A high power density new energy motor stator assembly and use method thereof

Abstract

The present invention relates to the field of motor stator technology, and in particular to a high-power density new energy motor stator component and a method of using the same, comprising a first bolt and a first natural heat dissipation component, wherein the first bolt is fixedly connected to a reinforcement component through the first natural heat dissipation component, the inner side of the reinforcement component is fitted with the outer side of an internal component, an iron core component is fixedly connected to the inner side of the internal component, a wire fixing component is fixedly connected to the lower end of the iron core component through a second bolt, a coil is installed on the outer side of the iron core component, and the bottom end of the reinforcement component is fixedly connected to the second natural heat dissipation component through bolts, the first natural heat dissipation component comprises a cover plate, a first reserved screw hole is provided on the inner side of the cover plate, an embedding groove is provided on the inner side of the cover plate, a heat dissipation fin is fixedly connected to the bottom end of the cover plate, and a heat dissipation fin is fixedly connected to one side of the embedding groove provided on the cover plate. In the present invention, the complexity of the cooling system is effectively reduced, and the failure rate and maintenance frequency caused by the cooling system are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of motor stators, and in particular to a high-power-density new energy motor stator assembly and a method for using the same. Background Art

[0002] High power density new energy motor stator components are key parts of new energy vehicle drive motors, which directly affect the performance and efficiency of the motor. This component is designed to achieve higher power density, that is, to provide greater output power in a smaller volume and weight, which is usually achieved by using advanced materials, optimized electromagnetic design, improved cooling technology and innovative manufacturing processes;

[0003] The motor stator is a key component of the motor, usually composed of three parts: stator core, stator winding and frame. Its main function in the motor is to generate a magnetic field, thereby providing the necessary magnetic field environment for the operation of the motor;

[0004] During the removal and repair of the motor stator winding, if looseness occurs, this will affect the high winding filling rate, and then affect the performance and efficiency of the motor. Traditional technology usually adopts a dipping and curing method to solve this problem, that is, the stator winding is immersed in insulating varnish, and it is integrated through the curing process to enhance the stability and insulation performance of the winding. However, this method has some limitations, especially in cooling. Since the contact between the stator winding and the external medium is limited after dipping, it needs to be cooled by an external medium, which increases the complexity of the cooling system. Therefore, a high power density new energy motor stator assembly and a method of using the same are proposed to address the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a high power density new energy motor stator assembly and a method of using the same, so as to solve the problem that the contact between the stator winding and the external medium is limited after dipping, which requires cooling by the external medium, thus increasing the complexity of the cooling system.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-power density new energy motor stator assembly and a method of using the same, comprising a first bolt and a first natural heat dissipation assembly, wherein the first bolt is fixedly connected to a reinforcement assembly through the first natural heat dissipation assembly, the inner side of the reinforcement assembly is fitted with the outer side of an internal assembly, the inner side of the internal assembly is fixedly connected to an iron core assembly, the lower end of the iron core assembly is fixedly connected to a fixed wire assembly through a second bolt, a coil is installed on the outer side of the iron core assembly, the bottom end of the reinforcement assembly is fixedly connected to a second natural heat dissipation assembly through a bolt, and the first natural heat dissipation assembly comprises a cover The cover plate has a first reserved screw hole on the inner side, an embedded groove on the inner side, a heat sink fin is fixedly connected to the bottom end of the cover plate, a heat sink fin is fixedly connected to one side of the embedded groove on the cover plate, an air storage tank is provided on the inner side of the heat sink fin, the internal assembly includes a stator shell, a dovetail groove is provided on the inner side of the stator shell, a third reserved screw hole is provided on the inner side of the stator shell, a double through hole is provided on the inner side of the stator shell, the inner side of the third reserved screw hole on the stator shell is spirally fitted with the outer side of the third bolt, and the core assembly It includes an additional block, a fourth reserved screw hole is provided on the inner side of one end of the additional block, a winding iron core is fixedly connected to one side of the additional block, a side plate is fixedly connected to one side of the winding iron core, a slow flow channel is provided on the inner side of the additional block, a heat collecting groove is provided on the inner side of the winding iron core, a heat inlet is provided on the inner side of the winding iron core, an aluminum alloy inclined plate is fixedly connected to the outer side of the winding iron core, a wire pasting hole is provided on the inner side of the aluminum alloy inclined plate, the wire fixing assembly includes a wire fixing seat, a fifth reserved screw hole is provided on the inner side of the wire fixing seat, and multiple channels are provided on the inner side of the wire fixing seat The multi-way groove provided on the wire fixing seat is rotatably connected with a double-threaded rod on the inner side, and a wire fixing mechanism is spirally connected to the outer side of the double-threaded rod. A square wire groove is provided at one end of the wire fixing seat, and a first rubber pressing piece is fixedly connected to one side of the square wire groove provided on the wire fixing seat. The cover plate is fixed to the second reserved screw hole provided on the reinforced shell by a first bolt, the inner side of the reinforced shell is fitted with the outer side of the stator shell, the inner side of the stator shell is fixedly connected to the fourth reserved screw hole provided on the mounting block by a third bolt, and the bottom end of the mounting block is fixedly connected to the wire fixing seat by a second bolt.

[0008] As further optimized content of the present invention, the line fixing mechanism includes a clamping block, one side of the clamping block is fixedly connected to a ladder block, the inner side of the rear end of the clamping block is provided with an internal threaded hole, the inner side of the front end of the clamping block is provided with a spring groove, one side of the spring groove provided by the clamping block is fixedly connected to a buffer spring, one end of the buffer spring is fixedly connected to a double column rod, and one side of the double column rod is fixedly connected to a second rubber pressure sheet.

[0009] As further optimized content of the present invention, the structure of the first natural heat dissipation component is the same as the structure of the second natural heat dissipation component, the cover plate is in the shape of a circular ring, the first reserved screw holes pass through the inner side of the cover plate, and the number of the first reserved screw holes corresponds one-to-one to the number of the first bolts.

[0010] As further optimized content of the present invention, the embedded groove passes through the upper part of the cover plate, the opening shape of the embedded groove is a circular ring, the top of the heat dissipation fin is flush with the top of the cover plate, the heat dissipation fin is located inside the embedded groove, the air storage tank passes through the bottom end of the heat dissipation fin, the bottom end of the cover plate is fixedly connected with a second sealing ring, the bottom end of the first sealing ring is fitted with the top end of the stator shell, and the air storage tank is connected to the dovetail groove.

[0011] As further optimized content of the present invention, the reinforcement component includes a reinforcement shell, a second reserved screw hole is opened on the inner side of the reinforcement shell, a rectangular body limiting groove is opened on the inner side of the reinforcement shell, the reinforcement shell is shaped like a hollow cylinder, the second reserved screw hole is opened through the upper and lower ends of the reinforcement shell, the rectangular body limiting groove passes through the inner side of the reinforcement shell, the third bolt is installed on the inner side of the rectangular body limiting groove opened in the reinforcement shell, the outer side of the third bolt is fitted with the inner side of the rectangular body limiting groove opened in the reinforcement shell, and the bottom end of the second sealing ring is fitted with the top end of the reinforcement shell.

[0012] As a further optimization content of the present invention, the dovetail groove passes through the inner side of the stator shell, the opening shape of the dovetail groove is a trapezoid, one end of the mounting block is installed on the inner side of the dovetail groove opened in the stator shell, the position of the third reserved screw hole corresponds one-to-one with the position of the fourth reserved screw hole, and the double through hole is connected to the dovetail groove.

[0013] As a further optimization content of the present invention, the position of the double through holes opened in the stator case is aligned with the position of the slow flow channel starting from the mounting block, a third sealing ring is fixedly connected to one side of the double through holes opened in the stator case, one side of the third sealing ring is fitted with one side of the slow flow channel opened in the mounting block, the double through holes are connected with the slow flow channel, and the number of the double through holes corresponds one to one to the number of the slow flow channel.

[0014] As further optimized content of the present invention, the shape of one end of the mounting block is a dovetail body, the slow flow channel runs through the inner side of the mounting block, the slow flow channel is connected with the heat collecting trough, the heat collecting trough is connected with the heat inlet, the heat inlet is connected with the wire bonding hole, the aluminum alloy inclined plate is an inclined structure, the outer side of the aluminum alloy inclined plate is fitted with the outer side of the coil, the coil is installed between the side plate and the mounting block, and the coil is wound around the outer side of the winding core.

[0015] As further optimized content of the present invention, the top of the wire fixing seat is fitted with the bottom end of the mounting block and the bottom end of the side plate, the wire fixing seat is fixed to the side plate by a second bolt, the double-threaded rod is embedded in the inner side of the wire fixing seat, the square wire groove passes through one end of the wire fixing seat, one end of the coil is inside the square wire groove, the double-threaded rod is spirally connected to the inner side of the internal threaded hole opened in the clamping block, the ladder block is slidably connected to the inner side of the multi-through groove opened in the wire fixing seat, and one side of the second rubber pressing sheet is fitted with one end of the coil.

[0016] A method for using a high power density new energy motor stator assembly,

[0017] S1: When cooling the motor stator without using external media, heat enters the heat inlet from the inside of the wire hole, and enters the inside of the heat collecting tank from the heat inlet. Heat is accumulated inside the heat collecting tank opened by the winding core, and the hot gas inside the heat collecting tank opened by the winding core flows along the slow flow channel opened by the mounting block, and flows from the slow flow channel into the inside of the double through holes opened by the stator shell. Under the sealing action of the third sealing ring, the gas enters from the double through holes into the inside of the rectangular limiting groove opened by the reinforced shell, and a certain distance is set between the end of the third bolt and the rectangular limiting groove opened by the reinforced shell. At this time, a sealed space is formed between the bottom end of the cover plate and the top ends of the reinforced shell and the stator shell. The gas inside the gas storage tank will flow in the opposite direction from another slow flow channel into the inside of the winding core and the aluminum alloy inclined plate, so as to achieve the purpose of cooling the winding core and the aluminum alloy inclined plate, and then the heat inside the gas storage tank is dissipated through the heat dissipation fins.

[0018] S2: When replacing and repairing the coil, the first natural heat dissipation component and the second natural heat dissipation component can be separated from the reinforcement component by disassembling the two sets of first bolts, and the reinforcement shell is directly taken out from the outside of the stator shell. The third bolt is disassembled to separate the stator shell from the mounting block, and one end of the mounting block is slid out of the dovetail groove of the stator shell. At this time, the second bolt is disassembled to separate the coil from the wire fixing mechanism.

[0019] S3: When installing the coil to avoid looseness, each section of the coil is wound between the outer side of the winding core and the aluminum alloy inclined plate, and the wire end of one end of the coil is placed inside the square wire groove. Before that, the block, the winding core and the wire fixing seat are fixed together. By rotating the double-threaded rod, the wire fixing mechanism is driven to move when the double-threaded rod rotates. The wire fixing mechanism is slidably connected to the inner side of the multi-through grooves opened in the wire fixing seat. The two wire fixing mechanisms move in opposite directions respectively, and the wire fixing mechanisms clamp the coil;

[0020] S4: When fixing the coil to prevent damage to the outside of the coil, the second rubber pressing sheet will gradually approach the direction of the coil. When one side of the second rubber pressing sheet is in close contact with the outside of the coil, the second rubber pressing sheet will push the double-column rod to move. The double-column rod slides on the inner side of the spring fixing groove opened in the clamping block. The double-column rod squeezes the buffer spring, and the coil is fixed with the cooperation of the second rubber pressing sheet and the first rubber pressing sheet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, by providing the wire attachment hole, the heat inlet, the heat collecting groove and the first natural heat dissipation component, the gas flow inside the device and the thermal expansion and contraction effect realize a self-circulating cooling method that does not rely on the external medium. This method reduces the complexity of the cooling system, effectively solves the problem that the heat is difficult to flow due to the winding of the traditional winding, and reduces the failure rate and maintenance frequency;

[0023] 2. In the present invention, by providing the stator housing, the second bolt, the rectangular body limit groove and the third bolt, the device facilitates access to the internal structure of the winding, provides convenience for maintenance personnel, makes the removal and repair of the winding easier, avoids the removal and replacement problems caused by the integrated structure, and significantly reduces the difficulty of coil removal;

[0024] 3. In the present invention, by providing a double threaded rod and a wire fixing mechanism, when installing the coil, the coil is clamped by the wire fixing mechanism, thereby fixing the coil end, effectively preventing the winding from loosening, and ensuring the stability of the motor stator winding and the consistency of the motor performance;

[0025] 4. In the present invention, by providing the second rubber pressing sheet, the first rubber pressing sheet, the double column rod and the buffer spring, the device achieves buffering and protection of the coil, prevents damage to the outside of the winding during the fixing process, and at the same time improves the fixing stability, ensuring the long-term reliability of the motor stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the second natural heat dissipation component of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the first natural heat dissipation component of the present invention;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the structure at A;

[0030] Figure 5 This is a schematic diagram of the structure of the internal components of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the reinforcement assembly of the present invention;

[0032] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B;

[0033] Figure 8 It is a schematic diagram of the coil structure of the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the core assembly of the present invention;

[0035] Fig.10 It is a schematic diagram of the cutaway structure of the wire holder of the present invention;

[0036] Fig.11 It is a schematic diagram of the cutaway structure of the clamping block of the present invention;

[0037] Fig.12 It is a schematic diagram of the cutaway structure of the mounting block of the present invention;

[0038] Fig.13 It is a schematic diagram of the cutaway structure of the winding core of the present invention;

[0039] Fig.14 For the present invention Fig.13 Schematic diagram of the structure at C.

[0040] In the figure: 1. first bolt;

[0041] 2. First natural heat dissipation component; 21. Cover plate; 22. First reserved screw hole; 23. Embedded groove; 24. First sealing ring; 25. Heat dissipation fins; 26. Air storage tank; 27. Second sealing ring;

[0042] 3. Strengthening assembly; 31. Strengthening housing; 32. Second reserved screw hole; 33. Rectangular body limiting groove;

[0043] 4. Internal components; 41. Stator housing; 42. Dovetail groove; 43. Third reserved screw hole; 44. Double through hole; 45. Third bolt; 46. Third sealing ring;

[0044] 5. Iron core assembly; 51. Mounting block; 52. Fourth reserved screw hole; 53. Winding iron core; 54. Side plate; 55. Slow flow channel; 56. Heat collecting trough; 57. Heat inlet; 58. Aluminum alloy inclined plate; 59. Wire attaching hole;

[0045] 6. Wire fixing assembly; 61. Wire fixing seat; 62. Fifth reserved screw hole; 63. Multi-through slot; 64. Double threaded rod; 65. Wire fixing mechanism; 651. Clamping block; 652. Ladder block; 653. Internal threaded hole; 654. Spring fixing slot; 655. Buffer spring; 656. Double column rod; 657. Second rubber pressing sheet; 66. Square wire slot; 67. First rubber pressing sheet;

[0046] 7. The second bolt; 8. The coil; 9. The second natural heat dissipation component. DETAILED DESCRIPTION

[0047] 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.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] See also Figure 1-14 , the present invention provides a technical solution:

[0050] A high-power density new energy motor stator component and a method of using the same, comprising a first bolt 1 and a first natural heat dissipation component 2, wherein the first bolt 1 is fixedly connected to a reinforcement component 3 through the first natural heat dissipation component 2, wherein the inner side of the reinforcement component 3 is fitted with the outer side of an internal component 4, wherein an iron core component 5 is fixedly connected to the inner side of the internal component 4, wherein the lower end of the iron core component 5 is fixedly connected to a fixed wire component 6 through a second bolt 7, wherein a coil 8 is installed on the outer side of the iron core component 5, wherein the bottom end of the reinforcement component 3 is fixedly connected to a second natural heat dissipation component 9 through a bolt, wherein the first natural heat dissipation component 2 comprises a cover plate 21, wherein the inner side of the cover plate 21 is provided with a first pre- A screw hole 22 is reserved, an embedded groove 23 is opened on the inner side of the cover plate 21, a heat sink fin 25 is fixedly connected to the bottom end of the cover plate 21, a heat sink fin 25 is fixedly connected to one side of the embedded groove 23 opened on the cover plate 21, and an air storage tank 26 is opened on the inner side of the heat sink fin 25. The internal assembly 4 includes a stator shell 41, a dovetail groove 42 is opened on the inner side of the stator shell 41, a third reserved screw hole 43 is opened on the inner side of the stator shell 41, a double through hole 44 is opened on the inner side of the stator shell 41, and the inner side of the third reserved screw hole 43 opened in the stator shell 41 is spirally fitted with the outer side of the third bolt 45, and the core assembly 5 includes an additional block 51, and the additional block 5 A fourth reserved screw hole 52 is provided on the inner side of one end of the mounting block 51, a winding core 53 is fixedly connected to one side of the mounting block 51, a side plate 54 is fixedly connected to one side of the winding core 53, a slow flow channel 55 is provided on the inner side of the mounting block 51, a heat collecting groove 56 is provided on the inner side of the winding core 53, a heat inlet 57 is provided on the inner side of the winding core 53, an aluminum alloy inclined plate 58 is fixedly connected to the outer side of the winding core 53, a wire attaching hole 59 is provided on the inner side of the aluminum alloy inclined plate 58, and the wire fixing assembly 6 includes a wire fixing seat 61, a fifth reserved screw hole 62 is provided on the inner side of the wire fixing seat 61, a multi-through groove 63 is provided on the inner side of the wire fixing seat 61, and a wire fixing seat 61 is provided A double-threaded rod 64 is rotatably connected to the inner side of the multi-through groove 63, and a wire fixing mechanism 65 is spirally connected to the outer side of the double-threaded rod 64. A square wire groove 66 is provided at one end of the wire fixing seat 61, and a first rubber pressing piece 67 is fixedly connected to one side of the square wire groove 66 provided in the wire fixing seat 61. The cover plate 21 is fixed to the second reserved screw hole 32 provided in the reinforced shell 31 by the first bolt 1, and the inner side of the reinforced shell 31 is fitted with the outer side of the stator shell 41. The inner side of the stator shell 41 is fixedly connected to the fourth reserved screw hole 52 provided in the mounting block 51 by the third bolt 45, and the bottom end of the mounting block 51 is fixedly connected to the wire fixing seat 61 by the second bolt 7.

[0051] As a further implementation of the present scheme, the wire fixing mechanism 65 includes a clamping block 651, one side of the clamping block 651 is fixedly connected to a ladder block 652, an inner threaded hole 653 is provided on the inner side of the rear end of the clamping block 651, a spring groove 654 is provided on the inner side of the front end of the clamping block 651, one side of the spring groove 654 provided by the clamping block 651 is fixedly connected to a buffer spring 655, one end of the buffer spring 655 is fixedly connected to a double column rod 656, and one side of the double column rod 656 is fixedly connected to a second rubber pressing sheet 657, providing a stable connection and buffer system, reducing damage to the coil 8 during the fixing process;

[0052] As a further implementation scheme of the present scheme, the structure of the first natural heat dissipation component 2 is the same as that of the second natural heat dissipation component 9, the cover plate 21 is in the shape of a circular ring, the first reserved screw hole 22 passes through the inner side of the cover plate 21, the number of the first reserved screw holes 22 corresponds one to one with the number of the first bolts 1, the embedding groove 23 passes through the upper part of the cover plate 21, the opening shape of the embedding groove 23 is a circular ring, the top of the heat dissipation fin 25 is flush with the top of the cover plate 21, the heat dissipation fin 25 is located inside the embedding groove 23, the air storage tank 26 passes through the bottom end of the heat dissipation fin 25, the bottom end of the cover plate 21 is fixedly connected with the second sealing ring 27, the bottom end of the first sealing ring 24 is fitted with the top of the stator shell 41, the air storage tank 26 is connected with the dovetail groove 42, the heat dissipation efficiency is improved, the design that the top of the heat dissipation fin 25 is flush with the top of the cover plate 21 ensures the continuity of the gas flow, and the connectivity between the air storage tank 26 and the dovetail groove 42 further improves the effect of the heat dissipation system;

[0053] As a further implementation of the present scheme, the reinforcement component 3 includes a reinforcement shell 31, a second reserved screw hole 32 is provided on the inner side of the reinforcement shell 31, a rectangular body limiting groove 33 is provided on the inner side of the reinforcement shell 31, the reinforcement shell 31 is in the shape of a hollow cylindrical body, the second reserved screw hole 32 is provided through the upper and lower ends of the reinforcement shell 31, the rectangular body limiting groove 33 is provided through the inner side of the reinforcement shell 31, the third bolt 45 is installed on the inner side of the rectangular body limiting groove 33 provided in the reinforcement shell 31, the outer side of the third bolt 45 is fitted with the inner side of the rectangular body limiting groove 33 provided in the reinforcement shell 31, and the bottom end of the second sealing ring 27 is fitted with the top end of the reinforcement shell 31, thereby ensuring the precise positioning and sealing of the components, preventing gas leakage, and enhancing the overall performance of the cooling system;

[0054] As a further implementation of the present scheme, the dovetail groove 42 passes through the inner side of the stator shell 41, and the opening shape of the dovetail groove 42 is a trapezoidal body. One end of the mounting block 51 is installed on the inner side of the dovetail groove 42 opened in the stator shell 41. The position of the third reserved screw hole 43 corresponds to the position of the fourth reserved screw hole 52 one by one. The double through hole 44 is connected to the dovetail groove 42. The position of the double through hole 44 opened in the stator shell 41 is aligned with the position of the slow flow channel 55 starting from the mounting block 51. One side of the double through hole 44 opened in the stator shell 41 is fixedly connected with a third sealing ring 46. One side of the third sealing ring 46 is fitted with one side of the slow flow channel 55 opened in the mounting block 51. The double through hole 44 is connected to the slow flow channel 55. The number of the double through holes 44 corresponds to the number of the slow flow channel 55 one by one, which provides precise component positioning and connection, helps to improve the efficiency of heat dissipation and fixing components, and ensures the uniformity and efficiency of gas flow in the heat dissipation system.

[0055] As a further implementation of the present scheme, one end of the mounting block 51 is shaped as a dovetail body, a slow flow channel 55 runs through the inner side of the mounting block 51, the slow flow channel 55 is connected to the heat collecting groove 56, the heat collecting groove 56 is connected to the heat inlet 57, the heat inlet 57 is connected to the wire attaching hole 59, the aluminum alloy inclined plate 58 is an inclined structure, the outer side of the aluminum alloy inclined plate 58 is attached to the outer side of the coil 8, the coil 8 is installed between the side plate 54 and the mounting block 51, and the coil 8 is wound around the outer side of the winding core 53, which improves the matching accuracy and sealing performance between the components, helps to improve the heat dissipation efficiency and protect the coil 8 from damage;

[0056] As a further implementation scheme of the present scheme, the top of the wire fixing seat 61 is fitted with the bottom end of the mounting block 51 and the bottom end of the side plate 54, the wire fixing seat 61 is fixed to the side plate 54 by the second bolt 7, the double-threaded rod 64 is embedded in the inner side of the wire fixing seat 61, the square wire groove 66 passes through one end of the wire fixing seat 61, one end of the coil 8 is inside the square wire groove 66, the double-threaded rod 64 is spirally connected to the inner side of the internal threaded hole 653 opened in the clamping block 651, the ladder block 652 is slidably connected to the inner side of the multi-through groove 63 opened in the wire fixing seat 61, and one side of the second rubber pressing sheet 657 is fitted with one end of the coil 8, providing a flexible adjustment mechanism to adapt to the fixing requirements of different situations, ensuring the stability of the end of the coil 8, and preventing the occurrence of loose windings.

[0057] Working process: When the motor stator is cooled without using an external medium, the winding heats up and the core loses during the operation of the device. The higher the resistance of the winding, the more heat energy is generated. The stator core will produce iron loss in the alternating magnetic field, including hysteresis loss and eddy current loss. These losses are eventually converted into heat energy, that is, the coil 8 and the core assembly 5 need to be cooled. When the coil 8 heats up, the coil 8 is wound around the outside of the winding core 53, and the outside of the aluminum alloy inclined plate 58 is separated from the outside of the coil 8 by a small distance. The material of the aluminum alloy inclined plate 58 is aluminum alloy. The aluminum alloy inclined plate 58 The material is not mixed with magnetic impurities such as iron, nickel, and cobalt, and the aluminum alloy inclined plate 58 will not interfere with the magnetic force. After the coil 8 generates heat, the heat enters the heat inlet 57 from the inside of the wire-attaching hole 59, and enters the inside of the heat collecting tank 56 from the heat inlet 57, which solves the problem that the heat of the traditional coil 8 is difficult to flow out from between the coils 8 due to winding. At this time, the inside of the heat collecting tank 56 opened in the winding iron core 53 will accumulate heat. Due to the effect of thermal expansion and contraction of the gas, the hot gas inside the heat collecting tank 56 opened in the winding iron core 53 will flow along the inside of the slow flow channel 55 opened in the mounting block 51, and the heat will be discharged from the slow flow channel 55. The inside of the double through hole 44 opened in the stator shell 41 can be prevented from overflowing from between the stator shell 41 and the mounting block 51 under the sealing effect of the third sealing ring 46. At this time, the gas enters the inside of the rectangular limiting groove 33 opened in the reinforced shell 31 from the double through hole 44. A certain distance is set between the end of the third bolt 45 and the rectangular limiting groove 33 opened in the reinforced shell 31 to facilitate gas circulation. Under the sealing effect of the second sealing ring 27 and the first sealing ring 24, a sealed space is formed between the bottom end of the cover plate 21 and the top end of the reinforced shell 31 and the stator shell 41 to prevent the gas from overflowing. Prevent external impurities from entering the heat collecting tank 56. At this time, the gas inside the gas storage tank 26 is relatively colder than the gas inside the rectangular limiting tank 33. At this time, in order to balance the air pressure, the gas inside the gas storage tank 26 will flow into the winding core 53 and the aluminum alloy inclined plate 58 from another slow flow channel 55 in the opposite direction, so as to achieve the purpose of cooling the winding core 53 and the aluminum alloy inclined plate 58, and then dissipate the heat inside the gas storage tank 26 through the heat dissipation fins 25, so as to achieve the purpose of circulating heat dissipation, realize the work of heat dissipation without using external medium, reduce the complexity of the cooling system, and reduce the failure rate and maintenance frequency;

[0058] When the coil 8 is replaced and repaired, the first natural heat dissipation component 2 and the second natural heat dissipation component 9 can be separated from the reinforcement component 3 by disassembling the two groups of first bolts 1. At this time, the reinforcement shell 31 can be directly taken out from the outside of the stator shell 41. The rectangular limiting groove 33 and the third bolt 45 provided in the reinforcement shell 31 play a role in limiting the position between the stator shell 41 and the reinforcement shell 31 to prevent the stator shell 41 and the reinforcement shell 31 from rotating. The third bolt 45 is disassembled to separate the stator shell 41 from the additional block 51, and one end of the additional block 51 is slid out of the dovetail groove 42 provided in the stator shell 41. At this time, the second bolt 7 is disassembled to separate the coil 8 from the wire fixing mechanism 65. At this time, the coil 8 can be replaced and repaired. The device avoids an integrated structure, improves the replacement efficiency of the coil 8 and reduces the difficulty of replacement.

[0059] When installing the coil 8 to avoid looseness, each section of the coil 8 is wound between the outer side of the winding core 53 and the aluminum alloy inclined plate 58. After the winding is completed, the wire end of one end of the coil 8 is placed on the inner side of the square wire groove 66. Before this, the block 51, the winding core 53 and the wire fixing seat 61 are fixed as one. By rotating the double-threaded rod 64, two sections of opposite threads are arranged on the outer side of the double-threaded rod 64. When the double-threaded rod 64 rotates, the wire fixing mechanism 65 is driven to move. The wire fixing mechanism 65 is slidably connected to the inner side of the multi-channel groove 63 provided on the wire fixing seat 61. According to the shape of the threads of the double-threaded rod 64, the two wire fixing mechanisms 65 move in opposite directions respectively. One end of the multi-channel groove 63 is connected to the square wire groove 66. At this time, the coil 8 is clamped by the wire fixing mechanism 65, so as to fix the end of the coil 8 and prevent the coil 8 from loosening.

[0060] In order to prevent damage to the outside of the coil 8 when fixing the coil 8, based on the above principle, when the wire fixing mechanism 65 moves, the second rubber pressing sheet 657 will gradually approach the direction of the coil 8. When one side of the second rubber pressing sheet 657 is in close contact with the outside of the coil 8, the second rubber pressing sheet 657 will push the double-column rod 656 to move. The double-column rod 656 slides on the inner side of the spring fixing groove 654 opened in the clamping block 651. The double-column rod 656 squeezes the buffer spring 655, and the buffer spring 655 is deformed. The buffer spring 655 plays a role of buffering when the coil 8 is fixed. At the same time, with the cooperation of the second rubber pressing sheet 657 and the first rubber pressing sheet 67, the second rubber pressing sheet 657 and the first rubber pressing sheet 67 will be deformed, which can prevent damage to the outside of the coil 8 and improve the stability of the fixation of the coil 8.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high power density new energy motor stator assembly, comprising a first bolt (1) and a first natural heat dissipation assembly (2), characterized in that: The first bolt (1) is fixedly connected to a reinforcement component (3) via a first natural heat dissipation component (2); the inner side of the reinforcement component (3) is in contact with the outer side of an internal component (4); the inner side of the internal component (4) is fixedly connected to an iron core component (5); the lower end of the iron core component (5) is fixedly connected to a wire fixing component (6) via a second bolt (7); a coil (8) is installed on the outer side of the iron core component (5); and the bottom end of the reinforcement component (3) is fixedly connected to a second natural heat dissipation component (9) via a bolt; The first natural heat dissipation component (2) comprises a cover plate (21), a first reserved screw hole (22) is provided on the inner side of the cover plate (21), an embedding groove (23) is provided on the inner side of the cover plate (21), a heat dissipation fin (25) is fixedly connected to the bottom end of the cover plate (21), a heat dissipation fin (25) is fixedly connected to one side of the embedding groove (23) provided on the cover plate (21), an air storage tank (26) is provided on the inner side of the heat dissipation fin (25), and the internal component (4) comprises a stator shell (41). The stator shell (41) has a dovetail groove (42) formed on the inner side thereof, a third reserved screw hole (43) formed on the inner side thereof, a double through hole (44) formed on the inner side thereof, the inner side of the third reserved screw hole (43) formed on the stator shell (41) being spirally fitted with the outer side of the third bolt (45), the core assembly (5) comprising an additional block (51), the inner side of one end of the additional block (51) having a fourth reserved screw hole (52), and one side of the additional block (51) being fixed A winding iron core (53) is connected, one side of the winding iron core (53) is fixedly connected to a side plate (54), a slow flow channel (55) is provided on the inner side of the mounting block (51), a heat collecting groove (56) is provided on the inner side of the winding iron core (53), a heat inlet (57) is provided on the inner side of the winding iron core (53), an aluminum alloy inclined plate (58) is fixedly connected to the outer side of the winding iron core (53), and a wire attaching hole (59) is provided on the inner side of the aluminum alloy inclined plate (58), and the wire fixing assembly (6) includes a wire fixing seat ( 61), a fifth reserved screw hole (62) is provided on the inner side of the wire fixing seat (61), a multi-through groove (63) is provided on the inner side of the wire fixing seat (61), a double-threaded rod (64) is rotatably connected to the inner side of the multi-through groove (63) provided on the wire fixing seat (61), a wire fixing mechanism (65) is spirally connected to the outer side of the double-threaded rod (64), a square wire groove (66) is provided on one end of the wire fixing seat (61), and a first rubber pressing sheet (67) is fixedly connected to one side of the square wire groove (66) provided on the wire fixing seat (61); The cover plate (21) is fixed to a second reserved screw hole (32) provided in the reinforced housing (31) by means of a first bolt (1); the inner side of the reinforced housing (31) is fitted to the outer side of the stator housing (41); the inner side of the stator housing (41) is fixedly connected to a fourth reserved screw hole (52) provided in the mounting block (51) by means of a third bolt (45); and the bottom end of the mounting block (51) is fixedly connected to the wire fixing seat (61) by means of a second bolt (7).

2. A high power density new energy motor stator assembly according to claim 1, characterized in that: The line fixing mechanism (65) comprises a clamping block (651), one side of the clamping block (651) is fixedly connected to a ladder block (652), an inner threaded hole (653) is provided on the inner side of the rear end of the clamping block (651), a spring fixing groove (654) is provided on the inner side of the front end of the clamping block (651), one side of the spring fixing groove (654) provided in the clamping block (651) is fixedly connected to a buffer spring (655), one end of the buffer spring (655) is fixedly connected to a double column rod (656), and one side of the double column rod (656) is fixedly connected to a second rubber pressing sheet (657).

3. The high power density new energy motor stator assembly according to claim 1, characterized in that: The structure of the first natural heat dissipation component (2) is the same as that of the second natural heat dissipation component (9); the cover plate (21) is in the shape of a circular ring; the first reserved screw holes (22) penetrate the inner side of the cover plate (21); and the number of the first reserved screw holes (22) corresponds one-to-one to the number of the first bolts (1).

4. The high power density new energy motor stator assembly according to claim 1, characterized in that: The embedding groove (23) passes through the upper part of the cover plate (21); the opening shape of the embedding groove (23) is a circular ring; the top of the heat dissipation fin (25) is flush with the top of the cover plate (21); the heat dissipation fin (25) is located inside the embedding groove (23); the air storage groove (26) passes through the bottom end of the heat dissipation fin (25); the bottom end of the cover plate (21) is fixedly connected to a second sealing ring (27); the bottom end of the first sealing ring (24) is in contact with the top end of the stator housing (41); and the air storage groove (26) is connected to the dovetail groove (42).

5. The high power density new energy motor stator assembly according to claim 4, characterized in that: The reinforcement assembly (3) comprises a reinforcement shell (31), a second reserved screw hole (32) is provided on the inner side of the reinforcement shell (31), a rectangular limiting groove (33) is provided on the inner side of the reinforcement shell (31), the reinforcement shell (31) is in the shape of a hollow column, the second reserved screw hole (32) is provided through the upper end and the lower end of the reinforcement shell (31), the rectangular limiting groove (33) passes through the inner side of the reinforcement shell (31), the third bolt (45) is installed on the inner side of the rectangular limiting groove (33) provided on the reinforcement shell (31), the outer side of the third bolt (45) is in contact with the inner side of the rectangular limiting groove (33) provided on the reinforcement shell (31), and the bottom end of the second sealing ring (27) is in contact with the top end of the reinforcement shell (31).

6. The high power density new energy motor stator assembly according to claim 1, characterized in that: The dovetail groove (42) passes through the inner side of the stator housing (41); the opening shape of the dovetail groove (42) is a trapezoid; one end of the mounting block (51) is mounted on the inner side of the dovetail groove (42) opened in the stator housing (41); the position of the third reserved screw hole (43) corresponds to the position of the fourth reserved screw hole (52); and the double through hole (44) is in communication with the dovetail groove (42).

7. The high power density new energy motor stator assembly according to claim 1, characterized in that: The position of the double through holes (44) provided in the stator housing (41) is aligned with the position of the slow flow passage (55) starting from the mounting block (51); a third sealing ring (46) is fixedly connected to one side of the double through holes (44) provided in the stator housing (41); one side of the third sealing ring (46) is in contact with one side of the slow flow passage (55) provided in the mounting block (51); the double through holes (44) are connected to the slow flow passage (55); and the number of the double through holes (44) corresponds to the number of the slow flow passages (55).

8. The high power density new energy motor stator assembly according to claim 1, characterized in that: One end of the mounting block (51) is shaped as a dovetail body, the slow flow channel (55) passes through the inner side of the mounting block (51), the slow flow channel (55) is connected to the heat collecting groove (56), the heat collecting groove (56) is connected to the heat inlet (57), the heat inlet (57) is connected to the wire pasting hole (59), the aluminum alloy inclined plate (58) is an inclined structure, the outer side of the aluminum alloy inclined plate (58) is in contact with the outer side of the coil (8), the coil (8) is installed between the side plate (54) and the mounting block (51), and the coil (8) is wound around the outer side of the winding core (53).

9. The high power density new energy motor stator assembly according to claim 2, characterized in that: The top of the wire fixing seat (61) is fitted with the bottom of the mounting block (51) and the bottom of the side plate (54); the wire fixing seat (61) is fixed to the side plate (54) by a second bolt (7); the double-threaded rod (64) is embedded in the inner side of the wire fixing seat (61); the square wire groove (66) passes through one end of the wire fixing seat (61); one end of the coil (8) is located inside the square wire groove (66); the double-threaded rod (64) is spirally connected to the inner side of the internal threaded hole (653) provided in the clamping block (651); the ladder block (652) is slidably connected to the inner side of the multi-through groove (63) provided in the wire fixing seat (61); and one side of the second rubber pressing sheet (657) is fitted with one end of the coil (8).

10. A method for using a high power density new energy motor stator assembly according to any one of claims 1 to 9, characterized in that: S1: When the motor stator is cooled without using an external medium, heat enters the heat inlet (57) from the inside of the wire attachment hole (59), and enters the inside of the heat collecting groove (56) from the heat inlet (57). The inside of the heat collecting groove (56) opened in the winding iron core (53) will accumulate heat. The hot gas inside the heat collecting groove (56) opened in the winding iron core (53) will flow along the inside of the slow flow channel (55) opened in the mounting block (51), and flow from the slow flow channel (55) into the inside of the double through holes (44) opened in the stator shell (41). Under the sealing effect of the third sealing ring (46), the gas enters the reinforced shell (41) from the double through holes (44). A certain distance is set between the end of the third bolt (45) and the rectangular limiting groove (33) opened in the reinforced housing (31), and a sealed space is formed between the bottom end of the cover plate (21) and the top ends of the reinforced housing (31) and the stator shell (41). The gas in the gas storage tank (26) will flow in the opposite direction from another slow flow channel (55) into the inside of the winding core (53) and the aluminum alloy inclined plate (58), thereby cooling the winding core (53) and the aluminum alloy inclined plate (58), and then dissipating the heat in the gas storage tank (26) through the heat dissipation fins (25); S2: When replacing and repairing the coil (8), the first natural heat dissipation component (2) and the second natural heat dissipation component (9) can be separated from the reinforcement component (3) by disassembling the two sets of first bolts (1), and the reinforcement shell (31) is directly taken out from the outside of the stator shell (41). The third bolt (45) is disassembled to separate the stator shell (41) from the mounting block (51), and one end of the mounting block (51) is slid out of the dovetail groove (42) provided in the stator shell (41). At this time, the second bolt (7) is disassembled to separate the coil (8) from the wire fixing mechanism (65); S3: When installing the coil (8) to avoid looseness, each section of the coil (8) is wound between the outer side of the winding core (53) and the aluminum alloy inclined plate (58), and the wire end of one end of the coil (8) is placed on the inner side of the square wire groove (66). Before this, the mounting block (51), the winding core (53) and the wire fixing seat (61) are fixed as one body, and the double-threaded rod (64) is rotated to drive the wire fixing mechanism (65) to move when the double-threaded rod (64) rotates. The wire fixing mechanism (65) is slidably connected to the inner side of the multi-through groove (63) provided in the wire fixing seat (61). The two wire fixing mechanisms (65) move in opposite directions respectively, and the wire fixing mechanism (65) clamps the coil (8); S4: When the coil (8) is fixed to prevent damage to the outside of the coil (8), the second rubber pressing sheet (657) gradually approaches the direction of the coil (8). When one side of the second rubber pressing sheet (657) is in close contact with the outside of the coil (8), the second rubber pressing sheet (657) pushes the double column rod (656) to move. The double column rod (656) slides on the inner side of the spring fixing groove (654) opened in the clamping block (651). The double column rod (656) squeezes the buffer spring (655). The second rubber pressing sheet (657) and the first rubber pressing sheet (67) cooperate to fix the coil (8).

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