CN220067058U

CN220067058U - Sealed high-efficiency three-phase asynchronous motor

Info

Publication number: CN220067058U
Application number: CN202321559940.5U
Authority: CN
Inventors: 邱国鹏
Original assignee: Dayi Motor Co ltd
Current assignee: Dayi Motor Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-21
Anticipated expiration: 2033-06-19

Abstract

The utility model discloses a sealed high-efficiency three-phase asynchronous motor, which comprises a shell, a front end cover and a rear end cover, wherein the front end and the rear end of the shell are respectively and fixedly provided with the front end cover and the rear end cover, the inner side of the shell is fixedly provided with a motor winding, the inner side of the motor winding is provided with a rotor, and the inner side of the rotor is fixedly connected with a main shaft; further comprises: the junction box is connected to the outer side of the shell; the two groups of bearings are respectively arranged at the central positions of the front end cover and the rear end cover, and an outer sealing plate and an inner sealing plate are respectively arranged at the left side and the right side of each bearing; the three interlayer cavities are respectively arranged in the shell, the front end cover and the rear end cover. The sealed high-efficiency three-phase asynchronous motor adopts a fully sealed structure, and performs epoxy resin pouring treatment on the motor winding, so that damage caused by oil stains flowing into the motor is avoided, the motor can be used in a vacuum state, and meanwhile, heat is dissipated through water circulation, so that the motor has the characteristics of good heat dissipation, small noise, small vibration and high efficiency.

Description

Sealed high-efficiency three-phase asynchronous motor

Technical Field

The utility model relates to the technical field of three-phase asynchronous motors, in particular to a sealed high-efficiency three-phase asynchronous motor.

Background

The three-phase asynchronous motor is one kind of induction motor, and its rotor and stator rotate in the same direction and different rotation speeds, and has slip ratio, and the rotation speed of the rotor is lower than that of the rotating magnetic field, and the rotor winding produces electromotive force and current due to the relative motion between the rotor winding and the magnetic field and interacts with the magnetic field to produce electromagnetic torque, so that energy conversion is realized, and the three-phase asynchronous motor is widely applied to vacuum equipment industry.

In the prior art, as disclosed in the publication No. CN215580668U, the locking bolt is rotated until the locking bolt is separated from the connecting block, so that the dust cover can be detached, the dust cover is cleaned, dust is removed, the heat dissipation effect of the three-phase asynchronous motor is ensured, the possibility that the three-phase asynchronous motor is easily damaged due to overheat is reduced, and the service life of the three-phase asynchronous motor is prolonged; the filter component filters the air in the entering dust cover, and inside entering organism behind having reduced dust and impurity through the dust cover, lead to the possibility of organism damage, the erection frame can be dismantled with the solid fixed ring through supporting tight piece and mounting panel and be connected, has realized the dismantlement of filter component and dust cover and has connected, when the dust that adheres to on the filter component increases, can pull down the filter component, washs the filter screen, has guaranteed the filter effect of filter component.

But it adopts traditional fan to carry out the heat dissipation to the casing inside in the use for noise is big, vibration is big in the motor use, and the setting of fan makes the motor casing can't seal the setting simultaneously, makes the oil stain outside the equipment can get into the casing inside and pollute the winding, has certain use defect.

Disclosure of Invention

The utility model aims to provide a sealed high-efficiency three-phase asynchronous motor, which aims to solve the problems that the three-phase asynchronous motor in the current market provided by the background technology adopts a traditional fan to perform heat dissipation treatment on the inside of a shell, so that the noise and vibration are large in the use process of the motor, and meanwhile, the motor shell cannot be sealed due to the arrangement of the fan, so that oil stains on the outer side of equipment can enter the inside of the shell to pollute a winding.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the sealed high-efficiency three-phase asynchronous motor comprises a shell, a front end cover and a rear end cover, wherein the front end and the rear end of the shell are respectively and fixedly provided with the front end cover and the rear end cover, the inner side of the shell is fixedly provided with a motor winding, the inner side of the motor winding is provided with a rotor, and the inner side of the rotor is fixedly connected with a main shaft;

further comprises: the junction box is connected to the outer side of the shell and is used for realizing wiring protection;

the two groups of bearings are respectively arranged at the central positions of the front end cover and the rear end cover, and an outer sealing plate and an inner sealing plate are respectively arranged at the left side and the right side of each bearing;

the three interlayer cavities are respectively arranged in the shell, the front end cover and the rear end cover and are used for realizing heat dissipation and cooling.

Preferably, the shell is fixedly connected with the front end cover and the rear end cover through bolts in a sealing way, O-shaped sealing rings are arranged between the two ends of the shell and the front end cover and between the two ends of the shell and the rear end cover, and meanwhile, the sealing rings are made of fluororubber.

Through adopting above-mentioned technical scheme for the sealing washer can effectively improve the connection leakproofness of casing and front end housing and rear end housing, thereby improves the whole sealed effect of casing.

Preferably, the outer side glue filling of the motor winding is coated with epoxy resin, the motor winding, the rotor and the main shaft are coaxially arranged, and the outer wall of the epoxy resin is attached to the inner wall of the shell.

Through adopting above-mentioned technical scheme for epoxy can wrap up in the outside of motor winding completely, thereby realize the sealed protection to motor winding, avoid motor winding and oil stain contact, improved subsequent outgoing line leakproofness simultaneously.

Preferably, the outer sealing plate, the inner sealing plate and the outer ring of the bearing form a clamping and positioning structure, the two groups of outer sealing plates and the inner sealing plate respectively form a sealing connection structure with the front end cover and the rear end cover, and the outer sealing plate, the inner sealing plate and the main shaft are coaxially arranged.

Through adopting above-mentioned technical scheme for outer closing plate, inner closing plate can stabilize spacingly to the bearing, and the sealed effect of front end housing, rear end cap center department simultaneously.

Preferably, the junction box is in sealing connection with the shell, a copper rod is fixedly arranged on the inner side of the junction box, and the lower end of the copper rod is connected with a motor winding circuit through a connecting wire.

Through adopting above-mentioned technical scheme, effectively improved the threading leakproofness between casing and the terminal box, avoided line hole department to take place to leak, further improved sealed effect.

Preferably, the interlayer cavity is in an annular structure, the outer sides of the shell, the front end cover and the rear end cover are fixedly connected with a water conveying pipe, and the interlayer cavity is communicated with the water conveying pipe.

Through adopting above-mentioned technical scheme, can carry the cooling water to the interlayer chamber in the circulation through the raceway to realize the circulation cooling to the motor casing, make the noise of motor little, vibrate for a short time, effectively improved work efficiency.

Compared with the prior art, the utility model has the beneficial effects that: this sealed high efficiency three-phase asynchronous motor adopts full seal structure setting to carry out epoxy watering to motor winding and handle, avoid causing the damage after the oil stain inflow motor, can use under the vacuum state, simultaneously through hydrologic cycle heat dissipation, have that the heat dissipation is good, the noise is little, the vibration is little, efficient characteristics, the concrete content is as follows:

1. the motor is provided with the shell, the front end cover, the rear end cover, the junction box and the epoxy resin, and the shell, the front end cover, the rear end cover and the junction box are in sealing connection, so that the overall sealing performance of the motor shell is effectively improved, the motor can be used in a vacuum state, secondary sealing is not required when power of vacuum equipment is input, the motor winding can be coated by the epoxy resin, and the motor is prevented from being damaged after lubricating oil stains enter the motor;

2. be provided with interlayer cavity and raceway, be connected raceway and external water delivery equipment for can be to the circulation transport cooling water in the interlayer cavity, thereby realized effectively cooling to casing, front end housing, rear end housing, improved the radiating effect, noise and vibration when having reduced the motor and used simultaneously have further improved availability factor.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a three-dimensional cross-sectional structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic view of a front end cover in a three-dimensional cross-sectional structure according to the present utility model;

FIG. 5 is a schematic view of a rear end cap in a three-dimensional cross-sectional configuration of the present utility model;

fig. 6 is a schematic perspective sectional view of the housing of the present utility model.

In the figure: 1. a housing; 2. a front end cover; 3. a rear end cover; 4. a motor winding; 5. a rotor; 6. a main shaft; 7. a junction box; 8. a bearing; 9. an outer sealing plate; 10. an inner sealing plate; 11. a seal ring; 12. an epoxy resin; 13. a copper bar; 14. a connecting wire; 15. a compartment cavity; 16. a water pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the sealed high-efficiency three-phase asynchronous motor comprises a shell 1, a front end cover 2 and a rear end cover 3, wherein the front end and the rear end of the shell 1 are respectively and fixedly provided with the front end cover 2 and the rear end cover 3, the inner side of the shell 1 is fixedly provided with a motor winding 4, the inner side of the motor winding 4 is provided with a rotor 5, and the inner side of the rotor 5 is fixedly connected with a main shaft 6;

further comprises: a junction box 7 connected to the outside of the housing 1 for realizing wiring protection;

two groups of bearings 8 are respectively arranged at the central positions of the front end cover 2 and the rear end cover 3, and an outer sealing plate 9 and an inner sealing plate 10 are respectively arranged at the left side and the right side of the bearings 8;

the shell 1 is fixedly connected with the front end cover 2 and the rear end cover 3 through bolts in a sealing way, O-shaped sealing rings 11 are arranged between the two ends of the shell 1 and the front end cover 2 and between the two ends of the shell 3 and the rear end cover 3, and meanwhile, the sealing rings 11 are made of fluororubber. The outer side of the motor winding 4 is coated with epoxy resin 12 in a glue filling way, the motor winding 4, the rotor 5 and the main shaft 6 are coaxially arranged, and the outer wall of the epoxy resin 12 is attached to the inner wall of the shell 1. The outer sealing plate 9, the inner sealing plate 10 and the outer ring of the bearing 8 form a clamping and positioning structure, the two groups of outer sealing plate 9 and the inner sealing plate 10 respectively form a sealing connection structure with the front end cover 2 and the rear end cover 3, and the outer sealing plate 9, the inner sealing plate 10 and the main shaft 6 are coaxially arranged. The junction box 7 is in sealing connection with the shell 1, a copper rod 13 is fixedly arranged on the inner side of the junction box 7, and the lower end of the copper rod 13 is in circuit connection with the motor winding 4 through a connecting wire 14.

As shown in fig. 1-3, the front end cover 2 and the rear end cover 3 are respectively sleeved and mounted with the bearing 8, then the outer sealing plate 9 and the inner sealing plate 10 are fixedly mounted on two sides of the front end cover 2 and the rear end cover 3 through bolt sealing, so that the bearing 8 is fixed, then the front end cover 2 and the rear end cover 3 are fixedly mounted with the shell 1 through bolts, the shell 1 is in sealing connection with the front end cover 2 and the rear end cover 3 through sealing rings 11, so that the overall tightness of a motor shell is effectively improved, glue is filled outside the motor winding 4, the motor winding 4 can be sealed and coated by epoxy resin 12, so that oil stains are prevented from entering and damaging a motor, and the junction box 7 is in sealing connection with the shell 1, so that threading sealing is realized.

And three interlayer cavities 15 are respectively arranged in the shell 1, the front end cover 2 and the rear end cover 3 and are used for realizing heat dissipation and temperature reduction. The interlayer cavity 15 is arranged in an annular structure, the outer sides of the shell 1, the front end cover 2 and the rear end cover 3 are fixedly connected with a water conveying pipe 16, and the interlayer cavity 15 is communicated with the water conveying pipe 16.

As shown in fig. 2 and fig. 4 to 6, when the motor is used, the water pipe 16 is connected with external water delivery equipment, so that cooling water can be circularly delivered into the interlayer cavity 15 through the water pipe 16, thereby realizing effective cooling of the shell 1, the front end cover 2 and the rear end cover 3, improving the heat dissipation effect of the motor, and reducing noise and vibration.

In summary, when the sealed high-efficiency three-phase asynchronous motor is used, firstly, according to the parts of the shell 1, the front end cover 2, the rear end cover 3, the junction box 7 and the like shown in fig. 1-6, the motor winding 4 is subjected to glue filling sealing treatment, so that the overall sealing effect of the motor is effectively improved, and during use, cooling water is circularly conveyed into the interlayer cavity 15 through the water conveying pipe 16, so that the circulating water cooling of the motor is realized, and the heat dissipation effect is effectively improved.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The sealed high-efficiency three-phase asynchronous motor comprises a shell (1), a front end cover (2) and a rear end cover (3), wherein the front end and the rear end of the shell (1) are respectively and fixedly provided with the front end cover (2) and the rear end cover (3), the inner side of the shell (1) is fixedly provided with a motor winding (4), the inner side of the motor winding (4) is provided with a rotor (5), and the inner side of the rotor (5) is fixedly connected with a main shaft (6);

characterized by further comprising:

the junction box (7) is connected to the outer side of the shell (1) and is used for realizing wiring protection;

two groups of bearings (8) are respectively arranged at the central positions of the front end cover (2) and the rear end cover (3), and an outer sealing plate (9) and an inner sealing plate (10) are respectively arranged at the left side and the right side of the bearings (8);

and the three interlayer cavities (15) are respectively arranged in the shell (1), the front end cover (2) and the rear end cover (3) and are used for realizing heat dissipation and temperature reduction.

2. The sealed high efficiency three phase asynchronous motor of claim 1 wherein: the shell (1) is fixedly connected with the front end cover (2) and the rear end cover (3) through bolts in a sealing way, O-shaped sealing rings (11) are arranged between the two ends of the shell (1) and the front end cover (2) and between the two ends of the shell and the rear end cover (3), and meanwhile, the sealing rings (11) are made of fluororubber.

3. The sealed high efficiency three phase asynchronous motor of claim 1 wherein: the outside encapsulating cladding of motor winding (4) has epoxy (12), and motor winding (4), rotor (5) and main shaft (6) coaxial setting to the outer wall laminating of epoxy (12) is in the inner wall of casing (1).

4. The sealed high efficiency three phase asynchronous motor of claim 1 wherein: the outer sealing plate (9), the inner sealing plate (10) and the outer ring of the bearing (8) form a clamping and positioning structure, the two groups of the outer sealing plate (9) and the inner sealing plate (10) respectively form a sealing connection structure with the front end cover (2) and the rear end cover (3), and the outer sealing plate (9), the inner sealing plate (10) and the main shaft (6) are coaxially arranged.

5. The sealed high efficiency three phase asynchronous motor of claim 1 wherein: the junction box (7) is connected with the shell (1) in a sealing mode, a copper bar (13) is fixedly arranged on the inner side of the junction box (7), and the lower end of the copper bar (13) is connected with a motor winding (4) through a connecting wire (14) in a circuit mode.

6. The sealed high efficiency three phase asynchronous motor of claim 1 wherein: the interlayer cavity (15) is arranged in an annular structure, the outer sides of the shell (1), the front end cover (2) and the rear end cover (3) are fixedly connected with the water conveying pipe (16), and the interlayer cavity (15) is communicated with the water conveying pipe (16).