CN209299070U - A kind of outer rotor blower fan and its interior radiator structure - Google Patents

Abstract

The utility model provides a kind of outer rotor blower fan and its interior radiator structure, outer rotor blower fan includes pedestal, stator, outer rotor, relayed line plate, main circuit board and heat dissipation end cap, it further include an interior flabellum being connected on outer rotor mandrel, by interior flaabellum shape at around the heat exchange circulation for relaying line plate, air-flow brings component heat into interior flabellum air draught area along main circuit board, and heat is blowed into pedestal end face, heat is transmitted to exterior space by pedestal in time, distributing for blower interior component heat is effectively carried out, the reliability and service life of blower are promoted.

Description

A kind of outer rotor blower fan and its interior radiator structure

Technical field

The utility model relates to a kind of outer rotor blower fans, and in particular to a kind of outer rotor blower fan and its interior radiator structure.

Background technique

For blower since it needs long time continuous working, internal electric component can constantly generate heat, existing blower Component be usually to be conducted by heat radiation mode through end cap after component is raised to higher temperature, some are by pole The component for being also easy to produce high temperature is contacted with end cap improves heat transference efficiency, but the high temperature of most of component of blower interior cannot It distributes in time, blower reliability and service life is caused to substantially reduce.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a kind of outer rotor blower fan and its Interior radiator structure.

In order to achieve the above objectives, the technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of outer rotor The interior radiator structure of blower, outer rotor blower fan include pedestal, stator, outer rotor, relayed line plate, main circuit board and radiating end Lid, the center of the pedestal have the sleeve extended to an end face, and the stator is mounted on the periphery of sleeve, the outer rotor packet The mandrel of cover and cover center is included, the mandrel is mounted on the inner wall of the sleeve by bearing, and the heat dissipation end cap lid is set It is carried on the back on the base in the end face of stator；It further include the interior flabellum of a connection on the mandrel, the interior flabellum relayed Line plate and main circuit board be set to the pedestal and radiate in the cavity that end cap is constituted and by from pedestal to the direction of heat dissipation end cap according to Secondary arrangement, it is described to relay return to the wind of the line plate center with flabellum in face；The air-flow that the interior flabellum generates is from relaying The outflow of the gap between line plate and pedestal end face is crossed, then relayed clearance backflow of crossing between line plate periphery and pedestal was to relaying line Interstitial area between plate and main circuit board finally flows back into from interior flabellum from the return to the wind for relaying line plate center.

The utility model compared to the prior art, by interior flaabellum shape at around relaying the heat exchange circulation of line plate, gas Stream brings component heat into interior flabellum air draught area along main circuit board, and heat is blowed to pedestal end face, heat by pedestal and When be transmitted to exterior space, effectively carry out blower interior component heat and distribute, promote the reliability and service life of blower.

Further, the base center is formed to the flabellum of stator side indent in the installation place of the interior flabellum and is accommodated Slot.

Further, the flabellum holding tank has the conical surface inner wall with interior flabellum form fit.

Using the above preferred scheme, the air-flow that interior flabellum generates can smoothly enter along conical surface inner wall to be relayed Interstitial area between line plate and pedestal end face.

Further, the gap relayed between line plate and pedestal end face is 2-5mm, described to relay line plate and master Gap between circuit board is 10-20mm.

Using the above preferred scheme, the gap size between line plate and pedestal end face was reasonably relayed, was facilitated The interstitial area forms strong air-flow, carries out sufficient heat exchange with pedestal.

Further, the heat dissipation end cap inner wall is coated with thermal conductive insulation glue.

Using the above preferred scheme, the heat dissipation performance and electrical safety performance of heat dissipation end cap are improved.

Further, it is convex to be additionally provided with the contact with master chip position matches on main circuit board for the heat dissipation end cap inside Block.

Using the above preferred scheme, by contact tab, carry out the heat of master chip by good heat transfer entity Conduction, further increases heat dissipation performance.

A kind of outer rotor blower fan, including pedestal, stator, outer rotor, relayed line plate, main circuit board and heat dissipation end cap, institute The center for stating pedestal has the sleeve extended to an end face, and the stator is mounted on the periphery of sleeve, and the outer rotor includes cover The mandrel of body and cover center, the mandrel are mounted on the inner wall of the sleeve by bearing, and the heat dissipation end cap lid is located at institute Stating back on pedestal, in the end face of stator, further includes the interior radiator structure.

Using the above preferred scheme, blower interior component heat is distributed in time, promotes service life of fan.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model.

The title of number and corresponding component represented by letter in figure:

1- pedestal；11- sleeve；12- flabellum holding tank；2- stator；3- outer rotor；31- mandrel；4- relayed line plate；41- Return to the wind；5- main circuit board；6- heat dissipation end cap；61- thermal conductive insulation glue；62- contact tab；Flabellum in 7-.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, a kind of interior radiator structure of outer rotor blower fan, outer rotor blower fan includes pedestal 1, stator 2, outer rotor 3, line plate 4, main circuit board 5 and heat dissipation end cap 6 were relayed, the center of pedestal 1 has the sleeve 11 extended to an end face, stator 2 It is mounted on the periphery of sleeve 11, outer rotor 3 includes the mandrel 31 of cover and cover center, and mandrel 31 is mounted on sleeve by bearing 11 inner wall, the heat dissipation lid of end cap 6, which is located on pedestal 1, to be carried on the back in the end face of stator 2；It further include an interior flabellum being connected on mandrel 31 7, interior flabellum 7, relayed line plate 4 and main circuit board 5 be set to pedestal 1 and radiate in the cavity that end cap 6 is constituted and by from pedestal 1 to The direction of heat dissipation end cap 6 is successively arranged, and return to the wind 41 of 4 center of line plate with flabellum 7 in face was relayed；Interior flabellum 7 produces Raw air-flow is flowed out from the gap relayed between 1 end face of line plate 4 and pedestal, then between relayed mistake 4 periphery of line plate and pedestal 1 Clearance backflow is to the interstitial area relayed between line plate 4 and main circuit board 5, finally from the return to the wind for relaying 4 center of line plate 41 flow back at interior flabellum 7.

Beneficial effect by adopting the above technical scheme is: being followed by interior flaabellum shape at around the heat exchange for relaying line plate Ring, air-flow brings component heat into interior flabellum air draught area along main circuit board, and heat is blowed to pedestal end face, and heat passes through bottom Seat is transmitted to exterior space in time, effectively carries out distributing for blower interior component heat, promotes the reliability and use of blower Service life.

As shown in Figure 1, in other embodiments of the utility model, installation place shape of 1 center of pedestal in interior flabellum 7 At the flabellum holding tank 12 to stator side indent；Flabellum holding tank 12 has the conical surface inner wall with interior 7 form fit of flabellum.Using The beneficial effect of above-mentioned technical proposal is: the air-flow that interior flabellum 7 generates can smoothly enter along conical surface inner wall to be relayed Interstitial area between 1 end face of line plate 4 and pedestal.

As shown in Figure 1, being relayed between line plate 4 and pedestal end face in other embodiments of the utility model Gap d 1 is 2-5mm, and relaying the gap d 2 between line plate 4 and main circuit board 5 is 10-20mm.By adopting the above technical scheme Beneficial effect is: reasonably relaying the gap size between line plate and pedestal end face, and helped to be formed strongly in the interstitial area Air-flow, with pedestal carry out sufficient heat exchange.

As shown in Figure 1, heat dissipation 6 inner wall of end cap is coated with heat conductive insulating in other embodiments of the utility model Glue 61.Beneficial effect by adopting the above technical scheme is: improving the heat dissipation performance and electrical safety performance of heat dissipation end cap.

As shown in Figure 1, in other embodiments of the utility model, it is additionally provided on the inside of the end cap 6 that radiates and main circuit The contact tab 62 that master chip position matches on plate 5.Beneficial effect by adopting the above technical scheme is: by contact tab, It conducts the heat of master chip by good heat transfer entity, further increases heat dissipation performance.

As shown in Figure 1, a kind of outer rotor blower fan, including pedestal 1, stator 2, outer rotor 3, relayed line plate 4, main circuit board 5 have the sleeve 11 extended to an end face with heat dissipation end cap 6, the center of pedestal 1, and stator 2 is mounted on the periphery of sleeve 11, outer to turn Son 3 includes the mandrel 31 of cover and cover center, and mandrel 31 is mounted on the inner wall of sleeve 11 by bearing, and the heat dissipation lid of end cap 6 is set Back further includes the interior radiator structure in the end face of stator on pedestal.Beneficial effect by adopting the above technical scheme is: and When blower interior component heat is distributed, promoted service life of fan.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow the common skill in this field Art personnel can understand the content of the utility model and be implemented, and not limit the protection scope of the present invention, All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the protection scope of the utility model It is interior.

Claims (7)

1. a kind of interior radiator structure of outer rotor blower fan, which is characterized in that outer rotor blower fan include pedestal, stator, outer rotor, in After crossing line plate, main circuit board and heat dissipation end cap, the center of the pedestal has the sleeve extended to an end face, the stator installation In the periphery of sleeve, the outer rotor includes the mandrel of cover and cover center, and the mandrel is mounted on the set by bearing The inner wall of cylinder, the heat dissipation end cap lid, which is set, to be carried on the back on the base in the end face of stator；Further include a connection on the mandrel Interior flabellum, the interior flabellum, relayed line plate and main circuit board be set to the pedestal and radiate in the cavity that end cap is constituted and It successively arranges by from pedestal to the direction of heat dissipation end cap, it is described to relay return to the wind of the line plate center with flabellum in face； The air-flow that the interior flabellum generates is flowed out from the gap relayed between line plate and pedestal end face, then it is relayed cross line plate periphery and Clearance backflow is to the interstitial area relayed between line plate and main circuit board between pedestal, finally from the return air for relaying line plate center It is open closed to arrive at interior flabellum.

2. the interior radiator structure of outer rotor blower fan according to claim 1, which is characterized in that the base center is described The installation place of interior flabellum forms the flabellum holding tank to stator side indent.

3. the interior radiator structure of outer rotor blower fan according to claim 2, which is characterized in that the flabellum holding tank has With the conical surface inner wall of interior flabellum form fit.

4. the interior radiator structure of outer rotor blower fan according to claim 3, which is characterized in that described to relay line plate and bottom Gap between seat end face is 2-5mm, and the gap relayed between line plate and main circuit board is 10-20mm.

5. the interior radiator structure of outer rotor blower fan according to claim 1, which is characterized in that the heat dissipation end cap inner wall applies It is covered with thermal conductive insulation glue.

6. the interior radiator structure of outer rotor blower fan according to claim 5, which is characterized in that on the inside of the heat dissipation end cap also Equipped with master chip position matches on main circuit board contact tab.

7. a kind of outer rotor blower fan, which is characterized in that including pedestal, stator, outer rotor, relayed line plate, main circuit board and dissipate Hot end lid, the center of the pedestal have the sleeve extended to an end face, and the stator is mounted on the periphery of sleeve, described to turn outside Attached bag includes the mandrel of cover and cover center, and the mandrel is mounted on the inner wall of the sleeve, the heat dissipation end cap by bearing Lid, which is set, to be carried on the back on the base in the end face of stator；It further include the interior heat dissipation of any outer rotor blower fan of claim 1-6 Structure.