WO2024001258A1 - Moteur - Google Patents

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Publication number
WO2024001258A1
WO2024001258A1 PCT/CN2023/078723 CN2023078723W WO2024001258A1 WO 2024001258 A1 WO2024001258 A1 WO 2024001258A1 CN 2023078723 W CN2023078723 W CN 2023078723W WO 2024001258 A1 WO2024001258 A1 WO 2024001258A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat dissipation
cover body
bearing chamber
side wall
wall
Prior art date
Application number
PCT/CN2023/078723
Other languages
English (en)
Chinese (zh)
Inventor
刘也
郭丙春
吴迪
张兵
Original Assignee
淮安威灵电机制造有限公司
佛山市威灵洗涤电机制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210790662.8A external-priority patent/CN115118061A/zh
Application filed by 淮安威灵电机制造有限公司, 佛山市威灵洗涤电机制造有限公司 filed Critical 淮安威灵电机制造有限公司
Publication of WO2024001258A1 publication Critical patent/WO2024001258A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium

Definitions

  • the present application belongs to the technical field of electrical equipment, and specifically relates to a motor.
  • the temperature rise problem is a major problem for single-phase asynchronous motors. Opening heat dissipation holes on the end cover can effectively improve the temperature rise. The closer the heat dissipation holes on the bottom surface of the end cover are to the rotor, the better the heat dissipation effect.
  • the relevant bearing chamber is made by a deep drawing process. The gap between the bearing chamber and the end cover body is large, resulting in the heat dissipation hole being far away from the rotor, making it difficult to quickly realize the heat dissipation function.
  • This application aims to solve one of the technical problems existing in the existing technology or related technology.
  • this application proposes a motor, including: a cover body, the cover body includes a bottom wall and a side wall, the side wall is connected to the bottom wall, the side wall and the bottom wall enclose a cavity, and the bottom wall is provided with
  • the first heat dissipation hole is connected with the cavity;
  • the stretching part is connected with the cover body;
  • the bearing chamber is connected with the stretching part, and along the axial direction of the motor, the stretching part is fit with the outer wall of the bearing chamber;
  • the rotating shaft The rotating shaft passes through the bearing chamber;
  • the stator is connected to the cover body; the rotor is sleeved on the rotating shaft;
  • the inner diameter of the bearing chamber is D1
  • the stretching part includes: an annular stretching part; the outer diameter of the annular stretching part is D2, the wall thickness of the annular stretching part is t1, and the wall thickness of the bearing chamber is t2, 2 ⁇ (t1 +t2) ⁇ D2-D1 ⁇ 2 ⁇ (t1+t2)+3mm.
  • the inner diameter of the side wall is D3; the maximum distance between the outer wall of the first heat dissipation hole and the axis of the bearing chamber is B, and B ⁇ D3/2.
  • the first end of the side wall is connected to the bottom wall, the connection between the side wall and the bottom wall is provided with a first outer fillet, and the second end of the side wall is provided with a third Two external fillets.
  • the radius of the first outer corner is R1, and the radius of the second outer corner is R2; a plurality of second heat dissipation holes are provided on the side wall; the plurality of second heat dissipation holes are connected to the bottom wall.
  • the axial distance is C1, C1 ⁇ R1+2mm; the axial distance between the plurality of second heat dissipation holes and the second end of the side wall is C2, C2 ⁇ R2+2mm.
  • a plurality of second heat dissipation holes are distributed at intervals along the circumferential direction and/or axial direction of the motor.
  • the width of the second heat dissipation hole along the axial direction of the motor is C3, 2mm ⁇ C3 ⁇ 30mm.
  • the first end of the bearing chamber is located in the cavity, the second end of the bearing chamber extends out of the cover body, and the cover body is in circumferential contact with the bearing chamber.
  • the first end of the stretching part is connected to the cover body
  • the second end of the stretching part is connected to the first end of the bearing chamber
  • the cover body, the stretching part and the bearing chamber are an integrally formed structure.
  • the first heat dissipation hole is cut along the radial direction of the bearing chamber, and the cross section of the first heat dissipation hole is fan-shaped.
  • the stator includes: a stator core, the stator core is provided with slots; a stator winding is wound around the stator core, and the stator winding passes through the slots; the distance between the stator winding and the bottom wall is H, H ⁇ 1.5mm.
  • the stator winding includes: a first winding part extending out of the first end of the stator core and located in the cover body; a plurality of second heat dissipation holes are provided on the side walls of the cover body , the minimum distance between the plurality of second heat dissipation holes and the bottom wall of the cover body is smaller than the minimum distance between the first winding part and the bottom wall; the maximum distance between the plurality of second heat dissipation holes and the bottom wall is greater than the maximum distance between the first winding part and the bottom wall. spacing.
  • the inner wall of the first heat dissipation hole can be as close as possible to the outer edge of the stretching part. Therefore, the first heat dissipation hole should be as close as possible to the axis of the cover body, while ensuring the heat dissipation effect. Basically, since the first heat dissipation holes are not in contact with the tensile part, the first heat dissipation holes will not cause damage to the structure of the tensile part, and the cover body will be deformed, thereby improving the assembly stability of the cover body and the stator.
  • Figure 1 shows one of the front views of the cover body in the embodiment of the present application
  • Figure 2 shows a bottom view of the cover body in an embodiment of the present application
  • Figure 3 shows the second front view of the cover body in the embodiment of the present application
  • Figure 4 shows a schematic structural diagram of the motor in the embodiment of the present application.
  • 110 cover body, 111 bottom wall, 112 side wall, 113 first heat dissipation hole, 114 second heat dissipation hole, 120 stretching part, 130 bearing chamber, 140 first outer fillet, 150 second outer fillet, 300 stator, 310 stator core, 320 stator winding, 321 first winding part, 322 second winding part, 400 rotor, 500 bearing, 600 rotating shaft.
  • a motor provided according to some embodiments of the present application is described below with reference to FIGS. 1 to 4 .
  • a motor in an embodiment of the present application, includes: a cover body 110 , a stretching part 120 , a bearing chamber 130 , a rotating shaft 600 , a stator 300 and a rotor 400 .
  • the cover body 110 includes a bottom wall 111 and a side wall 112.
  • the side wall 112 is connected to the bottom wall 111.
  • the side wall 112 and the bottom wall 111 enclose a cavity.
  • the bottom wall 111 is provided with a first heat sink connected to the cavity. Hole 113.
  • the stretching portion 120 is connected to the cover body 110 and extends along the axial direction of the motor.
  • the bearing chamber 130 is connected to the stretching part 120 and extends along the axial direction of the motor.
  • the stretching part 120 fits the outer wall of the bearing chamber 130; the rotating shaft 600 passes through the bearing chamber 130, and the stator 300 and the cover The body 110 is connected, the rotor 400 is sleeved on the rotating shaft 600, the inner diameter of the bearing chamber 130 is D1, the sum of the wall thicknesses of the stretching part 120 and the bearing chamber 130 is T, the inner wall of the first heat dissipation hole 113 and the inner diameter of the bearing chamber 130 are The minimum distance between the axis is A, A ⁇ D1/2+T.
  • the cover body 110 is composed of a bottom wall 111 and an annular side wall 112. A cavity is formed between the bottom wall 111 and the side wall 112. A first groove is formed on the bottom wall 111 of the cover body 110.
  • the heat dissipation hole 113 and the first heat dissipation hole 113 are connected with the cavity, so the heat in the cavity can be heat exchanged with the outside through the first heat dissipation hole 113.
  • the cover body 110 is provided with a stretching part 120, and the bearing chamber 130 is connected to the stretching part 120.
  • the cover body 110 in this application is made by a stretching process.
  • the raw material is stretched using a stretching process.
  • the cover body 110 is formed, and a part of the cover body 110 is stretched multiple times to form the stretched portion 120 and the bearing chamber 130 .
  • the stretching part 120 is in contact with the outer wall of the bearing chamber 130 .
  • the stretched portion 120 is fitted to the outer wall of the bearing chamber 130 so that the stretched portion 120 is as close as possible to the axis of the cover body 110 .
  • the first heat dissipation hole 113 on the cover body 110 can be as close as possible to the axis of the cover body 110.
  • the stretching part 120 and the bearing chamber 130 both extend along the axial direction of the cover body 110, and the stretching part 120 and the bearing chamber 130 fit together, so the stretching part 120 and the bearing chamber 130 are stacked, and the stretching part 120 and the bearing chamber
  • the sum of the thicknesses of 130 is T.
  • the inner diameter of the bearing chamber 130 is D1
  • the minimum distance between the inner wall of the first heat dissipation hole 113 and the axis of the bearing chamber 130 is A, which satisfies A ⁇ D1/2+T.
  • D1/2 is the distance from the axis of the bearing chamber 130 to the inner wall of the bearing chamber 130
  • D1/2+T is the distance from the axis of the bearing chamber 130 to the outer edge of the stretching part 120.
  • the inner wall of the first heat dissipation hole 113 can be as close as possible to the outer edge of the stretching portion 120, so the first heat dissipation hole 113 should be as close as possible to the axis of the cover body 110.
  • the first heat dissipation holes 113 since the first heat dissipation holes 113 are not in contact with the stretching part 120, the first heat dissipation holes 113 will not cause damage to the structure of the stretching part 120, and the cover body 110 will be deformed, so that the cover can be lifted.
  • the first heat dissipation hole 113 since the first heat dissipation hole 113 is relatively close to the stretching part 120, the first heat dissipation hole 113 can face the rotor 400, and the heat generated by the rotor 400 can be directly transferred to the outside through the first heat dissipation hole 113. exchange.
  • a plurality of first heat dissipation holes 113 may be provided on the bottom wall 111 , and the first heat dissipation holes 113 are distributed along the circumferential direction of the bearing chamber 130 .
  • the structural strength of the connection position between the cover body 110 and the stretching part 120 is relatively weak.
  • a distance of at least 3 mm is set between the first heat dissipation hole 113 and the outer wall of the stretching part 120 .
  • the 3 mm spacing is a safe distance between the first heat dissipation hole 113 and the stretching part 120 .
  • the cover body 110 and the stator 300 are locked by locking parts such as screws.
  • a part of the stator 300 can be extended into the cover body 110 to realize the positioning function of the stator 300 and the cover body 110 .
  • Positioning protrusions may also be provided on the cover body 110 , positioning holes may be provided on the stator 300 , and the positioning protrusions may be inserted into the positioning holes to realize the positioning function of the stator 300 and the cover body 110 .
  • the stretching portion 120 is an annular structure, and along the circumferential direction of the bearing chamber 130, the stretching portion 120 is in contact with the outer wall of the bearing chamber 130.
  • the wall thickness of the annular stretching part is t1
  • the wall thickness of the bearing chamber is t2.
  • the difference between the outer diameter of the annular stretched portion and the inner diameter of the bearing chamber 130 is between 2 ⁇ (t1+t2) and 2 ⁇ (t1+t2)+3mm, which illustrates that the difference between the bearing chamber 130 and the annular stretched portion There is no gap or only a small gap, and the stretching portion 120 is tightly fitted or partially fitted to the bearing chamber 130 .
  • the distance between the first heat dissipation hole 113 and the rotor 400 is small, and the heat around the rotor 400 can be quickly exchanged with the outside through the first heat dissipation hole 113.
  • the stability of the motor during operation can be ensured, which is beneficial to improving the performance of the motor. Motor performance.
  • bearing 500 has a cylindrical shape.
  • the inner diameter of the side wall 112 is D3; the maximum distance between the outer wall of the first heat dissipation hole 113 and the axis of the bearing chamber 130 is B, B ⁇ D3/2 .
  • the first heat dissipation hole 113 is cut along the radial direction of the bearing chamber 130.
  • the larger the cross-sectional area of the first heat dissipation hole 113, the first heat dissipation hole 113 will also affect the structural strength of the cover body 110. Therefore, there needs to be a balance between the heat dissipation effect of the first heat dissipation hole 113 and the structural strength of the cover body 110. Make a balance.
  • the inner diameter of the cover body 110 will also change accordingly. Therefore, the inner diameter of the cover body 110 and the size of the first heat dissipation hole 113 can be related in a proportional manner.
  • the distance between the axis of the first heat dissipation hole 113 and the bearing chamber 130 has been defined as A ⁇ D1/2+2t, which limits the opening position of the first heat dissipation hole 113 on the side close to the bearing chamber 130 .
  • the maximum distance between the outer wall of the first heat dissipation hole 113 and the axis of the bearing chamber 130 is B, B ⁇ D3/2, which limits the opening position of the side of the first heat dissipation hole 113 away from the bearing chamber 130.
  • the maximum distance between the outer wall and the axis of the bearing chamber 130 is half of the inner diameter of the side wall 112. This limitation prevents the first heat dissipation hole 113 from being too large in the radial direction, thereby preventing the first heat dissipation hole 113 from colliding with the cover body 110. cause damage to the structure.
  • the maximum radial size that can be opened by the first heat dissipation hole 113 can be determined.
  • the impact of the first heat dissipation hole 113 on the cover body 110 can be avoided.
  • the structure is damaged, and the first heat dissipation hole 113 can have a larger cross-sectional area, thereby improving the heat dissipation effect of the cover body 110 on the basis of ensuring the structural strength of the cover body 110 .
  • the first end of the side wall 112 is connected to the bottom wall 111, and the connection between the side wall 112 and the bottom wall 111 is provided There is a first outer corner 140 and a second outer corner 150 is provided at the second end of the side wall 112 .
  • a first outer fillet 140 is formed between the side wall 112 and the bottom wall 111 of the cover body 110 , so that there is a smooth transition structure between the side wall 112 and the bottom wall 111 of the cover body 110 .
  • a first outer rounded corner 140 is formed between the side wall 112 and the bottom wall 111 of the cover body 110, so that deformation is less likely to occur between the side wall 112 and the bottom wall 111. , which can ensure that the cover body 110 has good structural strength.
  • a second outer fillet 150 is formed on the second end of the side wall 112.
  • the second end of the cover body 110 is in contact with the stator 300.
  • the second end of the side wall 112 is bent to increase the contact area between the cover body 110 and the stator 300, thereby preventing the cover body 110 and the stator 300 from shaking relative to each other.
  • the second outer fillet 150 at the second end of the side wall 112
  • the second end of the side wall 112 has a smooth transition structure. Therefore, the second end of the side wall 112 is not easy to change, further ensuring that the cover body 110 has better performance. structural strength.
  • the radius of the first outer corner 140 is R1 and the radius of the second outer corner 150 is R2;
  • the side wall 112 is provided with a plurality of Second heat dissipation holes 114;
  • the axial distance between the plurality of second heat dissipation holes 114 and the bottom wall 111 is C1, C1 ⁇ R1+2mm;
  • the axial distance between the plurality of second heat dissipation holes 114 and the second end of the side wall 112 is C2 , C2 ⁇ R2+2mm.
  • a second heat dissipation hole 114 is formed on the side wall 112 of the cover body 110 .
  • One of the first heat dissipation hole 113 and the second heat dissipation hole 114 may be an air inlet, and the other may be an air outlet.
  • the first heat dissipation hole 113 is an air inlet
  • the second heat dissipation hole 114 is an air outlet. The wind flows in from the first heat dissipation hole 113 on the bottom wall 111, passes through the rotor 400, and then passes through the second heat dissipation hole on the side wall 112. 114 outflow.
  • the distance between the second heat dissipation hole 114 and the bottom wall 111 is C1, C1 ⁇ R1+2mm, and R1 is the radius of the first outer corner 140.
  • the distance between the second heat dissipation hole 114 and the second end of the side wall 112 is C2, C2 ⁇ R2+2mm, and R2 is the radius of the second outer fillet 150.
  • the distance between the second heat dissipation hole 114 and the side wall 112 is A safe distance is maintained between the second ends, and the second heat dissipation hole 114 will not be too close to the second end of the side wall 112 to prevent the second heat dissipation hole 114 from affecting the structural strength of the second end of the side wall 112 and ensure that the cover body 110 and The stator 300 can be in stable contact.
  • a plurality of second heat dissipation holes 114 are spaced apart along the circumferential direction and/or axial direction of the motor.
  • a plurality of second heat dissipation holes 114 are spaced apart along the circumferential direction of the cover body 110 so that the cover body 110 can evenly dissipate heat along the circumferential direction.
  • a plurality of second heat dissipation holes 114 are spaced apart. That is, the plurality of second heat dissipation holes 114 can be arranged in multiple rows. By increasing the number of the second heat dissipation holes 114, the heat dissipation of the cover body 110 can be improved. Effect.
  • the plurality of second heat dissipation holes 114 are arranged in double rows.
  • the minimum distance between the second heat dissipation hole 114 and the bottom wall 111 is the minimum distance between the second heat dissipation hole 114 in the first row and the bottom wall 111 .
  • the minimum distance between the second heat dissipation hole 114 and the second end of the side wall 112 is the minimum distance between the second heat dissipation hole 114 in the second row and the bottom wall 111 .
  • the width of the second heat dissipation hole 114 along the axial direction of the motor is C3, and 2mm ⁇ C3 ⁇ 30mm.
  • the width of the second heat dissipation hole 114 when the width of the second heat dissipation hole 114 is small, the air flow through the second heat dissipation hole 114 is greatly hindered, and the heat dissipation effect of the second heat dissipation hole 114 is poor.
  • the width of the second heat dissipation hole 114 is large, the side wall 112 has no physical structure in a large area, which results in a low structural strength of the side wall 112 and the side wall 112 is prone to deformation and rupture.
  • the width of the second heat dissipation hole 114 affects the heat dissipation effect and the structural strength of the side wall 112 .
  • the width of the second heat dissipation hole 114 along the axial direction of the motor is C3, 2mm ⁇ C3 ⁇ 30mm. Within this range, the width of the second heat dissipation hole 114 is relatively large, and the air flow can pass through the second heat dissipation hole 114 smoothly, which is beneficial to improving the heat dissipation effect of the second heat dissipation hole 114 .
  • the width of the second heat dissipation hole 114 is limited to the above range to prevent the second heat dissipation hole 114 from causing damage to the structure of the side wall 112.
  • the side wall 112 of the cover body 110 is not prone to deformation and rupture, ensuring that the cover body 110 has a relatively good performance. Strong structural stability.
  • the first end of the bearing chamber 130 is located in the cavity, the second end of the bearing chamber 130 extends out of the cover body 110, and the cover body 110 is in circumferential contact with the bearing chamber 130. .
  • the first end of the bearing chamber 130 is located within the cavity, and the bearing chamber 130 is used to place the bearing 500 .
  • the second end of the bearing chamber 130 extends out of the cover body 110 or is flush with the cover body 110, and the cover body 110 abuts the bearing chamber 130 in the circumferential direction, so the cover body 110 can support the bearing chamber 130. It is beneficial to increase the structural strength of the bearing chamber 130.
  • the bearing 500 When the motor is running, the bearing 500 will be subjected to the radial force of the rotating shaft 600.
  • the bearing chamber 130 supports the bearing 500.
  • the bearing chamber 130 is supported by the cover body 110, and the bearing chamber 130 is not easily deformed or damaged. It is ensured that the bearing chamber 130 can stably support the bearing 500 to ensure the stability of the motor during operation.
  • the second end of the bearing chamber 130 may not protrude from the cover body 110 , but may be flush with the bottom wall 111 of the cover body.
  • the first end of the stretching part 120 is connected to the cover body 110
  • the second end of the stretching part 120 is connected to the first end of the bearing chamber 130
  • the cover body 110 , the stretching part 120 and the bearing Chamber 130 is an integrally formed structure.
  • the cover body 110 , the stretching portion 120 and the bearing chamber 130 are an integrally formed structure.
  • the cover body 110 is formed through a stretching process.
  • the cover body 110 is a stretched end cap.
  • the cover body 110 can be processed through fewer processing steps, which improves the convenience of processing the cover body 110 .
  • the cover body 110 , the tensile part 120 and the bearing chamber 130 are an integrally stretched structure, the thickness of the cover body 110 , the tensile part 120 and the bearing chamber 130 can be the same everywhere, and the structural strength of the cover body 110 is the same everywhere. , the cover body 110 is not easily deformed, which is beneficial to improving the assembly stability of the cover body 110 and the stator 300 of the motor.
  • the cover body 110 is made of galvanized sheet.
  • the first heat dissipation hole 113 is cut along the radial direction of the bearing chamber 130 , and the cross section of the first heat dissipation hole 113 is fan-shaped.
  • the cross section of the first heat dissipation hole 113 is fan-shaped, and the axis of the first heat dissipation hole 113 coincides with the axis of the bearing chamber 130 .
  • the shape of the first heat dissipation hole 113 is adapted to the shape of the cover body 110 , thereby reducing the difficulty of processing the first heat dissipation hole 113 .
  • the stator 300 includes: a stator core 310 and a stator winding 320.
  • the stator core 310 is provided with slots.
  • the stator winding 320 is wound around the stator core 310.
  • the stator winding 320 passes through the slots; the stator winding 320 is connected to the bottom of the cover body 110.
  • the distance between the walls 111 is H, H ⁇ 1.5mm.
  • slot paper is inserted through the slot hole, and the slot paper can insulate the stator winding 320 and the stator core 310 .
  • stator winding 320 During the energization process of the stator winding 320, it is necessary to ensure that the stator winding 320 maintains an electrical safety distance from the bottom wall 111 of the cover body 110 to prevent the cover body 110 from being penetrated.
  • the radial distance H between the stator winding 320 and the bottom wall 111 of the cover body 110 is set to ⁇ 1.5 mm. Within this range, the stator winding 320 cannot easily penetrate the bottom wall 111 of the cover body 110 , thereby ensuring the safety of the motor during operation.
  • the maximum distance between the straight line L passing through two points on the stator winding 320 is D4
  • the side wall 112 of the cover body 110 The inner diameter is D3, D3 ⁇ D4+3mm.
  • stator winding 320 when the stator winding 320 is energized, it is necessary to ensure that the stator winding 320 maintains an electrically safe distance from the side wall 112 of the cover body 110 to prevent the side wall 112 of the cover body 110 from being penetrated.
  • the inner diameter of the side wall 112 of the cover body 110 is D3
  • the straight line L extends along the radial direction of the motor, and the straight line L passes through the two points with the largest radial distance on the stator winding 320, D3 and D4 satisfy, D3 ⁇ D4+ 3mm
  • the radial cross-section of the stator winding 320 is approximately an annular structure. Therefore, there is at least a 1.5mm distance between the stator winding 320 and the side wall 112 of the cover body 110. Within this range, the stator winding 320 cannot easily separate the side walls of the cover body 110. 112 breakdown, thereby ensuring the safety of the motor during operation.
  • the stator winding 320 includes: a first winding part 321 extending out of the first end of the stator core 310 and located in the cover body 110; A plurality of second heat dissipation holes 114 are provided on the side wall 112 of the cover body 110.
  • the minimum distance between the plurality of second heat dissipation holes 114 and the bottom wall 111 of the cover body 110 is smaller than the minimum distance between the first winding part 321 and the bottom wall 111;
  • the maximum distance between the plurality of second heat dissipation holes 114 and the bottom wall 111 is greater than the maximum distance between the first winding part 321 and the bottom wall 111 .
  • the first winding portion 321 protruding from the first end of the stator core 310 is located in the cover body 110 .
  • the minimum distance between the second heat dissipation hole 114 and the bottom wall 111 of the cover body 110 is smaller than the minimum distance between the first winding part 321 and the bottom wall 111 . That is, compared with part of the second heat dissipation hole 114 , the first winding part 321 and the cover body 110 are smaller.
  • the bottom walls 111 of 110 are further apart.
  • the maximum distance between the second heat dissipation hole 114 and the bottom wall 111 of the cover body 110 is greater than the maximum distance between the first winding part 321 and the bottom wall 111 .
  • part of the second heat dissipation hole 114 and the cover body 110 are smaller.
  • the distance between the bottom walls 111 is larger. It can be seen that the two axial ends of the first winding part 321 are located corresponding to the positions where the second heat dissipation holes 114 are provided on the side wall 112 of the cover body 110, ensuring that the heat generated by the stator winding 320 can quickly pass through the second heat dissipation holes.
  • 114 performs heat exchange with the outside to further improve the heat dissipation effect of the cover body 110 .
  • the number of cover bodies 110 is two, and the two cover bodies 110 are located on both sides of the stator 300 in the axial direction.
  • the stator winding 320 extends out of both ends of the stator core 310 , wherein the stator winding 320 includes a first winding part 321 and a second winding part 322 , and the first winding part 321 extends out of the second end of the stator core 310 . At one end, the second winding portion 322 extends out of the second end of the stator core 310 .
  • the electrode includes a cover body 110 and a cast cover, and the cover body 110 and the cast cover are located on both sides of the stator 300 in the axial direction,
  • connection means two or more than two, unless otherwise expressly limited.
  • connection can be a fixed connection, a detachable connection, or an integral connection; “connection” can be Either directly or indirectly through an intermediary.
  • connection can be Either directly or indirectly through an intermediary.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

La présente invention concerne un moteur, comprenant : un corps de couvercle (110), le corps de couvercle (110) comprenant une paroi inférieure (111) et une paroi latérale (112), la paroi latérale (112) étant reliée à la paroi inférieure (111), une cavité étant définie par la paroi latérale (112) et la paroi inférieure (111), et la paroi inférieure (111) comportant des premiers trous de dissipation de chaleur (113) en communication avec la cavité ; une partie d'étirement (120), reliée au corps de couvercle (110) ; un corps de palier (130), relié à la partie d'étirement (120), la partie d'étirement (120) étant fixée dans le sens axial du moteur à la paroi externe du corps de palier (130) ; un arbre rotatif (600), l'arbre rotatif (600) passant à travers le corps de palier (130) ; un stator (300), relié au corps de couvercle (110) ; et un rotor (400), manchonnant l'arbre rotatif (600), le diamètre interne du corps de palier (130) étant D1, la somme des épaisseurs de paroi de la partie d'étirement (120) et du corps de palier (130) étant T, la distance minimale entre la paroi latérale interne d'un premier trou de dissipation de chaleur (113) et l'axe du corps de palier (130) étant A, et A ≥ D1/2 + T. La partie d'étirement (120) est fixée à la paroi externe du corps de palier (130) de façon à se rapprocher autant que possible de l'axe du corps de couvercle (110). Ainsi, les premiers trous de dissipation de chaleur (113) sur le corps de couvercle (110) peuvent se rapprocher autant que possible de l'axe du corps de couvercle (110), de telle sorte qu'un échange de chaleur peut être rapidement réalisé entre la chaleur autour du rotor (400) et l'extérieur par l'intermédiaire des premiers trous de dissipation de chaleur (113).
PCT/CN2023/078723 2022-06-30 2023-02-28 Moteur WO2024001258A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210760110 2022-06-30
CN202210760110.2 2022-06-30
CN202210790662.8 2022-07-06
CN202210790662.8A CN115118061A (zh) 2022-06-30 2022-07-06 电机

Publications (1)

Publication Number Publication Date
WO2024001258A1 true WO2024001258A1 (fr) 2024-01-04

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PCT/CN2023/078723 WO2024001258A1 (fr) 2022-06-30 2023-02-28 Moteur

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WO (1) WO2024001258A1 (fr)

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DE102018206138A1 (de) * 2018-04-20 2019-10-24 Em-Motive Gmbh Gehäuse eines Elektromotors
WO2021116040A1 (fr) * 2019-12-09 2021-06-17 Valeo Equipements Electriques Moteur Flasque pour machine électrique tournante
CN113794329A (zh) * 2021-10-22 2021-12-14 佛山市威灵洗涤电机制造有限公司 一种电机
CN115118061A (zh) * 2022-06-30 2022-09-27 淮安威灵电机制造有限公司 电机

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CN203135620U (zh) * 2013-02-02 2013-08-14 林条活 一种电机外壳
CN204835757U (zh) * 2015-07-04 2015-12-02 中山大洋电机股份有限公司 一种外转子电机及应用其的风机
DE102018206138A1 (de) * 2018-04-20 2019-10-24 Em-Motive Gmbh Gehäuse eines Elektromotors
WO2021116040A1 (fr) * 2019-12-09 2021-06-17 Valeo Equipements Electriques Moteur Flasque pour machine électrique tournante
CN113794329A (zh) * 2021-10-22 2021-12-14 佛山市威灵洗涤电机制造有限公司 一种电机
CN115118061A (zh) * 2022-06-30 2022-09-27 淮安威灵电机制造有限公司 电机

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