Electric connection structure for motor and motor

Abstract

The utility model provides an electrical connection structure used for a motor and the motor, and relates to the technical field of electrical connection structures of motors, the electrical connection structure comprises a busbar assembly, a wire holder and a plurality of electrical connection bars, the busbar assembly comprises a plurality of first connection bars, the plurality of first connecting bars are suitable for being connected with a wire outlet end of a stator winding of the motor, the wire holder comprises a plurality of second connecting bars and a plurality of separators arranged at intervals, and the plurality of first connecting bars, the plurality of second connecting bars and the plurality of electrical connecting bars are arranged in a one-to-one correspondence manner; each electrical connection bar is suitable for being connected between the corresponding first connection bar and the corresponding second connection bar, and a separator is arranged between every two adjacent electrical connection bars, so that every two adjacent electrical connection bars are separated. Therefore, the two adjacent electrical connection bars are separated by the corresponding separators, the insulation of the electrical connection bars is ensured, an insulating sleeve does not need to be added to the electrical connection bars, the space occupation of the electrical connection structure is reduced, and the installation process is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of electrical connection of motors, and more specifically, to an electrical connection structure for a motor and the motor. Background Art

[0002] Motors have broad application prospects and market potential in the field of new energy vehicles. With the rapid development of lightweight and integrated new energy vehicles, people have put forward higher structural requirements for motors.

[0003] In the related technology, the wire diameter of the Y-connected winding armature cable of the current similar main drive motor is thicker, and the ordinary welding and copper braided wire electrical connection structure cannot meet the needs of space limitations, especially the high-power and high-voltage line outlet platform, which needs to ensure both the current carrying capacity and the safety of the insulation system. However, after the ordinary cable crimping nose is assembled, the insulation distance between the cables is limited. To ensure insulation, it is necessary to add an insulating sleeve, which leads to a cramped wiring structure space and difficult installation. Utility Model Content

[0004] The present application provides an electrical connection structure and a motor for a motor, wherein the electrical connection structure is provided with a plurality of spaced-apart partitions on a terminal block so that two adjacent electrical connection rows are separated by corresponding partitions, thereby ensuring the insulation of the electrical connection rows and eliminating the need to add insulating sleeves to the electrical connection rows, thereby helping to reduce the space occupied by the electrical connection structure and simplifying the installation process.

[0005] In a first aspect, an electrical connection structure for a motor is proposed, the electrical connection structure comprising:

[0006] A busbar assembly, the busbar assembly comprising a plurality of first connection bars, each of which is suitable for connecting to an output terminal of a stator winding of a motor;

[0007] A wiring seat, the wiring seat comprising a plurality of second connection rows and a plurality of spacers arranged at intervals;

[0008] Multiple electrical connection rows, multiple first connection rows, multiple second connection rows, and multiple electrical connection rows are all arranged one by one, each electrical connection row is suitable for connecting between the corresponding first connection row and the corresponding second connection row, and a partition is provided between two adjacent electrical connection rows to separate the two adjacent electrical connection rows.

[0009] According to the electrical connection structure of the embodiment of the utility model, the electrical connection structure is separately provided with a bus assembly, a terminal block and a plurality of electrical connection bars, the bus assembly includes a plurality of first connection bars, the terminal block includes a plurality of second connection bars, the plurality of first connection bars, the plurality of second connection bars and the plurality of electrical connection bars are all provided in a one-to-one correspondence, thereby ensuring that each electrical connection bar is suitable for connection between a corresponding first connection bar and a corresponding second connection bar, satisfying the electrical connection function of the electrical connection structure, and at the same time, a plurality of spaced-apart partitions are provided on the terminal block so that two adjacent electrical connection bars are separated by corresponding partitions, thereby ensuring the insulation of the electrical connection bars, and there is no need to add insulating sleeves to the electrical connection bars, which is beneficial to reducing the space occupied by the electrical connection structure and simplifying the installation process.

[0010] According to some examples of the utility model, the electrical connection row includes: a first mounting portion, a second mounting portion and a first connecting portion, the first connecting portion is connected between the first mounting portion and the second mounting portion, the first mounting portion is suitable for fixed connection with the first connection row, the second mounting portion is suitable for fixed connection with the second connection row, and at least part of the first connecting portion is arranged between two adjacent partitions.

[0011] According to some examples of the present invention, the second connection row has a first connection terminal and a second connection terminal, the first connection terminal is connected to the second connection terminal, and there is an angle between the first connection terminal and the second connection terminal, the first connection terminal is suitable for being fixedly connected to the second mounting portion, and the second connection terminal is suitable for being connected to an external power supply.

[0012] According to some examples of the present utility model, the first connecting terminal has a second connecting portion, and the second connecting portion is suitable for being fixedly connected to the second mounting portion through a first fastener;

[0013] The second connection terminal has a third connection portion, and the third connection portion is suitable for connecting to an external power source through a second fastener.

[0014] According to some examples of the utility model, the terminal block also includes: a first shell, the outer surface of the first shell is provided with a plurality of partitions, the first shell is wrapped around the outer surfaces of the plurality of second connection rows, and at least part of the first connection terminal and at least part of the second connection terminal are located outside the first shell.

[0015] According to some examples of the present invention, the first housing has a plurality of first limiting portions arranged corresponding to the first connecting terminals, and the first limiting portions are suitable for abutting and limiting with the second mounting portions of the electrical connection row.

[0016] According to some examples of the present invention, the first housing further includes: a plurality of sealing glue grooves, the plurality of sealing glue grooves correspond one-to-one to the plurality of second connection rows, and the sealing glue grooves are suitable for filling with sealant.

[0017] According to some examples of the utility model, along the radial direction of the stator winding, a plurality of first connection rows have connection row pins on one side close to the stator winding, and the connection row pins are suitable for connecting to the output terminal of the stator winding;

[0018] The first connection row has a connection row body and a third connection terminal, and along the axial direction of the stator winding, the third connection terminal is spaced apart from the connection row body, and the third connection terminal is suitable for being fixedly connected to the first mounting portion through a third fastener.

[0019] According to some examples of the present invention, the busbar assembly further includes: a second housing, the second housing wrapping around the outer surface of the plurality of first connection rows, and at least a portion of the connection row pins and at least a portion of the third connection terminals being located outside the second housing;

[0020] The second housing has a plurality of second limiting portions corresponding to the third connection terminals. The second limiting portions have limiting convex ribs. The limiting convex ribs are suitable for abutting against the first mounting portion of the electrical connection row for limiting.

[0021] In a second aspect, a motor is proposed, comprising the electrical connection structure as in the embodiment of the first aspect.

[0022] According to the motor of the embodiment of the utility model, by setting the above-mentioned electrical connection structure, the electrical connection structure separately sets a bus assembly, a terminal block and a plurality of electrical connection bars, the bus assembly includes a plurality of first connection bars, the terminal block includes a plurality of second connection bars, the plurality of first connection bars, the plurality of second connection bars and the plurality of electrical connection bars are all set in one-to-one correspondence, so as to ensure that each electrical connection bar is suitable for connecting between the corresponding first connection bar and the corresponding second connection bar, thereby satisfying the electrical connection function of the electrical connection structure, and at the same time, a plurality of spaced-apart partitions are set on the terminal block so that two adjacent electrical connection bars are separated by the corresponding partitions, thereby ensuring the insulation of the electrical connection bars, and there is no need to add insulating sleeves to the electrical connection bars, which is beneficial to reducing the space occupied by the electrical connection structure and simplifying the installation process.

[0023] 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

[0024] Figure 1 is a schematic diagram of an electrical connection structure according to an embodiment of the utility model;

[0025] Figure 2 is a schematic diagram of an electrical connection bar according to an embodiment of the utility model;

[0026] Figure 3 A three-dimensional diagram of a wiring socket according to an embodiment of the utility model;

[0027] Figure 4 A top view of a wiring socket according to an embodiment of the utility model;

[0028] Figure 5 is a schematic diagram of a second connecting row according to an embodiment of the utility model;

[0029] Figure 6 is a schematic diagram of a busbar assembly according to an embodiment of the utility model;

[0030] Figure 7 is a schematic diagram of a first connecting row according to an embodiment of the utility model;

[0031] Figure 8 The figure is a diagram showing the internal structure of a motor according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] Electrical connection structure 10;

[0034] Busbar assembly 1; first connection bar 11; connection bar pins 111; third connection terminals 112; connection bar body 113; second housing 12; second stopper 121;

[0035] The wiring base 2; the second connection row 21; the first connection terminal 211; the second connection terminal 212; the partition 22; the first housing 23; the first limit portion 231; the sealing groove 232;

[0036] Electrical connection row 3; first mounting portion 31; second mounting portion 32; first connecting portion 33;

[0037] stator winding 20;

[0038] Stator core 30;

[0039] Motor 100; DETAILED DESCRIPTION

[0040] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, but should not be construed as limiting the present utility model.

[0041] The electrical connection structure 10 for the motor 100 and the motor 100 according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0042] like Figure 1-Figure 8 As shown, the electrical connection structure 10 according to the first embodiment of the utility model comprises: a busbar assembly 1 , a wiring seat 2 and a plurality of electrical connection bars 3 .

[0043] The busbar assembly 1, the terminal block 2 and the plurality of electrical connection bars 3 as the electrical connection structure 10 in the motor 100 need to be arranged inside the motor 100, wherein Figure 8 As shown, the motor 100 includes a stator core 30 and a stator winding 20. The stator core 30 has an installation space in the middle, and the stator winding 20 is wound and arranged in the installation space. Optionally, the winding cable in the stator winding 20 can be a flat wire or a round wire, which is not specifically limited here.

[0044] Furthermore, if Figure 1 , Figure 6 and Figure 7 As shown, the busbar assembly 1 includes a plurality of first connection bars 11, and the plurality of first connection bars 11 are all suitable for connecting to the outgoing terminals of the stator winding 20 of the motor 100. It can be understood that the number of the first connection bars 11 is set according to the actual needs of the motor 100, and the material of the first connection bars 11 can be selected from metal copper or metal aluminum, and no specific restrictions are made here. For example, taking a three-phase motor as an example, the busbar assembly 1 can be provided with four first connection bars 11, namely, a W-phase copper bar, a V-phase copper bar, a U-phase copper bar, and a star point copper bar, and the W-phase copper bar, the V-phase copper bar, the U-phase copper bar, and the star point copper bar are electrically connected to the outgoing terminals of the stator winding 20 of the motor 100, respectively.

[0045] Furthermore, if Figure 1-Figure 5 As shown, the electrical connection structure 10 also includes a terminal block 2 and a plurality of electrical connection bars 3, wherein the terminal block 2 includes a plurality of second connection bars 21. It can be understood that the plurality of first connection bars 11, the plurality of second connection bars 21, and the plurality of electrical connection bars 3 are all arranged in a one-to-one correspondence, and each electrical connection bar 3 is suitable for being connected between the corresponding first connection bar 11 and the corresponding second connection bar 21, that is, the number of first connection bars 11, the second connection bars 21, and the electrical connection bars 3 is equal, and an electrical connection bar 3 is connected between each first connection bar 11 and each second connection bar 21. For example, continuing to take a three-phase motor as an example, if the busbar assembly 1 includes four first connection bars 11, the electrical connection structure 10 is provided with four electrical connection bars 3, and the terminal block 2 includes four second connection bars 21, wherein each first connection bar 11 and each second connection bar 21 are electrically connected through the electrical connection bar 3, thereby satisfying the electrical connection function of the electrical connection structure 10.

[0046] It should be noted that with the rapid development of new energy vehicles, people have put forward higher requirements for motors. For example, as a new type of drive motor, the new energy oil-cooled flat wire motor has higher slot fill rate, power density, efficiency and carrying capacity, as well as lower volume, weight, noise and cost compared with the traditional round wire motor. These advantages make the flat wire motor have broad application prospects and market space in the field of new energy vehicles. However, with the rapid development of lightweight and integrated new energy vehicles, people have put forward higher structural requirements for motors. At present, the wire diameter of the Y-type winding armature cable of the same main drive motor is thicker. The ordinary welding and copper braided wire electrical connection structure cannot meet the needs of space limitations, especially the high-power high-voltage outlet platform, which needs to ensure both the current carrying capacity and the safety of the insulation system. However, the insulation distance between the cables is limited after the ordinary cable crimping nose is assembled. To ensure insulation, it is necessary to add insulating sleeves, which leads to cramped wiring structure space and difficult installation.

[0047] Based on this, the electrical connection structure 10 proposed in the present application is provided with a plurality of spaced-apart separators 22 on the wiring seat 2, such as Figure 1 , Figure 3 and Figure 4 As shown, assuming that the electrical connection structure 10 is provided with four electrical connection rows 3, it is ensured that a partition 22 is provided between two adjacent electrical connection rows 3 among the four electrical connection rows 3, so that the two adjacent electrical connection rows 3 are separated by the partition 22. In this way, the insulation distance between the electrical connection rows 3 is ensured. It can be understood that the partition 22 can be constructed as an insulating material. For example, the partition 22 can be selected from but not limited to hard plastic, that is, the mutual insulation between the electrical connection rows 3 is ensured by the partition 22, thereby ensuring the safety of the electrical connection structure 10. Compared with the traditional method of adding an insulating sleeve to the electrical connection row 3, the electrical connection row 3 of the present application is exposed, and the insulation function can be achieved only by the partition 22. There is no need to install an insulating sleeve, which simplifies the installation process and is also beneficial to reduce the overall space occupied by the electrical connection structure 10.

[0048] According to the electrical connection structure 10 of the embodiment of the utility model, the electrical connection structure 10 is separately provided with a busbar assembly 1, a terminal block 2 and a plurality of electrical connection bars 3, the busbar assembly 1 includes a plurality of first connection bars 11, the terminal block 2 includes a plurality of second connection bars 21, the plurality of first connection bars 11, the plurality of second connection bars 21 and the plurality of electrical connection bars 3 are all provided in a one-to-one correspondence, thereby ensuring that each electrical connection bar 3 is suitable for being connected between a corresponding first connection bar 11 and a corresponding second connection bar 21, satisfying the electrical connection function of the electrical connection structure 10, and at the same time, a plurality of spaced-apart partitions 22 are provided on the terminal block 2, so that two adjacent electrical connection bars 3 are separated by the corresponding partitions 22, thereby ensuring the insulation of the electrical connection bars 3, and there is no need to add insulating sleeves to the electrical connection bars 3, which is beneficial to reducing the space occupied by the electrical connection structure 10 and simplifying the installation process.

[0049] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 8 As shown, the electrical connection row 3 includes: a first mounting portion 31, a second mounting portion 32 and a first connecting portion 33, the first connecting portion 33 is connected between the first mounting portion 31 and the second mounting portion 32, the first mounting portion 31 is suitable for fixed connection with the first connection row 11, the second mounting portion 32 is suitable for fixed connection with the second connection row 21, and at least a part of the first connecting portion 33 is arranged between two adjacent partitions 22.

[0050] Specifically, continuing to take the three-phase motor as an example, assuming that the electrical connection structure 10 is provided with four electrical connection rows 3, refer to Figure 1 and Figure 2 As shown, each electrical connection row 3 includes a first mounting portion 31, a second mounting portion 32 and a first connecting portion 33, wherein the first mounting portion 31, the second mounting portion 32 and the first connecting portion 33 are all constructed as a plate-like structure, the first connecting portion 33 is connected between the first mounting portion 31 and the second mounting portion 32, the first connecting portion 33 is constructed as a multi-section bent plate, the first mounting portion 31 and the second mounting portion 32 are constructed as flat plates, and there is an angle between the first mounting portion 31, the second mounting portion 32 and the first connecting portion 33, optionally, the angle is 90°, that is, the first mounting portion 31 and the second mounting portion 32 can be vertically arranged on both sides of the first connecting portion 33.

[0051] Furthermore, the first mounting portion 31 is fixedly connected to the first connection row 11, and the second mounting portion 32 is fixedly connected to the second connection row 21, and the fixing installation methods include but are not limited to bolt connection, welding, etc. When the electrical connection row 3 is fixedly connected between the first connection row 11 and the second connection row 21, it is ensured that at least part of the first connection portion 33 of each electrical connection row 3 is arranged between two adjacent partitions 22 of the wiring seat 2, that is, the first connection portion 33 can be completely arranged between two adjacent partitions 22 of the wiring seat 2, and can also be partially arranged between two adjacent partitions 22 of the wiring seat 2. When the first connection portion 33 is completely arranged between two adjacent partitions 22 of the wiring seat 2, the partition 22 can provide a better insulation effect for the electrical connection row 3, such as Figure 1 As shown, when part of the first connection portion 33 is arranged between two adjacent partitions 22 of the terminal block 2, the material of the partition 22 can be reduced. It should be noted that when part of the first connection portion 33 is arranged between two adjacent partitions 22 of the terminal block 2, the part of the first connection portion 33 of the adjacent electrical connection row 3 that is not insulated by the partition 22 can increase the insulation distance between the adjacent first connection portions 33 by bending to ensure the insulation safety of the electrical connection row 3.

[0052] It should be noted that when the first connecting portion 33 is constructed as a multi-section bent plate, it can be arranged in vertical rows at intervals. Figure 3 and Figure 4 As shown, the separator 22 may also be constructed as vertical insulating ribs. Such a configuration is beneficial to further reduce the space occupied by the electrical connection structure 10 and simplify the structure.

[0053] In some embodiments of the present invention, Figure 5 As shown, each second connection row 21 has a first connection terminal 211 and a second connection terminal 212, the first connection terminal 211 is connected to the second connection terminal 212, and there is an angle between the first connection terminal 211 and the second connection terminal 212. For example, the second connection row 21 can be constructed as a single bending structure, with the first connection terminal 211 and the second connection terminal 212 on both sides of the bend, and the bending angle can be 30°, 60°, 90°, etc., which is specifically set according to actual needs and is not specifically limited here. Such a setting is conducive to simplifying the processing technology of the second connection row 21, improving production efficiency and reducing costs. Furthermore, the first connection terminal 211 is suitable for fixed connection with the second mounting portion 32, and the second connection terminal 212 is suitable for connection with an external power supply, so as to realize the series power supply of the electrical connection row 3 and the external power supply, and meet the power supply requirements of the motor 100.

[0054] In some embodiments of the present invention, Figure 5As shown, the first connection terminal 211 has a second connection portion, and the second connection portion is suitable for being fixedly connected to the second mounting portion 32 through a first fastener, and the second connection terminal 212 has a third connection portion, and the third connection portion is suitable for being connected to an external power source through a second fastener. Specifically, the second connection portion and the third connection portion can be constructed as pressure riveted studs, and the first fastener and the second fastener can both be bolts, that is, the second connection row 21 and the corresponding electrical connection row 3 and the second connection row 21 and the external power source are fixedly connected by screwing the bolts and the pressure riveted studs. Such a setting is convenient for installation and disassembly, and is conducive to improving the connection strength between the second connection row 21 and the electrical connection row 3 and the external power source, thereby increasing the reliability of the electrical connection, and further improving the stability of the operation of the motor 100. It should be noted that the second connection portion and the third connection portion can also be constructed as a clamping groove, and the first fastener and the second fastener are constructed as corresponding clamping members, and the fixed connection is achieved by clamping the clamping groove and the clamping member. Of course, there are other fixed connection methods, which are not listed here one by one.

[0055] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the terminal block 2 also includes: a first shell 23, the outer surface of the first shell 23 is provided with a plurality of partitions 22, the first shell 23 is wrapped around the outer surfaces of the plurality of second connection rows 21, and at least a portion of the first connection terminal 211 and at least a portion of the second connection terminal 212 are located outside the first shell 23.

[0056] Specifically, the first housing 23 is constructed of insulating material, and the outer surface of the first housing 23 is provided with the above-mentioned plurality of partitions 22 at intervals. When the electrical connection structure 10 is installed, the partitions 22 ensure mutual insulation between the electrical connection rows 3, thereby ensuring the safety of the electrical connection structure 10. Further, continuing to take the three-phase motor as an example, the terminal block 2 is provided with four second connection rows 21, such as Figure 3 As shown, the outer surfaces of the four second connection rows 21 are all wrapped by the first shell 23. It can be understood that when the first shell 23 wraps the outer surfaces of the four second connection rows 21, the first shell 23 can fill the gaps between the four second connection rows 21. For example, the first shell 23 and the four second connection rows 21 are integrally injection molded, and the injection molding material can be selected as PPS / GF30 material. During the integral injection molding process, the injection molding material can fill the gaps, thereby achieving insulation protection between each second connection row 21 to prevent high voltage from breaking down the insulation of the terminal block 2, causing the short-circuit motor 100 to burn, and at the same time, it is also beneficial to improve the integration level of the terminal block 2.

[0057] Furthermore, when the first shell 23 is wrapped around the outer surface of the plurality of second connection rows 21, it is necessary to ensure that at least a portion of the first connection terminal 211 and at least a portion of the second connection terminal 212 are located outside the first shell 23. Such a configuration facilitates the fixed connection between the first connection terminal 211 and the electrical connection row 3, and the fixed connection between the second connection terminal 212 and the external power supply.

[0058] In some embodiments of the present invention, Figure 4 As shown, the first housing 23 has a plurality of first limiting portions 231 arranged corresponding to the first connecting terminals 211 , and the first limiting portions 231 are suitable for abutting against the second mounting portions 32 of the electrical connection row 3 for limiting.

[0059] It should be noted that the cables of the existing electrical connection structure 10 are closely spaced, and without anti-rotation, the cables will collide with each other during assembly, causing the torque to decay and become loose, which will lead to poor contact at the electrical connection and eventually cause local overheating, short circuit and burning of the motor 100.

[0060] Based on this, the present application sets a first limit portion 231 on the first housing 23. Specifically, continuing to take the three-phase motor as an example, the electrical connection structure 10 is provided with four electrical connection rows 3, and the terminal block 2 includes four second connection rows 21, such as Figure 4 As shown, the first shell 23 has five first limiting portions 231 corresponding to the first connecting terminals 211, the five first limiting portions 231 are arranged at intervals, and a first connecting terminal 211 is provided between adjacent first limiting portions 231. Furthermore, when each first connecting terminal 211 is assembled with the corresponding electrical connection row 3, the first limiting portion 231 can abut against the corresponding electrical connection row 3 for limiting, thereby preventing the electrical connection row 3 and the second connection row 21 from loosening during assembly (such as tightening bolts and other operations) or operation of the motor 100, so as to avoid poor contact and reduce the risk of failures such as phase loss, overheating and burning of the motor 100.

[0061] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the first housing 23 further includes: a plurality of sealing grooves 232 , the plurality of sealing grooves 232 correspond to the plurality of second connection rows 21 one by one, and the sealing grooves 232 are suitable for filling with sealant.

[0062] It should be noted that the existing electrical connection structure does not consider the problem of oil leakage caused by lubricating oil infiltration in terms of airtightness detection. Based on this, the present application also sets a plurality of sealing grooves 232 on the first shell 23. Taking the three-phase motor as an example, the terminal block 2 is provided with four second connection rows 21, and each second connection row 21 is provided with a corresponding sealing groove 232. In order to prevent the lubricating oil from infiltrating the gap between the second connection row 21 and the first shell 23, the sealing groove 232 is filled with sealant. The sealant can flow into the gap between the second connection row 21 and the first shell 23 through the sealing groove 232. When the sealant solidifies, it can play a better sealing role, thereby preventing the oil infiltration in the cavity of the motor 100.

[0063] In some embodiments of the present invention, Figure 6-Figure 8 As shown, along the radial direction of the stator winding 20, a plurality of first connection rows 11 have connection row pins 111 on one side close to the stator winding 20, and the connection row pins 111 are suitable for connecting to the output end of the stator winding 20, and the first connection row 11 has a connection row body 113 and a third connection terminal 112, and along the axial direction of the stator winding 20, the third connection terminal 112 is spaced apart from the connection row body 113, and the third connection terminal 112 is suitable for being fixedly connected to the first mounting portion 31 via a third fastener.

[0064] Specifically, Figure 6 As shown, continuing with the example of a three-phase motor, the bus assembly 1 includes four first connecting rows 11, and the connecting row pins 111 of the four first connecting rows 11 are all arranged on a side close to the stator winding 20. Compared with the traditional pins arranged on both sides of the connecting row, the present application arranges the connecting row pins 111 on the same side close to the stator winding 20. Optionally, the connecting row pins 111 are bent and extended in a direction away from the stator winding 20. Such an arrangement facilitates the connection between the connecting row pins 111 and the output terminal of the stator winding 20. The connection method includes but is not limited to welding, etc., and the connecting row pins 111 are integrally arranged on the corresponding first connecting row 11, which simplifies the structure of the first connecting row 11 and is conducive to improving the integration level of the first connecting row 11.

[0065] Further, continue to refer to Figure 6As shown, each first connection row 11 has a connection row body 113 and a third connection terminal 112, the connection row body 113 extends along the circumferential direction of the stator winding 20, the third connection terminal 112 is connected to the connection row body 113, and along the axial direction of the stator winding 20, the third connection terminal 112 is spaced apart from the connection row body 113, such a configuration can prevent the first connection row 11 from short-circuiting, further, the third connection terminal 112 is fixedly connected to the first mounting portion 31 through a third fastener, specifically, the third connection terminal 112 is provided with a fourth connection portion, and the fourth connection portion is located at the third connection terminal 112 is close to one side of the connection row body 113, and the fourth connection portion extends in a direction close to the connection row body 113. It can be understood that the fourth connection portion can be but is not limited to extending perpendicular to the connection row body 113. For example, the fourth connection portion can be constructed as a riveted stud, and the third fastener can be a bolt. The bolt and the riveted stud are screwed together to achieve a fixed connection between the third connection terminal 112 and the corresponding electrical connection row 3. Such a configuration is conducive to improving the connection strength between the first connection row 11 and the electrical connection row 3, thereby increasing the reliability of the electrical connection, and further improving the stability of the operation of the motor 100.

[0066] In some embodiments of the present invention, Figure 7 As shown, the bus assembly 1 also includes: a second shell 12, the second shell 12 is wrapped around the outer surface of the plurality of first connection rows 11, and at least a portion of the connection row pins 111 and at least a portion of the third connection terminals 112 are located outside the second shell 12, and the second shell 12 has a plurality of second limiting portions 121 corresponding to the third connection terminals 112, the second limiting portions 121 have limiting ribs, and the limiting ribs are suitable for abutting and limiting with the first mounting portion 31 of the electrical connection row 3.

[0067] Specifically, the busbar assembly 1 further includes a second housing 12, which is constructed of an insulating material. The second housing 12 is wrapped around the outer surface of the plurality of first connecting bars 11. Taking the three-phase motor as an example, the busbar assembly 1 is provided with four first connecting bars 11, such as Figure 7 As shown, the outer surfaces of the four first connecting rows 11 are all wrapped by the second shell 12. It can be understood that when the second shell 12 wraps the outer surfaces of the four first connecting rows 11, the second shell 12 can fill the gaps between the four first connecting rows 11. For example, the second shell 12 and the four first connecting rows 11 are integrally injection molded, and the injection molding material can be selected as PPS / GF30 material. During the integral injection molding process, the injection molding material can fill the gaps, thereby achieving insulation protection between the first connecting rows 11 to prevent the motor 100 from burning due to a short circuit to the ground, and at the same time, it is also beneficial to improve the integration level of the bus assembly 1.

[0068] Furthermore, when the second shell 12 is wrapped around the outer surface of multiple first connection rows 11, it is necessary to ensure that at least part of the connection row pins 111 and at least part of the third connection terminals 112 are located outside the second shell 12. Such a configuration facilitates the fixed connection between the third connection terminals 112 and the electrical connection row 3, as well as the welding of the connection row pins 111 and the output terminals of the stator winding 20.

[0069] Furthermore, the second shell 12 has a plurality of second limiting portions 121 corresponding to the third connecting terminals 112, and each second limiting portion 121 has a limiting rib. For example, two limiting ribs are arranged at intervals on the second limiting portion 121. It can be understood that the height of the limiting rib needs to be set to be higher than the mounting surface of the first mounting portion 31 of the electrical connection row 3. With this arrangement, when the electrical connection row 3 is assembled with the corresponding third connecting terminal 112, the limiting rib can abut against the first mounting portion 31 of the corresponding electrical connection row 3 for limiting, thereby preventing the electrical connection row 3 from being loosened due to rotation when being fixedly connected to the first connection row 11 (such as tightening bolts, etc.).

[0070] The motor 100 according to the second embodiment of the utility model includes the electrical connection structure 10 as in the first embodiment.

[0071] According to the motor 100 of the embodiment of the utility model, by setting the above-mentioned electrical connection structure 10, the electrical connection structure 10 separately sets a bus assembly 1, a terminal block 2 and a plurality of electrical connection rows 3, the bus assembly 1 includes a plurality of first connection rows 11, the terminal block 2 includes a plurality of second connection rows 21, the plurality of first connection rows 11, the plurality of second connection rows 21, and the plurality of electrical connection rows 3 are all set in a one-to-one correspondence, thereby ensuring that each electrical connection row 3 is suitable for connecting between the corresponding first connection row 11 and the corresponding second connection row 21, satisfying the electrical connection function of the electrical connection structure 10, and at the same time, a plurality of spaced-apart partitions 22 are set on the terminal block 2, so that two adjacent electrical connection rows 3 are separated by the corresponding partitions 22, thereby ensuring the insulation of the electrical connection row 3, and there is no need to add insulating sleeves to the electrical connection row 3, which is beneficial to reducing the space occupied by the electrical connection structure 10 and simplifying the installation process.

[0072] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] 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.

[0075] 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. An electrical connection structure (10) for a motor, characterized in that: The electrical connection structure (10) comprises: A busbar assembly (1), the busbar assembly (1) comprising a plurality of first connection bars (11), the plurality of first connection bars (11) being suitable for being connected to the output terminals of the stator windings (20) of the motor (100); A wiring base (2), the wiring base (2) comprising a plurality of second connection rows (21) and a plurality of spacers (22) arranged at intervals; A plurality of electrical connection rows (3), a plurality of the first connection rows (11), a plurality of the second connection rows (21), and a plurality of the electrical connection rows (3) are arranged one by one, each of the electrical connection rows (3) is suitable for being connected between a corresponding first connection row (11) and a corresponding second connection row (21), and a separator (22) is provided between two adjacent electrical connection rows (3) so as to separate the two adjacent electrical connection rows (3).

2. The electrical connection structure (10) according to claim 1, characterized in that: The electrical connection bar (3) comprises: a first mounting portion (31), a second mounting portion (32) and a first connecting portion (33); the first connecting portion (33) is connected between the first mounting portion (31) and the second mounting portion (32); the first mounting portion (31) is suitable for being fixedly connected to the first connection bar (11); the second mounting portion (32) is suitable for being fixedly connected to the second connection bar (21); and at least a portion of the first connecting portion (33) is arranged between two adjacent partitions (22).

3. The electrical connection structure (10) according to claim 2, characterized in that: The second connection row (21) comprises a first connection terminal (211) and a second connection terminal (212); the first connection terminal (211) is connected to the second connection terminal (212), and an angle is formed between the first connection terminal (211) and the second connection terminal (212); the first connection terminal (211) is suitable for being fixedly connected to the second mounting portion (32), and the second connection terminal (212) is suitable for being connected to an external power source.

4. The electrical connection structure (10) according to claim 3, characterized in that: The first connecting terminal (211) has a second connecting portion, and the second connecting portion is suitable for being fixedly connected to the second mounting portion (32) via a first fastener; The second connection terminal (212) has a third connection portion, and the third connection portion is suitable for connecting to the external power source through a second fastener.

5. The electrical connection structure (10) according to any one of claims 3 to 4, characterized in that: The terminal block (2) further comprises: a first shell (23), the outer surface of the first shell (23) being provided with a plurality of the partitions (22), the first shell (23) being wrapped around the outer surfaces of the plurality of the second connection rows (21), and at least a portion of the first connection terminals (211) and at least a portion of the second connection terminals (212) being located outside the first shell (23).

6. The electrical connection structure (10) according to claim 5, characterized in that: The first housing (23) has a plurality of first limiting portions (231) arranged corresponding to the first connecting terminals (211), and the first limiting portions (231) are suitable for abutting and limiting with the second mounting portion (32) of the electrical connection row (3).

7. The electrical connection structure (10) according to claim 5, characterized in that: The first housing (23) further comprises: a plurality of sealing glue grooves (232), the plurality of sealing glue grooves (232) corresponding one-to-one to the plurality of second connection rows (21), and the sealing glue grooves (232) are suitable for filling with sealing glue.

8. The electrical connection structure (10) according to claim 2, characterized in that: Along the radial direction of the stator winding (20), a plurality of the first connection rows (11) have connection row pins (111) on one side close to the stator winding (20), and the connection row pins (111) are suitable for being connected to the output terminal of the stator winding (20); The first connection row (11) comprises a connection row body (113) and a third connection terminal (112), and along the axial direction of the stator winding (20), the third connection terminal (112) is spaced apart from the connection row body (113), and the third connection terminal (112) is suitable for being fixedly connected to the first mounting portion (31) via a third fastener.

9. The electrical connection structure (10) according to claim 8, characterized in that: The busbar assembly (1) further comprises: a second housing (12), the second housing (12) being wrapped around the outer surface of the plurality of first connection bars (11), and at least a portion of the connection bar pins (111) and at least a portion of the third connection terminals (112) being located outside the second housing (12); The second housing (12) has a plurality of second limiting portions (121) arranged corresponding to the third connection terminals (112), and the second limiting portions (121) have limiting convex ribs, and the limiting convex ribs are suitable for abutting and limiting with the first mounting portion (31) of the electrical connection row (3).

10. A motor (100), characterized in that: The invention comprises an electrical connection structure (10) according to any one of claims 1 to 9.

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