Cooling type motor for traffic equipment

Abstract

The invention discloses a cooling type motor for traffic equipment, and relates to the technical field of cooling motors, the cooling type motor comprises a mounting bottom shell, and bottom side heat dissipation fins are arranged in the mounting bottom shell; a stator and rotor assembly is installed above the bottom side heat dissipation fins in a matched mode. The upper heat dissipation fins are installed above the stator and rotor assembly in an attached mode. A top shell is arranged above the upper heat dissipation fins; according to the cooling system, natural heat dissipation, natural wind heat dissipation, fan heat dissipation and refrigerant heat dissipation are integrated, space layout and operation stability are fully considered for the cooling motor, all parts of the cooling system can be reasonably installed in a limited space, and meanwhile normal work and maintenance of other equipment are not affected; by optimizing the structure of the cooling system, the air flow path and other measures, on the premise that the cooling effect is met, the energy utilization efficiency is improved, the energy consumption is reduced, and the effect that the motor is convenient to disassemble and maintain is improved.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of cooling motors, and 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 and generate a lot 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, which 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 cooling motors must fully consider the space 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 needed to cool the motors, such as: directly superimposing a water cooling device or fin heat dissipation on the motor; this undoubtedly increases the installation space requirements for the motor; and the installed motor is inconvenient to disassemble and assemble, and is not convenient for daily inspection, maintenance and replacement of components. Summary of the invention

[0004] The purpose of the present invention is to provide a cooling motor for transportation equipment, wherein the relevant components need to be arranged compactly to save space and facilitate overall layout optimization; by optimizing the structure of the cooling system and the airflow path and other measures, while satisfying the cooling effect, the energy utilization efficiency is improved, the energy consumption is reduced, and the motor is easier to disassemble and maintain, so as to solve the technical problems raised in the above background technology.

[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, a bottom heat dissipation fin is arranged inside the mounting bottom shell; a stator-rotor assembly is mounted above the bottom heat dissipation fin; an upper heat dissipation fin is mounted above the stator-rotor assembly; a top shell is arranged above the upper heat dissipation fin;

[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 with the top shell;

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

[0009] As a further technical solution of the present invention, the installation bottom shell comprises a bottom shell, the bottom of the bottom shell is provided with a bolt groove for facilitating the bolts to be fixed to the subway traction trolley, two L-shaped brackets are fixed to the inner end of the bottom shell, and a through groove is provided on the upper surface of the L-shaped bracket;

[0010] A card frame is fixed on the end surface of the bottom shell body connected to one end of the rear shell body, and a plurality of fixing ears are also arranged 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, the middle of the fin body has a downward arc groove, and both sides of the arc groove are provided with a pressing plane that fits and presses 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 body 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 hole, 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 with an upper heat dissipation fin; the bottom of the upper heat dissipation fin has a semicircular groove and is clamped on the stator rotor assembly;

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

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

[0020] The rear shell is slidably connected to the card frame, and a plurality of bolt holes are opened at the bottom of the rear shell, and bolts connected to 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 the present 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. The stator-rotor assembly is cooled by the bottom heat dissipation fins and the upper heat dissipation fins. By reasonably optimizing the installation positions and spaces of the bottom heat dissipation fins and the upper heat dissipation fins, the back structure of the motor is arranged compactly 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;

[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, so that the L-shaped bracket is used to press the fin body, and at the same time, the fin body is limited in the front and back and left and right directions, so as to avoid displacement during normal use;

[0026] 3. In the present invention, the cooling pipes are arranged in an S-shape along the axial direction of the stator-rotor assembly and are spaced apart from the multiple groups of fin bodies. The fin bodies transfer the heat generated by the stator-rotor assembly. When the refrigerant enters the cooling pipes, the cooling pipes take away the heat on the fin bodies, thereby achieving the effect of 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 operating 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 diagram of the chassis structure of a subway tractor of the present invention.

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

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

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

[0033] Figure 6 The present invention Figure 3 main view.

[0034] Figure 7 The present invention Figure 6 AA section view.

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

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

[0037] Fig.10 The present invention Fig. 9 Schematic diagram from another perspective.

[0038] Fig.11 The present invention Fig. 9 Schematic diagram of part of the structure.

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

[0040] Fig.13 The present invention Fig.12 Schematic diagram of the bottom side structure.

[0041] Fig.14 The present invention Fig.13 Schematic diagram from another perspective.

[0042] Fig.15 The present invention Fig.14 Schematic diagram from another perspective.

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

[0044] Fig.17 The present invention Fig.10 A partial enlarged schematic diagram of .

[0045] Fig.18 The present invention Fig.12 A partial enlarged schematic diagram of .

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

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

[0048] 1-install bottom shell, 2-bottom side heat sink fins, 3-cooling pipe, 4-elastic bracket, 5-clip-on fittings, 6-stator-rotor assembly, 7-upper heat sink fins, 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 wing;

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

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work 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 use in transportation equipment includes a driven cooling motor 101 installed on a subway traction trolley 100. The cooling motor 101 includes a mounting bottom shell 1, and 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;

[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 with the top shell 8 in a coordinated manner;

[0056] Elastic brackets 4 are clamped on both sides of the multiple groups of bottom side heat dissipation fins 2, and a clamping piece 5 is buckled on each elastic bracket 4; a plurality of protrusions are provided on the upper surface of the clamping piece 5 for clamping and fixing the cooling tube 3; a mounting rear shell 9 is also buckled 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 by 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 the clamping piece 5 is buckled on the elastic bracket 4, and the clamping piece 5 is used to fix the cooling tube 3, so that the bottom side heat dissipation fins 2, the cooling tube 3, the elastic bracket 4 and the 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 , Fig.13 and Fig.14 In this embodiment, 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 conveniently fixing the bolts 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;

[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 heat dissipation fins 2 to prevent the bottom 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 heat dissipation fins 2 during rotation is ensured.

[0062] Please see attached Fig.17 In this embodiment, the bottom heat dissipation fin 2 includes a plurality of fin bodies 21, the fin body 21 has a downward arc groove in the middle, and a pressing plane 24 is provided on both sides of the arc groove to fit and press 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 body 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 body 11, the L-shaped bracket 13 is on the clamping plane 24, so that the L-shaped bracket 13 can be used to clamp the fin body 21, and at the same time, the fin body 21 is limited 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 body 11 by bolts, thereby increasing the fixing effect of the fin body 21 .

[0066] Please see attached Fig.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 pipe 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 pipe 3, the cooling pipe 3 takes away the heat on the fin bodies 21, thereby achieving the effect of rapid heat conduction and heat dissipation.

[0068] Please see attached Fig.11 and Fig.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 hole, and is clamped and fixed with the upper end of the elastic bracket 4.

[0070] By adopting the above technical solution, the setting of the clamping piece 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 with the fin body 21; in this way, the integrity of the clamping piece 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 attached Fig.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 outer side 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 closely connected 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 also 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, and the arc-shaped pieces are fixed to the upper shell 82 by screws.

[0074] By adopting the above technical scheme, 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; the heat dissipation fin 7 can be prevented from axial movement, thereby ensuring the stability of the motor operation.

[0075] Please see 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 outside 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 , in which bolts connected to the fixing ears 15 are provided.

[0077] As a further explanation of this embodiment, the stator-rotor assembly 6 is composed of a stator, a rotor, and a shaft, which will not be described in detail here based on the prior art; 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 it is convenient for daily inspection, maintenance and replacement of parts.

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

[0080] The subway traction trolleys 100 are provided in multiple groups, and 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, and dissipate 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 bottom shell 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 use natural wind to take away the heat, thereby accelerating the heat dissipation of the fin body 21.

[0083] In addition, a temperature probe can be installed on the bottom cooling fin 2 or the upper cooling fin 7 and connected to the PID controller. The temperature of the bottom cooling fin 2 or the upper cooling fin 7 is monitored by the temperature probe. When the natural wind is insufficient to dissipate the 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 cooling fin 2 and the upper cooling fin 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 then is discharged through the air filter 92, so that the entire motor is in a through-type transparent manner to dissipate heat; and the stator rotor assembly 6 also has a cooling fan, and when the motor is working, the cooling fan can also increase the wind speed and improve the heat dissipation effect;

[0087] Finally, refrigerant cooling is used to cool the motor.

[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 operating 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: during installation, the bottom side heat dissipation fins 2 are installed and fixed by 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 the 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 side heat dissipation fins 2, the cooling tube 3, the elastic bracket 4 and the 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 parts.

[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 then is discharged through the air filter 92, so that the entire motor is in a through-type transparent manner to dissipate heat; and the stator rotor assembly 6 also has a cooling fan, and when the motor is working, the cooling fan can also increase the wind speed and improve the heat dissipation effect;

[0094] Finally, refrigerant cooling is used to cool the motor.

[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 operating 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0097] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes 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), the cooling motor (101) comprising a mounting bottom shell (1), a bottom heat dissipation fin (2) being arranged inside the mounting bottom shell (1); a stator-rotor assembly (6) being mounted above the bottom heat dissipation fin (2); an upper heat dissipation fin (7) being mounted above the stator-rotor assembly (6); and a top shell (8) being arranged above the upper heat dissipation fin (7); The bottom side heat dissipation fins (2) are provided in a plurality of groups, gaps are reserved between the plurality of groups of bottom side heat dissipation fins (2), and cooling pipes (3) are provided in the gaps; the cooling pipes (3) are cooperatively connected with the top shell (8); The two sides of the plurality of groups of bottom side heat dissipation fins (2) are clamped with elastic brackets (4), and each elastic bracket (4) is clamped with a clamping piece (5); the upper surface of the clamping piece (5) is provided with a plurality of protruding blocks for clamping and fixing the cooling tube (3); one side of the mounting bottom shell (1) is also clamped with a mounting rear shell (9).

2. The cooling motor for transportation equipment according to claim 1, characterized in that: 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 bolts to fix the bottom shell (11) 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); 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 also provided on the inner side of the card frame (14).

3. The cooling motor for transportation equipment according to claim 1, characterized in that: 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 body (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).

4. 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).

5. The cooling 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 piece (5) are provided with a C-shaped clamping socket, and are clamped and fixed to the upper end of the elastic bracket (4).

6. The cooling motor for transportation equipment according to claim 1, characterized in that: The top shell (8) comprises an end plate (81) on which an upper shell (82) is fixed; the upper shell (82) has a cooling chamber (87) inside; the outer side of the cooling chamber (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).

7. The cooling motor for transportation equipment according to claim 6, 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 and connected 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 also provided at the bottom of the upper shell (82); a plurality of the elastic brackets (83) are provided, and arc-shaped pieces are connected to the tops of the plurality of elastic brackets (83), and the arc-shaped pieces are fixed to the upper shell (82) by screws.

8. The cooling motor for transportation equipment according to claim 1, characterized in that: The rear shell (9) comprises a rear housing (91), a bearing support block (93) for mounting and supporting the stator-rotor assembly (6) is arranged inside the rear housing (91), and an air filter (92) is integrally arranged outside the rear housing (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.

9. The cooling 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 multiple subway traction trolleys (100) are fixed below the subway traction trolley chassis (200).

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