Motor

Abstract

The utility model discloses a motor, which comprises a shell, and a first liquid inlet flow channel is formed in the shell; the motor comprises a stator iron core, a rotor iron core and a rotating shaft, the rotating shaft penetrates through the rotor iron core and is fixedly connected with the rotor iron core, a second liquid inlet flow channel and a first liquid outlet flow channel which are communicated with each other are formed in the rotor iron core, the first liquid inlet flow channel is communicated with the second liquid inlet flow channel, and liquid in the first liquid outlet flow channel is suitable for flowing to a stator winding on the stator iron core. Liquid cools the shell when flowing through the first liquid inlet flow channel, cools the rotor core when flowing through the second liquid inlet flow channel and the first liquid outlet flow channel, and cools the stator winding when moving to the stator winding, so that the shell, the rotor core and the stator winding can be cooled according to the motor provided by the utility model; the risk of high temperature in the working process of the motor is avoided, and stable working performance of the motor is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor. Background Art

[0002] In the related art, most of the existing oil-cooled motors only cool the stator windings, which results in poor heat dissipation performance of the motor and affects the stability of the motor's working performance. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a motor that avoids the risk of high temperature during the operation of the motor and ensures stable working performance of the motor.

[0004] The motor according to the utility model comprises:

[0005] A shell body, wherein the shell body is formed with a first liquid inlet channel;

[0006] The stator core, the rotor core and the rotating shaft, the stator core is sleeved on the rotor core, the rotating shaft is passed through the rotor core and fixedly connected to the rotor core, the rotor core is formed with a second liquid inlet flow channel and a first liquid outlet flow channel that are connected, the first liquid inlet flow channel is connected to the second liquid inlet flow channel, and the liquid in the first liquid outlet flow channel is suitable for flowing to the stator winding on the stator core.

[0007] According to the motor of the present invention, the liquid cools the shell when flowing through the first liquid inlet channel, the liquid cools the rotor core when flowing through the second liquid inlet channel and the first liquid outlet channel, and the liquid cools the stator winding when moving to the stator winding. Therefore, the motor according to the present invention can cool the shell, rotor core and stator winding to avoid the risk of high temperature during the operation of the motor and ensure the stable working performance of the motor.

[0008] In some examples of the present invention, the motor further includes: a first liquid spray ring, the first liquid spray ring connects the first liquid inlet channel and the second liquid inlet channel, and the liquid flowing out of the first liquid outlet channel is suitable for flowing to the stator winding.

[0009] In some examples of the present invention, the motor further includes: a second liquid spray ring, the second liquid spray ring is formed with a connected liquid inlet and liquid outlet, the liquid inlet is connected to the first liquid inlet channel, and the liquid outlet corresponds to the stator winding.

[0010] In some examples of the present invention, the motor also includes: a first liquid spray ring and a second liquid spray ring, the first liquid spray ring is connected to the first liquid inlet channel and the second liquid inlet channel, the liquid flowing out from the first liquid outlet channel is suitable for flowing to the stator winding on the stator core, and the second liquid spray ring is formed with a connected liquid inlet and liquid outlet, the liquid inlet is connected to the first liquid inlet channel, and the liquid outlet corresponds to the stator winding.

[0011] In some examples of the present invention, the first liquid spray ring and the second liquid spray ring are both sleeved on the rotating shaft, and along the axial direction of the rotating shaft, the first liquid spray ring and the second liquid spray ring are respectively located at two ends of the rotor core.

[0012] In some examples of the present utility model, the first liquid spray ring includes: a first main body and a second main body, the first main body is fixed to the shell and sleeved on the second main body, the first main body and the second main body can rotate relative to each other, the second main body is sleeved on the rotating shaft and fixed to the rotating shaft, the first main body and the second main body jointly define a first connecting flow channel, the flow channel inlet of the first connecting flow channel is connected to the first liquid inlet flow channel, and the flow channel outlet of the first connecting flow channel is connected to the second liquid inlet flow channel.

[0013] In some examples of the present invention, the first body is formed with a first assembly hole, the second body is assembled in the first assembly hole, a seal is provided between the inner wall of the first assembly hole and the outer peripheral wall of the second body, and the seal is used to seal the gap between the first body and the second body.

[0014] In some examples of the utility model, an outer peripheral wall of the rotating shaft is formed with an assembly rib, the assembly rib is located between the first liquid spray ring and the rotor core, and the assembly rib is formed with a connecting hole, which connects the flow channel outlet and the second liquid inlet channel.

[0015] In some examples of the utility model, the second body is formed with a second assembly hole, the rotating shaft is passed through the second assembly hole, the inner wall of the second assembly hole is formed with a first circumferential limiting portion, the outer wall of the rotating shaft is formed with a second circumferential limiting portion, and the first circumferential limiting portion and the second circumferential limiting portion are limitedly matched.

[0016] In some examples of the utility model, the motor also includes: a first balancing plate, an outer peripheral wall of the rotating shaft is formed with an assembly rib, the assembly rib is located between the first liquid spray ring and the rotor core, the first balancing plate is sleeved on the rotating shaft and is located between the assembly rib and the rotor core, the first balancing plate is fixed to the rotor core and is formed with a liquid throwing channel, the inlet of the liquid throwing channel is connected to the first liquid outlet channel, and the outlet of the liquid throwing channel corresponds to the stator winding.

[0017] In some examples of the present invention, the motor further includes: a second balancing plate, the second balancing plate is located on one side of the rotor core and fixed to the rotor core, the second balancing plate forms a connecting space, and the connecting space connects the second liquid inlet channel and the first liquid outlet channel.

[0018] In some examples of the present invention, a slot structure is formed on the surface of the second balancing plate facing the rotor core, and the slot structure is configured as a communicating space.

[0019] In some examples of the present utility model, a second communicating flow channel is formed in the second liquid spraying ring, and the second communicating flow channel connects the liquid inlet and the liquid outlet.

[0020] In some examples of the present invention, the liquid outlet is formed on the peripheral wall of the second liquid spraying ring.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic diagram of the structure of a motor according to an embodiment of the utility model;

[0024] Figure 2 is a schematic structural diagram of a rotor core according to an embodiment of the utility model;

[0025] Figure 3 is a three-dimensional schematic diagram of a first main body according to an embodiment of the utility model;

[0026] Figure 4 is a cross-sectional view of a first main body according to an embodiment of the utility model;

[0027] Figure 5 It is a three-dimensional schematic diagram of the cooperation between the second body and the sealing member according to an embodiment of the utility model;

[0028] Figure 6 is a cross-sectional view of the cooperation between the second body and the sealing member according to an embodiment of the utility model;

[0029] Figure 7 is a three-dimensional schematic diagram of a rotating shaft according to an embodiment of the utility model;

[0030] Figure 8 is a cross-sectional view of a first balancing board according to an embodiment of the utility model;

[0031] Fig. 9 is a three-dimensional schematic diagram of a second balance board according to an embodiment of the utility model;

[0032] Fig.10 is a three-dimensional schematic diagram of a second liquid spray ring according to an embodiment of the utility model;

[0033] Fig.11 is a cross-sectional view of a second liquid spray ring according to an embodiment of the utility model;

[0034] Fig.12 It is a three-dimensional schematic diagram of a stator core according to an embodiment of the utility model.

[0035] Reference numerals:

[0036] Motor 100;

[0037] Shell 1; first liquid inlet channel 11; assembly space 12;

[0038] stator core 2; cooling flow groove 21; annular groove 21a; axial groove 21b;

[0039] Rotor core 3; second liquid inlet channel 31; first liquid outlet channel 32;

[0040] Rotating shaft 4; mounting rib 41; connecting hole 410; second circumferential limit portion 42,

[0041] First liquid spray ring 51;

[0042] First body 511; first assembly hole 511a;

[0043] The second body 512; the second assembly hole 512a; the first circumferential limiting portion 512b;

[0044] First communication channel 513; channel inlet 513a; channel outlet 513b;

[0045] Seal 514;

[0046] A second liquid spray ring 52; a liquid inlet 521; a liquid outlet 522; a second communication flow channel 523;

[0047] First balance plate 61; liquid inlet channel 61a; liquid outlet channel 61b;

[0048] The second balance plate 62; the communication space 620;

[0049] stator winding 7;

[0050] A first outer liquid spray ring 81; a first flow channel 81a;

[0051] The second outer liquid spray ring 82; the second flow channel 82a. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] Reference below Figure 1-Figure 12The motor 100 according to the embodiment of the present invention is described. The motor 100 can be applied to a vehicle, but the present invention is not limited thereto. The motor 100 can be applied to other equipment that requires the motor 100. For example, the motor 100 can also be applied to equipment such as aircraft or ships.

[0054] like Figure 1 As shown, the motor 100 according to the embodiment of the utility model comprises: a housing 1, a stator core 2, a rotor core 3 and a rotating shaft 4, the housing 1 is formed with a first liquid inlet channel 11, the stator core 2 is sleeved on the rotor core 3, the rotating shaft 4 is penetrated by the rotor core 3 and is fixedly connected to the rotor core 3. Figure 2 As shown, the rotor core 3 is formed with a second liquid inlet channel 31 and a first liquid outlet channel 32 that are connected, the first liquid inlet channel 11 is connected to the second liquid inlet channel 31, and the liquid in the first liquid outlet channel 32 is suitable for flowing to the stator winding 7 on the stator core 2.

[0055] When the liquid flows through the first liquid inlet channel 11, the liquid exchanges heat with the shell 1 to achieve the effect of cooling the shell 1. Then the liquid in the first liquid inlet channel 11 flows through the second liquid inlet channel 31 and the first liquid outlet channel 32 in sequence to cool the rotor core 3. The liquid moves toward the stator winding 7 when flowing through the first liquid outlet channel 32, so that the liquid cools the stator winding 7.

[0056] It should also be noted that the liquid in some of the above embodiments may be a liquid used to cool the motor 100, and the liquid may be a coolant or cooling oil, etc. In some embodiments of the present invention, the liquid used to cool the motor 100 is cooling oil as an example.

[0057] In summary, the motor 100 according to the embodiment of the utility model can cool the housing 1, the rotor core 3 and the stator winding 7 at the same time to avoid the risk of high temperature during the operation of the motor 100 and ensure the stable working performance of the motor 100.

[0058] like Figure 1 As shown, in some embodiments, an assembly space 12 is formed in the housing 1 , and the stator core 2 , the rotor core 3 and the rotating shaft 4 are all assembled in the assembly space 12 .

[0059] like Figure 1 As shown, in some embodiments of the present invention, the motor 100 may further include: a first liquid spray ring 51, the first liquid spray ring 51 connects the first liquid inlet channel 11 and the second liquid inlet channel 31, and the liquid flowing out from the first liquid outlet channel 32 is suitable for flowing to the stator winding 7, so that the liquid cools the stator winding 7.

[0060] In some embodiments, liquid flows from the first liquid inlet channel 11 into the second liquid inlet channel 31 through the first liquid spray ring 51, and then the liquid flows along the second liquid inlet channel 31 into the first liquid outlet channel 32 to achieve the effect of liquid flowing through the rotor core 3. After the liquid flows through the first liquid outlet channel 32, it flows to the stator winding 7 so that the liquid cools the stator winding 7.

[0061] like Figure 1 As shown, in some embodiments, a first liquid inlet channel 11 is formed in the shell wall of the shell 1, and the first liquid inlet channel 11 is connected to the assembly space 12, and when the first liquid spray ring 51 and the rotor core 3 are both assembled at preset positions of the assembly space 12, the first liquid spray ring 51 is connected to the first liquid inlet channel 11 and the second liquid inlet channel 31, so that part of the liquid in the first liquid inlet channel 11 flows through the rotor core 3 through the first liquid spray ring 51, thereby achieving the effect of cooling the rotor core 3, and the liquid moves toward the stator winding 7 after flowing through the rotor core 3 to cool the stator winding 7.

[0062] like Figure 1 As shown, in some embodiments of the utility model, the motor 100 may further include: a second liquid spray ring 52, the second liquid spray ring 52 is formed with a connected liquid inlet 521 and a liquid outlet 522, the liquid inlet 521 is connected to the first liquid inlet channel 11, and the liquid outlet 522 corresponds to the stator winding 7, and the liquid flows toward the stator winding 7 after flowing out of the liquid outlet 522, so that the liquid cools the stator winding 7, thereby achieving a cooling effect on the stator winding 7.

[0063] like Figure 1 As shown, in some embodiments, the second liquid spray ring 52 is assembled in the assembly space 12, and when the second liquid spray ring 52 is assembled in the preset position, the liquid inlet 521 is connected with the first liquid inlet channel 11, so that the liquid in the first liquid inlet channel 11 can flow into the second liquid spray ring 52, and because the liquid outlet 522 corresponds to the stator winding 7, it can also be understood that the liquid outlet 522 is open toward the stator winding 7, so that the liquid flows toward the stator winding 7 after flowing out of the liquid outlet 522, so that the liquid cools the stator winding 7, thereby achieving a cooling effect on the stator winding 7.

[0064] like Figure 1 As shown, in some embodiments of the present invention, the motor 100 may further include: a first liquid spray ring 51 and a second liquid spray ring 52, the first liquid spray ring 51 connecting the first liquid inlet channel 11 and the second liquid inlet channel 31, so that the liquid can flow from the first liquid inlet channel 11 into the second liquid inlet channel 31 through the first liquid spray ring 51, and then the liquid flows from the second liquid inlet channel 31 into the first liquid outlet channel 32, and the liquid flowing out of the first liquid outlet channel 32 is suitable for flowing to the stator winding 7, thereby achieving the effect of cooling the stator winding 7.

[0065] The second liquid spray ring 52 is formed with a connected liquid inlet 521 and a liquid outlet 522. The liquid inlet 521 is connected to the first liquid inlet channel 11, so that the liquid flowing through the first liquid inlet channel 11 can flow into the second liquid spray ring 52 through the liquid inlet 521, and the liquid can flow out from the liquid outlet 522 after flowing through the second liquid spray ring 52, and the liquid outlet 522 corresponds to the stator winding 7, so that the liquid cools the stator winding 7.

[0066] like Figure 1 As shown, in some embodiments of the present invention, the first liquid spray ring 51 and the second liquid spray ring 52 are both sleeved on the rotating shaft 4, and along the axial direction of the rotating shaft 4, the first liquid spray ring 51 and the second liquid spray ring 52 are respectively located at the two ends of the rotor core 3, so that the liquid flows through the first liquid spray ring 51 and the second liquid spray ring 52 respectively and flows to the two ends of the stator winding 7 accordingly, thereby achieving the effect of fully cooling the stator winding 7.

[0067] like Figure 1 As shown, in some embodiments, the stator winding 7 is extended along the axial direction of the stator core 2. Since the stator core 2 is sleeved on the rotor core 3 and the stator core 2 and the rotor core 3 are coaxially arranged, it can also be understood that the stator winding 7 is extended along the axial direction of the rotor core 3.

[0068] In addition, the first liquid spray ring 51 and the second liquid spray ring 52 are respectively located at two ends of the rotor core 3 . It can also be understood that the first liquid spray ring 51 is located at one end of the stator winding 7 , and the second liquid spray ring 52 is located at the other end of the stator winding 7 .

[0069] In some embodiments, after flowing out of the first liquid outlet channel 32, the liquid moves toward the end of the stator winding 7 close to the first liquid spray ring 51, so that the liquid cools the end of the stator winding 7 close to the first liquid spray ring 51. In addition, the liquid outlet 522 corresponds to the end of the stator winding 7 close to the second liquid spray ring 52. After flowing out of the liquid outlet 522, the liquid moves toward the end of the stator winding 7 close to the second liquid spray ring 52, so that the liquid cools the end of the stator winding 7 close to the second liquid spray ring 52. Therefore, according to the motor of the utility model embodiment, along the extension direction of the stator winding 7, the liquid can cool the two ends of the stator winding 7, and cool the stator winding 7 as a whole through the two ends, so that the stator winding 7 is evenly cooled to avoid the risk of high temperature of the stator winding 7.

[0070] Combination Figure 1 and Figure 3-Figure 6As shown, in some embodiments of the present utility model, the first liquid spray ring 51 may include: a first main body 511 and a second main body 512, the first main body 511 is fixed to the shell 1 and is sleeved on the second main body 512, the first main body 511 and the second main body 512 can rotate relatively, the second main body 512 is sleeved on the rotating shaft 4 and fixed to the rotating shaft 4, the first main body 511 and the second main body 512 jointly define a first connecting flow channel 513, the flow channel inlet 513a of the first connecting flow channel 513 is connected to the first liquid inlet flow channel 11, and the flow channel outlet 513b of the first connecting flow channel 513 is connected to the second liquid inlet flow channel 31, so that the first connecting flow channel 513 connects the first liquid inlet flow channel 11 and the second liquid inlet flow channel 31, so that the liquid in the first liquid inlet flow channel 11 can flow into the second liquid inlet flow channel 31 through the first connecting flow channel 513.

[0071] like Figure 1 As shown, in some embodiments, since the first body 511 is fixedly mounted on the shell 1 and the second body 512 is fixedly sleeved on the rotating shaft 4, the first body 511 and the second body 512 are arranged to be relatively rotatable, so that during the rotation of the rotating shaft 4, it is still possible to ensure that the first connecting channel 513 is connected to the first liquid inlet channel 11 and the second liquid inlet channel 31, so that the liquid flows into the second liquid inlet channel 31, thereby achieving the effect of cooling the rotor core 3.

[0072] Combination Figure 1 and Figure 5 As shown, in some embodiments, the flow channel outlet 513b is provided on the second main body 512, and when the second main body 512 and the rotor core 3 are fixedly assembled on the rotating shaft 4, in the axial direction of the second main body 512, the flow channel outlet 513b is located in the second main body 512 and is located on the side close to the rotor core 3, and in the axial direction of the second main body 512, the flow channel outlet 513b corresponds to and is connected with the second liquid inlet channel 31, so that the first connecting flow channel 513 is connected with the second liquid inlet channel 31. In addition, by arranging the flow channel outlet 513b in the second main body 512, it can be ensured that the flow channel outlet 513b is always connected with the second liquid inlet channel 31 during the rotation of the rotor core 3.

[0073] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the first body 511 is formed with a first assembly hole 511a, and the second body 512 is assembled in the first assembly hole 511a. A seal 514 is arranged between the inner wall of the first assembly hole 511a and the outer peripheral wall of the second body 512. The seal 514 is used to seal the gap between the first body 511 and the second body 512, so as to prevent the liquid in the first connecting channel 513 from leaking through the gap between the first body 511 and the second body 512.

[0074] like Figure 3 and Figure 4 As shown, in some embodiments, the main structure of the first body 511 is constructed as a circular ring to form a first assembly hole 511a, and when the second body 512 is assembled in the first assembly hole 511a, in the radial direction of the first spray ring 51, the first body 511 and the second body 512 are relatively arranged to jointly define a first connecting flow channel 513.

[0075] In some embodiments, the first body 511 and / or the second body 512 are equipped with a seal 514, which can also be understood as the seal 514 being assembled on the inner wall of the first assembly hole 511a, or the seal 514 being assembled on the outer peripheral wall of the second body 512, or the inner wall of the first assembly hole 511a and the outer peripheral wall of the second body 512 are both equipped with the seal 514, so that when the first body 511 and the second body 512 are assembled, the seal 514 is arranged between the inner wall of the first assembly hole 511a and the outer peripheral wall of the second body 512, thereby preventing the liquid in the first connecting flow channel 513 from leaking through the gap between the first body 511 and the second body 512. Figure 5 and Figure 6 As shown, in some embodiments of the present invention, taking the assembly of the seal 514 on the outer peripheral wall of the second body 512 as an example, when the first body 511 and the second body 512 are assembled, a seal 514 is provided between the inner wall of the first assembly hole 511a and the outer peripheral wall of the second body 512.

[0076] like Figure 6 As shown, the outer peripheral wall of the second body 512 is formed with a sealing groove recessed toward the inside of the second body 512 along the radial direction of the second body 512 , and the sealing groove is used to assemble the sealing member 514 so that the sealing member 514 is assembled on the outer peripheral wall of the second body 512 .

[0077] In some embodiments, in combination Figure 5 and Figure 6 As shown, the sealing groove can be an annular groove, which extends along the circumference of the second body 512, and in some embodiments, the seal 514 can be constructed as a sealing ring or a sealing strip, etc. The seal 514 is suitable for being assembled in the sealing groove so that when the first body 511 and the second body 512 are assembled together, the seal 514 seals the gap between the inner wall of the first assembly hole 511a and the outer wall of the second body 512.

[0078] like Figure 7 As shown, in some embodiments of the utility model, the outer peripheral wall of the rotating shaft 4 is formed with an assembly rib 41, and the assembly rib 41 is located between the first liquid spray ring 51 and the rotor core 3. The assembly rib 41 is formed with a connecting hole 410, and the connecting hole 410 connects the flow channel outlet 513b and the second liquid inlet channel 31 to achieve the effect of connecting the first connecting flow channel 513 with the second liquid inlet channel 31.

[0079] Combination Figure 1 , Figure 6 and Figure 7 As shown, in some embodiments, along the radial direction of the rotating shaft 4, the assembly rib 41 protrudes from the outer peripheral wall of the rotating shaft 4, and the assembly rib 41 is extended along the circumferential direction of the rotating shaft 4. When the rotating shaft 4 is assembled with the first liquid spray ring 51 and the rotor core 3, in the axial direction of the rotating shaft 4, the assembly rib 41 is located between the first liquid spray ring 51 and the rotor core 3, and along the axial direction of the rotating shaft 4, the assembly rib 41 is formed with a through connecting hole 410, so that in the axial direction of the rotating shaft 4, the connecting hole 410 connects the flow channel outlet 513b and the second liquid inlet flow channel 31, thereby achieving the effect of connecting the first connecting flow channel 513 with the second liquid inlet flow channel 31.

[0080] like Figure 5 and Figure 6 As shown, in some embodiments of the present utility model, the second main body 512 is formed with a second assembly hole 512a, the rotating shaft 4 is passed through the second assembly hole 512a, the inner wall of the second assembly hole 512a is formed with a first circumferential limiting portion 512b, and the outer wall of the rotating shaft 4 is formed with a second circumferential limiting portion 42. The first circumferential limiting portion 512b and the second circumferential limiting portion 42 are limitedly matched so that the second main body 512 can rotate coaxially with the rotating shaft 4 to ensure that the connecting hole 410 is connected with the second liquid inlet channel 31.

[0081] In some embodiments, the first circumferential limiting portion 512b can be configured as one of a limiting boss and a limiting groove, and the second circumferential limiting portion 42 can be configured as the other of the limiting boss and the limiting groove. Figure 5 and Figure 7 As shown, in some embodiments of the utility model, the first circumferential limit portion 512b is configured as a limit boss, and the second circumferential limit portion 42 is configured as a limit groove. The first circumferential limit portion 512b extends along the radial direction of the second main body 512 toward the center of the second assembly hole 512a, so that the first circumferential limit portion 512b is configured as a limit boss, and the second circumferential limit portion 42 is recessed along the radial direction of the rotating shaft 4 toward the axis of the rotating shaft 4, so that the second circumferential limit portion 42 is configured as a limit groove, and when the second main body 512 is sleeved on the rotating shaft 4, at least part of the structure of the first circumferential limit portion 512b is located inside the second circumferential limit portion 42, so that in the circumferential direction of the rotating shaft 4, the second main body 512 and the rotating shaft 4 are limited and matched to achieve the effect that the second main body 512 and the rotating shaft 4 can rotate coaxially.

[0082] like Figure 8As shown, in some embodiments of the utility model, the motor 100 may further include: a first balancing plate 61, an outer peripheral wall of the rotating shaft 4 is formed with an assembly rib 41, the assembly rib 41 is located between the first liquid spray ring 51 and the rotor core 3, the first balancing plate 61 is sleeved on the rotating shaft 4 and is located between the assembly rib 41 and the rotor core 3, the first balancing plate 61 is fixed to the rotor core 3 and is formed with a liquid throwing channel, the inlet of the liquid throwing channel is connected to the first liquid outlet channel 32, and the outlet of the liquid throwing channel corresponds to the stator winding 7, so that the liquid in the first liquid outlet channel 32 moves to the stator winding 7 through the outlet of the liquid throwing channel to achieve the effect of cooling the stator winding 7.

[0083] like Figure 8 As shown, in some embodiments, the first balancing plate 61 may be formed with a liquid inlet channel 61a and a liquid outlet channel 61b, so that when the first balancing plate 61 is fixedly matched with the rotor core 3, the liquid inlet channel 61a, the second liquid inlet channel 31, the first liquid outlet channel 32 and the liquid outlet channel 61b are connected in sequence, and the liquid inlet channel 61a, the second liquid inlet channel 31, the first liquid outlet channel 32 and the liquid outlet channel 61b are connected in sequence to the part constructed as the liquid throwing channel, wherein the liquid inlet channel 61a is set as the inlet of the liquid throwing channel, so as to achieve the effect of connecting the liquid throwing channel with the first liquid outlet channel 32, and the liquid outlet channel 61b is set as the outlet of the liquid throwing channel, so that after the liquid flows through the first liquid outlet channel 32, it moves toward the stator winding 7 through the liquid outlet channel 61b, so that not only can the liquid flowing through the inside of the rotor core 3 be discharged from the inside of the rotor core 3, but also during the rotation of the rotor core 3, the liquid can be thrown to the stator winding 7 to achieve the effect of cooling the stator winding 7.

[0084] like Figure 7 As shown, in some embodiments, the assembly rib 41 is formed with a connecting hole 410, and the first spray ring 51 is formed with a first connecting channel 513 connected to the first liquid inlet channel 11. When the assembly rib 41 is located between the first spray ring 51 and the first balance plate 61, in the axial direction of the rotating shaft 4, the connecting hole 410 connects the channel outlet 513b of the first connecting channel 513 and the liquid inlet channel 61a, so that the liquid can flow along the first liquid inlet channel 11, the first connecting channel 513 and the connecting hole 410 in sequence and then flow into the liquid throwing channel.

[0085] like Fig. 9 As shown, in some embodiments of the present invention, the motor 100 may further include: a second balancing plate 62, the second balancing plate 62 is located on one side of the rotor core 3 and is fixed to the rotor core 3, the second balancing plate 62 forms a connecting space 620, the connecting space 620 connects the second liquid inlet channel 31 and the first liquid outlet channel 32, thereby achieving the effect of connecting the second liquid inlet channel 31 and the first liquid outlet channel 32.

[0086] Combination Figure 1 and Figure 2 As shown, the second liquid inlet channel 31 and the first liquid outlet channel 32 are both extended along the axial direction of the rotor core 3, and when the second balance plate 62 is assembled with the rotor core 3, the connecting space 620 connects the adjacent second liquid inlet channel 31 and one end of the first liquid outlet channel 32. It can also be understood that the connecting space 620 is connected between the second liquid inlet channel 31 and the first liquid outlet channel 32. In the process of liquid flowing through the rotor core 3, in the axial direction of the rotor core 3, the liquid flows along the second liquid inlet channel 31 toward the connecting space 620, and then the liquid flows into the first liquid outlet channel 32 through the connecting space 620, and the liquid flows along the first liquid outlet channel 32 toward the direction away from the connecting space 620.

[0087] like Figure 2 As shown, in some embodiments, the rotor core 3 is formed with a plurality of second liquid inlet channels 31 and a plurality of first liquid outlet channels 32, the plurality of second liquid inlet channels 31 are arranged sequentially along the circumference of the rotor core 3, and two adjacent second liquid inlet channels 31 are spaced apart, and a first liquid outlet channel 32 is provided between two adjacent second liquid inlet channels 31.

[0088] like Fig. 9 As shown, in some embodiments, the second balancing plate 62 is formed with a plurality of connecting spaces 620, each connecting space 620 is used to connect the second liquid inlet channel 31 and the first liquid outlet channel 32 adjacent to each other in the circumferential direction of the rotor core 3, thereby achieving the effect of connecting the adjacent second liquid inlet channel 31 and the first liquid outlet channel 32.

[0089] like Fig. 9 As shown, in some embodiments of the present invention, a slot structure is formed on the surface of the second balancing plate 62 facing the rotor core 3 , and the slot structure is configured as a connecting space 620 .

[0090] Combination Figure 1 and Fig. 9 As shown, in some embodiments, when the second balancing plate 62 is assembled with the rotor core 3, the open end of the slot structure faces the rotor core 3, and in the axial direction of the second balancing plate 62, the slot structure corresponds to the adjacent second liquid inlet channel 31 and the first liquid outlet channel 32. It can also be understood that in the axial direction of the second balancing plate 62, the orthographic projection of the second liquid inlet channel 31 and the orthographic projection of the first liquid outlet channel 32 both coincide with the orthographic projection of the slot structure, so that when the second balancing plate 62 is assembled with the rotor core 3, the slot structure connects the adjacent second liquid inlet channel 31 and the first liquid outlet channel 32, that is, the slot structure is constructed as a connecting space 620, so as to achieve the effect of connecting the corresponding second liquid inlet channel 31 with the first liquid outlet channel 32.

[0091] In some embodiments, a channel structure is formed in the second balancing plate 62, and a channel inlet and a channel outlet are respectively formed at both ends of the channel structure. The channel inlet and the channel outlet are both located on the surface of the second balancing plate 62 facing the rotor core 3. When the second balancing plate 62 is assembled with the rotor core 3, the channel inlet is connected to the second liquid inlet channel 31, and the channel outlet is connected to the first liquid outlet channel 32, so that the channel structure is constructed as a connecting space 620.

[0092] like Fig.10 and Fig.11 As shown, in some embodiments of the utility model, a second connecting flow channel 523 is formed in the second liquid spray ring 52, and the second connecting flow channel 523 connects the liquid inlet 521 and the liquid outlet 522. Part of the liquid in the first liquid inlet flow channel 11 flows into the second connecting flow channel 523 through the liquid inlet 521, and then the liquid flows through the second connecting flow channel 523 and moves to the stator winding 7 through the liquid outlet 522, so as to achieve the effect of cooling the stator winding 7.

[0093] like Fig.10 and Fig.11 As shown, in some embodiments, the liquid outlet 522 is formed on the peripheral wall of the second liquid spray ring 52 , and the liquid outlet 522 is open toward the stator winding 7 so that the liquid moves to the stator winding 7 after being discharged from the liquid outlet 522 , so that the liquid cools the stator winding 7 .

[0094] Combination Figure 1 and Fig.12 As shown, in some embodiments of the utility model, a cooling flow groove 21 is formed on the outer peripheral wall of the stator core 2, and the cooling flow groove 21 is recessed toward the stator core 2. When the stator core 2 is assembled in the assembly space 12, part of the structure of the outer peripheral wall of the stator core 2 abuts against the inner peripheral wall of the assembly space 12, so that the cooling flow groove 21 and the inner peripheral wall of the assembly space 12 jointly define a cooling flow channel, and the cooling flow channel is also connected to the first liquid inlet channel 11.

[0095] like Fig.12 As shown, in some embodiments, the cooling flow channel 21 includes an annular groove 21a and an axial groove 21b, the annular groove 21a extends along the circumference of the stator core 2, the axial groove 21b extends along the axial direction of the stator core 2, and the annular groove 21a and the axial groove 21b are cross-arranged. In the process of liquid flowing through the cooling flow channel, the liquid can pass through the annular groove 21a to flow into the axial groove 21b.

[0096] By providing a cooling groove 21 on the outer peripheral wall of the stator core 2, the cooling groove 21 and the inner peripheral wall of the assembly space 12 jointly define a cooling channel. In the process of liquid flowing through the cooling channel, the liquid in the cooling channel cools the stator core 2 and the housing 1, thereby effectively avoiding the risk of high temperature in the motor 100 during operation. In addition, since the cooling groove 21 and the inner peripheral wall of the assembly space 12 jointly define the cooling channel, there is no need to additionally set up a structure for cooling the stator core 2, thereby making the space layout in the assembly space 12 compact, thereby reducing the overall size of the motor 100.

[0097] like Figure 1 As shown, in some embodiments of the present invention, the motor 100 also includes a first outer liquid spray ring 81 and a second outer liquid spray ring 82, and the first outer liquid spray ring 81 and the second outer liquid spray ring 82 are both assembled in the assembly space 12, and along the axial direction of the stator core 2, the first outer liquid spray ring 81 and the second outer liquid spray ring 82 are respectively located at the two ends of the stator core 2, wherein the first outer liquid spray ring 81 and the first liquid spray ring 51 are located on one side of the stator core 2, and the second outer liquid spray ring 82 and the second liquid spray ring 52 are located on the other side of the stator core 2, and the first outer liquid spray ring 81 and the inner circumferential wall of the stator core 2 and the assembly space 12 jointly define a first flow channel 81a, and the second outer liquid spray ring 82 and the inner circumferential wall of the stator core 2 and the assembly space 12 jointly define a second flow channel 82a, and the first flow channel 81a and the second flow channel 82a are both connected to the first liquid inlet channel 11.

[0098] The first outer spray ring 81 also forms a first spray hole, which is connected to the first flow channel 81a. The second outer spray ring 82 also forms a second spray hole, which is connected to the second flow channel 82a. Along the axial direction of the stator core 2, the first spray hole is open to one end of the stator winding 7, and the second spray hole is open to the other end of the stator winding 7.

[0099] The liquid in the first flow channel 81a moves toward one end of the stator winding 7 through the first spray hole, so that the liquid cools one end of the stator winding 7. The liquid in the second flow channel 82a moves toward the other end of the stator winding 7 through the second spray hole, so that the liquid cools the other end of the stator winding 7, thereby achieving the effect of sufficient and uniform cooling of the stator winding 7.

[0100] like Figure 1As shown, in some embodiments of the utility model, in the radial direction of the stator winding 7, the first spray ring 51 is located on the inner side of the first outer spray ring 81, the second spray ring 52 is located on the side of the second outer spray ring 82, and one end of the stator winding 7 is located between the first spray ring 51 and the first outer spray ring 81, and the other end of the stator winding 7 is located between the second spray ring 52 and the second outer spray ring 82, so that the first spray ring 51 is used to cool the inner periphery of one end of the stator winding 7, the first outer spray ring 81 is used to cool the outer periphery of one end of the stator winding 7, the second spray ring 52 is used to cool the inner periphery of the other end of the stator winding 7, and the second outer spray ring 82 is used to cool the outer periphery of the other end of the stator winding 7, thereby achieving the effect of sufficient and uniform cooling of the stator winding 7.

[0101] In the description of the present invention, it is necessary to understand that the terms "inner", "outer", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0102] In the description of the present invention, "plurality" means two or more.

[0103] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0104] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0106] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A motor, characterized in that: include: A housing, wherein the housing is formed with a first liquid inlet channel; A stator core, a rotor core and a rotating shaft, wherein the stator core is sleeved on the rotor core, the rotating shaft is passed through the rotor core and fixedly connected to the rotor core, the rotor core is formed with a second liquid inlet flow channel and a first liquid outlet flow channel that are connected, the first liquid inlet flow channel is connected to the second liquid inlet flow channel, and the liquid in the first liquid outlet flow channel is suitable for flowing to the stator winding on the stator core.

2. The motor according to claim 1, characterized in that Also includes: A first liquid spray ring is provided, wherein the first liquid spray ring is connected to the first liquid inlet flow channel and the second liquid inlet flow channel, and the liquid flowing out of the first liquid outlet flow channel is suitable for flowing to the stator winding.

3. The motor according to claim 1, characterized in that Also includes: The second liquid spray ring is formed with a liquid inlet and a liquid outlet which are connected, the liquid inlet is connected with the first liquid inlet channel, and the liquid outlet corresponds to the stator winding.

4. The motor according to claim 1, characterized in that Also includes: A first liquid spray ring and a second liquid spray ring, the first liquid spray ring is connected to the first liquid inlet channel and the second liquid inlet channel, the liquid flowing out of the first liquid outlet channel is suitable for flowing to the stator winding, and the second liquid spray ring is formed with a connected liquid inlet and liquid outlet, the liquid inlet is connected to the first liquid inlet channel, and the liquid outlet corresponds to the stator winding.

5. The motor according to claim 4, characterized in that The first liquid spray ring and the second liquid spray ring are both sleeved on the rotating shaft, and along the axial direction of the rotating shaft, the first liquid spray ring and the second liquid spray ring are respectively located at two ends of the rotor core.

6. The motor according to claim 2 or 4, characterized in that: The first liquid spray ring includes: a first main body and a second main body, the first main body is fixed to the shell and sleeved on the second main body, the first main body and the second main body can rotate relatively, the second main body is sleeved on the rotating shaft and fixed to the rotating shaft, the first main body and the second main body jointly define a first connecting flow channel, the flow channel inlet of the first connecting flow channel is connected to the first liquid inlet flow channel, and the flow channel outlet of the first connecting flow channel is connected to the second liquid inlet flow channel.

7. The motor according to claim 6, characterized in that The first body is formed with a first assembly hole, the second body is assembled in the first assembly hole, a seal is provided between the inner wall of the first assembly hole and the outer peripheral wall of the second body, and the seal is used to seal the gap between the first body and the second body.

8. The motor according to claim 6, characterized in that An assembly rib is formed on the outer peripheral wall of the rotating shaft, and the assembly rib is located between the first liquid spray ring and the rotor core. A connecting hole is formed on the assembly rib, and the connecting hole connects the flow channel outlet and the second liquid inlet flow channel.

9. The motor according to claim 6, characterized in that The second body is formed with a second assembly hole, the rotating shaft is passed through the second assembly hole, the inner wall of the second assembly hole is formed with a first circumferential limiting portion, the outer wall of the rotating shaft is formed with a second circumferential limiting portion, and the first circumferential limiting portion and the second circumferential limiting portion are limitedly matched.

10. The motor according to claim 2 or 4, characterized in that: Also includes: A first balancing plate, an outer peripheral wall of the rotating shaft is formed with an assembly rib, the assembly rib is located between the first liquid spray ring and the rotor core, the first balancing plate is sleeved on the rotating shaft and is located between the assembly rib and the rotor core, the first balancing plate is fixed to the rotor core and is formed with a liquid throwing channel, the inlet of the liquid throwing channel is connected to the first liquid outlet channel, and the outlet of the liquid throwing channel corresponds to the stator winding.

11. The motor according to claim 1, characterized in that Also includes: The second balancing plate is located at one side of the rotor core and fixed to the rotor core. The second balancing plate forms a connecting space, and the connecting space connects the second liquid inlet flow channel and the first liquid outlet flow channel.

12. The motor according to claim 11, characterized in that A slot structure is formed on a surface of the second balancing plate facing the rotor core, and the slot structure is configured as the communicating space.

13. The motor according to claim 3 or 4, characterized in that: A second communicating flow channel is formed in the second liquid spray ring, and the second communicating flow channel communicates the liquid inlet and the liquid outlet.

14. The motor according to claim 3 or 4, characterized in that: The liquid outlet is formed on the peripheral wall of the second liquid spraying ring.

Images