CN210273627U

CN210273627U - External rotor traction machine with heat dissipation and ventilation functions

Info

Publication number: CN210273627U
Application number: CN201920911398.2U
Authority: CN
Inventors: 杜秋; 邓轶华
Original assignee: Winone Elevator Co Ltd
Current assignee: Winone Elevator Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-07
Anticipated expiration: 2029-06-17

Abstract

The utility model belongs to the technical field of elevator drive assembly technique and specifically relates to take external rotor hauler of heat dissipation ventilation function, including the frame, set up ring form stator on the frame, with have the fixed cyclic annular external rotor together of traction wheel axle, the frame includes the base of bottom, sets up the stator base on the base, is provided with the traction wheel axle on the horizontal cylindrical axis at stator base middle part and perforates, stator base's annular surface on be equipped with and use the perforation of traction wheel axle as the stator louvre of centre of a circle annular distribution, cyclic annular external rotor's annular surface on be equipped with and use the rotor axle center as the rotor louvre of centre of a circle annular distribution. The utility model provides promote the radiating efficiency, and need not the supplementary ventilation of other external circuit device, it is good with ventilation cooling continuity to open promptly, has guaranteed hauler continuous operation's stability, and its simple process, safe and reliable, maintenance convenience are favorable to reducing ventilation cooling's manufacturing cost.

Description

External rotor traction machine with heat dissipation and ventilation functions

Technical Field

The utility model belongs to the technical field of elevator drive assembly technique and specifically relates to take external rotor hauler of heat dissipation ventilation function.

Background

With the rapid development of social economy and the continuous improvement of living standards of common people, an elevator becomes an indispensable part in daily life, the comfort level is an important index of the performance of the elevator, a traction machine is used as a core component of the elevator, the running stability of the traction machine directly influences the comfort level of the elevator, the structure of a brake disc and a brake of the traction machine has great influence on the stability of the traction machine, the heat dissipation of the traction machine at present mainly depends on the natural heat dissipation of the outer surface of a machine base and a rotor exposed in the air, the internal hot air cannot be actively discharged to the outside of a machine shell, the internal temperature is overhigh, the winding resistance is further increased, the copper consumption is increased, the motor efficiency is lower, and electric power resources are wasted.

In most external rotor tractors in the market at present, a stator winding is fixed on a machine base, the back of the machine base is generally designed to be sealed, and due to the structure, heat generated after the stator winding is electrified is not easy to dissipate to the outside through the back of the machine base, the heat dissipation effect is poor, when the tractor reaches a thermal balance state, the temperature rise of a winding coil is high, the surface temperature of the machine base is high, the use reliability and the insulation life of the tractor are influenced, and meanwhile, adverse effects are brought to other electric appliance elements buried in the winding. In addition, when the tractor breaks down and the stator core needs to be detached for maintenance, the stator core is not easy to detach, and the stator core and the winding are easy to damage, so that great trouble and economic loss are brought to maintenance work.

In chinese utility model patent publication No. CN203998547U, "permanent magnet synchronous traction machine with ventilation structure", a cooling fan is arranged on a through hole through setting up ventilation holes at the upper and lower both ends of the frame, and at least, and in chinese utility model patent publication No. CN203326814U "an easy radiating traction machine", a technical scheme including a casing and a stator winding and a rotor which are arranged inside the casing and are mutually matched is disclosed. Wherein, the casing or the base of the traction machine is provided with a vent hole, and a cooling fan is arranged in the casing or the base to cool the inside of the casing of the traction machine. However, the fan has small wind power and low power, only can radiate the outer surfaces of the stator and the rotor, and a large amount of internal heat cannot be dissipated.

"an elevator hauler" of CN109292596A in chinese utility model patent publication number discloses a through set up the flabellum on the rotor, make when the rotor rotates, the flabellum is followed and is rotated together, mix the inside air of hauler, increase the replacement of air between inside and the outside of hauler, constantly introduce the cold air in outside, thereby discharge the inside hot-air of hauler, it is difficult for the dismouting to maintain to increase the flabellum on the rotor, the use of connecting plate is undoubtedly the heavier with the hauler parcel, be unfavorable for the heat dissipation of frame itself, it installs the part additional more, high in manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides an one of the purpose lies in providing a simple process, radiating effect is good, safe and reliable, have the ventilation return circuit and show the external rotor hauler of taking heat dissipation ventilation function that improves the radiating efficiency.

The technical scheme of the utility model as follows:

the outer rotor traction machine with the heat dissipation and ventilation functions comprises a machine base, a circular ring-shaped stator arranged on the machine base, and a circular outer rotor fixed with a traction wheel shaft, wherein the machine base comprises a base at the bottom and a stator base arranged on the base, a traction wheel shaft through hole is arranged on the axis of a transverse cylinder in the middle of the stator base, the circular ring-shaped stator is sleeved on the transverse cylinder, the circular ring-shaped outer rotor is sleeved outside the circular ring-shaped stator, the traction wheel shaft is connected on the traction wheel shaft through hole in a penetrating manner through a bearing, the end part of a stator winding of the circular ring-shaped stator is adjacent to the circular side surface, the annular surface of the stator base is provided with stator radiating holes which are annularly distributed by taking the traction wheel shaft through hole as the circle center, and rotor heat dissipation holes which are annularly distributed by taking the axis of the rotor as the circle center are formed in the annular surface of the annular outer rotor.

Preferably, the number of the stator heat dissipation holes on the stator base is not less than 6, the number of the rotor heat dissipation holes on the annular outer rotor is not less than 6, and the rotor heat dissipation holes and the stator heat dissipation holes are oppositely arranged and matched for use.

Preferably, a strip-shaped heat dissipation rib is arranged between the stator heat dissipation holes in the annular surface of the stator base, one end of the heat dissipation rib extends outwards from the through hole of the traction sheave shaft, and the stator heat dissipation holes and the heat dissipation ribs are alternately arranged in pairs.

Preferably, the top, the left side and the right side of the stator base on the base are of tangent plane structures, brake assemblies are respectively mounted on the tangent planes at the left side and the right side of the stator base, and motor wire outlet holes and brake extension openings are formed in the tangent planes at the left side and the right side of the stator base.

Preferably, the base is provided with a barring gear which is matched with the annular outer rotor to act, and a preformed hole of the barring gear is formed in the position, right opposite to the annular outer rotor, of the annular surface on the base.

Preferably, the bottom of the stator base is provided with a bottom heat radiation hole which penetrates through the circular ring surface.

Preferably, polygonal reinforcing ribs are respectively arranged on the outer rings of the circular ring surfaces of the front half part and the rear half part of the engine base.

The utility model has the advantages that: the outer rotor tractor with the heat dissipation and ventilation functions has the advantages that the stator heat dissipation holes are formed in the stator base, the rotor heat dissipation holes are formed in the annular outer rotor, the inner portion of the tractor is communicated with the front end and the rear end of the tractor respectively, an airflow passage is formed, unidirectional vortex airflow can be generated in the tractor when the tractor acts, a loop of air inlet at one side and air outlet at one side is formed by matching the stator heat dissipation holes and the rotor heat dissipation holes, heat dissipation efficiency is greatly improved, external other circuit devices are not needed for assisting ventilation, the heat dissipation holes are directly forged in production, the problem of heat dissipation and cooling is solved while material consumption is reduced, the tractor can be opened immediately, namely, the continuity of ventilation and heat dissipation is good, the stability of continuous work of the tractor is guaranteed, the process is simple, the safety and.

Drawings

Fig. 1 is a structural section view of an outer rotor traction machine with heat dissipation and ventilation functions according to an embodiment of the present invention;

fig. 2 is a main view of the external rotor traction machine with heat dissipation and ventilation functions according to the embodiment of the present invention;

fig. 3 is a perspective view of an annular outer rotor structure according to an embodiment of the present invention;

fig. 4 is a perspective view of the frame structure according to the embodiment of the present invention;

fig. 5 is a rear view of the base according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1-5, the external rotor traction machine with heat dissipation and ventilation functions in the embodiment of the present invention includes a machine base 1, a circular stator 2 disposed on the machine base 1, and a circular external rotor 4 fixed with a traction wheel 3 having a traction wheel shaft 30, the machine base 1 includes a base 10 at the bottom and a stator base 5 disposed on the base 10, a traction wheel shaft through hole 52 is disposed on the axis of a transverse cylinder 51 at the middle of the stator base 5, the top, left, and right sides of the stator base 5 on the machine base 1 are in a tangent plane structure, brake assemblies 6 are respectively mounted on the tangent planes at the left and right sides of the stator base 5, motor outlet holes 54 and brake extension openings 53 are disposed on the tangent planes at the left and right sides of the stator base 5, the circular stator 2 is sleeved on the transverse cylinder 51, and the circular external rotor 4 is sleeved outside the circular stator 2, the traction wheel shaft 30 is penetrated and connected on the traction wheel shaft penetrating hole 52 through a bearing, the end part of the stator winding 20 of the circular stator 2 is adjacent to the circular side surface of the stator base 5 and forms a certain air gap, the annular surface of the stator base 5 is provided with stator heat dissipation holes 50 which are annularly distributed by taking a traction wheel shaft through hole 52 as a circle center, the annular surface of the annular outer rotor 4 is provided with rotor heat dissipation holes 40 which are annularly distributed by taking the axis of the rotor as the center of a circle, the number of the stator heat radiation holes 50 on the stator base 5 is not less than 6, the number of the rotor heat radiation holes 40 on the annular outer rotor 4 is not less than 6, the rotor heat dissipation holes 40 and the stator heat dissipation holes 50 are oppositely arranged and matched for use, when the tractor works, the inner part of the tractor is respectively communicated with the front end and the rear end to form an airflow passage, because the tractor can produce one-way swirl air current in its when action, cooperation stator louvre 50 forms the return circuit of one side air inlet side air-out with rotor louvre 40.

In this embodiment, a strip-shaped heat dissipation rib 55 is disposed between the stator heat dissipation holes 50 on the annular surface of the stator base 5, one end of the heat dissipation rib 55 extends outward from the traction axle through hole 52, the stator heat dissipation holes 50 and the heat dissipation rib 55 are alternately arranged in pairs, and the arrangement mode can balance heat dissipation and stress on the stator base 5.

In order to improve the convenience of the traction machine in maintenance, in the embodiment, the base 1 is provided with the barring gear 7 which is matched with the annular outer rotor 4 to act, a preformed hole 11 of the barring gear 7 is formed in the annular surface of the base 10, which is opposite to the annular outer rotor 4, and a maintenance worker can connect the barring gear to the power-assisted traction machine when starting.

Further, in this embodiment, 5 bottoms of stator base be located and be equipped with the bottom louvre 56 that runs through on the ring surface, the heat that produces at the operation in-process can be discharged in a large number in the setting of bottom louvre 56, and because set up the difficult piece influence operation that gets into downwards, improve the radiating effect, effectively alleviate the current situation of the frame 1 high temperature that the braking caused.

In order to improve the structural strength and rigidity of the engine base 1, polygonal reinforcing ribs 12 are respectively arranged on the outer rings of the circular ring surfaces of the front half part and the rear half part of the engine base 1.

In addition, the embodiment does not need to be externally provided with other circuit devices for auxiliary ventilation, the radiating holes are directly forged in production, the problem of heat dissipation and cooling is solved while the material consumption is reduced, the tractor can be opened immediately, the ventilation and heat dissipation continuity is good, and the stability of continuous work of the tractor is ensured.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. External rotor hauler of area heat dissipation ventilation function, the test platform comprises a support, the ring form stator of setting on the frame, the annular external rotor together fixed with the driving sheave that has the driving sheave axle, the frame includes the base of bottom, the stator base of setting on the base, be provided with the driving sheave axle on the horizontal cylindrical axis at stator base middle part and perforate, ring form stator cup joints on horizontal cylinder, ring form external rotor cup joints in ring form stator outside, the driving sheave axle passes through the bearing cross-under and perforates at the driving sheave axle, the stator winding tip of ring form stator is adjacent and form certain air gap with the annular side of stator base, its characterized in that: the annular surface of the stator base is provided with stator radiating holes which are annularly distributed by taking the traction wheel shaft through hole as a circle center, and the annular surface of the annular outer rotor is provided with rotor radiating holes which are annularly distributed by taking the rotor shaft center as the circle center.

2. The external rotor traction machine with the heat dissipation and ventilation function according to claim 1, wherein: the stator base on stator louvre be no less than 6, cyclic annular outer rotor on rotor louvre be no less than 6, rotor louvre and stator louvre set up the cooperation relatively and use.

3. The external rotor traction machine with the heat dissipation and ventilation function according to claim 2, wherein: the stator base is characterized in that strip-shaped heat dissipation ribs are arranged among the stator heat dissipation holes in the annular surface of the stator base, one ends of the heat dissipation ribs extend outwards from the through holes of the traction sheave shaft, and the stator heat dissipation holes and the heat dissipation ribs are alternately arranged in pairs.

4. The external rotor traction machine with the heat dissipation and ventilation function according to claim 3, wherein: the motor base is characterized in that the top end, the left side and the right side of the stator base on the motor base are of tangent plane structures, brake assemblies are respectively installed on tangent planes on the left side and the right side of the stator base, and motor wire outlet holes and brake extension openings are formed in the tangent planes on the left side and the right side of the stator base.

5. The external rotor traction machine with the heat dissipation and ventilation function according to claim 4, wherein: the base is provided with a barring gear which is matched with the annular outer rotor to act, and a preformed hole of the barring gear is formed in the position, right opposite to the annular outer rotor, of the annular surface on the base.

6. The external rotor traction machine with the heat dissipation and ventilation function according to claim 5, wherein: and the bottom of the stator base is provided with a bottom heat dissipation hole which penetrates through the circular ring surface.

7. The external rotor traction machine with the heat dissipation and ventilation function as claimed in claim 6, wherein: the outer rings of the circular ring surfaces of the front half part and the rear half part of the engine base are respectively provided with a polygonal reinforcing rib.