CN218940837U

CN218940837U - High temperature prevention device for motor winding

Info

Publication number: CN218940837U
Application number: CN202223222656.7U
Authority: CN
Inventors: 牛浩宇; 张小刚
Original assignee: Sanyuan Motor Dalian Co ltd
Current assignee: Sanyuan Motor Dalian Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-28
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a high-temperature prevention device for a motor winding, which comprises a shell and a plurality of radiating fins fixed on the outer side of the shell, wherein an outer sleeve is sleeved on the outer side of the shell, and the inner surface of the outer sleeve is fixedly connected with the radiating fins; the two ends of the outer sleeve are respectively provided with a first water collecting chamber, the first water collecting chamber is communicated with a cavity between the shell and the outer sleeve, the bottoms of the first water collecting chambers are respectively communicated with a second water collecting chamber through connecting pipes, and a plurality of flat tubes are communicated between the second water collecting chambers; one of the connecting pipes is provided with a miniature water pump, and the top of the second water collecting chamber is fixedly provided with the same gas collecting hood. According to the utility model, the cooling liquid is filled into the cavity between the shell and the outer sleeve, the first water collecting chamber, the connecting pipe, the second water collecting chamber and the flat tube, and the traditional air cooling heat dissipation mode is replaced by a water cooling mode, so that the heat dissipation effect on the motor winding can be remarkably enhanced, and the actual heat dissipation requirement is met.

Description

High temperature prevention device for motor winding

Technical Field

The utility model relates to the technical field of motor winding heat dissipation, in particular to a motor winding high-temperature prevention device.

Background

The motor winding components are stator windings and rotor windings, the stator windings refer to windings mounted on the stator, namely copper wires wound on the stator. Windings are a generic term for a phase or whole electromagnetic circuit formed by a plurality of coils or groups of coils. The motors are classified into two types, namely, centralized type and distributed type, according to the winding shape of the coils and the different embedded wiring modes.

At present, a stator winding generally adopts a split cooling mode to dissipate heat, namely, a shell is sleeved outside the stator winding, and cooling fins are arranged on the shell.

Disclosure of Invention

The utility model aims to provide a high temperature prevention device for a motor winding, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the motor winding high temperature prevention device comprises a shell and a plurality of radiating fins fixed on the outer side of the shell, wherein an outer sleeve is sleeved on the outer side of the shell, and the inner surface of the outer sleeve is fixedly connected with the radiating fins; the two ends of the outer sleeve are respectively provided with a first water collecting chamber, the first water collecting chamber is communicated with a cavity between the shell and the outer sleeve, the bottoms of the first water collecting chambers are respectively communicated with a second water collecting chamber through connecting pipes, and a plurality of flat tubes are communicated between the second water collecting chambers; one of the connecting pipes is provided with a miniature water pump, the top of the second water collecting chamber is fixedly provided with the same gas collecting hood, the gas collecting hood is communicated with the space between the two adjacent flat pipes, the top end of the gas collecting hood is communicated with an air guiding pipe, and the inside of the air guiding pipe is provided with a heat dissipation fan.

Preferably, the top of one of the first water collecting chambers is communicated with a water inlet pipe, the water inlet pipe is connected with a first sealing cover in a threaded manner, one of the second water collecting chambers is communicated with a water outlet pipe, and the water outlet pipe is connected with a second sealing cover in a threaded manner.

Preferably, the mounting blocks are mounted at two ends of the second water collecting chamber, and mounting holes are formed in the mounting blocks.

Preferably, the outer surface of the outer sleeve is provided with two end plates, the two end plates are fixedly provided with the same U-shaped plate, an induced draft channel with an open top is formed between the outer sleeve and the U-shaped plate, and the bottom end of the U-shaped plate is communicated with the top of the induced draft pipe.

Preferably, a protective net is installed at the top of the U-shaped plate, and the protective net is located at the opening position of the top of the induced air channel.

Preferably, the screw hole has been seted up at the interior top of sealed lid one, and the inside of screw hole is fixed with the holding ring one, the inside threaded connection of screw hole has the holding ring two, compress tightly between holding ring one and the holding ring two and be provided with the spill sheet rubber, the gas pocket has been seted up at the interior top of screw hole.

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

1. this high temperature device is prevented to motor winding through filling coolant liquid to the cavity between shell and the outer sleeve and the inside of header chamber one, connecting pipe, header chamber two and flat tube to the mode of water-cooling replaces traditional forced air cooling heat dissipation mode, can show the reinforcing to motor winding's radiating effect, has satisfied actual heat dissipation demand.

2. The motor winding high temperature prevention device can prevent foreign matters in the external environment from entering the U-shaped plate, so that long-term stable operation of the heat dissipation fan can be ensured, and the safety is high.

3. This motor winding prevents high temperature device, induced air passageway's setting for gaseous in the external environment can flow through the surface of outer sleeve before getting into the induced air pipe, thereby can take away a part of heat on the outer sleeve, the radiating effect is good, and the U-shaped board has also carried out effectual protection to outer sleeve simultaneously, and the practicality is strong.

4. According to the high-temperature-resistant device for the motor winding, the concave rubber sheet is arranged, when the temperature of cooling liquid rises, the concave rubber sheet can gradually expand towards the direction of the air hole, and therefore damage to the circulation channel of the cooling liquid due to expansion of the cooling liquid can be avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a side cross-sectional view of the housing of the present utility model;

fig. 3 is a cross-sectional view of a first seal cap of the present utility model.

In the figure: 1. a housing; 2. a heat sink; 3. an outer sleeve; 4. a first water collecting chamber; 5. a connecting pipe; 6. a second water collecting chamber; 7. a flat tube; 8. a micro water pump; 9. a water inlet pipe; 10. a first sealing cover; 11. a water outlet pipe; 12. a second sealing cover; 13. a mounting block; 14. a mounting hole; 15. a U-shaped plate; 16. an end plate; 17. an air guiding pipe; 18. a gas collecting hood; 19. a heat dissipation fan; 20. a threaded hole; 21. a first positioning ring; 22. a positioning ring II; 23. a concave rubber sheet; 24. air holes; 25. and a protective net.

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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 2, the high temperature resistant device for a motor winding of the present embodiment includes a housing 1 and a plurality of cooling fins 2 fixed on the outer side of the housing 1, wherein the housing 1 is used for sleeving the outer side of the motor winding, so that heat generated by the motor winding can be transferred to the housing 1, an outer sleeve 3 is sleeved on the outer side of the housing 1, and the inner surface of the outer sleeve 3 is fixedly connected with the cooling fins 2; the two ends of the outer sleeve 3 are provided with a first water collecting chamber 4, the first water collecting chamber 4 is communicated with a cavity between the shell 1 and the outer sleeve 3, the bottoms of the first water collecting chambers 4 are respectively communicated with a second water collecting chamber 6 through a connecting pipe 5, and a plurality of flat pipes 7 are communicated between the second water collecting chambers 6; the miniature water pump 8 is installed on one connecting pipe 5, the same gas-collecting hood 18 is fixed at the top of two water-collecting chambers II 6, the gas-collecting hood 18 is communicated with the space between two adjacent flat pipes 7, the top end of the gas-collecting hood 18 is communicated with the air-inducing pipe 17, and the heat-dissipating fan 19 is installed in the air-inducing pipe 17.

The top of one of the first water collection chambers 4 is communicated with a water inlet pipe 9, the water inlet pipe 9 is connected with a first sealing cover 10 in a threaded manner, one of the second water collection chambers 6 is communicated with a water outlet pipe 11, the water outlet pipe 11 is connected with a second sealing cover 12 in a threaded manner, and the water inlet pipe 9 and the water outlet pipe 11 are arranged to facilitate the addition and replacement of cooling liquid.

The mounting block 13 is installed at the both ends of the second water collection chamber 6, and the mounting hole 14 is formed in the mounting block 13.

The surface mounting of outer sleeve 3 has two end plates 16, be fixed with same U-shaped board 15 on two end plates 16, be formed with open-top's induced air passageway between outer sleeve 3 and the U-shaped board 15, induced air passageway's setting for the gas in the external environment can flow through the surface of outer sleeve 3 before getting into induced air pipe 17, thereby can take away a part of heat on the outer sleeve 3, the radiating effect is good, and U-shaped board 15 has also carried out effectual protection to outer sleeve 3 simultaneously, and the practicality is strong, and the bottom of U-shaped board 15 is linked together with the top of induced air pipe 17.

The top of the U-shaped plate 15 is provided with a protective net 25, and the protective net 25 is positioned at the opening position of the top of the induced draft channel; the protection net 25 can prevent foreign matter in the external environment from entering the inside of the U-shaped plate 15, so that the long-term stable operation of the heat radiation fan 19 can be ensured, and the safety is high.

Through the technical scheme:

when the cooling device is used, the first sealing cover 10 and the second sealing cover 12 are opened, cooling liquid is filled into the cavity between the shell 1 and the outer sleeve 3 and the interiors of the first water collecting chamber 4, the connecting pipe 5, the second water collecting chamber 6 and the flat tube 7 by utilizing the matching of the water inlet pipe 9 and the water outlet pipe 11, and then the first sealing cover 10 and the second sealing cover 12 are screwed up, so that the cooling liquid is prevented from leaking from the water inlet pipe 9 and the water outlet pipe 11; then, the miniature water pump 8 is started, so that the cavity between the shell 1 and the outer sleeve 3 and the cooling liquid in the first water collecting chamber 4, the connecting pipe 5, the second water collecting chamber 6 and the flat tubes 7 start to circulate, meanwhile, the cooling fan 19 is started, the cooling liquid can absorb heat on motor windings absorbed on the shell 1 and the cooling fins 2, the cooling fan 19 can introduce low-temperature gas in the external environment into a space between two adjacent flat tubes 7 through the induced air channel, the gas flowing speed in the space is accelerated, and therefore, the heat in the cooling liquid can be rapidly dissipated into the air;

through filling the cooling liquid into the cavity between the shell 1 and the outer sleeve 3 and the inside of the first water collecting chamber 4, the connecting pipe 5, the second water collecting chamber 6 and the flat tube 7, the traditional air cooling heat dissipation mode is replaced by a water cooling mode, the heat dissipation effect on the motor winding can be remarkably enhanced, and the actual heat dissipation requirement is met.

As shown in fig. 1 and 3, a threaded hole 20 is formed in the inner top of the first sealing cover 10, a first positioning ring 21 is fixed in the threaded hole 20, a second positioning ring 22 is connected with the threaded hole 20 in a threaded manner, the concave rubber sheet 23 is convenient to disassemble, assemble and replace, a concave rubber sheet 23 is tightly pressed between the first positioning ring 21 and the second positioning ring 22, and an air hole 24 is formed in the inner top of the threaded hole 20.

Through the technical scheme:

when the cooling device is used, along with gradual rising of the cooling liquid, the cooling liquid can expand to a certain extent according to the principle of thermal expansion and cold contraction, and the concave rubber sheet 23 can gradually expand towards the direction of the air hole 24, so that damage to the circulation channel of the cooling liquid due to expansion of the cooling liquid can be avoided.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a high temperature device is prevented to motor winding, includes shell (1) and fixes a plurality of fin (2) in the shell (1) outside, its characterized in that: an outer sleeve (3) is sleeved on the outer side of the shell (1), and the inner surface of the outer sleeve (3) is fixedly connected with the radiating fins (2); the two ends of the outer sleeve (3) are provided with first water collecting chambers (4), the first water collecting chambers (4) are communicated with a cavity between the shell (1) and the outer sleeve (3), the bottoms of the first water collecting chambers (4) are respectively communicated with second water collecting chambers (6) through connecting pipes (5), and a plurality of flat tubes (7) are communicated between the second water collecting chambers (6); one of the connecting pipes (5) is provided with a miniature water pump (8), the tops of the two water collecting chambers (6) are fixedly provided with the same gas collecting hood (18), the gas collecting hood (18) is communicated with the space between the two adjacent flat pipes (7), the top end of the gas collecting hood (18) is communicated with an air guiding pipe (17), and the inside of the air guiding pipe (17) is provided with a heat dissipation fan (19).

2. The motor winding heat protection device of claim 1, wherein: one of the water collecting chambers I (4) is provided with a water inlet pipe (9) in a communicating manner at the top, the water inlet pipe (9) is provided with a sealing cover I (10) in a threaded connection manner, one of the water collecting chambers II (6) is provided with a water outlet pipe (11) in a communicating manner, and the water outlet pipe (11) is provided with a sealing cover II (12) in a threaded connection manner.

3. The motor winding heat protection device of claim 1, wherein: the two ends of the water collecting chamber II (6) are provided with mounting blocks (13), and mounting holes (14) are formed in the mounting blocks (13).

4. The motor winding heat protection device of claim 1, wherein: the outer surface of the outer sleeve (3) is provided with two end plates (16), the two end plates (16) are fixedly provided with the same U-shaped plate (15), an air inducing channel with an open top is formed between the outer sleeve (3) and the U-shaped plate (15), and the bottom end of the U-shaped plate (15) is communicated with the top of an air inducing pipe (17).

5. The motor winding heat protection device of claim 4, wherein: the top of U-shaped board (15) is installed protection network (25), protection network (25) are located the open position department at induced air passageway top.

6. The motor winding heat protection device of claim 2, wherein: screw holes (20) are formed in the inner top of the first sealing cover (10), positioning rings (21) are fixed in the screw holes (20), positioning rings (22) are connected with the screw holes (20) in a threaded mode, concave rubber sheets (23) are tightly pressed between the positioning rings (21) and (22), and air holes (24) are formed in the inner top of the screw holes (20).