CN208209735U

CN208209735U - A kind of built-in iron-core-free disc motor to radiate

Info

Publication number: CN208209735U
Application number: CN201820960169.5U
Authority: CN
Inventors: 冯政杰
Original assignee: ZHEJIANG XINGYU INDUSTRY AND TRADE Co Ltd
Current assignee: ZHEJIANG XINGYU INDUSTRY AND TRADE Co Ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2018-12-07
Anticipated expiration: 2028-06-21

Abstract

The utility model discloses the iron-core-free disc motors to radiate built in one kind, including shaft, bearing, rotor core and stator, the rotor core is mounted in the shaft, the shaft is rotatably connected on the bearing, stator coil is provided on the stator, it is characterized by: the shaft is hollow shaft, the stator exterior is provided with shell, the stator shaft orientation one encloses uniformly distributed first ventilation hole, axial one encloses uniformly distributed second ventilation hole and third venting hole in the shaft, centrifugal fan is installed in the shaft, the centrifugal fan is arranged between two rotor cores, the shaft drives the centrifugal fan rotation when work, internal gas is detached to the inner channel for flowing to and being formed between the stator outside the rotor core, it is passed on the outside of the stator and in the shell by first ventilation hole again The outer passage formed between side is back in the shaft finally by second ventilation hole.

Description

A kind of built-in iron-core-free disc motor to radiate

Technical field

The utility model relates to a kind of disc type electric machines, more particularly, to the iron-core-free disc motor to radiate built in one kind.

Background technique

Disc type electric machine is called dish-style motor, have the characteristics that it is small in size, light-weight, high-efficient, the rotor of general motor and Stator is inside and outside set dressing, and disc type electric machine is in order to thin, and on flat substrate, rotor covers on stator stator, general fixed Son is coil, and rotor is permanent magnet or the disk for being stained with permanent magnet.General iron-core-free disc motor is in the course of work on the market In, without good cooling mechanism inside motor, the inner space heat dissipation effect of sealing is very poor, and internal thermal accumlation can exist Burn out the risk of motor.Due to the presence of problem above, it is necessary to be improved for we.

Summary of the invention

In view of the deficiencies of the prior art, the utility model provides one kind the built-in iron-core-free disc motor to radiate, and structure is tight It gathers, occupies little space, use flexibly installs centrifugal fan inside motor, by the setting of inside and outside double case, constitutes in one The wind path of portion's circulation can make internal current density promote 1.5 times or more, and can be effectively carried out internal heat dissipating, greatly Safety and reliability when motor work is improved greatly.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of built-in coreless disc type electricity to radiate Machine, including shaft, bearing, rotor core and stator, the rotor core are mounted in the shaft, the shaft rotation connection On the bearing, stator coil is provided on the stator, the shaft is hollow shaft, and the stator exterior is provided with outer Shell, the stator shaft orientation one enclose uniformly distributed first ventilation hole, and first ventilation hole is located at the stator coil and the rotor iron Position between core, axial one encloses uniformly distributed second ventilation hole and third venting hole in the shaft, and second ventilation hole is located at two Position between a rotor core, position of the third venting hole between the stator and the shell are described Centrifugal fan is installed, the centrifugal fan is arranged between two rotor cores, the shaft driving of when work in shaft Internal gas, is detached the inside for flowing to and being formed between the stator outside the rotor core by the centrifugal fan rotation Channel, then the outer passage formed between on the outside of the stator and on the inside of the shell is passed to by first ventilation hole, It is back in the shaft finally by second ventilation hole.Such setting is passed to internal high-temperature gas The outside of stator carries out heat exchange by shell, then is back at centrifugal fan, avoids high-temperature gas and remains in high temperature The rotor core of high fever and the position of stator inner wall, can effectively radiate to motor.

In above-mentioned technical proposal, it is preferred that the bearing both ends are provided with plug.In this way, due to internal circulated air The design on road, the bearing are hollow shaft, and the both ends of the hollow shaft are sealed, external fuel gas and dust is avoided to enter motor The inside.

In above-mentioned technical proposal, it is preferred that the outer cage inner and outer wall is provided with cooling fin.In this way, following On the basis of ring wind path, it is transmitted to the heat issued inside motor more effectively on cooling fin, then be dispersed into week through cooling fin It encloses in air.

The beneficial effects of the utility model are: the shaft drives the centrifugal fan rotation when work, by internal gas Body detaches the channel flowed to outside the rotor core and on the inside of the stator, recirculation to the stator outside and the shell The channel of inside is back in the shaft by second ventilation hole, constitutes the wind path recycled in four groups.It is such to set It sets, the outside for alloing internal high-temperature gas to be passed to stator is back at centrifugal fan again, avoids high-temperature gas continuation The rotor core of high temperature high fever and the position of stator inner wall are rested on, can effectively be radiated to motor.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the front section view of the utility model.

Fig. 2 is the partial enlarged view in Fig. 1 at A.

Fig. 3 is the front view of the utility model.

Fig. 4 is another visual angle figure of the utility model.

In figure, 1. shafts, 2. bearings, 3. rotor cores, 4. stators, 41. stator coils, 5. shells, 6. centrifugal fans, 7. Outer passage, 71. inner channels, 8. plugs, 9. first ventilation holes, 10. second ventilation holes, 11. third venting holes.

Specific embodiment

In figures 1-4, a kind of built-in iron-core-free disc motor to radiate, including shaft 1, bearing 2, rotor core 3 and fixed Son 4, the rotor core 3 is mounted on 1 in the shaft, and the shaft 1 is rotatably connected on the bearing 2, on the stator 4 It is provided with stator coil 41, the shaft 1 is hollow shaft, and shell 5 is provided with outside the stator 4, and the stator 4 axial one encloses Uniformly distributed first ventilation hole 9, first ventilation hole 9 position between the stator coil 41 and the rotor core 3 are described Axial one encloses uniformly distributed second ventilation hole 10 and third venting hole 11 in shaft 1, and second ventilation hole 10 turns positioned at described in two Position between sub- iron core 3, position of the third venting hole 11 between the stator 4 and the shell 5, the shaft Centrifugal fan 6 is installed, the centrifugal fan 6 is arranged between two rotor cores 3, and when work, the shaft 1 drove on 1 The centrifugal fan 6 rotates, and internal gas is detached to flow to is formed between 3 outside of rotor core and the stator 4 Inner channel 71, then be passed to by first ventilation hole 9 and to be formed between 4 outside of the stator and 5 inside of the shell Outer passage 7 is back in the shaft 1 finally by second ventilation hole 10.

Wherein, 1 both ends of bearing are provided with plug 8.In this way, due to the design of internal circulating air duct, the axis It holds and avoids external fuel gas and dust from entering inside motor the both ends sealing of the hollow shaft for hollow shaft.

Claims

1. a kind of built-in iron-core-free disc motor to radiate, including shaft, bearing, rotor core and stator, the rotor core It is mounted in the shaft, the shaft is rotatably connected on the bearing, and stator coil, feature are provided on the stator Be: the shaft is hollow shaft, and the stator exterior is provided with shell, and the stator shaft orientation one encloses uniformly distributed first ventilation hole, First ventilation hole position between the stator coil and the rotor core, an axial circle uniformly distributed the in the shaft Two ventilation holes and third venting hole, second ventilation hole are located at the position between two rotor cores, and the third is logical Position of the air holes between the stator and the shell installs centrifugal fan, the centrifugal fan setting in the shaft Between two rotor cores, when work, the shaft drove the centrifugal fan rotation, and internal gas is detached stream The inner channel formed between the stator outside to the rotor core, then described in being passed to by first ventilation hole The outer passage formed between on the outside of stator and on the inside of the shell, is back to the shaft finally by second ventilation hole It is interior.

2. the built-in iron-core-free disc motor to radiate according to claim 1, it is characterised in that: the bearing both ends setting There is plug.

3. the built-in iron-core-free disc motor to radiate according to claim 1, it is characterised in that: the outer casing inner wall and outer Wall is provided with cooling fin.