Stator assembly, motor, water pump and vehicle

Abstract

The invention discloses a stator assembly, a motor, a water pump and a vehicle. The stator assembly comprises a stator core; the insulating framework is arranged on the stator core, and the insulating framework is provided with a first mounting part; the coil winding is wound on the insulating framework, and the coil winding is provided with a plurality of connecting wire ends located on the first mounting part; the plurality of connector terminals are arranged on the first mounting part, each connector terminal is provided with a connecting end part suitable for being electrically connected with an external application end, at least a part of the connector terminals are wiring terminals, each wiring terminal comprises a wire clamping part, the wire clamping part is provided with a first wire clamping groove through which the connecting wire end passes, and the first wire clamping groove is provided with a second wire clamping groove through which the connecting wire end passes; and at least part of the wire clamping part is suitable for puncturing the outer cladding of the connecting wire end so as to be electrically connected with the connecting wire end. According to the stator assembly provided by the invention, the coil winding can be directly and electrically connected with the external application end through the wiring terminal, so that the structure of the stator assembly is simpler.

Description

Technical Field

[0001] The present invention relates to the technical field of stator structures, and in particular to a stator assembly, a motor, a water pump and a vehicle. Background Art

[0002] As the most common power source, motors are widely used in various industries. Motors usually include a stator assembly, which is equipped with coils. When the coils of the stator assembly are energized, a changing magnetic field is generated. When a magnetic rotor assembly is set in the energized stator assembly, the stator assembly drives the rotor assembly to rotate continuously through the changing magnetic field.

[0003] In the related art, in order to connect the coil on the stator assembly to the external power interface and power it on, a common method is to connect the coil to the terminal block, the terminal block is connected to the PCB control board or copper busbar, the PCB or copper busbar is then connected to the external power interface, and then the power supply transmits the current to the terminal block through the copper busbar or PCB, and the terminal block transmits the current to the stator coil connected to it.

[0004] In the above technical solution, the stator assembly has the problems of high component cost, complex structure, large product volume, complex assembly process, long assembly cycle, high cost, etc. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a stator assembly, wherein the coil winding is connected to the wiring terminal, one end of the wiring terminal is connected to the coil winding, and the other end can be directly connected to the power interface of the external application end, eliminating the intermediate transition PCB control board or copper bar, making the structure of the stator assembly simpler.

[0006] The present invention also provides a motor comprising the stator assembly.

[0007] The present invention also provides a water pump comprising the motor.

[0008] The present invention also provides a vehicle comprising the water pump.

[0009] According to an embodiment of the present invention, a stator assembly includes: a stator core; an insulating frame, which is arranged on the stator core and is provided with a first mounting portion; a coil winding, which is wound on the insulating frame and is provided with a plurality of connecting wire ends located on the first mounting portion; a plurality of connector terminals, which are arranged on the first mounting portion, each of which is provided with a connecting end portion suitable for electrical connection to an external application end, at least a portion of the connector terminals are wiring terminals, the wiring terminals include a wire clamping portion, the wire clamping portion is provided with a first wire clamping groove for passing the connecting wire end, and at least a portion of the wire clamping portion is suitable for piercing the outer sheath of the connecting wire end to electrically connect to the connecting wire end.

[0010] According to the stator assembly of the embodiment of the present invention, the coil winding can be directly electrically connected to the external application end through the terminal block, without the need to use transition pieces such as a control board or a copper busbar, so that the structure of the stator assembly is simpler and the cost of the stator assembly is reduced. In addition, the terminal block can pierce the outer sheath of the connecting wire end through cold pressing of the wire clamping part to be electrically connected to the connecting wire end, eliminating the resistance welding process and equipment, reducing the difficulty of electrically connecting the coil winding to the terminal block, and further reducing the cost of the stator assembly.

[0011] In some embodiments, the first mounting portion is provided with a first mounting groove, the plurality of connecting wire ends extend into the first mounting groove, and the wire clamping portion extends into the first mounting groove to pierce the outer sheath.

[0012] In some embodiments, the first installation slot is a plurality of sub-slots arranged at intervals, and the plurality of connection wire ends extend into the plurality of sub-slots in a one-to-one correspondence.

[0013] In some embodiments, the connection terminal is provided with a stop portion, and the stop portion abuts against an end surface of the first mounting portion to limit the displacement of the connection terminal in the axial direction of the stator core.

[0014] In some embodiments, the wire clamping portion is detachably matched with the first mounting groove.

[0015] In some embodiments, the plurality of connector terminals further include a ground terminal, and the ground terminal is electrically connected to the stator core.

[0016] In some embodiments, the stator core is provided with an insertion slot, and the ground terminal is inserted into the insertion slot.

[0017] In some embodiments, the ground terminal further includes a first limiting surface disposed toward the stator core, and the first limiting surface abuts against the insulating frame to limit the displacement of the plug-in portion in the axial direction of the stator core.

[0018] In some embodiments, the insulating frame further includes a limit baffle, and the limit baffle abuts against the grounding terminal to limit the displacement of the grounding terminal in the radial direction of the stator core.

[0019] In some embodiments, the coil winding includes a multi-phase winding, the insulating skeleton includes multiple winding positions, and the insulating skeleton is also provided with a first routing space, the first routing space is provided with wire grooves corresponding to the winding positions of different phases, and the conductors of one phase winding are routed to the winding positions of another phase through the wire grooves and the first routing space.

[0020] In some embodiments, the first wiring space and the first mounting portion are located on two axial sides of the insulating frame.

[0021] In some embodiments, the stator assembly further comprises: a common conductive member, the common conductive member being provided with a first common terminal and a second common terminal which are electrically connected, wherein the conductors of the windings of two phases are electrically connected to the first common terminal, and the conductors of the windings of another phase are electrically connected to the second common terminal.

[0022] In some embodiments, the first common terminal and the second common terminal are both provided with a second wire clamping groove for passing a wire, and the first common terminal and the second common terminal are both suitable for piercing an outer sheath of the wire to be electrically connected to the wire.

[0023] The motor according to the embodiment of the present invention includes: the stator assembly described in the above technical solution.

[0024] A water pump according to an embodiment of the present invention includes: the motor described in the above technical solution.

[0025] A vehicle according to an embodiment of the present invention comprises: the water pump described in the above technical solution.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic structural diagram of a stator assembly according to some embodiments of the present invention;

[0029] Figure 2 is a front view of a stator assembly according to an embodiment of the present invention;

[0030] Figure 3 yes Figure 2 a partial cross-sectional view of a middle stator assembly;

[0031] Figure 4 It is a schematic diagram of the structure of three wiring terminals;

[0032] Figure 5 It is a schematic diagram of the structure of the grounding terminal;

[0033] Figure 6 It is a structural schematic diagram of a common conductive part;

[0034] Figure 7 is a schematic structural diagram of a stator assembly according to some other embodiments of the present invention;

[0035] Figure 8 is a schematic structural diagram of a water pump according to an embodiment of the present invention;

[0036] Fig. 9 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

[0037] Figure numerals: 100, stator assembly; 1, stator core; 11, yoke; 111, insertion slot; 2, insulation frame; 21, winding position; 211, first winding position; 212, second winding position; 213, third winding position; 214, fourth winding position; 215, fifth winding position; 216, sixth winding position; 22, first mounting portion; 221, first mounting slot; 2211, U-phase slot; 2212, V-phase slot; 2213, W-phase slot; 222, first avoidance slot; 23, limit baffle; 24, wire slot; 241, chamfer; 25, first wiring space; 26, second mounting portion part; 261, second mounting groove; 262, second avoidance groove; 3, coil winding; 31, connecting wire end; 32, common wire end; 4, connector terminal; 41, connecting end; 42, wiring terminal; 421, wire clamping part; 4211, clamping block; 422, first wire clamping groove; 423, stop part; 43, grounding terminal; 431, plug-in part; 432, first limiting surface; 5, common conductive part; 51, first common terminal; 52, second common terminal; 53, second wire clamping groove; 600, water pump; 6, pump housing; 61, liquid inlet; 62, liquid outlet; 7, motor; 700, vehicle. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood 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 invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0041] Reference below Figure 1-Figure 9 A stator assembly 100 according to an embodiment of the present invention is described.

[0042] Reference Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, the stator assembly 100 comprises: a stator core 1, an insulating frame 2, a coil winding 3 and a connector terminal 4. The stator core 1 comprises a yoke 11 and a plurality of teeth arranged on the yoke 11; the insulating frame 2 is arranged on the stator core 1, and the insulating frame 2 comprises a plurality of winding positions 21, and the plurality of winding positions 21 correspond to the plurality of teeth one by one, and each winding position 21 is sheathed on the corresponding tooth; the coil winding 3 is structured such that a wire is wound on the winding position 21 of the insulating frame 2, and when the coil winding 3 is energized, a magnetic field is generated in the stator assembly 100.

[0043] There are multiple connector terminals 4, each of which is provided with a connecting end 41 suitable for being electrically connected to an external application end. At least a portion of the multiple connector terminals 4 are wiring terminals 42, and the wiring terminals 42 are used to connect to the coil winding 3. That is, the coil winding 3 can be directly electrically connected to the external application end through the wiring terminals 42, without the need to use transition pieces such as a control board or a copper busbar, thereby making the structure of the stator assembly 100 simpler and reducing the cost of the stator assembly 100.

[0044] The coil winding 3 is provided with a plurality of connection wire ends 31, and the plurality of connection wire ends 31 are all used to be electrically connected to the connection terminal 42. The insulating frame 2 is provided with a first mounting portion 22 for mounting the connector terminal 4, and the plurality of connection wire ends 31 are all arranged on the first mounting portion 22, so that the connection terminal 42 can be directly electrically connected to the connection wire end 31 when it is mounted on the first mounting portion 22, reducing the difficulty of connecting the connection wire end 31 with the connection terminal 42.

[0045] Reference Figure 1 , Figure 3 and Figure 4 The coil winding 3 is wound by a conductive wire, and the conductive wire includes a conductive portion and an outer sheath wrapped around the conductive portion. Therefore, in order to achieve electrical connection between the connecting wire end 31 of the coil winding 3 and the connecting terminal 42, it is necessary to break the outer sheath of the connecting wire end 31. The connecting terminal 42 in the embodiment of the present invention includes a wire clamping portion 421, and the wire clamping portion 421 is provided with a first wire clamping groove 422 for passing the connecting wire end 31. At least part of the wire clamping portion 421 is suitable for piercing the outer sheath of the connecting wire end 31 to electrically connect with the connecting wire end 31. That is to say, when the connecting wire end 31 enters the first wire clamping groove 422, the wire clamping portion 421 can pierce the outer sheath of the connecting wire end 31, so that the conductive portion of the connecting wire end 31 is electrically connected to the wire clamping portion 421.

[0046] According to the stator assembly 100 of the embodiment of the present invention, the coil winding 3 can be directly electrically connected to the external application end through the terminal block 42, without the need to use a control board or a transition piece such as a copper busbar, so that the structure of the stator assembly 100 is simpler and the cost of the stator assembly 100 is reduced. In addition, the terminal block 42 can pierce the outer sheath of the connecting wire end 31 through the wire clamping portion 421 to be electrically connected to the connecting wire end 31, which reduces the difficulty of electrically connecting the coil winding 3 to the terminal block 42 and further reduces the cost of the stator assembly 100.

[0047] In some embodiments, the insulating frame 2 is integrally molded with the stator core 1 by injection molding, and in other embodiments, the insulating frame 2 can be plugged or bonded to the stator core 1. Other situations are also possible, as long as the insulating frame 2 is arranged on the stator core 1.

[0048] In some embodiments, the insulating frame 2 and the first mounting portion 22 are separate components, and the first mounting portion 22 can be fixed to the insulating frame 2 by means of structural components such as screws and glue.

[0049] In other embodiments, the insulating frame 2 and the first mounting portion 22 are an integrated structure, which reduces the cost of the stator assembly 100 and reduces the assembly process of the stator assembly 100 .

[0050] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments, the first mounting portion 22 is provided with a first mounting groove 221 , a plurality of connecting wire ends 31 extend into the first mounting groove 221 , and the wire clamping portion 421 extends into the first mounting groove 221 to pierce the outer sheath of the connecting wire end 31 .

[0051] In the above technical solution, the connecting wire end 31 extends into the first installation groove 221, limiting the position of the connecting wire end 31, so that the wire clamping part 421 can be inserted into the first installation groove 221 to pierce the outer sheath of the connecting wire end 31, further improving the convenience of electrical connection between the coil winding 3 and the terminal 42.

[0052] Reference Figure 2 , Figure 3 and Figure 4 In some further embodiments, the first installation groove 221 is a plurality of sub-grooves arranged at intervals, and the plurality of connection wire ends 31 extend into the plurality of sub-grooves one by one.

[0053] Because the multiple connection wire ends 31 correspond to multiple different phase wires, in the above scheme, the multiple connection wire ends 31 extend into the multiple sub-slots one by one, so as to distinguish the phase wires corresponding to the different connection wire ends 31, and the multiple sub-slots are arranged at intervals, which effectively reduces the possibility of electrical connection between different connection wire ends 31. The multiple sub-slots arranged at intervals are also conducive to the independent installation of multiple wiring terminals 42, further reducing the difficulty of assembling the stator assembly 100.

[0054] Reference Figure 2 , Figure 3 and Figure 4 In some specific embodiments, the first mounting portion 22 is provided with a first avoidance groove 222 for the connection wire end 31 to pass through at the position corresponding to each sub-groove, the first avoidance groove 222 is connected to the corresponding sub-groove, and the first avoidance groove 222 passes through two opposite side walls of the corresponding sub-groove. The connection wire end 31 is located in the corresponding first avoidance groove 222, which limits the position of the connection wire end 31, so that the outer sheath of the connection wire end 31 can be pierced when the connection wire end 31 is inserted into the corresponding sub-groove.

[0055] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments, the terminal 42 is provided with a stop portion 423, which stops at the end surface of the first mounting portion 22 to limit the axial displacement of the terminal 42 in the stator core 1. When the terminal 42 is installed on the first mounting groove 221, the stop portion 423 stops at the end of the first mounting portion 22, indicating that the terminal 42 is installed in place, thereby improving the installation accuracy of the terminal 42 and the stability of the terminal 42 during installation.

[0056] Reference Figure 1 , Figure 3 and Figure 4 In some specific embodiments, the stop portion 423 of the terminal block 42 is disposed between the connecting end portion 41 and the clamping portion, and the stop portion 423 is adapted to stop against the end surface of the first mounting portion 22 provided with the first mounting groove 221 .

[0057] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments, the wire clamping portion 421 is detachably matched with the first mounting groove 221. When there is a problem in the connection between the wire clamping portion 421 and the connecting wire end 31, the wire clamping portion 421 can be removed from the first mounting groove 221 for inspection, which is beneficial to the assembly and maintenance of the stator assembly 100.

[0058] In some embodiments, a first stopper is provided on the clamping portion 421, and a second stopper is provided in the first mounting groove 221, and the first stopper and the second stopper are engaged with each other. When the connection terminal 42 is installed on the first mounting groove 221, the stopper portion 423 abuts against the end of the first mounting portion 22, and the first stopper and the second stopper are engaged with each other, thereby fixing the connection terminal 42 on the first mounting portion 22, and effectively improving the stability of the connection terminal 42.

[0059] Reference Figure 1 , Figure 3 and Figure 4 In some specific embodiments, the first limiting member is configured as a clamping block 4211 disposed on the peripheral side of the clamping portion 421, and the second limiting member is a limiting surface disposed on the inner wall of the first mounting groove 221, and the limiting surface is disposed toward a side away from the opening of the first mounting groove 221. When the clamping block 4211 abuts against the limiting surface, the connection terminal 42 is restricted from being separated from the first mounting groove 221, thereby effectively improving the stability of the connection terminal 42.

[0060] In some embodiments, the wire clamping portion 421 and the first mounting groove 221 are engaged with each other through a first limit member and a second limit member. In other embodiments, the wire clamping portion 421 can also be detachably engaged with the first mounting groove 221 through a screw. Other situations are also possible as long as the wire clamping portion 421 and the first mounting groove 221 can be detachably engaged.

[0061] Reference Figure 2 , Figure 3 and Figure 5 In some embodiments, the plurality of connector terminals 4 further include a ground terminal 43 , which is electrically connected to the stator core 1 to improve the safety of the stator assembly 100 .

[0062] Reference Figure 2 , Figure 3 and Figure 5 In some implementations, the stator core 1 is provided with an insertion slot 111, and the grounding terminal 43 is provided with a plug-in portion 431, which is inserted into the insertion slot 111 to achieve electrical connection between the stator core 1 and the grounding terminal 43, and also improve the stability of the connection between the stator core 1 and the grounding terminal 43.

[0063] In some specific embodiments, the insulating frame 2 is covered on a side of the stator core 1 where the insertion slot 111 is provided, and the plug-in portion 431 passes through the insulating frame 2 and is inserted into the insertion slot 111 and has an interference fit with the insertion slot 111 .

[0064] Reference Figure 2 , Figure 3 and Figure 5 In some embodiments, the ground terminal 43 further includes a first limiting surface 432 disposed toward the stator core 1 , and the first limiting surface 432 abuts against the insulating frame 2 to limit the axial displacement of the plug-in portion 431 in the stator core 1 .

[0065] When the plug-in portion 431 is inserted into the insertion slot 111 , the first limiting surface 432 abuts against the insulating frame 2 , indicating that the grounding terminal 43 is installed in place, thereby improving the installation accuracy of the grounding terminal 43 .

[0066] In some specific embodiments, a portion of the ground terminal 43 is bent to form a first limiting surface 432 disposed toward the first mounting portion 22 , and the first limiting surface 432 abuts against the first mounting portion 22 .

[0067] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the insulating frame 2 further includes a limit baffle 23 , which abuts against the grounding terminal 43 to limit the displacement of the grounding terminal 43 in the radial direction of the stator core 1 , thereby further improving the stability of the grounding terminal 43 .

[0068] In some specific embodiments, the limiting baffle 23 is disposed on the first mounting portion 22 , and the limiting baffle 23 abuts against the middle of the length direction of the grounding terminal 43 to ensure the stability of the grounding terminal 43 .

[0069] In some specific embodiments, at least two limit baffles 23 are provided, and the two limit baffles 23 are arranged at intervals along the radial direction of the stator core 1, and the two limit baffles 23 are distributed on both sides of the grounding terminal 43, thereby limiting the movement of the grounding terminal 43 toward the radial inside or radial outside of the stator core 1.

[0070] Reference Figure 1 , Figure 2 and Figure 3In some embodiments, the connection ends 41 of the plurality of connector terminals 4 are arranged at equal intervals to facilitate the cooperation of the plurality of connection ends 41 with the external application end.

[0071] Reference Figure 1 , Figure 2 and Figure 7 In some embodiments, the coil winding 3 includes a multi-phase winding, the insulating skeleton 2 includes a plurality of winding positions 21, and the insulating skeleton 2 is further provided with a first wiring space 25, and the first wiring space 25 is provided with wire grooves 24 corresponding to the winding positions 21 of different phases. The conductor of one phase winding is routed to the winding position 21 of another phase through the wire grooves 24 and the first wiring space 25, so that one conductor can be wound to a plurality of different winding positions 21, and the winding at all winding positions 21 can also be completed by one conductor, which effectively improves the convenience of winding the stator assembly 100.

[0072] Reference Figure 1 , Figure 2 and Figure 7 In some specific embodiments, multiple winding positions 21 are located on the radial inner side of the insulating skeleton 2, and the wire groove 24 penetrates the insulating skeleton 2 in the radial direction of the insulating skeleton 2. After the wire is wound at the winding position 21 of one phase, it can be wound to the outside of the insulating skeleton 2 through the wire groove 24 and routed along the circumference of the insulating skeleton 2. Then, it can be wound to the inside of the insulating skeleton 2 again through another wire groove 24 and wound at the winding position 21 of another phase.

[0073] Reference Figure 1 , Figure 2 and Figure 7 In some specific embodiments, a chamfer 241 is provided at the notch of the wire groove 24, so that the space for the wire to pass through the wire groove 24 is larger, which is more convenient for winding.

[0074] In some embodiments, the first wiring space 25 and the first mounting portion 22 are located on both axial sides of the insulating frame 2, and the wiring portion of the coil winding 3 is as far away from the connector terminal 4 as possible, so that the wires at the first mounting portion 22 are neater and convenient for connecting the wiring terminal 42 with the corresponding connecting wire end 31.

[0075] Reference Figure 1 , Figure 2 and Figure 7In some specific embodiments, the coil winding 3 includes: a winding corresponding to the U phase line, a winding corresponding to the V phase line, and a winding corresponding to the W phase line. The U phase line is provided with a U-connected terminal 31, the V phase line is provided with a V-connected terminal 31, and the W phase line is provided with a W-connected terminal 31; the multiple sub-slots of the first mounting portion 22 include: a U phase slot 2211, a V phase slot 2212, and a W phase slot 2213; the multiple wiring terminals 42 include: a U phase terminal, a V phase terminal, and a W phase terminal. The U-connected terminal 31 is located in the U phase slot 2211 and is connected to the U phase terminal, the V-connected terminal 31 is located in the V phase slot 2212 and is connected to the V phase terminal, and the W-connected terminal 31 is located in the W phase slot 2213 and is connected to the W phase terminal.

[0076] The positions, extension directions and arrangement of the multiple connector terminals 4 are designed according to the connector model of the external application end, so that the multiple connector terminals 4 of the motor 7 can be matched with the connector of the external application end. Because the models of the connectors of different external application ends may be different, the spacing requirements of the terminals of different models of connectors are different, and the order of the three-phase terminals and the ground terminal 43 is also different, the arrangement of the multiple terminals of the motor 7 of the present application may be different in different embodiments. For example, referring to Figure 3 In one embodiment of the present invention, a plurality of connector terminals 4 are arranged in parallel in a straight line, and the arrangement order is U, V, W, ground, and the spacing between two adjacent connector terminals 4 is 4 mm. In some other embodiments, the arrangement order of the plurality of connector terminals 4 can also be: U, W, V, ground or U, W, ground, V, etc.

[0077] The connection method of the three-phase line can be star connection or triangle connection. Figure 1 , Figure 6 and Figure 7 In some embodiments of the present invention, the three-phase line adopts a star connection. The U-phase line is also provided with a U-phase common line terminal 32, the V-phase line is also provided with a V-phase common line terminal 32, and the W-phase line is also provided with a W-phase common line terminal 32. The stator assembly 100 also includes: a common conductive member 5, and the U-phase common line terminal 32, the V-phase common line terminal 32 and the W-phase common line terminal 32 are all electrically connected to the common conductive member 5, thereby forming the above-mentioned star connection.

[0078] Reference Figure 1 , Figure 6 and Figure 7 In some specific embodiments, the common conductive member 5 is provided with a first common terminal 51 and a second common terminal 52 which are electrically connected, wherein the wires of the windings of two phases are electrically connected to the first common terminal 51, and the wires of the windings of the other phase are electrically connected to the second common terminal 52, so as to reduce the structural size of the common conductive member 5 and reduce the cost of the stator assembly.

[0079] In some embodiments, the U-phase common line terminal 32 , the V-phase common line terminal 32 , and the W-phase common line terminal 32 are three independent wires, two of which are electrically connected to the first common terminal 51 , and the other of which is electrically connected to the second common terminal 52 .

[0080] Reference Figure 7 In other embodiments, two of the U-phase common line terminal 32, the V-phase common line terminal 32, and the W-phase common line terminal 32 are integrated wires, that is, the common line terminals of the three phases have two independent wires. One of the two wires is electrically connected to the first common terminal 51, and the other is electrically connected to the second common terminal 52.

[0081] Reference Figure 1 , Figure 6 and Figure 7 In some embodiments, a second mounting portion 26 for mounting a common conductive member 5 is provided on the insulating frame 2. The second mounting portion 26 and the first mounting portion 22 are located on the same side in the axial direction of the stator core 1. The first mounting portion 22 and the second mounting portion 26 are distributed on opposite sides of the stator core 1 in the radial direction to facilitate separation of the connector terminal 4 from the common conductive member 5.

[0082] The second mounting portion 26 is provided with a second mounting groove 261 for inserting the common conductive member 5 . The common conductive member 5 is inserted into the second mounting groove 261 to ensure the stability of the common conductive member 5 .

[0083] Reference Figure 1 , Figure 6 and Figure 7 In some embodiments, the first common terminal 51 and the second common terminal 52 are both provided with a second wire clamping groove 53 for passing the wire, and the first common terminal 51 and the second common terminal 52 are both suitable for piercing the outer sheath of the wire to be electrically connected to the wire. This improves the convenience of electrical connection between the coil winding 3 and the terminal 42

[0084] When there are three independent wires at the common line end of the three phases, two of the three wires are clamped in the second clamping groove 53 of the first common terminal 51 , and another of the three wires is clamped in the second clamping groove 53 of the second common terminal 52 .

[0085] When there are two independent wires at the common line end of the three phases, one of the two wires is clamped in the second clamping groove 53 of the first common terminal 51 , and the other is clamped in the second clamping groove 53 of the second common terminal 52 .

[0086] Reference Figure 1 , Figure 6 and Figure 7In some embodiments, the second mounting portion 26 is further provided with a plurality of second avoidance grooves 262 for the common wire terminals 32 to pass through, and the second avoidance grooves 262 penetrate two opposite side walls of the second mounting groove 261. The second avoidance grooves 262 limit the position of the common wire terminals 32 so that the first common terminal 51 and the second common terminal 52 can pierce the outer sheath of the corresponding common wire terminals 32.

[0087] In some other embodiments, two of the U-phase common line terminal 32, the V-phase common line terminal 32 and the W-phase common line terminal 32 are integrated wires, that is, the common line terminals of the three phases have two independent wires. The common conductive member 5 is provided with only one common terminal, and both wires are electrically connected to the common terminal. Through the above technical solution, the structural size of the common conductive member 5 is further reduced.

[0088] Reference Figure 1 and Figure 7 In some specific embodiments of the present invention, the stator core 1 includes six teeth, which are evenly spaced along the circumference of the stator core 1. The insulating frame 2 is correspondingly provided with six winding positions 21, and the plurality of winding positions 21 correspond to the plurality of teeth one by one, and each winding position 21 is jacketed on the corresponding tooth. The six winding positions 21 along the circumference of the stator core 1 are: the first winding position 211, the second winding position 212, the third winding position 213, the fourth winding position 214, the fifth winding position 215 and the sixth winding position 216. The wires are respectively wound at the six winding positions 21 to form six windings of the coil winding 3, wherein the windings at the first winding position 211 and the fourth winding position 214 are both V-phase windings, the windings at the second winding position 212 and the fifth winding position 215 are both W-phase windings, and the windings at the third winding position 213 and the sixth winding position 216 are both U-phase windings.

[0089] The steps of assembling the stator assembly 100 in the embodiment of the present invention include:

[0090] S1, setting the insulating frame 2 on the stator core 1.

[0091] S2, winding is performed on the insulating skeleton 2, and the specific winding method is: the wire first enters the W-phase slot 2213, and then enters the second winding position 212 for winding. After completing the winding of the second winding position 212, it is routed to the fifth winding position 215 through the wire slot 24 and the first routing space 25 for winding. After completing the winding of the fifth winding position 215, it enters a second avoidance slot 262, and then enters the fourth winding position 214 for winding, and then passes through the wire slot 24 and the first routing space 25 to route to the first winding position 211 for winding, and then enters the V-phase slot 2212, and then enters the U-phase slot 2211, and then enters the sixth winding position 216 for winding. After completing the winding of the sixth winding position 216, it is routed to the third winding position 213 through the wire slot 24 and the first routing space 25. After completing the winding of the third winding position 213, it enters another second avoidance slot 262, that is, the winding on the insulating skeleton 2 is completed.

[0092] S3, install the connector terminal 4 and the common conductive member 5. Install three wiring terminals 42 and one grounding terminal 43 on the first mounting portion 22, the three wiring terminals 42 are installed in the U-phase slot 2211, the V-phase slot 2212 and the W-phase slot 2213, and pierce the outer sheaths of the wires in the U-phase slot 2211, the V-phase slot 2212 and the W-phase slot 2213 respectively, so that the three wiring terminals 42 are respectively electrically connected to the wires in the U-phase slot 2211, the V-phase slot 2212 and the W-phase slot 2213, and then install the common conductive member 5 on the second mounting portion 26, the first common terminal 51 and the second common terminal 52 respectively pierce the outer sheaths of the wires in the two second avoidance slots 262, so that the first common terminal 51 and the second common terminal 52 are respectively electrically connected to the wires in the two second avoidance slots 262;

[0093] S4, cutting off the wire connecting the U-phase slot 2211 and the V-phase slot 2212.

[0094] The above technical solution can realize that one wire can be wound around all the winding positions 21 at one time, thereby effectively improving the winding efficiency of the stator assembly 100 .

[0095] The motor according to the embodiment of the present invention includes: the stator assembly 100 in the above technical solution.

[0096] According to the motor of the embodiment of the present invention, the coil winding 3 can be directly electrically connected to the external application end through the terminal block 42, without the need to use a control board or a transition piece such as a copper busbar, so that the structure of the stator assembly 100 is simpler, and the cost of the motor is reduced. In addition, the terminal block 42 can pierce the outer sheath of the connecting wire end 31 through the wire clamping portion 421 to be electrically connected to the connecting wire end 31, which reduces the difficulty of electrically connecting the coil winding 3 to the terminal block 42 and further reduces the cost of the motor.

[0097] Reference Figure 8The water pump 600 according to an embodiment of the present invention comprises: a pump housing 6, an impeller and a motor 7. The pump housing 6 defines or participates in defining an inner cavity, and the pump housing 6 is further provided with a liquid inlet 61 and a liquid outlet 62 communicated with the inner cavity, and the impeller is rotatably disposed in the inner cavity. When the fluid enters the inner cavity through the liquid inlet 61, the impeller rotates to drive the fluid in the inner cavity to flow to the liquid outlet 62 for discharge.

[0098] The motor 7 is the motor 7 in the above technical solution, and the motor 7 also includes a rotor assembly coupled with the stator assembly 100, and the rotor assembly is in driving connection with the impeller. When the motor 7 is connected to the external application end through the plurality of connector terminals 4, the external application end provides power to the stator assembly 100 so that the stator assembly 100 generates a changing magnetic field to drive the rotor assembly to rotate, and the rotor assembly drives the impeller to rotate, thereby realizing that the water pump 600 drives the fluid to flow.

[0099] According to the water pump 600 of the embodiment of the present invention, the coil winding 3 of its motor 7 can be directly electrically connected to the external application end through the terminal block 42, without the need to use a control board or a transition piece such as a copper busbar, so that the structure of the stator assembly 100 is simpler, and the cost of the water pump 600 is reduced. In addition, the terminal block 42 can pierce the outer sheath of the connecting wire end 31 through the wire clamping portion 421 to be electrically connected to the connecting wire end 31, which reduces the difficulty of electrically connecting the coil winding 3 to the terminal block 42, and further reduces the cost of the water pump 600.

[0100] Reference Fig. 9 , the vehicle 700 according to the embodiment of the present invention includes the water pump 600 described in the above technical solution. Here, the vehicle 700 can be a new energy vehicle. In some embodiments, the new energy vehicle can be a pure electric vehicle with a motor as the main driving force. In other embodiments, the new energy vehicle can also be a hybrid vehicle with an internal combustion engine and a motor as the main driving force. Regarding the internal combustion engine and the motor mentioned in the above embodiments that provide driving power for the new energy vehicle, wherein the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the method of providing electrical energy to the motor can use a power battery, a hydrogen fuel cell, etc., which is not specifically limited here. It should be noted that this is only an exemplary description of the structure of new energy vehicles, etc., and it does not limit the scope of protection of the present invention.

[0101] According to the vehicle 700 of the embodiment of the present invention, the coil winding 3 can be directly electrically connected to the external application end through the terminal block 42, without the need to use a control board or a transition piece such as a copper busbar, so that the structure of the stator assembly 100 is simpler, and the cost of the vehicle 700 is reduced. In addition, the terminal block 42 can pierce the outer sheath of the connecting wire end 31 through the wire clamping portion 421 to be electrically connected to the connecting wire end 31, which reduces the difficulty of electrically connecting the coil winding 3 to the terminal block 42, and further reduces the cost of the vehicle 700.

[0102] 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 present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0103] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stator assembly, characterized in that: include: stator core; An insulating frame, the insulating frame is arranged on the stator core, and the insulating frame is provided with a first mounting portion; A coil winding, the coil winding being wound around the insulating frame, the coil winding being provided with a plurality of connecting wire ends located at the first mounting portion; A plurality of connector terminals are provided on the first mounting portion, each of the connector terminals is provided with a connection end portion suitable for being electrically connected to an external application end, at least a portion of the connector terminals are wiring terminals, the wiring terminals include a wire clamping portion, the wire clamping portion is provided with a first wire clamping groove for passing the wiring end, and at least a portion of the wire clamping portion is suitable for piercing the outer sheath of the wiring end to electrically connect to the wiring end.

2. The stator assembly according to claim 1, characterized in that The first mounting portion is provided with a first mounting groove, the plurality of connecting wire ends extend into the first mounting groove, and the wire clamping portion extends into the first mounting groove to pierce the outer sheath.

3. The stator assembly according to claim 2, characterized in that: The first installation slot is a plurality of sub-slots arranged at intervals, and the plurality of connecting wire ends extend into the plurality of sub-slots in a one-to-one correspondence.

4. The stator assembly according to claim 2, characterized in that: The connection terminal is provided with a stop portion, and the stop portion stops at the end surface of the first mounting portion to limit the displacement of the connection terminal in the axial direction of the stator core.

5. The stator assembly according to claim 2, characterized in that: The wire clamping portion is detachably matched with the first mounting groove.

6. The stator assembly according to claim 1, characterized in that The plurality of connector terminals further include a ground terminal, and the ground terminal is electrically connected to the stator core.

7. The stator assembly according to claim 6, characterized in that The stator core is provided with an insertion slot, and the grounding terminal is provided with a plug-in portion, and the plug-in portion is inserted into the insertion slot.

8. The stator assembly according to claim 7, characterized in that The ground terminal further includes a first limiting surface disposed toward the stator core, wherein the first limiting surface abuts against the insulating frame to limit the displacement of the plug-in portion in the axial direction of the stator core.

9. The stator assembly according to claim 8, characterized in that The insulating frame also includes a limit baffle, which abuts against the grounding terminal to limit the displacement of the grounding terminal in the radial direction of the stator core.

10. The stator assembly according to any one of claims 1 to 9, characterized in that: The coil winding includes a multi-phase winding, the insulating skeleton includes multiple winding positions, and the insulating skeleton is also provided with a first wiring space, the first wiring space is provided with wire grooves corresponding to the winding positions of different phases, and the conductor of one phase winding is routed to the winding position of another phase through the wire grooves and the first wiring space.

11. The stator assembly according to claim 10, characterized in that The first wiring space and the first mounting portion are located on two axial sides of the insulating frame.

12. The stator assembly according to claim 10, characterized in that Also includes: A common conductive member is provided with a first common terminal and a second common terminal which are electrically connected, wherein the conductors of the windings of two phases are electrically connected to the first common terminal, and the conductors of the windings of another phase are electrically connected to the second common terminal.

13. The stator assembly according to claim 12, characterized in that The first common terminal and the second common terminal are both provided with a second wire clamping groove for passing a wire, and the first common terminal and the second common terminal are both suitable for piercing an outer sheath of the wire to be electrically connected to the wire.

14. A motor, characterized in that: include: A stator assembly according to any one of claims 1 to 13.

15. A water pump, characterized in that: include: A pump housing, wherein the pump housing defines or participates in defining an inner cavity, and the pump housing is further provided with a liquid inlet and a liquid outlet communicated with the inner cavity; an impeller, the impeller being rotatably disposed in the inner cavity; The motor is the motor according to claim 14, the motor comprises a rotor assembly, and the rotor assembly is drivingly connected to the impeller.

16. A vehicle, characterized in that: Comprising a water pump according to claim 15.

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