CN214314938U

CN214314938U - Three-phase asynchronous motor with long service life

Info

Publication number: CN214314938U
Application number: CN202120301451.4U
Authority: CN
Inventors: 符曰新; 陈利军; 宋世敏
Original assignee: Qiaoli Electric Machinery Co ltd
Current assignee: Qiaoli Electric Machinery Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-28
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a long service life's three-phase asynchronous motor relates to the technical field of motor, and it is including shell, inner shell, end cover and the motor fan housing that is connected, shell and inner shell between form the cooling chamber, the inner shell on be equipped with the parting bead, the parting bead separate into upper plenum and lower cavity with the cooling chamber, the end cover on still be connected with the cooling tube, the cooling tube extend to motor fan housing department, cooling tube one end be linked together with the upper plenum, the other end is linked together with lower cavity, the shell on still be equipped with import and export, import and upper plenum be linked together, export and lower cavity be linked together. The utility model discloses make to have good radiating effect to the motor, consequently make the life of motor longer.

Description

Three-phase asynchronous motor with long service life

Technical Field

The utility model belongs to the technical field of the technique of motor and specifically relates to a long service life's three-phase asynchronous motor is related to.

Background

At present, the cooling mode of the motor mainly comprises the following steps: natural cooling, forced air cooling, self-ventilation and water cooling.

The utility model discloses a chinese utility model patent that publication number is CN203813632U discloses a high-power permanent magnet synchronous motor's water-cooling frame, which comprises a sea, the surface of pedestal is provided with water inlet and delivery port, be provided with a plurality of rib, a plurality of in the pedestal the rib is the circular array setting, a plurality of the fixed first seamless steel pipe, a plurality of that is provided with of inner ring of rib the fixed second seamless steel pipe that is provided with of outer loop of rib forms the flowing water passageway between two adjacent ribs, water inlet and delivery port all communicate with the flowing water passageway.

The above prior art solutions have the following drawbacks: it lets in cooling water through the water inlet, and the cooling water cools off and finally discharges from the delivery port through flowing water passageway to the pedestal, but the cooling water is at the flow in-process, and the temperature rises gradually, therefore leads to the position cooling effect that the cooling water back passed through to be relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-phase asynchronous motor with long service life, which has good cooling effect on the motor.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a long service life's three-phase asynchronous motor, is including shell, inner shell, end cover and the motor fan housing that is connected, shell and inner shell between form the cooling chamber, the inner shell on be equipped with the parting bead, the parting bead separate into upper plenum and lower cavity with the cooling chamber, the end cover on still be connected with the cooling tube, the cooling tube extend to motor fan housing department, cooling tube one end be linked together with the upper plenum, the other end is linked together with cavity down, the shell on still be equipped with import and export, import and upper plenum be linked together, export and lower cavity be linked together.

Through adopting above-mentioned technical scheme, consequently when using, let in the cooling water in the cavity from the import upwards, because upper plenum and lower cavity are linked together through the cooling tube, consequently, after water in the upper plenum is full of, can flow to in the cooling tube, because the cooling tube extends to motor fan housing department, consequently, the produced air current of motor flabellum can cool down the cooling tube, and then cool down the cooling water in the cooling tube, the cooling water in the cooling tube can enter into to cavity down afterwards, and finally discharge from the export, consequently in the use, because the cooling water can be through cooling after the reentrant cavity down, consequently, make the well cooling effect that also can play to the well lower part of casing, the life of extension motor.

The present invention may be further configured in a preferred embodiment as: the outer surface of the shell is also provided with a plurality of radiating fins.

Through adopting above-mentioned technical scheme, consequently radiating fin's existence makes can assist the cooling water in upper cavity and the lower cavity and dispels the heat, further strengthens holistic radiating effect.

The present invention may be further configured in a preferred embodiment as: the inner shell is also provided with a guide plate, and the guide plate divides the upper cavity and the lower cavity into S-shaped flow channels.

Through adopting above-mentioned technical scheme, consequently make the cooling water flow in last cavity or cavity down, more comprehensive to the inner shell refrigerated, the cooling effect is better.

The present invention may be further configured in a preferred embodiment as: the end cover on still be equipped with the nipple that is used for being connected with the cooling tube, the both ends of cooling tube all be equipped with the connector, the connector include linkage segment, cover establish the nut on the linkage segment and be located the first baffle of linkage segment one end, the nut on be equipped with the inconsistent second baffle of first baffle, nut and nipple threaded connection.

Through adopting above-mentioned technical scheme, consequently can be connected nipple and cooling tube through the nut, consequently when making the maintenance, more easily with the cooling tube dismantlement down for it is more convenient to overhaul.

The present invention may be further configured in a preferred embodiment as: the first baffle and the threaded connection pipe are provided with a sealing groove on the contact surface, a rubber ring is arranged in the sealing groove, and the surface of the rubber ring protrudes out of the sealing groove.

Through adopting above-mentioned technical scheme, consequently when using, the rubber circle receives the extrusion can take place deformation, consequently can play good sealed effect, avoids the problem of cooling water seepage to take place.

The present invention may be further configured in a preferred embodiment as: the cooling tube include carry the section and with carry the heat dissipation section that the section is connected, the heat dissipation section set up the one end at the motor fan housing and be the heliciform.

Through adopting above-mentioned technical scheme, because the heat dissipation section is the heliciform, consequently can effectual increase and the area of contact of air, the produced air current of motor flabellum flows to motor fan housing one end can cool down the cooling tube simultaneously, has consequently further strengthened the cooling effect to the cooling water.

The present invention may be further configured in a preferred embodiment as: the heat dissipation section is also provided with a plurality of auxiliary fins.

Through adopting above-mentioned technical scheme, consequently further strengthened the cooling effect to cooling water in the cooling tube.

The present invention may be further configured in a preferred embodiment as: the end cover is also provided with a positioning groove for fixing the radiating pipe, and the positioning groove is formed by oppositely arranged positioning plates.

Through adopting above-mentioned technical scheme, consequently can play good fixed effect to the cooling tube, avoid the cooling tube to lead to the problem of damage to take place owing to the vibrations that work produced.

To sum up, the utility model discloses a following at least one useful technological effect:

therefore, when the motor is used, cooling water enters the upper cavity from the inlet, then enters the radiating pipe for cooling, and enters the lower cavity, so that a good radiating effect can be achieved on the off-duty part of the motor, and the service life of the motor is prolonged;

the existence of radiating fins can assist the cooling water in the upper cavity and the lower cavity to dissipate heat, and further enhance the overall heat dissipation effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the inner shell of the present invention.

Fig. 3 is a schematic axial sectional structural view of the present invention.

Fig. 4 is a schematic view of a heat dissipation pipe structure.

Fig. 5 is a partially enlarged schematic view of a portion a in fig. 3.

Reference numerals: 1. a housing; 11. a heat dissipating fin; 2. an inner shell; 21. a dividing strip; 22. a baffle; 23. an upper cavity; 231. an inlet; 24. a lower cavity; 241. an outlet; 3. an end cap; 31. positioning a plate; 32. positioning a groove; 33. a threaded connection pipe; 4. a radiating pipe; 41. auxiliary fins; 42. a connector; 421. a connecting section; 422. a first baffle plate; 423. a nut; 424. a second baffle; 425. a rubber ring; 426. a sealing groove; 43. a conveying section; 44. a heat dissipation section; 5. motor fan housing.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses a long service life' S three-phase asynchronous motor, including the shell 1 that is connected, inner shell 2, end cover 3 and motor fan housing 5, shell 1 cover is established on inner shell 2, end cover 3 is located the one end of shell 1 and is connected with shell 1, motor fan housing 5 and end cover 3 are located same one side and are connected with shell 1, fixedly connected with a plurality of radiating fin 11 on the surface of shell 1, form the cooling chamber between shell 1 and the inner shell 2, fixedly connected with separates parting strip 21 and guide plate 22 along the axial setting on the inner shell 2, parting strip 21 separates into upper chamber 23 and lower cavity 24 with the cooling chamber, guide plate 22 separates into the runner that is the S-shaped with upper chamber 23 and lower cavity 24. The end cover 3 is further connected with a radiating pipe 4, the radiating pipe 4 is made of copper materials, the radiating pipe 4 extends to the fan cover 5 of the motor, one end of the radiating pipe 4 is communicated with the upper cavity 23, the other end of the radiating pipe is communicated with the lower cavity 24, the shell 1 is further provided with an inlet 231 and an outlet 241, the inlet 231 is communicated with the upper cavity 23, and the outlet 241 is communicated with the lower cavity 24. When the outer shell 1 is installed on the inner shell 2, the outer shell 1 is heated, so that the outer shell 1 is heated to expand, then the inner shell 2 is placed into the outer shell 1, and when the outer shell 1 is cooled, the separation strips 21 and the guide plates 22 can be firmly sleeved, so that a good sealing effect is achieved. Therefore, when in use, the cooling water enters the upper cavity 23 from the inlet 231 and flows into the heat dissipation pipe 4 from the upper cavity 23, and since the heat dissipation pipe 4 extends to the motor fan cover 5, the airflow generated by the motor fan blade can cool the cooling water in the heat dissipation pipe 4, and then the cooled cooling water flows into the lower cavity 24, so that a good cooling effect can be achieved for the lower cavity 24. The cooling water flows along the S-shaped flow channels in the upper cavity 23 and the lower cavity 24, so that the motor is cooled more comprehensively, and meanwhile, the cooling water in the upper cavity 23 and the cooling water in the lower cavity 24 can be cooled in an auxiliary manner by the heat radiating fins 11, so that the cooling effect is further enhanced, and the service life of the motor can be effectively prolonged.

Referring to fig. 3 and 4, the heat dissipation pipe 4 includes a feeding section 43 and a heat dissipation section 44 connected to the feeding section 43, and the heat dissipation section 44 is disposed at one end of the motor fan housing 5 and has a spiral shape. The heat dissipation section 44 is further provided with a plurality of auxiliary fins 41. The end cover 3 is further fixedly connected with two screwed connection pipes 33 used for being connected with the radiating pipe 4, one of the screwed connection pipes 33 is communicated with the upper cavity 23, the other is communicated with the lower cavity 24, two ends of the radiating pipe 4 are respectively provided with a connector 42, referring to fig. 5, each connector 42 comprises a connecting section 421 connected and communicated with the conveying section 43, a nut 423 sleeved on the connecting section 421 and a first baffle 422 located at one end of the connecting section 421 close to the screwed connection pipe 33, one end of the nut 423 far away from the screwed connection pipe 33 is fixedly connected with a second baffle 424 which is abutted to the first baffle 422, and the nut 423 is in threaded connection with the screwed connection pipe 33. Therefore when using, the nut 423 is rotated and the second baffle 424 and the first baffle 422 are contacted, until the one end of the nipple 33 is inconsistent with the first baffle 422, this makes the second baffle 424 and the first baffle 422 inconsistent, therefore the connecting section 421 is better with the connecting effect of the nipple 33, simultaneously because the heat dissipation section 44 is spiral and is provided with a plurality of auxiliary fins 41, consequently, the contact area with the air is larger, consequently, the heat dissipation effect of the cooling water is better, and then the cooling effect of the cooling water entering the lower cavity 24 to the motor is better.

Referring to fig. 3 and 5, in order to avoid the leakage of cooling water from the connection between the connection section 421 and the nipple 33, a sealing groove 426 is provided on the surface of the first baffle 422 contacting the nipple 33, a rubber ring 425 is provided in the sealing groove 426, and the surface of the rubber ring 425 protrudes from the sealing groove 426. Therefore, when one end of the nipple 33 is abutted against the first baffle 422, the rubber ring 425 deforms, and therefore the problem that cooling water leaks from the joint of the connecting section 421 and the nipple 33 can be effectively avoided. The presence of the sealing groove 426 also makes the rubber ring 425 less prone to misalignment during installation.

Referring to fig. 3, in order to avoid the problem that the radiating pipe 4 is damaged due to vibration when the motor operates, the end cover 3 is further provided with a positioning groove 32 for fixing the radiating pipe 4, the positioning groove 32 is formed by oppositely arranged positioning plates 31, the positioning plates 31 are fixedly connected with the end cover 3, and the surfaces of the positioning plates 31, which are in contact with the radiating pipe 4, are covered with rubber plates. Therefore, when the heat pipe 4 is connected to the threaded pipe 33, the portion of the heat pipe 4 is located in the positioning groove 32 and is held by the positioning plate 31, so that the heat pipe 4 can be well fixed, and the problem that the heat pipe 4 is damaged due to vibration is avoided.

The implementation principle of the embodiment is as follows: when the motor is working, the cooling water enters the upper cavity 23 from the inlet 231 and enters the radiating pipe 4 from the upper cavity 23, and because the radiating pipe 4 is located in the cavity formed by the motor fan cover 5 and the end cover 3, the air flow generated by the motor fan can cool the cooling water in the radiating pipe 4, so that the temperature of the cooling water entering the lower cavity 24 from the radiating pipe 4 is lower, and the good radiating effect is achieved on the lower part of the motor. Thus resulting in a longer service life of the motor.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a long service life's three-phase asynchronous motor, includes shell (1), inner shell (2), end cover (3) and motor fan housing (5) that are connected, its characterized in that: outer shell (1) and inner shell (2) between form the cooling chamber, inner shell (2) on be equipped with parting bead (21), parting bead (21) separate into upper chamber (23) and lower cavity (24) with the cooling chamber, end cover (3) on still be connected with cooling tube (4), cooling tube (4) extend to motor fan housing (5) department, cooling tube (4) one end be linked together with upper chamber (23), the other end is linked together with lower cavity (24), outer shell (1) on still be equipped with import (231) and export (241), import (231) and upper chamber (23) be linked together, export (241) and lower cavity (24) be linked together.

2. A three-phase asynchronous motor with a long service life, according to claim 1, characterized in that: the outer surface of the shell (1) is also provided with a plurality of radiating fins (11).

3. A three-phase asynchronous motor with a long service life, according to claim 1, characterized in that: the inner shell (2) is also provided with a guide plate (22), and the guide plate (22) divides the upper cavity (23) and the lower cavity (24) into S-shaped flow channels.

4. A three-phase asynchronous motor with a long service life, according to claim 1, characterized in that: end cover (3) on still be equipped with and be used for nipple (33) that are connected with cooling tube (4), the both ends of cooling tube (4) all be equipped with connector (42), connector (42) establish nut (423) on connecting section (421) and first baffle (422) that are located connecting section (421) one end including connecting section (421), cover, nut (423) on be equipped with first baffle (422) inconsistent second baffle (424), nut (423) and nipple (33) threaded connection.

5. A long-life, three-phase asynchronous motor, according to claim 4, characterized in that: a sealing groove (426) is formed in the surface, in contact with the threaded connecting pipe (33), of the first baffle plate (422), a rubber ring (425) is arranged in the sealing groove (426), and the surface of the rubber ring (425) protrudes out of the sealing groove (426).

6. A three-phase asynchronous motor with a long service life according to claim 3, characterized in that: the cooling tube (4) include transport section (43) and with carry heat dissipation section (44) that section (43) are connected, heat dissipation section (44) set up the one end at motor fan housing (5) and be the heliciform.

7. A long-life, three-phase asynchronous motor according to claim 6, characterized in that: the heat dissipation section (44) is also provided with a plurality of auxiliary fins (41).

8. A long-life, three-phase asynchronous motor, according to claim 5, characterized in that: the end cover (3) is also provided with a positioning groove (32) for fixing the radiating pipe (4), and the positioning groove (32) is formed by oppositely arranged positioning plates (31).