CN217824467U

CN217824467U - Motor rotor structure for compressor

Info

Publication number: CN217824467U
Application number: CN202221094608.1U
Authority: CN
Inventors: 尹伟锋; 张青; 王小平
Original assignee: Bitzer Rotary Compressor Jiangsu Co ltd
Current assignee: Bitzer Rotary Compressor Jiangsu Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-11-15
Anticipated expiration: 2032-05-09

Abstract

The utility model provides a motor rotor structure that compressor was used, including rotor core, the mounting hole has been seted up at rotor core's middle part, the inside interlude of mounting hole is connected with the pivot, rotor core's surface is equipped with coupling mechanism all around, coupling mechanism internally mounted has the permanent magnet magnetic pole, the rotor clamping ring is installed at the rotor core both ends, heat dissipation mechanism is installed at rotor core's both ends, coupling mechanism through being equipped with, when needs are changed the permanent magnet magnetic pole, take out the T-slot on I-shaped connecting pin follow rotor core and permanent magnet magnetic pole surface through using extracting tool, the T-slot of seting up rotor core surface clears up back, alternate the T-slot of seting up the I-shaped connecting pin on rotor core surface, it can accomplish fixedly to alternate the T-slot of new permanent magnet magnetic pole surface after corresponding with the I-shaped connecting pin, replace traditional fixed installation, can's shortcoming of changing.

Description

Motor rotor structure for compressor

Technical Field

The utility model relates to the technical field of motors, specifically be a motor rotor structure that compressor was used.

Background

The rotor of an electric machine is a part which rotates in the electric machine in popular terms. The motor rotor is divided into an inner rotor rotation mode and an outer rotor rotation mode. The inner rotor rotates in such a way that a core body in the middle of the motor is a rotating body, and torque is output or energy is input. The outer rotor rotation mode is that the motor outer body is used as a rotating body, and different modes are convenient for application in various occasions. The surface of the existing motor rotor structure for the compressor is provided with permanent magnet magnetic poles in a fixed mode, and the magnetism of the permanent magnet can gradually decay under a long-time high-temperature running state, so that the output performance is influenced by increasing the power consumption, the permanent magnet cannot be replaced independently in a fixed connection mode, the cost is increased by integrally replacing the permanent magnet, and the traditional rotor has poor heat dissipation performance and is also a factor causing the permanent magnet to decline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor rotor structure that compressor was used to current motor rotor structure surface that the solution above-mentioned background art provided adopts fixed mode to install the permanent magnet magnetic pole, because the decay can appear gradually in the magnetism of permanent magnet under long-time high temperature running state, just so make to increase the consumption influence output performance, fixed connection's mode can't be changed alone, and the whole permanent magnet of changing increases the cost, and the poor problem of traditional rotor heat dispersion.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a motor rotor structure that compressor was used, includes rotor core, the mounting hole has been seted up at rotor core's middle part, the inside interlude of mounting hole is connected with the pivot, rotor core's surface is equipped with coupling mechanism all around, coupling mechanism internally mounted has the permanent magnet magnetic pole, the rotor clamping ring is installed at rotor core both ends, heat dissipation mechanism is installed at rotor core's both ends.

As a further description of the present invention: the connecting mechanism comprises T-shaped grooves formed in the surfaces of the rotor core and the permanent magnet magnetic poles, the groove depth of each T-shaped groove is the same, an I-shaped connecting pin is arranged between the two T-shaped grooves, and the I-shaped connecting pins are the same as the T-shaped grooves formed in the surfaces of the rotor core and the permanent magnet magnetic poles.

As a further description of the present invention: the heat dissipation mechanism comprises two heat dissipation discs which are sleeved on the surface of the rotating shaft, the surfaces of the heat dissipation discs are fixedly connected with a plurality of heat dissipation blades, and heat dissipation holes are formed in the surfaces of the heat dissipation discs, located among the heat dissipation blades in a penetrating mode.

For further description of the invention: and convection holes are formed in the surfaces of the rotor core and the rotor pressing ring in a penetrating mode, and the convection holes and the heat dissipation holes are correspondingly installed.

As a further description of the present invention: the surface of pivot is located heat dissipation dish one side and has seted up the annular groove, the inside of annular groove is inlayed and is equipped with spacing spring ring.

As a further description of the present invention: and magnetic isolation coating layers are coated on both sides of the magnetic poles of the permanent magnets.

As a further description of the present invention: the radiating plate and the radiating blades are integrally stamped by aluminum sheets.

As a further description of the invention: the both ends of pivot all are equipped with the bearing, the one end of pivot is spline structure.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) Through the connecting mechanism, when the permanent magnet magnetic pole needs to be replaced, the I-shaped connecting pin is taken out from the T-shaped grooves in the surfaces of the rotor core and the permanent magnet magnetic pole by using a disassembling tool, the T-shaped groove formed in the surface of the rotor core is cleaned, the I-shaped connecting pin is inserted into the T-shaped groove formed in the surface of the rotor core, and the new T-shaped groove in the surface of the permanent magnet magnetic pole is inserted into the I-shaped connecting pin after corresponding to the T-shaped groove, so that fixation can be completed, the traditional fixed installation is replaced, and the defect that replacement cannot be performed is overcome;

(2) Through the heat dissipation mechanism who is equipped with, drive the heat dissipation dish rotation that the surface cover was established when the pivot rotates, the heat dissipation dish drives the radiating blade of surface connection and follows the rotation and produce the air current, and the air current flows to the discharge orifice that rotor core and rotor clamping ring surface were seted up from the louvre, takes away the absorptive heat of rotor core when the air current passes through fast, plays certain radiating effect.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the connecting mechanism of the present invention;

fig. 3 is a schematic structural view of the heat dissipation mechanism of the present invention;

fig. 4 is a schematic side view of the present invention.

In the figure: 1. a rotor core; 2. mounting holes; 3. a rotating shaft; 4. a connecting mechanism; 41. a T-shaped slot; 42. an I-shaped connecting pin; 5. a permanent magnet pole; 51. a magnetic isolation coating layer; 6. pressing a ring by a rotor; 7. a heat dissipation mechanism; 71. a heat dissipation plate; 72. a heat dissipating fin; 73. heat dissipation holes; 8. a convection hole; 9. an annular groove; 10. a limit spring ring; 11. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a motor rotor structure that compressor was used, includes rotor core 1, and mounting hole 2 has been seted up at rotor core 1's middle part, and the inside interlude of mounting hole 2 is connected with pivot 3, and rotor core 1's surface is equipped with coupling mechanism 4 all around, and coupling mechanism 4 internally mounted has permanent magnet magnetic pole 5, and rotor clamping ring 6 is installed at rotor core 1 both ends, and heat dissipation mechanism 7 is installed at rotor core 1's both ends.

In this embodiment: the connecting mechanism 4 comprises T-shaped grooves 41 formed in the surfaces of the rotor core 1 and the permanent magnet magnetic poles 5, the grooving depths of the T-shaped grooves 41 are the same, an I-shaped connecting pin 42 is arranged between the two T-shaped grooves 41, and the size of the I-shaped connecting pin 42 is the same as that of the T-shaped grooves 41 formed in the surfaces of the rotor core 1 and the permanent magnet magnetic poles 5.

When in specific use: when the permanent magnet magnetic pole 5 needs to be replaced, the I-shaped connecting pin 42 is taken out from the T-shaped grooves 41 on the surfaces of the rotor core 1 and the permanent magnet magnetic pole 5 by using a detaching tool, the T-shaped groove 41 formed in the surface of the rotor core 1 is cleaned, the I-shaped connecting pin 42 is inserted into the T-shaped groove 41 formed in the surface of the rotor core 1, and the new T-shaped groove 41 in the surface of the permanent magnet magnetic pole 5 is inserted into the I-shaped connecting pin 42 to be fixed, so that the defect that the traditional fixed installation cannot be replaced is overcome.

In this embodiment: the heat dissipation mechanism 7 comprises two heat dissipation discs 71 sleeved on the surface of the rotating shaft 3, a plurality of heat dissipation blades 72 are fixedly connected to the surfaces of the heat dissipation discs 71, heat dissipation holes 73 are formed in the surfaces, located between the heat dissipation blades 72, of the heat dissipation discs 71 in a penetrating mode, convection holes 8 are formed in the surfaces, located between the rotor core 1 and the rotor pressing ring 6, of the rotor core 1 in a penetrating mode, the convection holes 8 correspond to the heat dissipation holes 73 in installation, and the heat dissipation discs 71 and the heat dissipation blades 72 are made of aluminum sheets in an integrated punching mode.

When in specific use: the heat dissipation disc 71 which is sleeved on the surface is driven to rotate when the rotating shaft 3 rotates, the heat dissipation disc 71 drives the heat dissipation blades 72 which are connected with the surface to rotate along with the rotating shaft and generate air flow, the air flow flows to the convection hole 8 which is formed in the surfaces of the rotor core 1 and the rotor pressing ring 6 from the heat dissipation holes 73, the air flow takes away the heat absorbed by the rotor core 1 when passing through quickly, a certain heat dissipation effect is achieved, and the heat dissipation disc 71 and the heat dissipation blades 72 which are made of integrally stamped aluminum sheets can absorb and dissipate heat well to achieve a good cooling effect.

In this embodiment: an annular groove 9 is formed in the surface of the rotating shaft 3 on one side of the heat dissipation disc 71, and a limiting spring ring 10 is embedded in the annular groove 9.

When in specific use: the annular groove 9 that the surface of the rotating shaft 3 was seted up is used for embedding and placing the limiting spring ring 10, and the limiting spring ring 10 plays the effect of fixing the heat dissipation disc 71 and prevents the heat dissipation disc 71 from falling off.

In this embodiment: both sides of the permanent magnet pole 5 are coated with magnetic isolation coating layers 51.

When in specific use: the magnetic isolation coating layers 51 coated on the two sides of the permanent magnet magnetic pole 5 can prevent the magnetic flux of the permanent magnet from short circuit, and ensure the normal use of the permanent magnet magnetic pole 5.

In this embodiment: both ends of the rotating shaft 3 are sleeved with bearings 11, and one end of the rotating shaft 3 is of a spline structure.

When in specific use: the bearing 11 that the 3 both ends cover of pivot was established is convenient for install, and 3 one end of pivot are spline structure for more stable connection between output and the connector.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a motor rotor structure that compressor was used, includes rotor core (1), its characterized in that: mounting hole (2) have been seted up at the middle part of rotor core (1), the inside interlude of mounting hole (2) is connected with pivot (3), the surface of rotor core (1) is equipped with coupling mechanism (4) all around, coupling mechanism (4) internally mounted has permanent magnet magnetic pole (5), rotor clamping ring (6) are installed at rotor core (1) both ends, heat dissipation mechanism (7) are installed at the both ends of rotor core (1).

2. The motor rotor structure for a compressor according to claim 1, wherein: coupling mechanism (4) are including seting up T-slot (41) on rotor core (1) and permanent magnet magnetic pole (5) surface, the fluting degree in T-slot (41) is the same, two be equipped with I-shaped connecting pin (42) between T-slot (41), I-shaped connecting pin (42) are the same with T-slot (41) size that rotor core (1) and permanent magnet magnetic pole (5) surface were seted up.

3. The rotor structure of an electric motor for a compressor according to claim 1, wherein: the heat dissipation mechanism (7) comprises two heat dissipation discs (71) sleeved on the surface of the rotating shaft (3), the surface of each heat dissipation disc (71) is fixedly connected with a plurality of heat dissipation blades (72), and the surface of each heat dissipation disc (71) is located between the heat dissipation blades (72) and penetrates through the heat dissipation holes (73).

4. The motor rotor structure for a compressor according to claim 1, wherein: convection holes (8) are formed in the surfaces of the rotor core (1) and the rotor pressing ring (6) in a penetrating mode, and the convection holes (8) and the heat dissipation holes (73) are correspondingly installed.

5. The rotor structure of an electric motor for a compressor according to claim 1, wherein: annular groove (9) have been seted up to the surface of pivot (3) lie in heat dissipation dish (71) one side, the inside of annular groove (9) is inlayed and is equipped with spacing spring coil (10).

6. The rotor structure of an electric motor for a compressor according to claim 1, wherein: and magnetic isolation coating layers (51) are coated on two sides of the permanent magnet magnetic pole (5).

7. A rotor structure of a motor for a compressor according to claim 3, wherein: the radiating plate (71) and the radiating blades (72) are made of aluminum sheets and integrally stamped.

8. The motor rotor structure for a compressor according to claim 1, wherein: both ends of pivot (3) all are overlapped and are equipped with bearing (11), the one end of pivot (3) is spline structure.