A cooling motor for transportation equipment

Abstract

The present invention discloses a cooling motor for transportation equipment, which relates to the technical field of cooling motors, including an installation bottom shell, wherein a bottom side heat dissipation fin is provided inside the installation bottom shell; a stator-rotor assembly is cooperatively installed above the bottom side heat dissipation fin; an upper heat dissipation fin is fitted on the upper side of the stator-rotor assembly; a top shell is provided above the upper heat dissipation fin; the present invention integrates natural heat dissipation, natural wind heat dissipation, fan heat dissipation and refrigerant heat dissipation, and fully considers the spatial layout and operation stability of the cooling motor, so that various components of the cooling system can be reasonably installed in a limited space without affecting the normal operation and maintenance of other equipment; by optimizing the structure and airflow path of the cooling system and other measures, while meeting the cooling effect, the energy utilization efficiency is improved, the energy consumption is reduced, and the motor is made easier to disassemble and maintain.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of cooling motors, in particular to a cooling motor used in transportation equipment. Background Art

[0002] When transportation equipment is in operation, the motor needs to withstand high loads for a long time, generating a large amount of heat. Therefore, the cooling system must be able to dissipate the heat quickly and effectively to prevent the motor from overheating and ensure that it operates within the optimal operating temperature range. For example, the traction motor of a subway vehicle requires an efficient cooling system to maintain normal operation. The cooling of the motor should ensure that the temperature inside the motor is evenly distributed to avoid local overheating. This helps to extend the service life of the motor and reduce problems such as component damage and performance degradation caused by uneven temperature.

[0003] The internal space of transportation equipment is usually limited. The design of the cooling motor must fully consider the spatial layout, so that the various components of the cooling system can be reasonably installed in the limited space without affecting the normal operation and maintenance of other equipment. However, when cooling the motors on existing transportation equipment, other cooling devices are required to cool the motors. For example, water cooling devices or fin heat dissipation devices are directly superimposed on the motors. This undoubtedly increases the installation space requirements of the motors. In addition, the installed motors are difficult to disassemble and install, making it inconvenient for daily inspection, maintenance, and component replacement. Summary of the Invention

[0004] The present invention aims to provide a cooled motor for transportation equipment, wherein the relevant components are arranged compactly to save space and facilitate overall layout optimization. By optimizing the cooling system structure and airflow path, the present invention improves energy efficiency, reduces energy consumption, and enhances the ease of disassembly and maintenance of the motor while maintaining sufficient cooling performance. This addresses the technical problems identified in the aforementioned background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cooling motor for transportation equipment includes a cooling motor installed on a subway traction trolley. The cooling motor includes a mounting bottom shell, wherein bottom heat dissipation fins are provided inside the mounting bottom shell; a stator-rotor assembly is mounted above the bottom heat dissipation fins; an upper heat dissipation fin is mounted above the stator-rotor assembly; and a top shell is provided above the upper heat dissipation fins.

[0007] The bottom side heat dissipation fins are provided in multiple groups, gaps are reserved between the multiple groups of bottom side heat dissipation fins, and cooling pipes are provided in the gaps; the cooling pipes are cooperatively connected to the top shell;

[0008] Elastic brackets are clamped on both sides of multiple groups of bottom side heat dissipation fins, and a clamping piece is buckled on each elastic bracket; a plurality of protrusions are provided on the upper surface of the clamping piece for clamping and fixing the cooling pipe; a rear shell is also buckled on one side of the mounting bottom shell.

[0009] As a further technical solution of the present invention, the mounting bottom shell includes a bottom shell having a bolt groove at the bottom thereof for facilitating bolt fixation with the subway traction trolley, two L-shaped brackets being fixed to the inner end of the bottom shell, and a through groove being formed on the upper surface of the L-shaped bracket;

[0010] A card frame is fixed on the end surface of the bottom shell connected to one end of the rear shell, and a plurality of fixing ears are provided on the inner side of the card frame.

[0011] As a further technical solution of the present invention, the bottom heat dissipation fins include a plurality of fin bodies, each of which has a downward arc-shaped groove in the middle, and a pressing plane is provided on both sides of the arc-shaped groove for pressing against the L-shaped bracket;

[0012] Ventilation slots are provided on both sides of the lower end of the fin body, and a strip plate is provided in each ventilation slot; the strip plate is fixed to the bottom shell by bolts; grooves are provided on both sides of the fin body for facilitating the clamping and fixing of the elastic bracket.

[0013] As a further technical solution of the present invention, the cooling pipe is arranged in an arc shape along the radial direction of the stator-rotor assembly, and both ends are horizontal; the cooling pipe is arranged in an S shape along the axial direction of the stator-rotor assembly; one end of the cooling pipe is connected to the liquid inlet pipe.

[0014] As a further technical solution of the present invention, the upper end of the elastic bracket is clamped in the circular hole opened at the upper end of the fin body, and the lower end of the elastic bracket is clamped in the groove;

[0015] The bottoms of both ends of the clamping piece are provided with a C-shaped clamping socket, and are clamped and fixed with the upper end of the elastic bracket.

[0016] As a further technical solution of the present invention, the top shell includes an end plate, to which an upper shell is fixed; a cooling cavity is provided inside the upper shell; a liquid inlet pipe and a liquid outlet pipe are connected to the outside of the cooling cavity; and fixed side wings are integrally provided on both sides of the upper shell.

[0017] As a further technical solution of the present invention, the bottom of the upper shell is arranged in an arc shape, and the bottom of the upper shell is fittedly connected to the upper heat dissipation fin; the bottom of the upper heat dissipation fin has a semicircular groove and is clamped on the stator and rotor assembly;

[0018] An elastic bracket is further provided at the bottom of the upper shell; a plurality of the elastic brackets are provided, and the tops of the plurality of elastic brackets are connected with arc-shaped pieces, which are fixed to the upper shell by screws.

[0019] As a further technical solution of the present invention, the rear shell includes a rear housing, a bearing support block for mounting and supporting the stator and rotor assembly is provided inside the rear housing, and an air filter is integrally provided on the outer side of the rear housing;

[0020] The rear shell is slidably connected to the card frame, and a plurality of bolt holes are opened on the bottom of the rear shell. Bolts connected with the fixing ears are arranged in the bolt holes.

[0021] As a further technical solution of the present invention, the cooling motor is connected to the reducer through a bevel gear set; the power output end of the reducer is also connected to the traction suspension, and transmission wheels are installed at both ends of the traction suspension, and the transmission wheels are arranged on the track;

[0022] The subway traction trolleys are provided in multiple groups, and the multiple subway traction trolleys are fixed under the subway traction trolley chassis.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In this invention, the bottom heat dissipation fins are fitted and fixed to the stator-rotor assembly, and the top is fitted and connected to the upper heat dissipation fins. Heat is dissipated from the stator-rotor assembly by the bottom heat dissipation fins and the upper heat dissipation fins. By rationally optimizing the installation position and space of the bottom heat dissipation fins and the upper heat dissipation fins, the motor back structure is compactly arranged, saving space and facilitating overall layout optimization. This allows the various components of the cooling system to be rationally installed within a limited space without affecting the normal operation and maintenance of other equipment.

[0025] 2. In the present invention, when the fin body is installed inside the bottom shell, the L-shaped bracket is on the pressing plane, thereby using the L-shaped bracket to press the fin body and at the same time limit the fin body in the front and back and left and right directions, thereby preventing displacement during normal use;

[0026] 3. In this invention, the cooling tubes are arranged in an S-shape along the axial direction of the stator and rotor assemblies and spaced apart from the multiple groups of fins. The fins transfer heat generated by the stator and rotor assemblies. When the refrigerant enters the cooling tubes, the cooling tubes remove heat from the fins, thereby achieving rapid heat conduction and heat dissipation.

[0027] 4. The present invention integrates natural heat dissipation, natural wind heat dissipation, fan heat dissipation and refrigerant heat dissipation, and fully considers the spatial layout and operational stability of the cooling motor, so that the various components of the cooling system can be reasonably installed in a limited space without affecting the normal operation and maintenance of other equipment; by optimizing the structure and airflow path of the cooling system and other measures, while meeting the cooling effect, the energy utilization efficiency is improved, the energy consumption is reduced, and the motor is easy to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of a subway traction trolley of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the subway tractor chassis of the present invention.

[0030] Figure 3 It is a schematic diagram of the cooling motor structure in the present invention.

[0031] Figure 4 In the present invention Figure 3 Schematic diagram from another perspective.

[0032] Figure 5 In the present invention Figure 3 Schematic diagram of the bottom structure.

[0033] Figure 6 In the present invention Figure 3 main view.

[0034] Figure 7 In the present invention Figure 6 AA cross-sectional view.

[0035] Figure 8 In the present invention Figure 6 BB cross-sectional view.

[0036] Figure 9 In the present invention Figure 5 Schematic diagram of the internal structure.

[0037] Figure 10 In the present invention Figure 9 Schematic diagram from another perspective.

[0038] Figure 11 In the present invention Figure 9 Schematic diagram of part of the structure.

[0039] Figure 12 In the present invention Figure 3 Schematic diagram of the split structure.

[0040] Figure 13 In the present invention Figure 12 Schematic diagram of the bottom side structure.

[0041] Figure 14 In the present invention Figure 13 Schematic diagram from another perspective.

[0042] Figure 15 In the present invention Figure 14 Schematic diagram from another perspective.

[0043] Figure 16 It is a structural schematic diagram of the top shell in the present invention.

[0044] Figure 17 In the present invention Figure 10 A partial enlarged schematic diagram.

[0045] Figure 18 In the present invention Figure 12 A partial enlarged schematic diagram.

[0046] In the picture: 1-Metro tractor trolley, 200-Metro tractor chassis

[0047] 101-cooling motor, 102-bevel gear set, 103-reducer, 104-traction suspension, 105-drive wheel, 106-track;

[0048] 1- Install the bottom shell, 2- Bottom side heat sink, 3- Cooling pipe, 4- Elastic bracket, 5- Clip, 6- Stator and rotor assembly, 7- Upper heat sink, 8- Top shell, 9- Rear shell;

[0049] 11- bottom shell, 12- bolt slot, 13- L-shaped bracket, 14- bracket, 15- fixing ear;

[0050] 21- fin body, 22- strip plate, 23- groove, 24- pressing plane;

[0051] 81-end plate, 82-upper shell, 83-elastic bracket, 84-ventilation hole, 85-liquid inlet pipe, 86-liquid outlet pipe, 87-cooling chamber, 88-fixed side wings;

[0052] 91-rear housing, 92-air filter, 93-bearing support block. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0054] See also Figures 1 to 18In an embodiment of the present invention, a cooling motor for transportation equipment includes a cooling motor 101 installed on a subway traction trolley 100. The cooling motor 101 includes a mounting base 1, and a bottom heat dissipation fin 2 is provided inside the mounting base 1; a stator-rotor assembly 6 is mounted above the bottom heat dissipation fin 2; an upper heat dissipation fin 7 is mounted above the stator-rotor assembly 6; and a top housing 8 is provided above the upper heat dissipation fin 7.

[0055] The bottom side heat dissipation fins 2 are provided in multiple groups, and gaps are reserved between the multiple groups of bottom side heat dissipation fins 2. Cooling pipes 3 are provided in the gaps; the cooling pipes 3 are connected to the top shell 8;

[0056] Elastic brackets 4 are clamped on both sides of multiple groups of bottom side heat dissipation fins 2, and a clamping piece 5 is clamped on each elastic bracket 4; the upper surface of the clamping piece 5 is provided with multiple protrusions for clamping and fixing the cooling tube 3; the rear shell 9 is also clamped on one side of the mounting bottom shell 1.

[0057] By adopting the above technical solution, during installation, the bottom side heat dissipation fins 2 are installed and fixed using the installation bottom shell 1, and the cooling tubes 3 are installed in the multiple groups of heat dissipation fins 2, and then the multiple groups of heat dissipation fins 2 are clamped and fixed by the elastic bracket 4, and then a clamping piece 5 is buckled on the elastic bracket 4, and the cooling tubes 3 are fixed by the clamping piece 5, so that the bottom side heat dissipation fins 2, cooling tubes 3, elastic bracket 4 and clamping piece 5 are assembled;

[0058] The bottom heat dissipation fins 2 are fitted and fixed to the stator-rotor assembly 6, and the top is fitted and connected to the upper heat dissipation fins 7. The stator-rotor assembly 6 is cooled by the bottom heat dissipation fins 2 and the upper heat dissipation fins 7. By reasonably optimizing the installation position and space of the bottom heat dissipation fins 2 and the upper heat dissipation fins 7, the back structure of the motor is compactly arranged to save space and facilitate overall layout optimization; the various components of the cooling system can be reasonably installed in a limited space without affecting the normal operation and maintenance of other equipment.

[0059] See also Figure 8 、 Figure 13 and Figure 14 In this embodiment, the mounting base 1 includes a bottom shell 11. The bottom of the bottom shell 11 is provided with a bolt slot 12 for fastening the bolts to the subway traction trolley 100. Two L-shaped brackets 13 are fixed to the inner end of the bottom shell 11, and a through groove is provided on the upper surface of the L-shaped bracket 13.

[0060] A bracket 14 is fixed on the end surface of the bottom shell 11 connected to one end of the rear shell 9 , and a plurality of fixing ears 15 are provided on the inner side of the bracket 14 .

[0061] By adopting the above technical solution, the bottom shell 11 is installed with bolts through the bolt grooves 12 opened at the bottom, and the bolts are used to traction the subway trolley 100; the L-shaped bracket 13 can press the bottom side heat dissipation fins 2 to prevent the bottom side heat dissipation fins 2 from shaking inside the bottom shell 11; at the same time, the stability of the stator-rotor assembly 6 installed on the bottom side heat dissipation fins 2 during rotation is ensured.

[0062] Please see the attached Figure 17 In this embodiment, the bottom heat dissipation fin 2 includes a plurality of fin bodies 21, each of which has a downward arc-shaped groove in the middle, and a pressing plane 24 is provided on both sides of the arc-shaped groove to fit tightly with the L-shaped bracket 13;

[0063] Ventilation slots are provided on both sides of the lower end of the fin body 21, and a strip plate 22 is provided in each ventilation slot; the strip plate 22 is fixed to the bottom shell 11 by bolts; grooves 23 are provided on both sides of the fin body 21 for facilitating the clamping and fixing of the elastic bracket 4.

[0064] By adopting the above technical solution, when the fin body 21 is installed inside the bottom shell 11, the L-shaped bracket 13 is on the clamping plane 24, so that the L-shaped bracket 13 can be used to compress the fin body 21, while limiting the fin body 21 in the front and back and left and right directions, thereby avoiding displacement during normal use.

[0065] The strip plate 22 is fixed to the bottom shell 11 by bolts, thereby improving the fixing effect of the fin body 21 .

[0066] Please see the attached Figure 11 In this embodiment, the cooling pipe 3 is arranged in an arc shape along the radial direction of the stator-rotor assembly 6, and both ends are horizontal; the cooling pipe 3 is arranged in an S shape along the axial direction of the stator-rotor assembly 6; one end of the cooling pipe 3 is connected to the liquid inlet pipe 85.

[0067] By adopting the above technical solution, the cooling tube 3 is arranged in an S shape along the axial direction of the stator-rotor assembly 6, and is spaced apart from the multiple groups of fin bodies 21. The fin bodies 21 transfer the heat generated by the stator-rotor assembly 6; when the refrigerant enters the cooling tube 3, the cooling tube 3 takes away the heat from the fin body 21, thereby achieving the effect of rapid heat conduction and heat dissipation.

[0068] Please see the attached Figure 11 and Figure 17 In this embodiment, the upper end of the elastic bracket 4 is clamped in the circular hole opened at the upper end of the fin body 21, and the lower end of the elastic bracket 4 is clamped in the groove 23;

[0069] The bottom of both ends of the clamping member 5 has a C-shaped clamping socket, and is clamped and fixed to the upper end of the elastic bracket 4.

[0070] By adopting the above technical solution, the setting of the clamping member 5 is mainly used for clamping and fixing the two sides of the upper end of the cooling tube 3, and the elastic bracket 4 is clamped and fixed to the fin body 21; in this way, the integrity of the clamping member 5, the elastic bracket 4 and the fin body 21 can be ensured, thereby avoiding the shaking of the cooling tube 3.

[0071] Please see the attached Figure 16 In this embodiment, the top shell 8 includes an end plate 81, on which an upper shell 82 is fixed; the upper shell 82 has a cooling cavity 87 inside; the outside of the cooling cavity 87 is connected to a liquid inlet pipe 85 and a liquid outlet pipe 86; fixed side wings 88 are integrally provided on both sides of the upper shell 82.

[0072] In this embodiment, the bottom of the upper shell 82 is arranged in an arc shape, and the upper heat dissipation fin 7 is attached to the bottom of the upper shell 82; the bottom of the upper heat dissipation fin 7 has a semicircular groove and is clamped on the stator rotor assembly 6;

[0073] An elastic bracket 83 is further provided at the bottom of the upper shell 82 ; there are multiple elastic brackets 83 , and the tops of the multiple elastic brackets 83 are connected with arc-shaped pieces, which are fixed to the upper shell 82 by screws.

[0074] By adopting the above technical solution, fixed side wings 88 are integrally provided on both sides of the upper shell 82, and the fixed side wings 88 are inserted into the mounting bottom shell 1 and fixed by bolts; the end plate 81 is tightly attached to and fixed to the bottom shell 11; then the elastic bracket 83 is fixed to the bottom side of the upper shell 82, and the bottom side of the elastic bracket 83 is elastically pressed on the stator-rotor assembly 6; the inner side of the elastic bracket 83 is abutted against the upper heat dissipation fin 7; the setting of the elastic bracket 83 can press and fix the stator-rotor assembly 6; the inner end of the heat dissipation fin 7 is abutted and fixed against the end plate 81, and the outer side is abutted against the elastic bracket 83; it can prevent the heat dissipation fin 7 from axial movement, thereby ensuring the stability of the motor operation.

[0075] Please see the attached Figures 13 to 15 In this embodiment, the rear shell 9 includes a rear shell 91, a bearing support block 93 for mounting and supporting the stator-rotor assembly 6 is provided inside the rear shell 91, and an air filter 92 is integrally provided on the outer side of the rear shell 91;

[0076] The rear housing 91 is slidably connected to the bracket 14 , and a plurality of bolt holes are provided at the bottom of the rear housing 91 , wherein bolts connected to the fixing ears 15 are provided in the bolt holes.

[0077] As a further explanation of this embodiment, the stator-rotor assembly 6 is composed of a stator, a rotor, and a shaft. Based on the existing technology, it is not repeated here; it should also be noted that the stator in the stator-rotor assembly 6 is fixed to the upper heat dissipation fins 7 and the bottom heat dissipation fins 2.

[0078] By adopting the above technical solution, the rear shell 91 is slidably connected to the bracket 14 and is locked and fixed with the fixing ears 15 by bolts, thereby realizing the rapid installation of the rear shell 9 and the mounting bottom shell 1 and the top shell 8, and the shaft in the stator-rotor assembly 6 is matched and connected through the bearing support block 93; through the above arrangement, the quick disassembly effect of the cooling motor is improved, and daily inspection, maintenance and replacement of components are facilitated.

[0079] In this embodiment, the cooling motor 101 is connected to the reducer 103 through a bevel gear set 102; the power output end of the reducer 103 is also connected to the traction suspension 104, and transmission wheels 105 are installed at both ends of the traction suspension 104. The transmission wheels 105 are arranged on a track 106.

[0080] The subway traction trolleys 100 are provided in multiple groups, and the multiple subway traction trolleys 100 are fixed under the subway traction trolley chassis 200 .

[0081] By adopting the above technical solution, the cooling motor 101 transmits power to the reducer 103 through the bevel gear set 102, and the reducer 103 realizes the rotation of the driving wheel 105 through the traction suspension 104, so that the subway traction trolley 100 can move along the track 106.

[0082] As a further illustration of the above embodiment, when in use, the subway traction trolley 100 travels at high speed along the track 106, and the bottom side heat dissipation fins 2 conduct heat to the stator-rotor assembly 6, thereby dissipating the heat generated by the stator-rotor assembly 6; since ventilation grooves are provided on both sides of the lower end of the fin body 21, and ventilation holes 84 are also provided under the end plate 81; therefore, when the subway traction trolley 100 is traveling, wind will enter the interior of the mounting base 1 through the ventilation holes 84, and the wind will pass through the ventilation grooves at the lower end of the fin body 21, and the heat will be taken away by natural wind, thereby accelerating the heat dissipation of the fin body 21.

[0083] In addition, a temperature probe can be installed on the bottom heat sink 2 or the upper heat sink 7, and connected to the PID controller; the temperature of the bottom heat sink 2 or the upper heat sink 7 is monitored by the temperature probe, and when the natural wind is not enough to dissipate heat, the cooling device transmits the refrigerant to the cooling pipe 3, and then enters the cooling cavity 87 inside the upper shell 82 through the cooling pipe 3 and the liquid inlet pipe 85. After the refrigerant is introduced, the heat dissipation effect and speed of the bottom heat sink 2 and the upper heat sink 7 are improved, thereby improving the cooling efficiency of the cooling motor.

[0084] The cooling device in this embodiment can be an air-conditioning unit for transportation equipment or a water-cooling device.

[0085] The present invention utilizes the bottom heat dissipation fins 2 and the upper heat dissipation fins 7 to conduct heat dissipation to the stator rotor assembly 6. The bottom heat dissipation fins 2 and the upper heat dissipation fins 7 are both arranged in a sheet-like shape with a certain gap in the middle, which can accelerate the heat dissipation effect of the bottom heat dissipation fins 2 and the upper heat dissipation fins 7.

[0086] Secondly, natural wind enters through the ventilation holes and passes through the ventilation slots, thereby taking away heat; and is then discharged through the air filter 92, so that the entire motor is transparent and heat is dissipated in a through-type manner; and the stator-rotor assembly 6 also has a cooling fan, which can also increase the wind speed when the motor is working, thereby improving the heat dissipation effect;

[0087] Finally, the motor is cooled by refrigerant cooling.

[0088] The present invention integrates natural heat dissipation, natural wind heat dissipation, fan heat dissipation and refrigerant heat dissipation, and fully considers the spatial layout and operational stability of the cooling motor, so that the various components of the cooling system can be reasonably installed in a limited space without affecting the normal operation and maintenance of other equipment; by optimizing the structure and airflow path of the cooling system and other measures, while meeting the cooling effect, the energy utilization efficiency is improved, the energy consumption is reduced, and the motor is easy to disassemble and maintain.

[0089] The working principle is as follows: during installation, the bottom heat sink 2 is installed and fixed using the installation bottom shell 1, and the cooling tubes 3 are installed in the multiple groups of heat sink fins 2, and then the multiple groups of heat sink fins 2 are clamped and fixed by the elastic bracket 4, and then a clamping piece 5 is buckled on the elastic bracket 4, and the cooling tube 3 is fixed by the clamping piece 5, so that the bottom heat sink 2, cooling tube 3, elastic bracket 4 and clamping piece 5 are assembled;

[0090] The bottom heat dissipation fins 2 are fitted and fixed to the stator-rotor assembly 6, and the top is fitted and connected to the upper heat dissipation fins 7. The stator-rotor assembly 6 is cooled by the bottom heat dissipation fins 2 and the upper heat dissipation fins 7. By reasonably optimizing the installation position and space of the bottom heat dissipation fins 2 and the upper heat dissipation fins 7, the back structure of the motor is compactly arranged to save space and facilitate overall layout optimization; the various components of the cooling system can be reasonably installed in a limited space without affecting the normal operation and maintenance of other equipment.

[0091] The rear shell 91 is slidably connected to the bracket 14 and is locked and fixed with the fixing ears 15 by bolts, thereby realizing the rapid installation of the rear shell 9 and the mounting bottom shell 1 and the top shell 8, and the shaft in the stator-rotor assembly 6 is matched and connected through the bearing support block 93; through the above arrangement, the quick disassembly effect of the cooling motor is improved, and it is convenient for daily inspection, maintenance and replacement of components.

[0092] The present invention utilizes the bottom heat dissipation fins 2 and the upper heat dissipation fins 7 to conduct heat dissipation to the stator rotor assembly 6. The bottom heat dissipation fins 2 and the upper heat dissipation fins 7 are both arranged in a sheet-like shape with a certain gap in the middle, which can accelerate the heat dissipation effect of the bottom heat dissipation fins 2 and the upper heat dissipation fins 7.

[0093] Secondly, natural wind enters through the ventilation holes and passes through the ventilation slots, thereby taking away heat; and is then discharged through the air filter 92, so that the entire motor is transparent and heat is dissipated in a through-type manner; and the stator-rotor assembly 6 also has a cooling fan, which can also increase the wind speed when the motor is working, thereby improving the heat dissipation effect;

[0094] Finally, the motor is cooled by refrigerant cooling.

[0095] The present invention integrates natural heat dissipation, natural wind heat dissipation, fan heat dissipation and refrigerant heat dissipation, and fully considers the spatial layout and operational stability of the cooling motor, so that the various components of the cooling system can be reasonably installed in a limited space without affecting the normal operation and maintenance of other equipment; by optimizing the structure and airflow path of the cooling system and other measures, while meeting the cooling effect, the energy utilization efficiency is improved, the energy consumption is reduced, and the motor is easy to disassemble and maintain.

[0096] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0097] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cooling motor for transportation equipment, characterized in that: The invention comprises a driven cooling motor (101) installed on a subway traction trolley (100), wherein the cooling motor (101) comprises a mounting bottom shell (1), wherein a bottom heat dissipation fin (2) is provided inside the mounting bottom shell (1); a stator-rotor assembly (6) is mounted above the bottom heat dissipation fin (2); an upper heat dissipation fin (7) is mounted above the stator-rotor assembly (6); and a top shell (8) is provided above the upper heat dissipation fin (7). The bottom side heat dissipation fins (2) are provided in multiple groups, gaps are reserved between the multiple groups of bottom side heat dissipation fins (2), and cooling pipes (3) are provided in the gaps; the cooling pipes (3) are cooperatively connected to the top shell (8); Elastic brackets (4) are clamped on both sides of the plurality of groups of bottom-side heat dissipation fins (2), and a clamping member (5) is clamped on each elastic bracket (4); a plurality of protrusions are provided on the upper surface of the clamping member (5) for clamping and fixing the cooling pipe (3); a rear shell (9) is also clamped on one side of the mounting bottom shell (1); The mounting bottom shell (1) comprises a bottom shell (11), the bottom of the bottom shell (11) is provided with a bolt groove (12) for facilitating bolt fixation with the subway traction trolley (100), two L-shaped brackets (13) are fixed to the inner end of the bottom shell (11), and a through groove is provided on the upper surface of the L-shaped bracket (13); A card frame (14) is fixed on the end surface of the bottom shell (11) connected to one end of the rear shell (9), and a plurality of fixing ears (15) are provided on the inner side of the card frame (14); The bottom heat dissipation fin (2) comprises a plurality of fin bodies (21), each of the fin bodies (21) having a downward arc-shaped groove in the middle, and having pressing planes (24) on both sides of the arc-shaped groove for pressing against the L-shaped bracket (13); Ventilation slots are provided on both sides of the lower end of the fin body (21), and a strip plate (22) is provided in each ventilation slot; the strip plate (22) is fixed to the bottom shell (11) by bolts; and grooves (23) are provided on both sides of the fin body (21) for facilitating the clamping and fixing of the elastic bracket (4).

2. The cooling motor for transportation equipment according to claim 1, characterized in that: The cooling pipe (3) is arranged in an arc shape along the radial direction of the stator-rotor assembly (6), and both ends are horizontal; the cooling pipe (3) is arranged in an S shape along the axial direction of the stator-rotor assembly (6); one end of the cooling pipe (3) is connected to the liquid inlet pipe (85).

3. The cooled motor for transportation equipment according to claim 1, characterized in that: The upper end of the elastic bracket (4) is clamped in the circular hole opened at the upper end of the fin body (21), and the lower end of the elastic bracket (4) is clamped in the groove (23); The bottoms of both ends of the clamping member (5) are provided with a C-shaped clamping socket, and are clamped and fixed to the upper end of the elastic bracket (4).

4. The cooled motor for transportation equipment according to claim 1, characterized in that: The top shell (8) includes an end plate (81) on which an upper shell (82) is fixed; the upper shell (82) has a cooling cavity (87) inside; the outer side of the cooling cavity (87) is connected to a liquid inlet pipe (85) and a liquid outlet pipe (86); and fixed side wings (88) are integrally provided on both sides of the upper shell (82).

5. The cooled motor for transportation equipment according to claim 4, characterized in that: The bottom of the upper shell (82) is arranged in an arc shape, and the bottom of the upper shell (82) is fitted with an upper heat dissipation fin (7); the bottom of the upper heat dissipation fin (7) has a semicircular groove and is clamped on the stator rotor assembly (6); An elastic bracket (83) is further provided at the bottom of the upper shell (82); a plurality of elastic brackets (83) are provided, and the tops of the plurality of elastic brackets (83) are connected with arc-shaped pieces, and the arc-shaped pieces are fixed to the upper shell (82) by screws.

6. The cooled motor for transportation equipment according to claim 1, characterized in that: The rear shell (9) comprises a rear casing (91), a bearing support block (93) for mounting and supporting the stator-rotor assembly (6) is provided inside the rear casing (91), and an air filter (92) is integrally provided on the outside of the rear casing (91); The rear housing (91) is slidably connected to the bracket (14), and a plurality of bolt holes are provided at the bottom of the rear housing (91), wherein bolts connected to the fixing ears (15) are provided in the bolt holes.

7. The cooled motor for transportation equipment according to claim 1, characterized in that: The cooling motor (101) is connected to the reducer (103) through a bevel gear set (102); the power output end of the reducer (103) is also connected to the traction suspension (104), and transmission wheels (105) are installed at both ends of the traction suspension (104), and the transmission wheels (105) are arranged on the track (106); The subway traction trolley (100) is provided in multiple groups, and the multiple subway traction trolleys (100) are fixed below the subway traction trolley chassis (200).

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