CN117639355A - Cooling device for traction motor of electric locomotive - Google Patents
Cooling device for traction motor of electric locomotive Download PDFInfo
- Publication number
- CN117639355A CN117639355A CN202311515853.4A CN202311515853A CN117639355A CN 117639355 A CN117639355 A CN 117639355A CN 202311515853 A CN202311515853 A CN 202311515853A CN 117639355 A CN117639355 A CN 117639355A
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- traction motor
- electric locomotive
- conducting plate
- base
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- 238000001816 cooling Methods 0.000 title claims abstract description 54
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 41
- 238000005057 refrigeration Methods 0.000 claims abstract description 56
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000005679 Peltier effect Effects 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a cooling device for an electric locomotive traction motor, which comprises a base, a panel, a refrigeration assembly and a heat dissipation assembly, wherein the base is provided with a cooling plate; the base is connected with the electric locomotive, the traction motor is arranged in the base, the panel and the refrigeration assembly are connected with the base to form a box-type structure, and the refrigeration assembly provides a low-temperature boundary for the traction motor; the heat dissipation assembly is fixed on the outer wall surface of the box structure, and fresh air is introduced to cool the refrigeration assembly. Compared with the prior art, the invention adopts the thermoelectric cooler as a cooling technology, can enable the heat absorbing surface to reach a temperature far lower than the environment in a short time, and can realize very accurate temperature control, thereby providing a stable low-temperature boundary for the traction motor; the invention does not adopt a complex water cooling system, and the adopted solid structure of the refrigeration component of the thermoelectric cooler and the cooling component of the fan has high reliability; the invention does not adopt a high-power ventilator, the working vibration of the adopted fan radiating component is small, and the electric noise of the adopted thermoelectric cooler is low.
Description
Technical Field
The invention relates to a motor cooling device, in particular to a cooling device for an electric locomotive traction motor.
Background
In tunnel engineering adopting earth pressure balance type shield tunneling, an electric locomotive is generally used for transporting and transferring segments, synchronous slurry and dregs. When the traction motor of the electric locomotive works, a large amount of heat is generated, so that the traction motor needs to be cooled by cooling equipment, and the continuous normal work of the traction motor is maintained. At present, the cooling mode of the traction motor mainly comprises air cooling and water cooling. The technical scheme of the traction motor with efficient cooling disclosed by the application number 202321720974.8 is that heat on the surface of the traction motor is led into the wind collecting cover through the heat conducting rod, and air flow is led into the wind collecting cover through the heat radiating fan, so that the cooling efficiency of the traction motor is improved, but the limited ventilation flow increased by the heat radiating fan in the technical scheme has poor cooling effect on the traction motor of the heavy-duty electric locomotive which continuously runs. The technical scheme of the cooling ventilator for the traction motor of the plateau electric locomotive disclosed by the application number 201420080097.7 ensures the normal working temperature of the traction motor through the high-flow cooling ventilator, but the vibration and the noise generated when the high-flow ventilator works are larger in the technical scheme. The technical scheme of the traction motor with high-efficiency cooling disclosed by the application number 202220039816.5 is used for radiating heat of a traction motor body in an air cooling mode, and cooling hot air through a cold water circulation system to achieve the purpose of high-efficiency cooling. The technical scheme of the ventilation cooling device for the railway traction motor disclosed by the application number 202022656105.6 improves the cooling effect of the traction motor in a water cooling-air cooling combined mode, but has higher sealing requirements on parts such as a water cooling pipe, a water pump, a water tank, a machine seat and the like, namely, the cooling device has potential reliability hazards of higher failure rate. Therefore, developing a cooling device for an electric locomotive traction motor with high cooling efficiency, high reliability and low vibration and noise is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the cooling device for the traction motor of the electric locomotive, so that the aims of high cooling efficiency, high reliability and low vibration and noise are fulfilled.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a cooling device for electric locomotive traction motor, includes base, panel, refrigeration subassembly and radiator unit, the base be connected with electric locomotive, base internally mounted traction motor, panel, refrigeration subassembly be connected with the base and form box structure, refrigeration subassembly is arranged in traction motor bottom, top and both sides, provides low temperature boundary for traction motor, radiator unit be fixed in box structure outer wall surface, cool down refrigeration subassembly through introducing fresh air.
Further, the base include preceding wallboard, back wallboard, bottom plate, loading board, support frame, preceding wallboard top center open and have semi-circular notch, the notch diameter is slightly greater than traction motor transmission shaft diameter, notch both sides are equipped with first horizontal locating piece in preceding wallboard outer wall, first air inlet groove has been seted up to preceding wallboard lower part, be equipped with filter screen in the first air inlet groove, first air inlet groove upper portion is equipped with first bracket in preceding wallboard inner wall, first bracket both sides are opened there is the bolt hole, preceding wallboard bottom outer wall is equipped with the connecting piece for firmly installing the base in the electric locomotive, back wallboard upper portion inner wall be equipped with second horizontal locating piece and first vertical locating piece, back wallboard lower part is opened there is the second air inlet groove, be equipped with filter screen in the second air inlet groove, second air inlet groove upper portion is equipped with the connecting piece in back wallboard inner wall, be used for firmly installing the base in the electric locomotive, bottom plate both sides be equipped with first strake top surface, first bracket upper portion has the screw hole, first bracket upper portion has the bolt hole, first bracket upper portion has the first bracket bolt hole, the top surface is equipped with first bracket, the first bracket has the first bracket bolt hole, the top surface has the first bracket to be equipped with the first bracket, the top surface has the first bracket has the vertical locating piece to be fixed plate, the top surface has, the first bracket has, the bracket has the first bracket has the vertical locating piece has, the top hole.
Further, the center of the bottom of the panel is provided with a semicircular notch, the diameter of the notch is slightly larger than that of a transmission shaft of the traction motor, third horizontal positioning sheets are arranged on the outer wall surface of the panel at two sides of the notch, fourth horizontal positioning sheets and fourth vertical positioning sheets are arranged on the inner wall surface of the upper part of the panel, and a bolt penetrates through the third horizontal positioning sheets and the first horizontal positioning sheets to install the panel on the front wall plate of the base.
Further, the refrigerating assembly is divided into a bottom refrigerating assembly, a side refrigerating assembly and a top refrigerating assembly, the three refrigerating assemblies comprise a heat conducting plate, radiating fins and thermoelectric coolers based on the Peltier effect, the heat conducting plate is made of metal materials with good heat conducting performance, the thermoelectric coolers are welded and arranged on one side of the heat conducting plate and are connected through circuits, during use, direct current is enabled to cool one face, which is contacted with the heat conducting plate, of the thermoelectric coolers through the thermoelectric coolers, and the other face, which is in contact with the heat conducting plate, of the thermoelectric coolers is heated, and the radiating fins are mounted on the heating face of the thermoelectric coolers in an adhesive mode.
Further, the normal direction of the radiating fins of the bottom type refrigeration component is perpendicular to the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the heat conducting plate bolt holes correspond to the bearing plate bolt holes, the first bracket bolt holes and the second bracket bolt holes, the bottom type refrigeration component is inserted into the sliding groove between the bearing plate and the first bracket and the second bracket, and the bolts penetrate through the bearing plate, the heat conducting plate, the first bracket and the second bracket to install the bottom type refrigeration component on the bottom surface of the bearing plate.
Further, the normal direction of the radiating fins of the side-type refrigeration assembly is consistent with the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the bolt holes of the heat conducting plate are respectively corresponding to the first vertical locating piece, the second vertical locating piece, the third vertical locating piece and the fourth vertical locating piece, and the bolts penetrate through the heat conducting plate and the vertical locating pieces to install the side-type refrigeration assembly on the top surface of the bearing plate.
Further, the normal direction of the radiating fins of the top type refrigeration component is consistent with the normal direction of the filter screen of the air inlet groove, the bolt holes are formed in the heat conducting plate, the bolt holes of the heat conducting plate correspond to the second horizontal positioning plate and the fourth horizontal positioning plate respectively, and the bolts penetrate through the heat conducting plate, the second horizontal positioning plate and the fourth horizontal positioning plate to install the top type refrigeration component above the side type refrigeration component.
Further, the heat dissipation assembly comprises an n-shaped cover and a fan, the n-shaped cover is made of high-temperature resistant engineering plastic, a second edge strip is arranged at the bottom of the n-shaped cover, a screw hole is formed in the second edge strip, the screw hole corresponds to the screw hole of the first edge strip, a screw penetrates through the second edge strip and the first edge strip to install the heat dissipation assembly on the outer wall surface of the box-shaped structure, a threading hole is formed in the top of the n-shaped cover, and the fan is fixed to the top of the cover and sucks air inside the cover out of the cover during use.
The beneficial effects of the invention are as follows:
compared with the prior art, the invention adopts the thermoelectric cooler as a cooling technology, can enable the heat absorbing surface to reach a temperature far lower than the environment in a short time, and can realize very accurate temperature control, thereby providing a stable low-temperature boundary for the traction motor; the invention does not adopt a complex water cooling system, and the adopted solid structure of the refrigeration component of the thermoelectric cooler and the cooling component of the fan has high reliability; the invention does not adopt a high-power ventilator, the working vibration of the adopted fan radiating component is small, and the electric noise of the adopted thermoelectric cooler is low.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of a cooling device for an electric locomotive traction motor according to the present invention;
FIG. 2 is a schematic cross-sectional view of a cooling apparatus for an electric locomotive traction motor according to the present invention;
FIG. 3 is a three view of a base in the cooling device for an electric locomotive traction motor of the present invention;
FIG. 4 is a three view of a faceplate of the cooling apparatus for an electric locomotive traction motor of the present invention;
FIG. 5 is a three view of a refrigeration assembly in the cooling apparatus for an electric locomotive traction motor of the present invention;
FIG. 6 is a three view of a heat dissipating assembly of the cooling device for an electric locomotive traction motor of the present invention;
in fig. 3 to 6, wherein: (a) is a front view, (b) is a left view, and (c) is a top view;
FIG. 7 is a schematic view of the flow direction of air in a longitudinal section in step S7 of the method for using the cooling device for an electric locomotive traction motor according to the present invention;
fig. 8 is a schematic diagram illustrating a cross-sectional air flow direction in step S7 of the method for using the cooling device for an electric locomotive traction motor according to the present invention.
In the figure, 1 is a base, 11 is a front wall plate, 111 is a first horizontal positioning sheet, 112 is a first air inlet slot, 113 is a first bracket, 114 is a base front connecting piece, 12 is a rear wall plate, 121 is a second horizontal positioning sheet, 122 is a first vertical positioning sheet, 123 is a second air inlet slot, 124 is a second bracket, 125 is a base rear connecting piece, 13 is a bottom plate, 131 is a first edge, 14 is a bearing plate, 141 is a second vertical positioning sheet, 142 is a third vertical positioning sheet, 15 is a support bracket, 2 is a panel, 201 is a third horizontal positioning sheet, 202 is a fourth horizontal positioning sheet, 203 is a fourth vertical positioning sheet, 3 is a refrigeration assembly, 31 is a bottom type refrigeration assembly, 32 is a side type refrigeration assembly, 33 is a top type refrigeration assembly, 301 is a heat conducting plate, 302 is a heat radiating fin, 303 is a thermoelectric cooler, 4 is a heat radiating assembly, 41 is a cover, 411 is a second edge, 42 is a fan, and 5 is a traction motor.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. Note that the following description of the embodiments is merely an example, and the present invention is not intended to be limited to the applications and uses thereof, and is not intended to be limited to the following embodiments.
As shown in fig. 1 to 6, the cooling device for a traction motor of an electric locomotive provided by the embodiment of the invention comprises a base 1, a panel 2, a refrigeration component 3 and a heat dissipation component 4, wherein the base 1 is connected with the electric locomotive, a traction motor 5 is installed inside the base 1, the panel 2 and the refrigeration component 3 are connected with the base 1 to form a box-shaped structure, the refrigeration component 3 is arranged between the traction motor 5 and the base 1 to provide a low-temperature boundary for the traction motor 5, the heat dissipation component 4 is fixed on the outer wall surface of the box-shaped structure, and fresh air is introduced to cool the refrigeration component 3.
As shown in fig. 3 (a), (b) and (c), the base 1 comprises a front wall plate 11, a rear wall plate 12, a bottom plate 13, a bearing plate 14 and a bearing bracket 15, wherein a semicircular notch is formed in the center of the top of the front wall plate 11, the diameter of the notch is slightly larger than that of a transmission shaft of a traction motor, first horizontal positioning sheets 111 are arranged on the outer wall surfaces of the front wall plate at two sides of the notch, a first air inlet groove 112 is formed in the lower part of the front wall plate, a filter screen is arranged in the first air inlet groove 112, a first bracket 113 is arranged on the upper part of the first air inlet groove, bolt holes are formed on the two sides of the first bracket 113, a connecting piece 114 is arranged on the outer wall surface of the bottom of the front wall plate and used for firmly installing the base 1 in an electric locomotive, a second horizontal positioning sheet 121 and a first vertical positioning sheet 122 are arranged on the inner wall surface of the upper part of the rear wall plate 12, a second air inlet groove 123 is formed on the lower part of the rear wall plate, the second air inlet slot 123 is internally provided with a filter screen, the upper part of the second air inlet slot is provided with a second bracket 124 on the inner wall surface of the rear wall plate, two sides of the second bracket 124 are provided with bolt holes, the outer wall surface of the bottom of the rear wall plate is provided with a connecting piece 125 for firmly installing the base 1 in an electric locomotive, two sides of the top surface of the bottom plate are provided with first side strips 131, the first side strips 131 are provided with screw holes, the bearing plate 14 is fixed on the upper parts of the first bracket 113 and the second bracket 124, a chute is formed between the bearing plate 14 and the first bracket 113 and the second bracket 124, the rear part of the top surface of the bearing plate is provided with a second vertical positioning piece 141, the front part of the top surface of the bearing plate is provided with a third vertical positioning piece 142, four corner points of the bearing plate are provided with bolt holes, the bearing plate bolt holes correspond to the bolt holes of the first bracket bolt holes and the second bracket bolt holes, the bearing bracket 15 is fixed on the top surface of the bearing plate 14, for firmly mounting the traction motor 5 on the carrier plate 14.
As shown in fig. 4 (a), (b) and (c), a semicircular notch is formed in the bottom center of the panel 2, the diameter of the notch is slightly larger than that of the transmission shaft of the traction motor, third horizontal positioning pieces 201 are arranged on the outer wall surfaces of the panel at two sides of the notch, fourth horizontal positioning pieces 202 and fourth vertical positioning pieces 203 are arranged on the inner wall surface of the upper part of the panel, and bolts penetrate through the third horizontal positioning pieces 201 and the first horizontal positioning pieces 111 to mount the panel 2 on the front wall plate 11 of the base.
As shown in (a), (b) and (c) of fig. 5, the refrigeration unit 3 is divided into three types of a bottom refrigeration unit 31, a side refrigeration unit 32 and a top refrigeration unit 33, and each of the three refrigeration units comprises a heat-conducting plate 301, a heat-radiating fin 302 and a thermoelectric cooler 303 based on peltier effect, wherein the heat-conducting plate 301 is made of a metal material with good heat-conducting property, the thermoelectric coolers 303 are welded on one side of the heat-conducting plate 301 and are connected through a circuit, and during use, direct current is passed through the thermoelectric coolers 303 to cool the side in contact with the heat-conducting plate 301 while the other side in contact with the air is heated, and the heat-radiating fin 302 is adhesively mounted on the heating surface of the thermoelectric coolers 303.
The normal direction of the radiating fins of the bottom type refrigeration component is perpendicular to the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the heat conducting plate bolt holes correspond to the bearing plate bolt holes, the first bracket bolt holes and the second bracket bolt holes, the bottom type refrigeration component 31 is inserted into the sliding grooves between the bearing plate 14 and the first bracket 113 and the second bracket 124, and the bolts penetrate through the bearing plate 14, the heat conducting plate, the first bracket 113 and the second bracket 124 to install the bottom type refrigeration component 31 on the bottom surface of the bearing plate 14.
The normal direction of the radiating fins of the side refrigeration assembly is consistent with the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the bolt holes of the heat conducting plate correspond to the first vertical positioning piece 122, the second vertical positioning piece 141, the third vertical positioning piece 142 and the fourth vertical positioning piece 203 respectively, and the bolts penetrate through the heat conducting plate and the vertical positioning pieces to install the side refrigeration assembly 32 on the top surface of the bearing plate 14.
The normal direction of the cooling fins of the top type refrigeration component is consistent with the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the bolt holes of the heat conducting plate are respectively corresponding to the second horizontal positioning piece 121 and the four horizontal positioning pieces 202, and the bolts penetrate through the heat conducting plate, the second horizontal positioning piece 121 and the four horizontal positioning pieces 202 to install the top type refrigeration component 33 above the side type refrigeration component 32.
As shown in fig. 6 (a), (b) and (c), the heat dissipating component 4 includes an n-shaped cover 41 and a fan 42, the cover 41 is made of high temperature resistant engineering plastic, a second edge 411 is provided at the bottom of the cover, a screw hole is provided on the second edge 411, the screw hole corresponds to the screw hole of the first edge, the screw penetrates through the second edge and the first edge to mount the heat dissipating component 4 on the outer wall of the box structure, a threading hole is provided at the top of the cover 41, and the fan 42 is fixed at the top of the cover 41 to suck the air inside the cover to the outside during use.
As shown in fig. 7 and 8, a method for using a cooling device for an electric locomotive traction motor according to an embodiment of the present invention includes the following steps:
step 1: the base 1 is firmly installed in the electric locomotive by using bolts through the connectors 114, 125. The traction motor 5 is vertically placed in the base 1, so that the traction motor 5 is firmly attached to the bearing plate 14 and the support bracket 15, and the traction motor 5 is firmly installed on the bearing plate 14 and the support bracket 15 by using bolts.
Step 2: the panel 2 is mounted on the base front wall panel 11 using bolts through the third horizontal positioning piece 201 and the first horizontal positioning piece 111.
Step 3: the bottom type refrigerating assembly 31 is inserted into the sliding groove between the bearing plate 14 and the first bracket 113 and the second bracket 124, and the bolts penetrate through the bearing plate 14, the heat-conducting plate, the first bracket 113 and the second bracket 124, so that the bottom type refrigerating assembly 31 is mounted on the bottom surface of the bearing plate 14.
Step 4: the side type refrigeration assembly 32 is mounted on the top surface of the carrier plate 14 by using bolts to pass through the side type refrigeration assembly heat conduction plate and the first vertical positioning piece 122, the second vertical positioning piece 141, the third vertical positioning piece 142 and the fourth vertical positioning piece 203.
Step 5: the top type refrigeration assembly 33 is mounted above the side type refrigeration assembly 32 using bolts through the top type refrigeration assembly heat transfer plate, the second horizontal positioning sheet 121, and the four horizontal positioning sheets 202.
Step 6: the heat dissipation assembly 4 is pushed in from the back to the front and wraps the box-shaped structure formed by the base 1, the panel 2 and the refrigerating assembly 3, and the power supply cables of the traction motor 5 and the thermoelectric cooler 303 are led out from the threading holes at the top of the cover 41.
Step 7: the thermoelectric cooler 303 and fan 42 are turned on. The heat absorbing surface of the thermoelectric cooler cools the heat conducting plate 301 to provide a stable low temperature boundary for the traction motor; fresh air flows in from the first air inlet groove 112 and the second air inlet groove 123, flows upwards along an air duct formed by the cover 41 and the refrigerating assembly 3, and is finally sucked out of the cover 41 by the fan 42, so that the heating surface of the thermoelectric cooler 303 is cooled.
The foregoing detailed description of embodiments of the invention has been presented only as a preferred embodiment of the invention and should not be considered as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the present invention are intended to fall within the scope of the present patent.
Claims (8)
1. The utility model provides a cooling device for electric locomotive traction motor which characterized in that: the electric locomotive comprises a base, a panel, a refrigeration assembly and a heat dissipation assembly, wherein the base is connected with the electric locomotive, a traction motor is installed in the base, the panel and the refrigeration assembly are connected with the base to form a box-shaped structure, the refrigeration assembly is arranged at the bottom, the top and two sides of the traction motor to provide a low-temperature boundary for the traction motor, and the heat dissipation assembly is fixed on the outer wall surface of the box-shaped structure and cools the refrigeration assembly by introducing fresh air.
2. The cooling device for an electric locomotive traction motor according to claim 1, wherein: the base include preceding wallboard, back wallboard, bottom plate, loading board, support frame, preceding wallboard top center open and have semi-circular notch, notch diameter slightly is greater than traction motor transmission shaft diameter, notch both sides are equipped with first horizontal locating piece in preceding wallboard outer wall, first air inlet groove has been seted up to preceding wallboard lower part, be equipped with filter screen in the first air inlet groove, first air inlet groove upper portion is equipped with first bracket in preceding wallboard inner wall, first bracket both sides are opened there is the bolt hole, preceding wallboard bottom outer wall is equipped with the connecting piece for firmly install the base in the electric locomotive, back wallboard upper portion inner wall be equipped with second horizontal locating piece and first vertical locating piece, the back wallboard lower part is opened there is the second air inlet groove, second air inlet groove upper portion is equipped with filter screen in back wallboard inner wall, second bracket both sides are opened there is the bolt hole, back wallboard bottom outer wall is equipped with the connecting piece for firmly install the base in the electric locomotive, the bottom plate both sides be equipped with first strake, first bracket upper portion has the screw hole, first bracket upper portion has, first bracket upper portion and second bracket upper portion has the bolt hole, second bracket upper portion and first bracket upper portion have the first bracket bolt hole, the top surface is equipped with the first bracket, the top surface has the first bracket to form firm top surface with the first bracket, the top surface has the first bracket to draw the top surface to be equipped with the first bracket, the top surface has, the first bracket has the first bracket, the vertical bracket has the first bracket, the top bracket has the first bracket has the vertical bracket.
3. The cooling device for an electric locomotive traction motor according to claim 1, wherein: the center of the bottom of the panel is provided with a semicircular notch, the diameter of the notch is slightly larger than that of a transmission shaft of the traction motor, the two sides of the notch are provided with third horizontal positioning sheets on the outer wall surface of the panel, the inner wall surface of the upper part of the panel is provided with fourth horizontal positioning sheets and fourth vertical positioning sheets, and a bolt penetrates through the third horizontal positioning sheets and the first horizontal positioning sheets to mount the panel on the front wall plate of the base.
4. The cooling device for an electric locomotive traction motor according to claim 1, wherein: the refrigerating assembly is divided into a bottom refrigerating assembly, a side refrigerating assembly and a top refrigerating assembly, the three refrigerating assemblies comprise a heat conducting plate, radiating fins and thermoelectric coolers based on the Peltier effect, the heat conducting plate is made of metal materials with good heat conducting performance, the thermoelectric coolers are welded and arranged on one side of the heat conducting plate and are connected through circuits, during use, direct current is enabled to cool one face, which is contacted with the heat conducting plate, of the thermoelectric coolers through the thermoelectric coolers, and the other face, which is in contact with the heat conducting plate, of the thermoelectric coolers is heated, and the radiating fins are mounted on the heating face of the thermoelectric coolers in an adhesive mode.
5. The cooling device for an electric locomotive traction motor according to claim 4, wherein: the heat-conducting plate is provided with a heat-conducting plate bolt hole, the heat-conducting plate bolt hole corresponds to the bearing plate bolt hole, the first bracket bolt hole and the second bracket bolt hole, the bottom-type refrigeration component is inserted into a chute between the bearing plate and the first bracket and the second bracket, and the bolt penetrates through the bearing plate, the heat-conducting plate, the first bracket and the second bracket to install the bottom-type refrigeration component on the bottom surface of the bearing plate.
6. The cooling device for an electric locomotive traction motor according to claim 4, wherein: the normal direction of the radiating fins of the side type refrigeration component is consistent with the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the bolt holes of the heat conducting plate are respectively corresponding to the first vertical locating piece, the second vertical locating piece, the third vertical locating piece and the fourth vertical locating piece, and the bolts penetrate through the heat conducting plate and the vertical locating pieces to install the side type refrigeration component on the top surface of the bearing plate.
7. The cooling device for an electric locomotive traction motor according to claim 4, wherein: the normal direction of the radiating fins of the top type refrigeration component is consistent with the normal direction of the filter screen of the air inlet groove, the heat conducting plate is provided with bolt holes, the bolt holes of the heat conducting plate are respectively corresponding to the second horizontal positioning piece and the fourth horizontal positioning piece, and the bolts penetrate through the heat conducting plate, the second horizontal positioning piece and the fourth horizontal positioning piece to install the top type refrigeration component above the side type refrigeration component.
8. The cooling device for an electric locomotive traction motor according to claim 1, wherein: the heat dissipation assembly comprises an n-shaped cover and a fan, the n-shaped cover is made of high-temperature resistant engineering plastic, a second edge strip is arranged at the bottom of the n-shaped cover, a screw hole is formed in the second edge strip, the screw hole of the second edge strip corresponds to that of the screw hole of the first edge strip, a screw penetrates through the second edge strip and the first edge strip to install the heat dissipation assembly on the outer wall surface of the box-shaped structure, a threading hole is formed in the top of the n-shaped cover, and the fan is fixed to the top of the cover and sucks air inside the cover out of the cover during use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311515853.4A CN117639355A (en) | 2023-11-14 | 2023-11-14 | Cooling device for traction motor of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311515853.4A CN117639355A (en) | 2023-11-14 | 2023-11-14 | Cooling device for traction motor of electric locomotive |
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| Publication Number | Publication Date |
|---|---|
| CN117639355A true CN117639355A (en) | 2024-03-01 |
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ID=90024464
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311515853.4A Pending CN117639355A (en) | 2023-11-14 | 2023-11-14 | Cooling device for traction motor of electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117639355A (en) |
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2023
- 2023-11-14 CN CN202311515853.4A patent/CN117639355A/en active Pending
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