CN218005989U

CN218005989U - Motor rotor and motor

Info

Publication number: CN218005989U
Application number: CN202222040921.3U
Authority: CN
Inventors: 杨益见; 唐煜皓; 代杨仲
Original assignee: Sichuan Sunrain Sign & Display System Co ltd
Current assignee: Sichuan Sunrain Sign & Display System Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-12-09
Anticipated expiration: 2032-08-03

Abstract

The utility model relates to the technical field of motors, concretely relates to electric motor rotor and motor. Wherein electric motor rotor includes the annular body to and two at least inlet channels that run through the annular body completely that set up at annular body outside both ends face, wherein the motor still includes motor stator, fixing device, transmission beyond above-mentioned electric motor rotor, wherein has seted up a plurality of bosss in fixing device's mounting upper end, the utility model is used for improve the radiating efficiency of motor during operation, mainly realize the heat conversion in the motor through the inlet channel on the electric motor rotor to and a plurality of bosss of setting in the mounting upper end increase heat radiating area and make the radiating efficiency of motor during operation promote.

Description

Motor rotor and motor

Technical Field

The utility model relates to the technical field of electric machines, especially an electric motor rotor and motor.

Background

The motor is through turning into the device of mechanical energy with the electric energy, and the theory of operation is with two rotatory magnetic field effects and rotors that produce of stator winding, forms the rotatory moment of torsion of magnetoelectric power, and along with long-time use, overheated can appear in the motor inside, and then influence the operation and the life-span of motor, the motor is after the circular telegram, the inside coil circular telegram produces magnetic field, make the rotor rotatory with coil outer magnet piece interact, turn into mechanical energy with the electric energy, and the outer winding coil of stator produces high temperature if the heat dissipation difference can influence the motor operation, reduce motor life, the utility model provides an electric motor rotor and motor has improved the radiating effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the radiating effect to appearing to current motor is unsatisfactory, and motor life loss is fast, provides a electric motor rotor and motor for reduce the overheated phenomenon that the motor appears when the operation, promote the radiating efficiency of motor, promote the life of motor, also promote the aesthetic property of motor simultaneously, the utility model discloses can be used to the unmanned aerial vehicle field.

In order to realize the purpose, the utility model discloses a technical scheme be:

the utility model provides an electric motor rotor, includes annular body, and its annular body lateral wall is equipped with two at least inlet air channel, and inlet air channel runs through completely annular body, inlet air channel are equipped with the air inlet boss towards the air intake of annular body outer end one side.

The utility model is used for improve the radiating efficiency of motor during operation, because be equipped with the air inlet boss at inlet air channel outside air intake, make the inside amount of wind of entering motor increase through the air inlet boss, the air current is introduced through the inlet air channel that annular body both sides wall set up to motor during operation and carries out the heat conversion to motor inside and reach radiating purpose.

As the utility model discloses an optimal scheme, inlet air channel runs through and diminishes for annular body outside-in gradually in annular body and inlet air channel cross-sectional size for the inside wind speed of entering motor accelerates.

As the utility model discloses a preferred scheme, annular body annular lateral wall has seted up two at least slopes and has been the inlet air channel of wedge form downwards, and the wind energy that the air intake flowed in directly reachs inside the motor.

As the utility model discloses an optimal scheme, the annular body includes that two are central symmetry inlet air channel for it is more even to dispel the heat, and the outward appearance of annular body is also more pleasing to the eye.

As the utility model discloses a preferred scheme, the air inlet leads to the size and is wide A: 5 mm-30 mm, thickness B is: 1 mm-6 mm, depth C is: 5mm ~ 20mm adopts this size because when the inside wind of motor flows in from the macrostoma end when the macrostoma end flows in the end of the macrostoma, can increase the inside wind speed of inflow motor, and air inlet boss top can also set up shelters from, prevents that the particle impurity that the top falls from colliding with the boss.

The utility model also discloses a motor, including foretell electric motor rotor, the transmission end is connected to the electric motor rotor upper end, motor stator is connected to transmission end upper end.

The utility model relates to a motor, the multi-purpose unmanned aerial vehicle field that is used for, the outside winding coil of motor stator produces the electric current and forms the magnetic field after the circular telegram of motor, it is rotatory to take place with the magnet piece interact on the stiff end steel ring inner wall, the transmission end of electric motor rotor top is used for driving the rotation of center pin, and be used for being connected motor stator bearing with the mounting of motor stator butt, its stop ring of the bearing below of being connected with the mounting, play the fixed action in order to prevent that the bearing from drunkenness in the bearing frame in the operation when the installation.

As the preferred scheme of the utility model, bolted connection transmission end is passed through to its electric motor rotor upper end for the transmission of power.

As the utility model discloses a preferred scheme, its electric motor rotor passes through mounting fixed connection with first bearing and second bearing for the motor is at its internal device rigidity of during operation.

As the utility model discloses an optimal scheme, its motor stator outside is equipped with stiff end steel ring and has the certain distance for motor stator, still is equipped with a plurality of magnet pieces at stiff end steel ring inner wall, and its stiff end steel ring setting is for the inside spare part of better protection motor, because it also is favorable to the heat dissipation of motor for the metal material.

As the utility model discloses an optimal scheme, a plurality of bosss are seted up to the mounting up end, and all bosss all set up for mount up end center normal interval, thereby set up the boss and be the surface area increase heat radiating area for the increase mounting up end also prevent simultaneously that motor work from having impurity to fall into the motor from the up end and inside causing the influence to motor life.

As the utility model discloses an optimal scheme, wherein mounting up end bottom is connected with motor insulation piece and electric motor rotor and has the certain distance for the heat dissipation of airing exhaust and prevent that upper portion impurity from falling into in the motor.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. a motor rotor, through the boss of inlet air duct and the inlet air duct outside air intake that the annular body was seted up, the intake when being convenient for promote the motor function, the motor passes through the air intake air at the during operation, is airing exhaust from the space between rotor and the insulating gasket, forms a circulation, improves the radiating efficiency.

2. A motor, seted up a plurality of bosss at electric motor rotor mounting up end, all boss relatively fixed piece center normal intervals set up, compare the method that the tradition directly punched on the mounting terminal surface, this method reaches radiating purpose through seting up array boss increase surface area, also prevent simultaneously that during the during operation has impurity to fall into the motor, increased the life of motor.

Drawings

Fig. 1 is a schematic structural view of the motor rotor of the present invention.

Fig. 2 is a schematic structural view of the motor rotor of the present invention.

Fig. 3 is a partial schematic view of the air inlet channel of the present invention.

Fig. 4 is a partial schematic view of the air inlet of the present invention.

Fig. 5 is a schematic sectional view of the air intake channel of the present invention.

Fig. 6 is a schematic view of the motor structure of the present invention.

Fig. 7 is a schematic top view of the motor of the present invention.

Fig. 8 is a schematic cross-sectional view of the motor of the present invention.

Fig. 9 is an exploded view of the connection structure of the first fixing ring and the second fixing ring of the present invention.

Fig. 10 is an exploded view of the motor structure of the present invention.

Fig. 11 is a circular display diagram of air intake and exhaust of the present invention.

An icon: 1-fixing end steel ring; 2-air inlet bosses; 3-air inlet channel; 4-motor insulation sheet; 5-a fixing piece; 6-boss; 7-a second retaining ring; 8-a first retaining ring; 9-an annular body; 10-a pin; 11-bolts; 12-a motor stator; 13-a transmission end; 14-a first stop ring; 15-a second stop ring; 16-a second bearing; 17-a first bearing; 18-a magnet piece; 19-countersunk head bolts; 31-air inlet.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1:

as shown in fig. 1-4, the utility model provides an electric motor rotor, including annular body 9, wherein inlet air duct 3 has been seted up at annular body 9 outside both ends and inlet air duct 3 runs through annular body 9 completely, and inlet air duct 3 sets up for the 9 outside ends of annular body and compares in inside big air intake 31.

Wherein the air inlet channel 3 is in a downward inclined wedge shape relative to the outer side of the annular body 9, so that wind energy entering from the air inlet channel 3 can reach the inside of the motor conveniently to realize cooling. The cross section of the air inlet channel 3 is from outside to inside and is from large to small relative to the annular body 9, and the air quantity flowing in when the air flows into the small opening end from the large opening end is unchanged, so that the flow speed of the air is accelerated.

As shown in fig. 3-5, the size of the air inlet channel 3 is: 5 mm-30 mm, thickness B is: 1 mm-6 mm, depth C is: 5mm ~ 20mm, the setting is in order to let wind flow to the little mouth end from big mouth end for the wind speed that flows to the inside of motor accelerates, reaches better radiating effect.

The air inlet boss 2 is arranged at one end of the outer side of the air inlet 31, and when air flows into the motor through the air inlet 31, the air entering the motor is increased due to the effect of the air inlet boss 2 on intercepting the air flowing from the side surface of the annular body 9, and the air quantity is increased to improve the cooling effect.

Therefore, the motor rotor is provided with the air inlet boss 2 arranged on one side of the air inlet 31 outside the air inlet channel 3 through the air inlet channel 3 arranged on the outer wall of the annular body 9, the air quantity flowing into the motor when the motor operates is improved, when the motor operates, air is fed through the air inlet 31, heat conversion is carried out in the motor, and then air is exhausted from a gap between the motor stator 12 and the motor insulating gasket 4, so that a heat dissipation circulation is formed, the heat dissipation efficiency is improved, when the motor rotor is applied, the heat dissipation can be avoided in other positions above the motor rotor, such as holes formed in a cover plate, and the motor stator 12 can be effectively prevented from operating, impurities on the motor stator can fall into the motor to damage the motor.

Example 2:

describe through fig. 6-9, the utility model provides a motor, including embodiment 1's electric motor rotor, electric motor rotor's 9 upper ends of annular body are connected with transmission end 13 through

bolt

19, 13 outside butt motor stator 12 of transmission end, the outside winding coil of motor stator 12 is equipped with stiff end steel ring 1 and stiff end steel ring 1 in the outside and has certain clearance distance for motor stator 12, motor stator 12 passes through mounting 5 and first bearing 17 and 16 fixed connection of second bearing, first bearing 17 is equipped with first retaining ring 14 and second retaining ring 15 respectively with the lower extreme of second bearing 16.

The upper end surface of the fixing member 5 is provided with a plurality of bosses 6, all the bosses 6 are arranged at intervals relative to the center normal of the upper end surface of the fixing member 5, and the number of the bosses 6 is not limited by the measure for increasing the surface area of the upper end surface of the fixing member 5 so as to increase the heat dissipation area.

The inner wall of the fixed end steel ring 1 is connected with a plurality of magnet sheets 18, which are used for generating current by a coil wound outside the motor stator 12 after being electrified to form a magnetic field, and the magnetic field and the magnet sheets 18 interact to rotate.

The above-mentioned fixed part 5 is connected with the second fixing ring 7 through the pin 10 on the inside of the upper end, and the second fixing ring 7 is connected with the first fixing ring 8 through the bolt 11, this is for the fixing device, prevents the vibration from transmitting to the electrical machinery directly.

The motor insulation sheet 4 is arranged below the annular part on the upper end face of the fixing part 5, and a certain gap is reserved between the motor insulation sheet and the motor stator 12, so that air entering from the air inlet channels 3 on the two sides of the annular body 9 is exhausted through the gap after heat conversion is carried out inside the motor, and cooling circulation is achieved.

Therefore, when the motor works through the motor stator 12, the current generated by the externally wound coil interacts with the external magnet sheets 18 to drive the fixed end steel ring 1 to rotate, thereby driving the annular body 9 to rotate to realize the work of the device for installing the motor, after the motor is electrified, the externally wound coil of the motor stator 12 is electrified to generate a magnetic field, and the annular body 9 is driven to work because the fixed end steel ring 1 which has a certain interval with the motor stator 12 is arranged outside the motor stator 12 and the inner wall of the fixed end steel ring 1 is provided with a plurality of magnet sheets 18, which interact with the magnetic field generated by the motor stator 12, and the upper end of the motor fixing piece 5 is provided with a plurality of bosses 6 which are arranged at intervals relative to the center normal of the upper end surface of the fixing piece 5, thereby improving the heat dissipation effect when the motor works.

As shown in fig. 10-11, the motor is provided with a plurality of bosses 6 on the upper end surface of the motor rotor fixing piece 5, and all the bosses 6 are arranged at intervals relative to the normal line of the center of the fixing piece 5, compared with the traditional method of directly punching holes on the end surface of the fixing piece 5, the method increases the surface area by arranging the array bosses 6 to achieve the purpose of heat dissipation, and simultaneously prevents impurities from falling into the motor during working, so that the service life of the motor is prolonged, and the wind flows into the wind through the air inlet channel 3 arranged on the outer wall of the motor annular body 9 and then flows out from the gap between the motor stator 12 and the motor insulating gasket 4, thereby realizing heat dissipation circulation.

Fig. 10 shows an explosion structure of the motor, so that the motor generates a magnetic field by the current released by the motor stator 12 during operation, and the magnet pieces 18 on the inner wall of the steel ring 1 at the fixed end of the motor make the motor stator 12 start to rotate and transmit the mechanical energy to the central shaft.

As shown in fig. 11, during the heat dissipation cycle of the motor during operation, air enters the motor from the air inlet 31 to absorb heat and cool, and is finally discharged from the gap between the motor stator 12 and the motor insulating spacer 4.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides an electric motor rotor, includes annular body (9), its characterized in that, the annular body lateral wall is equipped with two at least inlet air channel (3), just inlet air channel (3) run through completely annular body (9), inlet air channel (3) are equipped with air inlet boss (2) towards air intake (31) of outer end one side.

2. An electric machine rotor as claimed in claim 1, characterized in that: the cross section of the air inlet channel (3) is gradually reduced from outside to inside relative to the annular body (9).

3. An electric machine rotor, according to claim 2, characterized in that said air inlet channel (3) is wedge-shaped in a downward inclination.

4. An electric machine rotor, in accordance with claim 1, characterized in that the ring-shaped body (9) comprises at least two centrosymmetric said inlet air channels (3).

5. An electric machine rotor according to any of claims 1-4, characterized in that the dimensions of the inlet air channel (3) are as follows, the width A being: 5 mm-30 mm, thickness B is: 1 mm-6 mm, depth C is: 5 mm-20 mm.

6. An electric machine, characterized in that it comprises an electric machine rotor according to any of claims 1-5, which is connected with a drive end (13) at the upper end, and the drive end (13) is connected with a machine stator (12) at the upper end.

7. An electric machine according to claim 6, characterized in that the upper end of the ring-shaped body (9) is connected with a transmission end (13), the outer side of the transmission end (13) is connected with a motor stator (12), the inner side of the motor stator (12) is connected with a fixing member (5), the inner side of the fixing member (5) is connected with a first bearing (17), the lower side of the first bearing (17) is connected with a first stop ring (14), the lower end of the first stop ring (14) is connected with a second bearing (16), the lower end of the second bearing (16) is connected with a second stop ring (15), the inner side of the upper end of the fixing member (5) is provided with a hole, the inner side of the upper end of the fixing member (5) is connected with a second fixing ring (7) through a pin (10), and the inner side of the second fixing ring (7) is provided with a hole and is connected with the first fixing ring (8) through a bolt.

8. A machine as claimed in claim 7, characterized in that the upper end surface of the stationary part (5) is provided with a plurality of bosses (6), all the bosses (6) being arranged at intervals in relation to the center normal direction of the stationary part (5).

9. An electric machine according to claim 7, characterized in that the fixed end steel ring (1) is arranged outside the stator (12) and the fixed end steel ring (1) is spaced relative to the stator (12), and the inner wall of the fixed end steel ring (1) is connected with a plurality of magnet pieces (18).

10. An electric machine according to claim 7, characterized in that the stator (5) has a motor insulation sheet (4) attached to the bottom of its upper end face, and that there is a gap between the motor insulation sheet (4) and the upper end of the motor stator (12).