A new energy drive motor cooling shell

Abstract

The present invention discloses a new energy drive motor cooling housing, comprising a water-cooled end cover and a high-thermal conductivity stator assembly, wherein the high-thermal conductivity stator assembly is fixed in the water-cooled end cover, and the high-thermal conductivity stator assembly comprises a stator core, a winding coil, and a sealed heat-conducting mechanism. The surface of the stator core is arrayed with a plurality of stator core teeth in a circumferential direction, and the winding coil is mounted on the stator core teeth. The sealed heat-conducting mechanism is arranged between the water-cooled end cover and the stator core. A cooling circuit is provided inside the water-cooled end cover, and a strong heat exchange zone is provided at the back position of each winding coil corresponding to the cooling circuit. Through the design of the strong heat exchange zone, each group of winding coils can correspond to a strong heat exchange zone, so that each group of winding coils can be focused on heat dissipation, thereby enhancing the overall heat dissipation effect of the disc motor.

Description

Technical Field

[0001] The present invention relates to a motor cooling system, and in particular to a cooling shell of a new energy drive motor. Background Art

[0002] Unlike the radial magnetic field of traditional cylindrical motors, the disc motor has a planar air gap and an axial air gap magnetic field. It has the characteristics of short axial dimension, light weight, simple structure, and flexible control. It also has the advantages of high power / volume ratio, high power factor, and small required inverter capacity. It is a widely used motor. Disc motors inevitably generate heat during operation. Usually, cooling channels are set in the disc motor casing to cool the motor by circulating coolant into it. However, during the use of the existing disc motor, the stator assembly is the main heat-generating component of the disc motor. The stator assembly is mainly composed of a stator core and a winding coil. The winding coil is the main heat-generating body. Therefore, the temperature near the winding coil is usually the highest. Therefore, it is necessary to focus on cooling the location of the winding coil. However, the existing cooling channel located at the water-cooled end cover does not take this into consideration, resulting in the temperature around the winding coil not being able to be well cooled during the flow of cooling water through the cooling channel, resulting in poor overall heat dissipation effect of the disc motor. At the same time, during the heating process of the winding coil, the part close to the inner ring of the stator core is relatively dense, and the temperature is usually higher than the part of the winding coil located on the outer ring of the stator core. Therefore, it is also necessary to consider the characteristics of the stator assembly with low outer ring temperature and high inner ring temperature. Therefore, it is necessary to propose a new energy drive motor cooling shell. Summary of the Invention

[0003] The purpose of the present invention is to solve the existing problems and provide a new energy drive motor cooling shell.

[0004] A new energy intelligent drive motor cooling system includes a water-cooled end cover and a high thermal conductivity stator assembly, wherein the high thermal conductivity stator assembly is fixed in the water-cooled end cover, and the high thermal conductivity stator assembly includes a stator core, a winding coil, and a sealed heat-conducting mechanism. The surface of the stator core is arrayed with a plurality of stator core teeth in a circumferential direction, and the winding coil is mounted on the stator core teeth. The sealed heat-conducting mechanism is arranged between the water-cooled end cover and the stator core. A cooling circuit is provided inside the water-cooled end cover, and a strong heat exchange zone is provided at the back position of each winding coil in the cooling circuit. A coolant connection box is provided on the outside of the water-cooled end cover, and a coolant inlet and a coolant outlet are provided in the coolant connection box; the cooling circuit is connected to the coolant connection box.

[0005] Preferably, the cooling circuit includes an outer heat dissipation channel and an inner heat dissipation channel, the tail ends of the outer heat dissipation channel and the inner heat dissipation channel are interconnected, and the heads of the outer heat dissipation channel and the inner heat dissipation channel are respectively connected to the coolant inlet and the coolant outlet; the advantage that the temperature of the outer ring of the winding coil is lower than that of the inner ring is fully utilized, so that the cooling water passes through the inner ring first and then the outer ring, or passes through the outer ring first and then the inner ring. The temperature of the cooling water is taken into consideration to ensure that the outer ring of the stator assembly can dissipate heat while the inner ring can fully dissipate heat, which is more energy-saving and environmentally friendly.

[0006] The outer heat dissipation channel and the inner heat dissipation channel are annularly arranged along the circumferential direction of the water-cooled end cover, and the inner heat dissipation channel is arranged on the inner side of the outer heat dissipation channel, and the outer heat dissipation channel and the inner heat dissipation channel both include alternatingly connected horizontal flow areas and oblique flow areas, the horizontal flow area is arranged along the circumferential direction of the water-cooled end cover, and the oblique flow area is obliquely arranged across the inner and outer rings of the water-cooled section end cover, the oblique flow areas of the outer heat dissipation channel and the inner heat dissipation channel correspond one-to-one to the back side of the winding coil, forming the strong heat exchange area, the inner ring of the winding coil can be cooled by the inner heat dissipation channel, and the outer ring of the winding coil can be cooled by the outer heat dissipation channel, thereby increasing the heat dissipation area of ​​the cooling circuit at the winding coil position, and the oblique flow area makes the cooling water pass through the heat conduction plate area above the winding coil in an oblique manner, thereby extending the cooling route of the cooling water in the heat conduction plate area above the winding coil, thereby enhancing the heat dissipation effect near the winding coil.

[0007] Preferably, the sealed heat-conducting mechanism includes a heat-conducting plate, a sealing plate, and a heat dissipation column. The heat-conducting plate and the heat-dissipating column are made of heat-conducting materials, such as metal materials. The cooling circuit is a stepped groove type, and the stepped groove type is provided with a first step and a second step. The sealing plate is embedded in the first step of the stepped groove. The outer dimensions of the sealing plate are matched with the trajectory of the cooling circuit. The heat-conducting plate is fixed on the other side of the sealing plate. The heat-dissipating column passes through the sealing plate and is fixedly connected to the heat-conducting plate, and the heat-dissipating column is tightly fitted with the sealing plate. The sealing plate can be made of rubber, which can wrap the heat-dissipating column to prevent cooling water from overflowing.

[0008] Preferably, a card slot is provided on the first step of the stepped groove, and the card slot is along the trajectory direction of the cooling circuit. The sealing plate is provided with a sealing strip that cooperates with the card slot to prevent water from overflowing from both sides of the cooling circuit and enhance the sealing effect.

[0009] Preferably, a clamping ring is provided on the second step, and a sealing ring that cooperates with the clamping ring is fixedly connected to the heat conduction plate to prevent insufficient sealing between the sealing plate and the heat dissipation column, which causes water to flow out from the gap between the heat dissipation column and the sealing plate, thereby ensuring the sealing effect of the cooling circuit and preventing water from seeping out and causing safety hazards.

[0010] Preferably, the heat dissipation column is spindle-shaped, and the two ends of the spindle tip are located in the direction of the water inlet and outlet of the cooling circuit. Since the two ends of the spindle are relatively sharp, it can be beneficial to the flow of water, reduce flow resistance, and improve the heat dissipation effect.

[0011] Preferably, the sealed heat-conducting mechanism is fixedly connected to the end cover by screws passing through the heat-conducting plate to prevent the sealed heat-conducting mechanism from loosening and shifting.

[0012] The heat conducting plate is annular, and the inner ring and the outer ring of the heat conducting plate are both provided with the sealing ring, which can seal the cooling circuit between the inner ring and the outer ring of the heat conducting plate.

[0013] The beneficial effects of the present invention are:

[0014] 1. The present invention adopts the design of the strong heat exchange zone so that each winding coil can correspond to a strong heat exchange zone, thereby enabling focused heat dissipation of each group of winding coils, thereby enhancing the overall heat dissipation effect of the disc motor.

[0015] 2. The present invention enhances the heat dissipation area near the winding coil by setting up the inner heat dissipation channel and the outer heat dissipation channel in the strong heat exchange area. At the same time, the oblique flow area of ​​the inner heat dissipation channel and the outer heat dissipation channel corresponds to the back side of each winding coil, thereby extending the cooling path of the cooling water in the heat conduction plate area corresponding to the winding coil, thereby extending the cooling path. By extending the cooling path and increasing the heat dissipation area, the heat dissipation effect near the winding coil is enhanced, and the purpose of focusing on the heat dissipation of the winding coil is achieved.

[0016] 3. The present invention embeds a sealing plate of a sealed heat-conducting mechanism on the first step of the cooling circuit to seal the cooling circuit and prevent water from overflowing. At the same time, the heat generated by the winding coil can be first conducted to the heat-conducting plate and then to the cooling circuit through the heat dissipation column, thereby preventing water from overflowing and ensuring a sealing effect.

[0017] 4. The heat dissipation column of the present invention is spindle-shaped, and the two ends of the spindle tip are located in the direction of the water inlet and outlet of the cooling circuit. Since the two ends of the spindle are relatively sharp, it can be beneficial to the flow of water, reduce flow resistance, and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the splitting of the present invention;

[0019] Figure 2Schematic diagram of the sealing heat conducting mechanism of the present invention;

[0020] Figure 3 A schematic diagram showing that the heat dissipation block of the sealed heat conducting mechanism of the present invention is elliptical;

[0021] Figure 4 A schematic cross-sectional view of the connection between the cooling circuit and the sealed heat conducting mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the cooling water flow of the present invention;

[0023] Figure 6 It is a cross-sectional schematic diagram of the disc motor of the present invention; DETAILED DESCRIPTION

[0024] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0025] The present invention will be described in detail below with reference to the accompanying drawings using embodiments.

[0026] Example 1:

[0027] like Figure 1-6As shown, a new energy intelligent drive motor cooling system includes a water-cooled end cover 1 and a high thermal conductivity stator assembly 2. The high thermal conductivity stator assembly 2 is fixed in the water-cooled end cover 1. The high thermal conductivity stator assembly 2 includes a stator core 21, a winding coil 22, and a sealed heat-conducting mechanism 5. The surface of the stator core 21 is arrayed with a plurality of stator core teeth 211 in a circumferential direction. The winding coil 22 is installed on the stator core teeth 211. The sealed heat-conducting mechanism 5 is arranged between the water-cooled end cover 1 and the stator core 21. A cooling circuit 4 is provided inside the water-cooled end cover 1. The cooling circuit 4 is provided with a strong heat exchange area 43 at the back position corresponding to each winding coil 22. A coolant connection box 7 is provided on the outside of the water-cooled end cover 1. A coolant inlet 71 and a coolant outlet 7 are provided in the coolant connection box 7. 2; the cooling circuit 4 is connected to the coolant connection box 7; the cooling circuit 4 includes an external heat dissipation channel 46 and an internal heat dissipation channel 47, the tail ends of the external heat dissipation channel 46 and the internal heat dissipation channel 47 are connected to each other, and the heads of the external heat dissipation channel 46 and the internal heat dissipation channel 47 are respectively connected to the coolant inlet 71 and the coolant outlet 72; the external heat dissipation channel 46 and the internal heat dissipation channel 47 are annularly arranged along the circumferential direction of the water-cooled end cover 1, and the internal heat dissipation channel 47 is arranged on the inner side of the external heat dissipation channel 46, and the external heat dissipation channel 46 and the internal heat dissipation channel 47 both include alternatingly connected horizontal flow areas 461 and oblique flow areas 462, and the oblique flow areas 462 of the external heat dissipation channel 46 and the internal heat dissipation channel 47 correspond one-to-one to the back side of the winding coil 22, constituting the strong heat exchange area 43.

[0028] like Figure 2-4 As shown, the sealed heat-conducting mechanism 5 includes a heat-conducting plate 51, a sealing plate 52, and a heat dissipation column 53. The cooling circuit 4 is a stepped groove type. The cooling circuit 4 is provided with a first step and a second step. The sealing plate 52 is embedded in the first step. The heat-conducting plate 51 is fixed on the other side of the sealing plate 52. The heat-dissipating column 53 passes through the sealing plate 52 and is fixedly connected to the heat-conducting plate 51, and the heat-dissipating column fits tightly with the sealing plate 52. A card slot 401 is provided on the first step, and a sealing strip 521 that cooperates with the card slot 401 is provided on the sealing plate 52. A clamping ring 402 is provided on the second step. A sealing ring 522 that cooperates with the clamping ring 402 is fixedly connected to the heat-conducting plate 51, and the heat-dissipating column 53 is shuttle-shaped.

[0029] The working principle of the structure of the present invention is: Figure 1-6As shown, the sealing plate 52 of the sealed heat-conducting mechanism 5 is embedded in the first step 401, and the sealing strip 521 is snapped into the slot 401. The sealing ring 522 on the heat-conducting plate 51 is snapped into the clamping ring 62. The heat-conducting plate 51 is sealed and fixedly connected to the water-cooled end cover 1 using screws, thereby completing the connection between the sealed heat-conducting mechanism 5 and the water-cooled end cover 1. Then, the winding coil 22 is wound on the stator core 21, and the stator core 21 with the winding coil 22 and the rotor assembly are installed between the two water-cooled end covers 1. The water-cooling end covers 1 are connected by screws to complete the installation of the motor, and then the cooling water is input into the cooling circuit 4 through the inlet cooling channel 41. Under the sealing effect of the sealing plate 52, the groove 61 and the seal 521, and the clamping ring 62 and the sealing ring 522, the cooling water cannot flow out of the sealed heat-conducting mechanism 5, thereby ensuring the normal operation of the motor. At the same time, through the heat conduction effect of the sealed heat-conducting mechanism 5, the heat can be quickly transferred to the cooling circuit 4 for rapid heat dissipation, thereby ensuring the heat dissipation effect of the motor.

[0030] During the cooling process, the cooling water is used to exchange heat with the heat generated by the winding coil 22 near the inner ring of the stator core 21 through the inner heat dissipation channel 47, and the heat is transferred to the inner heat dissipation channel 47 through the heat conduction plate 51 and the heat dissipation column 53. Then, the heat generated by the winding coil 22 near the outer ring of the stator core 21 is transferred to the outer heat dissipation channel 47 through the heat conduction plate 51 and the heat dissipation column 53 through the outer heat dissipation channel 46, thereby focusing on dissipating the heat generated near the winding coil 22, improving the heat dissipation effect near the winding coil 22, and thus improving the overall heat dissipation effect of the motor. By flowing the cooling water in the inner heat dissipation channel 47 to the outer heat dissipation channel 46, the advantage of the large temperature difference between the inside and the outside can be reasonably utilized to ensure that the outer ring of the stator assembly is dissipated while the inner ring can fully dissipate heat, reasonably utilize the cooling water, and be more energy-saving and environmentally friendly.

[0031] Example 2:

[0032] like Figure 3 , which is different from the above-mentioned embodiment 1 in that the heat dissipation column 53 is elliptical, and the long axis direction of the ellipse is consistent with the flow direction of the cooling water.

Claims

1. A new energy drive motor cooling housing, characterized by: The invention comprises a water-cooled end cover (1) and a high-thermal-conductivity stator assembly (2), wherein the high-thermal-conductivity stator assembly (2) is fixed in the water-cooled end cover (1), the high-thermal-conductivity stator assembly (2) comprises a stator core (21), a winding coil (22), and a sealed heat-conducting mechanism (5), the surface of the stator core (21) is arrayed with a plurality of stator core teeth (211) along a circumferential direction, the winding coil (22) is mounted on the stator core teeth (211), and the sealed heat-conducting mechanism (5) It is arranged between the water-cooled end cover (1) and the stator core (21), a cooling circuit (4) is provided inside the water-cooled end cover (1), a strong heat exchange area (43) is provided at the back position of each winding coil (22) of the cooling circuit (4), a cooling liquid connection box (7) is provided outside the water-cooled end cover (1), and a cooling liquid inlet (71) and a cooling liquid outlet (72) are provided inside the cooling liquid connection box (7); the cooling circuit (4) is connected to the cooling liquid connection box (7); The cooling circuit (4) includes an external heat dissipation channel (46) and an internal heat dissipation channel (47), the tail ends of the external heat dissipation channel (46) and the internal heat dissipation channel (47) are interconnected, and the heads of the external heat dissipation channel (46) and the internal heat dissipation channel (47) are respectively connected to the coolant inlet (71) and the coolant outlet (72); the external heat dissipation channel (46) and the internal heat dissipation channel (47) are annularly arranged along the circumferential direction of the water-cooled end cover (1), and the internal heat dissipation channel (47) is arranged on the inner side of the external heat dissipation channel (46); The outer heat dissipation channel (46) and the inner heat dissipation channel (47) both include alternatingly connected horizontal flow areas (461) and oblique flow areas (462), and the oblique flow areas (462) of the outer heat dissipation channel (46) and the inner heat dissipation channel (47) correspond one-to-one to the back side of the winding coil (22), forming the strong heat exchange area (43); The sealed heat-conducting mechanism (5) includes a heat-conducting plate (51), a sealing plate (52), and a heat-dissipating column (53); the cooling circuit (4) is a stepped groove type; the cooling circuit (4) is provided with a first step (401) and a second step (402); the sealing plate (52) is embedded in the first step (401); the heat-conducting plate (51) is fixed to the other side of the sealing plate (52); the heat-dissipating column (53) passes through the sealing plate (52) and is fixedly connected to the heat-conducting plate (51); and the heat-dissipating column and the sealing plate (52) are tightly fitted; A slot (403) is provided on the first step (401), a sealing strip (521) that cooperates with the slot (403) is provided on the sealing plate (52), and the heat dissipation column (53) is spindle-shaped.

2. The new energy drive motor cooling housing according to claim 1, characterized in that: A clamping ring (404) is provided on the second step (402), and a sealing ring (522) cooperating with the clamping ring (404) is fixedly connected to the heat conducting plate (51).

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