Wiring board, stator assembly and motor

Abstract

The utility model discloses a wiring board, a stator assembly and a motor, and the wiring board comprises a body which is provided with an oil guide hole penetrating through the body along the radial direction of a stator, and is suitable for being located at the radial outer side of a winding of the stator; the connecting assembly is suitable for being connected with the winding and arranged on the body, and the body is used for fixing the connecting assembly. According to the wiring board provided by the utility model, cooling oil flows to the winding shielded by the body through the oil guide holes, so that local overheating of the winding is avoided, the overall cooling effect of the winding is ensured, and the overall performance and operation reliability of a stator and a motor are improved. And meanwhile, the arrangement position of the oil guide hole can guide the cooling oil to the position where the winding needing to be cooled is located, accurate cooling is achieved, and the cooling effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a terminal block, stator assembly and motor. Background Technology

[0002] Terminal blocks, as an important component of motors, are used to transmit current from external power sources to the stator windings. However, during the process of cooling the windings by spraying oil from the oil injection pipe, some windings are blocked by the terminal blocks, preventing the cooling oil from being directly sprayed onto the windings. This results in localized overheating of the windings, affecting the overall performance and operational reliability of the motor. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a terminal block that effectively prevents localized overheating of the windings, ensures overall cooling of the windings, and improves the overall performance and operational reliability of the stator and motor.

[0004] This utility model also proposes a stator assembly, which includes the aforementioned terminal block.

[0005] This utility model also proposes an electric motor, which includes the stator assembly described above.

[0006] According to an embodiment of the present invention, a terminal block for a stator includes: a body having an oil guide hole extending through the body in the radial direction of the stator, the body being adapted to be located radially outside the winding of the stator; and a connecting assembly adapted to be connected to the winding and disposed on the body, the body being used to fix the connecting assembly.

[0007] According to the embodiment of this utility model, the terminal block is adapted to connect with the windings and is disposed on the body via a connecting component. The body is used to fix the connecting component so that the current from the external power supply is transmitted to the windings through the connecting component. The body has an oil guide hole that penetrates the body along the radial direction of the stator. The body is adapted to be located radially outside the windings of the stator, so that cooling oil flows through the oil guide hole to the windings blocked by the body, thereby preventing localized overheating of the windings and ensuring the overall cooling effect of the windings, improving the overall performance and operational reliability of the stator and motor. Simultaneously, the location of the oil guide hole can guide the cooling oil to the location of the windings that require cooling, achieving precise cooling and improving the cooling effect.

[0008] In some embodiments of this utility model, there are multiple oil guide holes, and the multiple oil guide holes are spaced apart along the circumferential direction of the stator.

[0009] In some embodiments of this utility model, the body has an oil guide groove on the side opposite to the winding along the radial direction of the stator, and the oil guide hole is provided on the bottom wall of the oil guide groove.

[0010] In some embodiments of this utility model, the body includes: a first block, on which the oil guide hole is located; and a second block, which is disposed opposite to the first block along the radial direction of the stator.

[0011] In some embodiments of this utility model, the first block extends along the circumferential direction of the stator; and / or, the second block extends along the circumferential direction of the stator.

[0012] In some embodiments of this utility model, the body further includes at least one third block, which is located between the first block and the second block and is spaced apart from the first block and the second block along the circumferential direction of the stator.

[0013] In some embodiments of this utility model, there are multiple third blocks, which are arranged and spaced apart along the circumferential direction of the stator.

[0014] In some embodiments of this utility model, the connecting component includes: a connecting terminal connected to the body; and a connecting wire, the two ends of which are respectively connected to the connecting terminal and the winding, and the connecting wire is connected to the body.

[0015] A stator assembly according to an embodiment of the present invention includes: a stator, the stator including a stator core and a winding, the winding being wound around the stator core; the aforementioned terminal block, the body of which is located radially outside the winding, and the connecting assembly being connected to the winding.

[0016] According to an embodiment of this utility model, the stator assembly includes a terminal block. The stator comprises a stator core and windings. The windings are wound around the stator core and connected to the windings via a connecting assembly. This allows current from an external power supply to be transmitted to the windings through the connecting assembly. The body has an oil guide hole extending radially through the body. The body is adapted to be located radially outside the windings of the stator, allowing cooling oil to flow through the oil guide hole to the windings blocked by the body. This prevents localized overheating of the windings, ensuring overall cooling of the windings and improving the overall performance and operational reliability of the stator and motor. Furthermore, the location of the oil guide hole directs the cooling oil to the windings that require more cooling, achieving precise cooling and improving the cooling effect.

[0017] In some embodiments of this utility model, it further includes: a first oil injection pipe, which is arranged opposite to the body along the radial direction of the stator, and the oil guide hole is used to guide the cooling oil injected from the first outlet of the first oil injection pipe to the winding.

[0018] In some embodiments of this utility model, the first fuel injection pipe extends along the axial direction of the stator, and there are multiple first outlets, which are spaced apart along the length direction of the first fuel injection pipe.

[0019] In some embodiments of this utility model, there are one or more first fuel injection pipes. When there are multiple first fuel injection pipes, the multiple first fuel injection pipes are spaced apart along the circumferential direction of the stator.

[0020] In some embodiments of this utility model, it further includes: a second oil injection pipe, which is located along the circumferential direction of the stator and is offset from the body, and is used to supply oil to the winding.

[0021] In some embodiments of this utility model, it further includes: a star point plate, which is located along the axial direction of the stator on the side of the terminal block away from the stator core, and the star point plate is connected to the winding.

[0022] The motor according to an embodiment of the present invention includes the stator assembly described above.

[0023] According to an embodiment of the present invention, a stator assembly is provided in the motor. The stator assembly includes a stator and a terminal block. The stator includes a stator core and windings. The windings are wound around the stator core and connected to the windings through a connecting assembly. This allows the current from an external power supply to be transmitted to the windings through the connecting assembly. The motor body has an oil guide hole that penetrates the body radially. The body is adapted to be located radially outside the windings of the stator, allowing cooling oil to flow through the oil guide hole to the windings blocked by the body. This prevents localized overheating of the windings, ensures overall cooling of the windings, and improves the overall performance and operational reliability of the motor. Simultaneously, the location of the oil guide hole can direct the cooling oil to the windings that require more cooling, achieving precise cooling and improving the cooling effect.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a structural diagram of the wiring board according to an embodiment of the present utility model;

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a structural diagram of the wiring board and star point board according to an embodiment of the present utility model;

[0029] Figure 4 yes Figure 3 Enlarged view at point B in the middle;

[0030] Figure 5 This is a structural diagram of the stator assembly according to an embodiment of the present utility model, wherein the first fuel injection pipe and the second fuel injection pipe are not shown;

[0031] Figure 6 yes Figure 5 Enlarged view at point C;

[0032] Figure 7 This is a structural diagram of the stator assembly according to an embodiment of the present utility model;

[0033] Figure 8 yes Figure 7 Enlarged view at point D;

[0034] Figure 9 This is a front view of the stator assembly according to an embodiment of the present utility model;

[0035] Figure 10 This is a side view of the stator assembly according to an embodiment of the present utility model.

[0036] Figure label:

[0037] 1000, Stator assembly;

[0038] 100. Power strip;

[0039] 11. Body; 111. First piece; 1111. Oil guide hole; 1112. Oil guide groove; 112. Second piece; 113. Third piece; 12. Connecting assembly; 121. Connecting terminal; 122. Connecting wire;

[0040] 200. Stator;

[0041] 21. Winding; 22. Iron core;

[0042] 300. First fuel injection pipe;

[0043] 400. Second fuel injection pipe;

[0044] 500, Starry Dot Board. Detailed Implementation

[0045] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The wiring board 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0049] like Figures 1-6 As shown, the wiring board 100 according to an embodiment of the present utility model is used for the stator 200.

[0050] The terminal block 100 includes a body 11 and a connecting assembly 12. The connecting assembly 12 is adapted to connect to the winding 21 and is disposed on the body 11. The body 11 is used to fix the connecting assembly 12. It is understood that the stator 200 includes a winding 21 and a stator core 22. The winding 21 is wound on the stator 200 and connected to the terminal of the winding 21 through the connecting assembly 12, so that the current of the external power supply can be transmitted to the winding 21 through the connecting assembly 12. When the current passes through the winding 21, a magnetic field is generated around the stator core 22 that interacts with the magnetic field of the rotor, thereby driving the motor to run.

[0051] Meanwhile, the main body 11 fixes the connecting component 12, so that the main body 11 provides support for the connecting component 12, effectively preventing the connecting component 12 from loosening or falling off due to external forces such as vibration and impact during long-term use, thereby reducing the occurrence of electrical faults and ensuring the normal operation of the stator 200 using the terminal block 100.

[0052] Furthermore, the terminal block 100 is an insulated component, thereby further ensuring electrical safety. Optionally, the terminal block 100 is made of plastic, which reduces costs while achieving insulation.

[0053] The body 11 has an oil guide hole 1111 that extends through the body 11 in the radial direction of the stator 200, and the body 11 is adapted to be located on the radial outer side of the winding 21 of the stator 200. It is understandable that the oil spray pipe for spraying cooling oil onto the winding 21 is located radially outside the winding 21, along the circumferential direction of the stator 200. The cooling oil can be directly sprayed onto the winding 21, which is offset from the body 11, to cool down the winding 21. Meanwhile, the winding 21, which is set opposite to the body 11 in the circumferential direction of the stator 200 and is blocked by the body 11, is connected to the winding 21 in the stator 200 by an oil guide hole 1111 located radially outside the winding 21 and having a guide hole 1111 that penetrates the body 11 in the radial direction of the stator 200. This allows the cooling oil to flow through the guide hole 1111 to the winding 21 blocked by the body 11, thereby cooling down the blocked winding 21. This prevents local overheating of the winding 21, ensures the overall cooling effect of the winding 21, and improves the overall performance and operational reliability of the stator 200 and the motor. Meanwhile, the location of the oil guide hole 1111 can guide the cooling oil to the location of the winding 21 that needs cooling more, so as to achieve precise cooling and improve the cooling effect.

[0054] Thus, by setting up the terminal block 100, the functionality of the terminal block 100 is increased. While the terminal block 100 transmits the current from the external power supply to the winding 21, it also guides the cooling oil to flow to the local overheated area of ​​the winding 21.

[0055] According to an embodiment of the present invention, the terminal block 100 is adapted to be connected to the winding 21 and disposed on the body 11 via a connecting component 12. The body 11 is used to fix the connecting component 12 so that the current from the external power supply is transmitted to the winding 21 through the connecting component 12. The body 11 has an oil guide hole 1111 that penetrates the body 11 in the radial direction of the stator 200. The body 11 is adapted to be located radially outside the winding 21 of the stator 200 so that the cooling oil flows through the oil guide hole 1111 to the winding 21 that is blocked by the body 11, thereby avoiding local overheating of the winding 21, ensuring the overall cooling effect of the winding 21, and improving the overall performance and operational reliability of the stator 200 and the motor. At the same time, the setting position of the oil guide hole 1111 can guide the cooling oil to the location of the winding 21 that needs cooling more, achieving precise cooling and improving the cooling effect.

[0056] In some embodiments of this utility model, such as Figure 1 , Figure 4 and Figure 6 As shown, the connection assembly 12 includes a connection terminal 121 and a connection wire 122. The connection terminal 121 is connected to the body 11, and the two ends of the connection wire 122 in the length direction are connected to the connection terminal 121 and the winding 21, respectively. The connection wire 122 is also connected to the body 11.

[0057] Understandably, the body 11 is used to fix the connecting terminal 121 and the connecting wire 122, providing support and stability for the connecting terminal 121 and the connecting wire 122 respectively. This effectively prevents the connecting assembly 12 from loosening or falling off due to external forces such as vibration and impact during long-term use, reducing the occurrence of electrical faults. Simultaneously, the two ends of the connecting wire 122 are connected to the connecting terminal 121 and the winding 21 respectively, and the end of the connecting terminal 121 furthest from the connecting wire 122 is connected to an external power source, so that the current from the external power source can be sequentially transmitted to the winding 21 through the connecting terminal 121 and the connecting wire 122.

[0058] Specifically, the connection terminal 121 includes a U-phase terminal, a V-phase terminal, and a W-phase terminal, and the connection line 122 includes a U-phase line, a V-phase line, and a W-phase line. The two ends of the U-phase line along its length are respectively connected to the terminals of the U-phase terminal and the U-phase winding. The two ends of the V-phase line along its length are respectively connected to the terminals of the V-phase terminal and the V-phase winding. The two ends of the W-phase line along its length are respectively connected to the terminals of the W-phase terminal and the W-phase winding, so that the three-phase current is transmitted to the corresponding winding 21 through the corresponding terminals and the connection line 122, thereby realizing the transmission of current and the excitation of magnetic field.

[0059] In some embodiments of this utility model, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 and Figure 9As shown, there are multiple oil guide holes 1111, which are spaced apart along the circumferential direction of the stator 200. Thus, by having multiple oil guide holes 1111 spaced apart along the circumferential direction of the stator 200, cooling oil can flow through these holes to the winding 21 that is blocked by the body 11, further cooling the blocked winding 21 and preventing localized overheating of the winding 21, thus ensuring a good overall cooling effect on the winding 21.

[0060] In some embodiments of this utility model, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 and Figure 9 As shown, the main body 11 has an oil guide groove 1112 on the side of the stator 200 facing away from the winding 21 in the radial direction, and an oil guide hole 1111 is provided on the bottom wall of the oil guide groove 1112. It can be understood that this arrangement allows the cooling oil flowing from the injection pipe to flow into the oil guide groove 1112, and then into the oil guide hole 1111, before flowing to the winding 21 which is blocked by the main body 11, thus cooling the winding 21. Simultaneously, the oil guide groove 1112 acts as a buffer zone, allowing the cooling oil to accumulate and stabilize within it before flowing to the winding 21 through the oil guide hole 1111, optimizing the flow path of the coolant and ensuring a smoother and more uniform flow.

[0061] In some embodiments of this utility model, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 and Figure 9 As shown, the main body 11 has an oil guide groove 1112 on the side of the stator 200 away from the winding 21 in the radial direction. Multiple oil guide holes 1111 are located on the bottom wall of the oil guide groove 1112 and are spaced apart along the circumferential direction of the stator 200. Therefore, the size of the oil guide groove 1112 and the number of guide holes can be adjusted according to the position of the main body 11 and the size of the winding 21 it blocks, thereby further optimizing the cooling oil flow path and ensuring the cooling effect on the blocked winding 21.

[0062] In some embodiments of this utility model, such as Figures 1-6As shown, the main body 11 includes a first block 111 and a second block 112. The oil guide hole 1111 is located on the first block 111, and the second block 112 and the first block 111 are arranged opposite each other along the radial direction of the stator 200. It can be understood that both the first block 111 and the second block 112 are used to fix the connecting assembly 12. When the terminal block 100 is applied to the motor, the first block 111 is located above the second block 112. The winding 21 arranged opposite to the first block 111 in the circumferential direction of the stator 200 is defined as the first sub-winding, and the winding 21 arranged opposite to the second block 112 in the circumferential direction of the stator 200 is defined as the second sub-winding. The first and second sub-windings are arranged opposite each other in the radial direction of the stator 200. Cooling oil flows through the oil guide hole 1111 to the first sub-winding and then flows to the second sub-winding under gravity, thereby achieving cooling of both the first and second sub-windings.

[0063] Meanwhile, since the main body 11 is located radially outside the winding 21 of the stator 200, the second block 112 is located radially outside the second sub-winding. The cooling oil flowing through the second sub-winding flows to the second block 112, allowing the cooling oil to flow along the surface of the second block 112, so that the cooling oil can more evenly and effectively cover the second sub-winding, improving the cooling effect. In addition, the motor housing has an oil collection port located at the lowest point of the housing. The cooling oil flowing through the winding 21 flows out of the housing through the oil collection port. When there is a lot of cooling oil in the housing, the second sub-winding is immersed in the cooling oil, thereby further improving the cooling effect.

[0064] In some embodiments, such as Figure 2 As shown, an oil guide groove 1112 is provided on the first block 111, and the oil guide groove 1112 opens in a direction away from the second block 112. Multiple oil guide holes 1111 are spaced apart on the bottom wall of the oil guide groove 1112. Thus, the cooling oil flowing from the injection pipe can flow into the oil guide groove 1112, and then flow through the oil guide groove 1112 to the multiple oil guide holes 1111. The coolant in the multiple oil guide holes 1111 flows to the first sub-winding and then to the second sub-winding.

[0065] In some embodiments, such as Figures 1-6 and Figure 10As shown, the connecting assembly 12 includes a connecting terminal 121 and a connecting wire 122. The connecting terminal 121 is connected to the body 11, and the two ends of the connecting wire 122 along its length are connected to the connecting terminal 121 and the winding 21, respectively. The connecting wire 122 is also connected to the body 11. It can be understood that since the first block 111 is located above the second block 112, the first block 111 is used to fix the connecting terminal 121, and both the first block 111 and the second block 112 are used to fix the connecting wire 122. Simultaneously, the first block 111 and the second block 112 provide support for the end of the connecting wire 122 away from the connecting terminal 121, facilitating the connection of the connecting wire 122 away from the connecting terminal 121 to the terminal of the winding 21, thus reducing assembly difficulty.

[0066] In some embodiments of this utility model, such as Figure 2 and Figure 6 As shown, the first block 111 extends circumferentially along the stator 200. This arrangement ensures that the first block 111 supports the connecting assembly 12, and that the oil guide grooves 1112 and oil guide holes 1111 on the first block 111 can guide the cooling oil to the location of the winding 21 that needs cooling more, thereby achieving precise cooling and improving the cooling effect.

[0067] In some embodiments of this utility model, such as Figure 2 and Figure 6 As shown, the second block 112 extends along the circumferential direction of the stator 200. Therefore, as the cooling oil flows along the surface of the second block 112, this arrangement ensures a more uniform distribution of the cooling oil around the stator 200 winding 21, further improving cooling efficiency, and also ensuring the second block 112 supports the connecting assembly 12, thus improving overall reliability.

[0068] In some embodiments of this utility model, such as Figure 1 and Figure 10 As shown, the body 11 also includes at least one third block 113. Along the circumferential direction of the stator 200, the third block 113 is located between the first block 111 and the second block 112 and is spaced apart from the first block 111 and the second block 112. Thus, the third block 113 further supports and fixes the connecting assembly 12. At the same time, by spaced apart from the first block 111 and the second block 112, a portion of the winding 21 can be offset from the body 11 in the circumferential direction of the stator 200, so that the cooling oil sprayed by the oil injection pipe can be directly sprayed onto a portion of the winding 21.

[0069] In some embodiments of this utility model, such as Figure 1 and Figure 10As shown, there are multiple third blocks 113, which are arranged and spaced apart along the circumferential direction of the stator 200. Thus, the multiple third blocks 113 further support and fix the connecting assembly 12. Simultaneously, by arranging and spacing the multiple third blocks 113 along the circumferential direction of the stator 200, some windings 21 can be offset from the main body 11 in the circumferential direction of the stator 200, allowing the cooling oil sprayed from the oil injection pipe to be directly sprayed onto some windings 21.

[0070] Specifically, the multiple third blocks 113 support the ends of the multiple connecting wires 122 away from the connecting terminal 121, making it easier for the connecting wires 122 to connect to the terminals of the winding 21 away from the connecting terminal 121, thus reducing assembly difficulty.

[0071] The stator assembly 1000 of this utility model is described below according to an embodiment.

[0072] like Figures 1-10 As shown, the stator assembly 1000 according to an embodiment of the present invention includes a stator 200 and a terminal block 100. The stator 200 includes a stator core 22 and a winding 21. The winding 21 is wound around the stator core 22. The body 11 is located on the radial outer side of the winding 21. The connecting assembly 12 is connected to the winding 21.

[0073] Thus, by connecting the terminal of the connecting component 12 to the winding 21, the current from the external power supply can be transmitted to the winding 21 through the connecting component 12. When the current passes through the winding 21, a magnetic field that interacts with the magnetic field of the rotor is generated around the stator core 22, thereby driving the motor to run.

[0074] Meanwhile, the body 11 is located radially outside the winding 21 of the stator 200 and has an oil guide hole 1111 that penetrates the body 11 radially. This allows cooling oil to flow through the oil guide hole 1111 to the winding 21 that is blocked by the body 11, thus cooling the blocked winding 21 and preventing localized overheating. This ensures effective cooling of the entire winding 21, improving the overall performance and operational reliability of the stator 200 and the motor. Furthermore, the location of the oil guide hole 1111 can direct the cooling oil to the winding 21 that requires more cooling, achieving precise cooling and improving the overall cooling effect.

[0075] According to the stator assembly 1000 of this utility model embodiment, a terminal block 100 is provided. The stator 200 includes a stator core 22 and a winding 21. The winding 21 is wound around the stator core 22 and connected to the winding 21 through a connecting assembly 12, so that the current from the external power supply is transmitted to the winding 21 through the connecting assembly 12. The body 11 has an oil guide hole 1111 that penetrates the body 11 in the radial direction of the stator 200. The body 11 is adapted to be located radially outside the winding 21 of the stator 200, so that the cooling oil flows through the oil guide hole 1111 to the winding 21 that is blocked by the body 11, thereby avoiding local overheating of the winding 21, ensuring the overall cooling effect of the winding 21, and improving the overall performance and operational reliability of the stator 200 and the motor. At the same time, the setting position of the oil guide hole 1111 can guide the cooling oil to the location of the winding 21 that needs to be cooled more, achieving precise cooling and improving the cooling effect.

[0076] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the stator assembly 1000 also includes a first oil injection pipe 300. The first oil injection pipe 300 is disposed opposite to the body 11 along the radial direction of the stator 200, and an oil guide hole 1111 is used to guide the cooling oil ejected from the first outlet of the first oil injection pipe 300 to the winding 21. Thus, this arrangement allows the cooling oil ejected from the first outlet of the first oil injection pipe 300 to be guided to the winding 21 through the guide hole, thereby achieving cooling of the winding 21.

[0077] In some embodiments of this utility model, the first oil injection pipe 300 extends along the axial direction of the stator 200, and there are multiple first outlets. The multiple first outlets are spaced apart along the length direction of the first oil injection pipe 300. Thus, by such arrangement, the amount of cooling oil guided to the winding 21 through the guide hole is increased, and the heat dissipation effect on the winding 21 is further improved.

[0078] In some embodiments, such as Figure 8 and Figure 9 As shown, the main body 11 has an oil guide groove 1112 on the side of the stator 200 facing away from the winding 21 in the radial direction, and an oil guide hole 1111 is provided on the bottom wall of the oil guide groove 1112. This arrangement allows the cooling oil ejected from the multiple first outlets of the first oil injection pipe 300 to flow into the oil guide groove 1112, and the cooling oil in the oil guide groove 1112 flows to the winding 21 through the oil guide hole 1111, further improving the cooling effect.

[0079] In some embodiments of this utility model, such as Figure 7 and Figure 8As shown, there are one or more first oil injection pipes 300. When there are multiple first oil injection pipes 300, they are spaced apart along the circumferential direction of the stator 200. Therefore, one or more first oil injection pipes 300 can be set according to the cooling requirements of the winding 21 and the size of the body 11, thereby meeting the needs of different stator assemblies 1000 and motors. Furthermore, when there are multiple first oil injection pipes 300, the spaced arrangement of these pipes along the circumferential direction of the stator 200 increases the amount of cooling oil flowing to the winding 21 through the guide holes, further improving the heat dissipation effect on the winding 21.

[0080] In some embodiments, such as Figure 8 and Figure 9 As shown, the main body 11 has an oil guide groove 1112 on the side of the stator 200 facing away from the winding 21 in the radial direction. Oil guide holes 1111 are located on the bottom wall of the oil guide groove 1112. Multiple first oil injection pipes 300 are spaced apart in the circumferential direction of the stator 200, and second oil injection pipes 400 are used to supply oil to the winding 21. This arrangement allows the cooling oil injected from the multiple first oil injection pipes 300 to flow into the oil guide groove 1112, and the cooling oil in the oil guide groove 1112 flows to the winding 21 through the oil guide holes 1111, further improving the cooling effect.

[0081] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the stator assembly 1000 also includes a second oil injection pipe 400. The second oil injection pipe 400 is offset from the body 11 along the circumferential direction of the stator 200. Therefore, because the second oil injection pipe 400 is offset from the body 11, the cooling oil sprayed from the second oil injection pipe 400 can be directly sprayed onto the winding 21, thereby achieving cooling of the winding 21.

[0082] Furthermore, the second fuel injection pipe 400 extends along the axial direction of the stator 200, and the second fuel injection pipe 400 has multiple second outlets, which are spaced apart along the length of the second fuel injection pipe 400. This arrangement increases the amount of oil sprayed onto the winding 21, further improving the heat dissipation effect on the winding 21.

[0083] In some embodiments of this utility model, such as Figures 3-10 As shown, the stator assembly 1000 also includes a star point plate 500. Along the axial direction of the stator 200, the star point plate 500 is located on the side of the terminal block 100 away from the stator core 22, and is connected to the winding 21. Therefore, during motor operation, the star point plate 500 can appropriately adjust the motor's output current and voltage, thereby maintaining motor stability and improving reliability.

[0084] The motor of an embodiment of this utility model is described below.

[0085] The motor according to an embodiment of the present invention includes a stator assembly 1000.

[0086] According to an embodiment of the present invention, a stator assembly 1000 is provided in the motor. The stator assembly 1000 includes a stator 200 and a terminal block 100. The stator 200 includes a stator core 22 and a winding 21. The winding 21 is wound around the stator core 22 and connected to the winding 21 through a connecting assembly 12, so that the current from the external power supply is transmitted to the winding 21 through the connecting assembly 12. The body 11 has an oil guide hole 1111 that penetrates the body 11 radially along the stator 200. The body 11 is adapted to be located radially outside the winding 21 of the stator 200, so that the cooling oil flows through the oil guide hole 1111 to the winding 21 that is blocked by the body 11, thereby avoiding local overheating of the winding 21, ensuring the overall cooling effect of the winding 21, and improving the overall performance and operational reliability of the motor. At the same time, the setting position of the oil guide hole 1111 can guide the cooling oil to the location of the winding 21 that needs cooling more, achieving precise cooling and improving the cooling effect.

[0087] The stator assembly 1000, motor, and operation according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A junction box, characterized in that, For the stator (200), including: Body (11), the body (11) having an oil guide hole (1111) extending through the body (11) in the radial direction of the stator (200), the body (11) being adapted to be located on the radially outer side of the winding (21) of the stator (200); A connecting component (12) adapted to be connected to the winding (21) and disposed on the body (11), the body (11) being used to fix the connecting component (12).

2. The terminal block according to claim 1, characterized in that, There are multiple oil guide holes (1111), and the multiple oil guide holes (1111) are spaced apart along the circumferential direction of the stator (200).

3. The terminal block according to claim 1, characterized in that, The body (11) has an oil guide groove (1112) on the side opposite to the winding (21) in the radial direction of the stator (200), and the oil guide hole (1111) is provided on the bottom wall of the oil guide groove (1112).

4. The terminal block according to claim 1, characterized in that, The body (11) includes: The first block (111), wherein the oil guide hole (1111) is located on the first block (111); The second block (112) and the first block (111) are arranged opposite each other in the radial direction of the stator (200).

5. The terminal block according to claim 4, characterized in that, The first block (111) extends along the circumferential direction of the stator (200); And / or, the second block (112) extends in the circumferential direction of the stator (200).

6. The terminal block according to claim 5, characterized in that, The body (11) further includes at least one third block (113) along the circumferential direction of the stator (200), the third block (113) being located between the first block (111) and the second block (112) and spaced apart from the first block (111) and the second block (112).

7. The terminal block according to claim 6, characterized in that, There are multiple third blocks (113), and the multiple third blocks (113) are arranged and spaced apart along the circumferential direction of the stator (200).

8. The terminal block according to claim 1, characterized in that, The connection component (12) includes: A connecting terminal (121) is connected to the body (11); A connecting line (122) is provided, with its two ends along its length connected to the connecting terminal (121) and the winding (21) respectively, and the connecting line (122) is connected to the body (11).

9. A stator assembly, characterized in that, include: Stator (200), the stator (200) includes a stator core (22) and a winding (21), the winding (21) being wound on the stator core (22); According to any one of claims 1-8, the body (11) is located radially outside the winding (21), and the connecting assembly (12) is connected to the winding (21).

10. The stator assembly according to claim 9, characterized in that, Also includes: The first oil injection pipe (300) is arranged in the radial direction of the stator (200) and is opposite to the body (11). The oil guide hole (1111) is used to guide the cooling oil injected from the first outlet of the first oil injection pipe (300) to the winding (21).

11. The stator assembly according to claim 10, characterized in that, The first fuel injection pipe (300) extends along the axial direction of the stator (200), and there are multiple first outlets, which are spaced apart along the length direction of the first fuel injection pipe (300).

12. The stator assembly according to claim 10, characterized in that, There are one or more first fuel injection pipes (300). When there are multiple first fuel injection pipes (300), the multiple first fuel injection pipes (300) are spaced apart along the circumferential direction of the stator (200).

13. The stator assembly according to claim 9, characterized in that, Also includes: The second oil injection pipe (400) is located along the circumferential direction of the stator (200). The second oil injection pipe (400) is offset from the body (11) and is used to supply oil to the winding (21).

14. The stator assembly according to claim 9, characterized in that, Also includes: The star plate (500) is located along the axial direction of the stator (200), on the side of the terminal block (100) away from the stator core (22), and the star plate (500) is connected to the winding (21).

15. An electric motor, characterized in that, Includes the stator assembly according to any one of claims 9-14.

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