CN213027721U

CN213027721U - External cooling type totally-enclosed direct current motor

Info

Publication number: CN213027721U
Application number: CN202021359978.4U
Authority: CN
Inventors: 刘岳荣
Original assignee: Haiyan Longbo Direct Current Motor Co ltd
Current assignee: Haiyan Longbo Direct Current Motor Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-20
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses a totally closed direct current motor of external cooling formula belongs to direct current motor technical field, including the device shell, the inside right side fixed surface of device shell installs the motor case, the inside fixed mounting of motor case has motor body, the little fan of motor body output fixedly connected with, motor case right side fixed surface installs the heating panel and embeds on device shell right side wall, motor body current input end fixedly connected with wire one end, install the second sealing washer between wire and the motor body, wire other end fixedly connected with power cord. The utility model discloses utilize liquid nitrogen refrigeration, the temperature that produces when the motor uses that can be quick gives and falls, improves cooling rate to in motor axis of rotation position a fan and ventilative board in addition, can be for the motor cooling down under the short time use, the effect is also more obvious, and can also save the resource.

Description

External cooling type totally-enclosed direct current motor

Technical Field

The utility model relates to a direct current motor technical field especially relates to a totally closed direct current motor of external cooling formula.

Background

The dc motor is a rotating electrical machine that can convert dc electrical energy into mechanical energy (dc motor) or convert mechanical energy into dc electrical energy (dc generator), and is a motor that can convert dc electrical energy and mechanical energy into each other. When the totally-enclosed direct current motor is used for a long time, the totally-enclosed direct current motor needs to be cooled, and the existing totally-enclosed direct current motor does not have an external cooling function, so that when the totally-enclosed direct current motor is used, due to long-term use, the inside of the totally-enclosed direct current motor is overheated, the totally-enclosed direct current motor is easily burnt out, the service life of the totally-enclosed direct current motor is shortened, and the practicability of the totally-enclosed direct current motor is reduced.

Patent number CN108808958A discloses a totally closed direct current motor of outer cooling type, the power distribution box comprises a box body, the right side fixedly connected with installation disc of box, the left center of installation disc department fixedly connected with direct current motor body, the surface of direct current motor body is located the inner chamber of box. According to the invention, through the mutual matching of the box body, the temperature sensor, the water changing hole, the water tank, the refrigerator, the water adding pipe, the threaded cover, the water outlet pipe, the water pump, the water pumping pipe, the protection box, the processor, the first sealing ring, the second sealing ring, the heat dissipation hole and the dust screen, the advantage of external cooling is achieved, the problem that the existing totally-enclosed direct current motor does not have an external cooling function is solved, the totally-enclosed direct current motor can be cooled externally when in use, the totally-enclosed direct current motor is ensured not to be easily burnt out, the service life of the totally-enclosed direct current motor is prolonged, and therefore the practicability of the totally-enclosed direct current motor is improved.

The external cooling type totally-enclosed direct current motor in the prior art has the following defects: 1. the water flow is used for cooling, and a refrigerating device is added, so that the cooling can be effectively carried out, but the cooling speed is slow; 2. when the service time of the motor is short, water cooling is wasted, and therefore an external cooling type totally-closed direct current motor is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a totally closed direct current motor of external cooling formula utilizes liquid nitrogen refrigeration, can be quick the temperature that produces when the motor uses for falling, improves cooling rate to at motor axis of rotation position a fan and ventilative board in addition, can be for the motor cooling down under the short time is used, the effect is also more obvious, and can also save the resource.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of totally closed direct current motor of external cooling formula, the device comprises a device shell, the inside right side fixed surface of device shell installs the motor case, the inside fixed mounting of motor case has motor body, motor body output fixedly connected with little fan, motor case right side fixed surface installs the heating panel and embeds on the device shell right side wall, motor body current input end fixedly connected with wire one end, install the second sealing washer between wire and the motor body, wire other end fixedly connected with power cord, fixed mounting has first sealing washer between power cord and the wire, the inside top fixedly connected with refrigerating plant of device shell.

Optionally, refrigerating plant comprises inlet port cover, magnetism bonder, compressor, intake pipe, second valve, first connecting pipe, third valve, ejector, second connecting pipe and outlet duct, intake pipe right side surface is provided with the third valve, intake pipe end fixedly connected with ejector, ejector right side fixedly connected with second connecting pipe one end, second connecting pipe other end fixedly connected with magnetism bonder, intake pipe surface upper end fixedly connected with first connecting pipe, first connecting pipe surface is provided with the second valve, the terminal fixedly connected with compressor of first connecting pipe.

Optionally, the upper end of the left side of the air inlet pipe is fixedly connected with an air inlet hole sleeve, and the right side of the magnetic bonder is fixedly connected with an air outlet pipe.

Optionally, the bottom of the device shell is fixedly connected with a supporting rod, the bottom of the supporting rod is fixedly connected with a base, and through holes are formed in two sides of the upper surface of the base.

Optionally, the bottom of the right side of the device shell is provided with an air outlet, and the surface of the air outlet is provided with a first valve.

The utility model has the advantages as follows:

the embodiment of the utility model provides a totally closed direct current motor of external cooling formula:

1. switch on external power earlier, insert the power cord on the socket, then opening motor body's switch, motor body will produce the rotation like this, to motor body, the little fan of its output fixedly connected with, and the direction of little fan air-out is facing to motor body, so motor body is when the pivoted, the cold wind that the little fan blew out can carry out certain cooling effect to motor body, the heating panel has still been installed to the position of motor body output, the heating panel also can give out the heat that produces when motor body rotates, it is more convenient simple, and motor body itself just need rotate, so itself during operation drives little fan again and rotates, certain energy-conserving effect has been played.

2. Sometimes, the motor body needs to rotate for a long time, the refrigerating effect generated by the small fan is very small, so a cooling system is added outside the motor body at this time, for the cooling system, the temperature generated by the motor needs to be quickly reduced, for the refrigerating system, a liquid nitrogen refrigerating device is adopted, an external liquid nitrogen filling tank is firstly used for flushing liquid nitrogen into the refrigerating system from an air inlet pipe, then a compressor arranged above the air pipe starts to work to compress air, then a second valve is opened to allow compressed gas and liquid nitrogen to enter the air inlet pipe, then a third valve is opened, at this time, the gas-nitrogen mixture enters an ejector, the ejector can mix the compressed gas and the liquid nitrogen gas, the gas can enlarge the surface area of the liquid nitrogen, and the refrigerating effect can be further improved, gas nitrogen mixture can mix gas and liquid nitrogen again in entering into magnetic binder, then enters into device shell inside from the outlet duct, can refrigerate the motor surface this time to the refrigeration effect of liquid nitrogen is better, can be quick make the temperature drop, when not using, flows out gas nitrogen mixture from the venthole again, is the environment of facilitating for filling liquid nitrogen again.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of an external cooling type totally-enclosed dc motor according to an embodiment of the present invention;

fig. 2 is an internal structural schematic diagram of a refrigerating apparatus of an external cooling type totally-enclosed dc motor according to an embodiment of the present invention.

In the figure: 1. a device housing; 2. a motor case; 3. a small fan; 4. a motor body; 5. an air outlet; 6. a first valve; 7. a through hole; 8. a support bar; 9. a base; 10. a power line; 11. a wire; 12. a first seal ring; 13. a second seal ring; 14. a refrigeration device; 15. an air inlet hole sleeve; 16. a magnetic bonder; 17. a compressor; 18. an air inlet pipe; 19. a second valve; 20. a first connecting pipe; 21. a third valve; 22. an ejector; 23. a second connecting pipe; 24. an air outlet pipe; 25. a heat sink.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 belong to the protection scope of the present invention.

An external cooling type totally enclosed dc motor according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1-2, an embodiment of the utility model provides a totally closed direct current motor of external cooling formula, including device shell 1, the inside right side fixed surface of device shell 1 installs motor case 2, the inside fixed mounting of motor case 2 has motor body 4, motor body 4 output end fixedly connected with small fan 3, motor case 2 right side fixed surface installs heating panel 25 and embeds on device shell 1 right side wall, motor body 4 current input end fixedly connected with wire 11 one end, install second sealing washer 13 between wire 11 and the motor body 4, wire 11 other end fixedly connected with power cord 10, fixed mounting has first sealing washer 12 between power cord 10 and the wire 11, the inside top fixedly connected with refrigerating plant 14 of device shell 1.

Illustratively, when an external power source is turned on, the motor body is rotated, and, for the motor body, the output end of the motor is fixedly connected with a small fan, the air outlet direction of the small fan is opposite to the motor body, therefore, when the motor body rotates, the cold air blown out by the small fan can perform a certain cooling effect on the motor body, the heat dissipation plate is also arranged at the output end of the motor body and can also dissipate the heat generated when the motor body rotates, the operation is convenient and simple, and the motor body needs to rotate, so the small fan is driven to rotate when the motor works to play a certain energy-saving role, but sometimes the motor body needs to rotate for a long time, at this time, the cooling effect produced by the small fan is already small, so a cooling system is added to the outside of the motor body at this time.

Referring to fig. 2, refrigerating plant 14 comprises inlet port cover 15, magnetic binder 16, compressor 17, intake pipe 18, second valve 19, first connecting pipe 20, third valve 21, ejector 22, second connecting pipe 23 and

outlet duct

24, 18 right side surfaces of intake pipe are provided with

third valve

21, 18 terminal fixedly connected with ejectors 22 of intake pipe, 22 right side fixedly connected with second connecting pipe 23 one end of ejectors, 23 other end fixedly connected with magnetic binder 16 of second connecting pipe, 18 first connecting pipes 20 of surface upper end fixedly connected with of intake pipe, 20 surfaces of first connecting pipe are provided with

second valve

19, 20 terminal fixedly connected with compressors 17 of first connecting pipe.

The gas-nitrogen mixture enters the ejector, the ejector can mix the compressed gas and the liquid nitrogen gas together, the surface area of the liquid nitrogen can be enlarged by the gas, the refrigerating effect can be further improved, and the gas-nitrogen mixture can mix the gas and the liquid nitrogen again when entering the magnetic binder.

Referring to fig. 1, an air inlet hole sleeve 15 is fixedly connected to the upper end of the left side of the air inlet pipe 18, and an air outlet pipe 24 is fixedly connected to the right side of the magnetic bonder 16.

Illustratively, the output end of the external liquid nitrogen filling tank is connected with an air inlet hole sleeve, so that the liquid nitrogen can be prevented from flowing out.

Referring to fig. 1, a support rod 8 is fixedly connected to the bottom of the device housing 1, a base 9 is fixedly connected to the bottom of the support rod 8, and through holes 7 are formed in two sides of the upper surface of the base 9.

For example, the base is provided with a through hole, and can be fixedly connected by using a bolt and a nut.

Referring to fig. 1, the bottom of the right side of the device housing 1 is provided with an air outlet 5, and the surface of the air outlet 5 is provided with a first valve 6.

In an example, the first valve is used for opening and closing, the closing can prevent the gas-nitrogen mixture from flowing out, and the opening can prevent the gas-nitrogen mixture from flowing out from the gas outlet hole, so that a convenient environment is provided for refilling liquid nitrogen.

When the motor is used, an external power supply is firstly switched on, the power wire 10 is inserted into a socket, then a switch of the motor body 4 is switched on, so that the motor body 4 can rotate, the output end of the motor body 4 is fixedly connected with the small fan 3, and the air outlet direction of the small fan 3 faces to the motor body 4, so that cold air blown out by the small fan 3 can perform a certain cooling effect on the motor body 4 when the motor body 4 rotates, the position of the output end of the motor body 4 is also provided with the heat dissipation plate 25, the heat dissipation plate 25 can also dissipate heat generated when the motor body 4 rotates, the motor body is convenient and simple, and the motor body needs to rotate, so the small fan 3 is driven to rotate when the motor body works, a certain energy-saving effect is achieved, but sometimes the motor body 4 needs to rotate for a long time, at this time, the small fan has little refrigeration effect, so a cooling system is added outside the motor body at this time, for the cooling system, the temperature generated by the motor needs to be quickly reduced, for the refrigeration system, a liquid nitrogen refrigeration device 14 is adopted, an external liquid nitrogen filling tank is firstly used for flushing liquid nitrogen into the liquid nitrogen from an air inlet pipe 18, then a compressor 17 arranged above the air pipe 18 starts to work to compress air, then a second valve 19 is opened to allow the compressed gas and the liquid nitrogen to enter the air inlet pipe 18, then a third valve 21 is opened, at this time, the gas-nitrogen mixture enters an ejector 22, the ejector 22 can mix the compressed gas and the liquid nitrogen gas, the gas can enlarge the surface area of the liquid nitrogen, the refrigeration effect can be further improved, the gas-nitrogen mixture enters a magnetic binder 16, can mix gas and liquid nitrogen once more, then enter into device shell 1 inside from outlet duct 24, can refrigerate the motor surface this time to the refrigeration effect of liquid nitrogen is better, can be quick make the temperature drop, when not using, flows out gas nitrogen mixture from the venthole again, is the environment of facilitating for filling liquid nitrogen again.

The utility model relates to an external cooling type totally-enclosed direct current motor, which comprises a device shell 1; 2. a motor case; 3. a small fan; 4. a motor body; 5. an air outlet; 6. a first valve; 7. a through hole; 8. a support bar; 9. a base; 10. a power line; 11. a wire; 12. a first seal ring; 13. a second seal ring; 14. a refrigeration device; 15. an air inlet hole sleeve; 16. a magnetic bonder; 17. a compressor; 18. an air inlet pipe; 19. a second valve; 20. a first connecting pipe; 21. a third valve; 22. an ejector; 23. a second connecting pipe; 24. an air outlet pipe; 25. the heat sink and the components are all standard parts or parts known to those skilled in the art, and the structure and principle of the heat sink and the components are known to those skilled in the art through technical manuals or through routine experiments.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a totally closed direct current motor of outer cooling type, includes device shell (1), its characterized in that, the inside right side fixed surface of device shell (1) installs motor case (2), the inside fixed mounting of motor case (2) has motor body (4), motor body (4) output end fixedly connected with small fan (3), motor case (2) right side fixed surface installs heating panel (25) and embeds on device shell (1) right side wall, motor body (4) current input end fixedly connected with wire (11) one end, install second sealing washer (13) between wire (11) and motor body (4), wire (11) other end fixedly connected with power cord (10), fixed mounting has first sealing washer (12) between power cord (10) and wire (11), the refrigeration device (14) is fixedly connected to the upper portion inside the device shell (1).

2. The external cooling type totally-enclosed direct current motor according to claim 1, wherein the refrigerating device (14) is composed of an air inlet hole sleeve (15), a magnetic bonder (16), a compressor (17), an air inlet pipe (18), a second valve (19), a first connecting pipe (20), a third valve (21), an ejector (22), a second connecting pipe (23) and an air outlet pipe (24), the third valve (21) is arranged on the surface of the right side of the air inlet pipe (18), the ejector (22) is fixedly connected to the tail end of the air inlet pipe (18), one end of the second connecting pipe (23) is fixedly connected to the right side of the ejector (22), the magnetic bonder (16) is fixedly connected to the other end of the second connecting pipe (23), the first connecting pipe (20) is fixedly connected to the upper end of the surface of the air inlet pipe (18), the second valve (19) is arranged on the surface of the first connecting pipe (20), the tail end of the first connecting pipe (20) is fixedly connected with a compressor (17).

3. An external cooling type totally-enclosed direct current motor as claimed in claim 2, wherein the upper end of the left side of the air inlet pipe (18) is fixedly connected with an air inlet hole sleeve (15), and the right side of the magnetic bonder (16) is fixedly connected with an air outlet pipe (24).

4. The external cooling type totally-enclosed direct current motor as claimed in claim 1, wherein a support rod (8) is fixedly connected to the bottom of the device housing (1), a base (9) is fixedly connected to the bottom of the support rod (8), and through holes (7) are formed in two sides of the upper surface of the base (9).

5. The external cooling type totally-enclosed direct current motor as claimed in claim 1, wherein the bottom of the right side of the device housing (1) is provided with an air outlet (5), and the surface of the air outlet (5) is provided with a first valve (6).