CN212785069U

CN212785069U - Temperature protection device for single-phase motor

Info

Publication number: CN212785069U
Application number: CN202021956129.7U
Authority: CN
Inventors: 李江澎; 吴林友
Original assignee: Changzhou Honest Electric Co ltd
Current assignee: Changzhou Honest Electric Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-03-23
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a single-phase motor temperature protection device, including the shell, the internally mounted of shell has motor main body, and motor main body's side is provided with the pivot, and motor main body's bottom mounting has the support column, and motor main body's surface is provided with the radiator-grid, and the surface of radiator-grid is provided with the cooling ring, and the inside of cooling ring is opened there is the cooling oil pocket. The cooling ring covers the surface of the motor main body through the heat dissipation net, and the motor main body is fundamentally and fully cooled through cooling oil in the cooling oil cavity, so that the motor main body is rapidly cooled, the motor main body is kept in a safe temperature range, and the service life of the motor main body is prolonged. The cooling oil in the cooling oil cavity can be replaced quickly, so that the quick cooling of the motor main body is realized. The temperature inside the shell is reduced, and the temperature protection of the motor is facilitated.

Description

Temperature protection device for single-phase motor

Technical Field

The utility model belongs to the technical field of single phase motor, specifically be a single phase motor temperature protection device.

Background

The single-phase motor generally refers to a low-power single-phase asynchronous motor powered by a single-phase alternating current power supply, and the motor generally has two-phase windings on a stator, and different starting characteristics and running characteristics can be generated due to the fact that the two-phase windings are distributed on the stator and the power supply conditions are different; the motor body generates heat during operation, and therefore temperature protection of the motor is required.

Chinese patent of the invention with an issued publication number CN211296467U in 8/18/2020 discloses a single-phase motor temperature protection device, which comprises: the motor comprises a motor body, a controller and a metal box body for accommodating the controller; the motor body comprises a metal motor shell; the metal box body is fixed to the metal motor shell; the controller is arranged in the metal box body; the controller is provided with a radiating fin; the radiating fin is attached to the inner wall surface of the metal box body; the single-phase motor temperature protection device still includes: the air collecting cover and the centrifugal fan are used for cooling the motor body; the air collecting cover is fixed to one end, far away from a motor shaft of the motor body, of the metal motor shell; the centrifugal fan is arranged in the air collecting cover; the outer wall surface of the metal motor shell is provided with a plurality of heat dissipation rib groups; each heat dissipation rib group comprises a plurality of heat dissipation ribs which are formed by protruding outwards from the outer wall surface of the metal motor shell; and a ventilation gap is formed between every two adjacent heat dissipation ribs. Can effectively cool the controller and the motor body.

The existing single-phase motor temperature protection device can not give consideration to the surface of the motor main body during temperature reduction, only absorbs heat generated by the motor main body in the shell, addresses both the symptoms and causes but not the root causes, and the temperature of the heat on the surface of the motor main body is reduced slowly, so that the temperature protection of the motor main body can not be carried out; moreover, no heat dissipation holes are formed in the surface of the shell, and heat dissipation is insufficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single phase motor temperature protection device to the heat temperature who solves the motor main part surface reduces slower, can't carry out the problem of temperature protection to the motor main part.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a single phase motor temperature protection device, includes the shell, the internally mounted of shell has the motor main part, the side of motor main part is provided with the pivot, the bottom mounting of motor main part has the support column, the surface of motor main part is provided with the radiator-grid, the surface of radiator-grid is provided with the cooling ring, the inside division of cooling ring has the cooling oil pocket.

Preferably, the bottom of cooling oil pocket is provided with into oil pipe and goes out oil pipe, the bottom mounting of shell has the landing leg, the bottom of shell is provided with flourishing oil tank, the inside of flourishing oil tank is provided with into oil pocket and goes out the oil pocket, the both ends of flourishing oil tank are provided with oil inlet and oil-out.

Preferably, the surface of the shell is provided with heat dissipation holes, the top end of the shell is provided with an exhaust fan, and the bottom end of the exhaust fan is provided with an exhaust pipe.

Preferably, the motor main body is installed in the shell through a support column, and the heat dissipation net is located between the motor main body and the cooling ring.

Preferably, the cooling oil cavity is of a circular structure, and the oil inlet pipe, the oil inlet cavity and the oil inlet are communicated.

Preferably, the oil outlet pipe, the oil outlet cavity and the oil outlet are communicated, and the oil inlet pipe and the oil outlet pipe penetrate through the bottom end of the shell.

Preferably, the exhaust pipe is inserted into the housing.

Compared with the prior art, the utility model discloses a press dustcoat is used in elbow production:

1. be provided with cooling ring and cooling oil pocket, during the use, the cooling ring passes through the radiator-grid and covers on the surface of motor main part, through the inside coolant oil of cooling oil pocket, carries out fundamental abundant cooling to the motor main part to realized motor main part rapid cooling, kept the motor main part at safe temperature within range, the life of extension motor main part.

2. Be provided with flourishing oil tank, during the use, can the inside coolant oil of quick replacement cooling oil pocket to the rapid cooling of motor main part has been realized.

3. The exhaust fan is arranged, hot air is extracted from the inside of the shell through the exhaust pipe during use, and the hot air is exchanged with outside air through the heat dissipation holes, so that the temperature inside the shell is reduced, and the temperature protection of the motor is facilitated.

Drawings

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

fig. 2 is a schematic structural diagram of the cooling ring part of fig. 1 of the present invention.

In the figure: 1. a housing; 2. an exhaust pipe; 3. an exhaust fan; 4. heat dissipation holes; 5. a cooling ring; 6. a heat-dissipating web; 7. a motor main body; 8. a rotating shaft; 9. a support pillar; 10. an oil inlet pipe; 11. a support leg; 12. an oil containing tank; 13. an oil outlet; 14. an oil outlet pipe; 15. an oil inlet; 16. an oil outlet cavity; 17. an oil inlet cavity; 18. and the cooling oil cavity.

Detailed Description

Referring to fig. 1 and 2, a single-phase motor temperature protection device includes a housing 1, a motor main body 7 is installed inside the housing 1, a rotating shaft 8 is disposed on a side surface of the motor main body 7, the rotating shaft 8 penetrates through the housing 1, a supporting column 9 is fixed at a bottom end of the motor main body 7, and the motor main body 7 is installed inside the housing 1 through the supporting column 9.

Referring to fig. 1 and 2, a heat dissipation mesh 6 is disposed on a surface of the motor body 7, a cooling ring 5 is disposed on a surface of the heat dissipation mesh 6, and the heat dissipation mesh 6 is located between the motor body 7 and the cooling ring 5.

Referring to fig. 1 and 2, the width of the cooling ring 5 is not greater than the length of the motor main body 7, a cooling oil cavity 18 is formed inside the cooling ring 5, and the cooling oil cavity 18 is of a circular structure.

Referring to fig. 1 and 2, an oil inlet pipe 10 and an oil outlet pipe 14 are arranged at the bottom end of the cooling oil chamber 18, and the oil inlet pipe 10 and the oil outlet pipe 14 penetrate through the bottom end of the housing 1 and are communicated with the oil containing tank 12; the bottom end of the shell 1 is fixed with a supporting leg 11, and the bottom end of the shell 1 is provided with an oil containing tank 12.

Referring to fig. 1 and 2, an oil inlet cavity 17 and an oil outlet cavity 16 are arranged inside the oil containing tank 12, and the oil inlet cavity 17 is not communicated with the oil outlet cavity 16; an oil inlet 15 and an oil outlet 13 are arranged at two ends of the oil containing tank 12, the oil inlet pipe 10, the oil inlet cavity 17 and the oil inlet 15 are communicated, and the oil outlet pipe 14, the oil outlet cavity 16 and the oil outlet 13 are communicated.

Referring to fig. 1, heat dissipation holes 4 are formed in the surface of a housing 1, an exhaust fan 3 is installed at the top end of the housing 1, an exhaust pipe 2 is installed at the bottom end of the exhaust fan 3, the exhaust pipe 2 is inserted into the housing 1, and the exhaust pipe 2 is located at the top end of a motor main body 7, so that hot air inside the housing 1 can be extracted, and cooling of the motor main body 7 is accelerated.

The working principle of the scheme is as follows: the exhaust fan 3 is arranged at the top end of the shell 1 and is communicated with the interior of the shell 1 through the exhaust pipe 2; the motor main body 7 is arranged in the shell 1 and covers the heat dissipation net 6, and the cooling ring 5 is sleeved on the surface of the heat dissipation net 6 and is communicated with the oil containing tank 12 through the oil inlet pipe 10 and the oil outlet pipe 14.

When the motor body 7 operates, the exhaust fan 3 extracts hot air in the shell 1 through the exhaust pipe 2, and cooling of the motor body 7 is accelerated.

Meanwhile, the cooling ring 5 filled with cooling oil covers the surface of the motor main body 7, and absorbs heat generated by the motor main body 7 through the cooling oil to reduce the temperature of the motor main body 7; the cooling oil is changed rapidly through the oil containing tank 12, so that the cooling depth of the motor main body 7 is accelerated.

Claims

1. A single-phase motor temperature protection device, includes shell (1), its characterized in that: the internally mounted of shell (1) has motor main part (7), the side of motor main part (7) is provided with pivot (8), the bottom mounting of motor main part (7) has support column (9), the surface of motor main part (7) is provided with radiator-grid (6), the surface of radiator-grid (6) is provided with cooling ring (5), open the inside of cooling ring (5) has cooling oil pocket (18).

2. The single-phase motor temperature protection device of claim 1, wherein: the bottom of cooling oil pocket (18) is provided with into oil pipe (10) and goes out oil pipe (14), the bottom mounting of shell (1) has landing leg (11), the bottom of shell (1) is provided with flourishing oil tank (12), the inside of flourishing oil tank (12) is provided with oil feed chamber (17) and goes out oil chamber (16), the both ends of flourishing oil tank (12) are provided with oil inlet (15) and oil-out (13).

3. The single-phase motor temperature protection device of claim 1, wherein: the surface of shell (1) is opened there are louvre (4), air exhauster (3) are installed on the top of shell (1), the bottom of air exhauster (3) is provided with exhaust column (2).

4. The single-phase motor temperature protection device of claim 1, wherein: the motor body (7) is installed in the shell (1) through a support column (9), and the heat dissipation net (6) is located between the motor body (7) and the cooling ring (5).

5. The single-phase motor temperature protection device of claim 2, wherein: the cooling oil cavity (18) is of a circular structure, and the oil inlet pipe (10), the oil inlet cavity (17) and the oil inlet (15) are communicated.

6. The single-phase motor temperature protection device of claim 2, wherein: the oil outlet pipe (14), the oil outlet cavity (16) and the oil outlet (13) are communicated, and the oil inlet pipe (10) and the oil outlet pipe (14) penetrate through the bottom end of the shell (1).

7. A single phase motor temperature protection device as claimed in claim 3, wherein: the exhaust pipe (2) is inserted into the shell (1).