the casing (10) close to the fan (30).
8. The generator heat dissipation structure of claim 7, wherein a plurality of protrusions are fixedly arranged on the outer peripheral wall of the casing (10), the fan cover (40) is detachably arranged on the protrusions, and the inner diameter of the fan cover (40) is larger than the outer diameter of the casing (10).
9. The generator heat dissipation structure of claim 1, wherein the end surface of the casing (10) near the fan (30) is rounded.
10. A generator comprising the heat dissipation structure of any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445851.3A CN114094766A (en) | 2021-11-30 | 2021-11-30 | Generator heat radiation structure and have its generator |
| PCT/CN2021/140496 WO2023097817A1 (en) | 2021-11-30 | 2021-12-22 | Heat dissipation structure of generator and generator having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445851.3A CN114094766A (en) | 2021-11-30 | 2021-11-30 | Generator heat radiation structure and have its generator |
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| CN114094766A true CN114094766A (en) | 2022-02-25 |
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| CN202111445851.3A Pending CN114094766A (en) | 2021-11-30 | 2021-11-30 | Generator heat radiation structure and have its generator |
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| WO (1) | WO2023097817A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120454399A (en) * | 2025-07-09 | 2025-08-08 | 云梦山(常州)科技有限公司 | An aviation starter generator with internal cleaning function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117118123B (en) * | 2023-08-04 | 2024-11-08 | 池州市谦跃信息技术有限公司 | Dustproof protection device of generator and motor device |
| CN117914057B (en) * | 2024-03-18 | 2024-05-31 | 江苏泰隆高新传动设备有限公司 | Explosion-proof motor for fan |
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| CN212875599U (en) * | 2020-09-30 | 2021-04-02 | 扬州市鑫明机电有限公司 | Novel permanent magnet generator |
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| JP2003074496A (en) * | 2001-08-31 | 2003-03-12 | Sumiyoshi Kinzoku Kk | Fan motor device |
| CN209818303U (en) * | 2019-04-15 | 2019-12-20 | 珠海凌达压缩机有限公司 | Oil blocking cap, rotor assembly and compressor |
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- 2021-11-30 CN CN202111445851.3A patent/CN114094766A/en active Pending
- 2021-12-22 WO PCT/CN2021/140496 patent/WO2023097817A1/en not_active Ceased
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| CN203717455U (en) * | 2014-01-28 | 2014-07-16 | 安徽安凯汽车股份有限公司 | Rotor wind screen used for electric motor coach driving motor |
| CN204061304U (en) * | 2014-03-26 | 2014-12-31 | 郭亮甫 | Oxygenator in pond double shrouded wheel |
| CN207853668U (en) * | 2017-12-22 | 2018-09-11 | 绍兴市万鹏机电有限公司 | A kind of fire-proof motor |
| CN108278203A (en) * | 2018-01-19 | 2018-07-13 | 浙江奔凯精密机械有限公司 | A kind of oil-free scroll formula air compressor |
| CN210927262U (en) * | 2019-10-31 | 2020-07-03 | 江西广厚科技协同创新有限公司 | Aluminum alloy motor casing of dust accumulation prevention |
| CN212875599U (en) * | 2020-09-30 | 2021-04-02 | 扬州市鑫明机电有限公司 | Novel permanent magnet generator |
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| CN120454399A (en) * | 2025-07-09 | 2025-08-08 | 云梦山(常州)科技有限公司 | An aviation starter generator with internal cleaning function |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023097817A1 (en) | 2023-06-08 |
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