Motor, water pump and vehicle

Abstract

The invention discloses a motor, a water pump and a vehicle, a stator assembly comprises a stator iron core, an insulation framework and a coil winding, the insulation framework is arranged on the stator iron core, and the coil winding is wound on the insulation framework; the plurality of connector terminals are arranged on the end face of the insulating framework in the axial direction of the stator core, each connector terminal is provided with an external connecting end, at least part of the connector terminals are wiring terminals, and the wiring terminals are electrically connected with the coil winding; the casing comprises a first part and a second part which are integrally formed, the first part wraps the stator assembly, the second part wraps the plurality of connector terminals and defines a plug-in groove, and the external connecting end is located in the plug-in groove. According to the motor 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 motor is simpler, the shell of the stator assembly and the shell of the connector are integrally formed, the assembly procedures of the motor are reduced, the assembly cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to 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 and a connector. The stator assembly is provided with a coil. When the coil of the stator assembly is energized, a changing magnetic field is generated. When a magnetic rotor assembly is provided in the energized stator assembly, the stator assembly drives the rotor assembly to rotate continuously through the changing magnetic field. The connector includes terminals. The coil on the stator assembly is connected to the terminals of the connector through a control board or a copper busbar. The terminals of the connector are suitable for connecting to an external application end.

[0003] The connector in the related technology is usually a separate part. When assembling the motor, the terminals of the connector need to be connected to the terminal blocks of the stator through a PCB control board or a copper busbar. The housing of the connector also needs to be connected to the casing of the motor by welding, snap-fitting or bolt locking. The sealing problem between the connecting parts also needs to be solved. The motor has a complex structure, low reliability and a relatively cumbersome assembly process. Summary of the invention

[0004] 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 motor, in which the coil winding can be directly electrically connected to the external application end through the terminal block, so that the structure of the motor is simpler, the housing of the stator assembly and the housing of the connector are integrally formed, and the original assembly processes such as welding, snapping, and bolt locking of the connector and the stator housing are eliminated, thereby reducing the cost of the motor.

[0005] The present invention also provides a water pump comprising the motor.

[0006] The present invention also provides a vehicle comprising the water pump.

[0007] According to an embodiment of the present invention, the motor includes: a stator assembly, the stator assembly includes: a stator core, an insulating frame and a coil winding, the insulating frame is arranged on the stator core, and the coil winding is wound on the insulating frame; a plurality of connector terminals, in the axial direction of the stator core, the plurality of connector terminals are arranged on the end surface of the insulating frame and each of the connector terminals is provided with an external connection end, at least a part of the connector terminals are wiring terminals, and the wiring terminals are electrically connected to the coil winding; a casing, the casing includes a first part and a second part that are integrally formed, the first part wraps the stator assembly, the second part wraps the plurality of connector terminals and defines a plug-in slot, and the external connection end is located in the plug-in slot.

[0008] According to the motor 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 a control board or copper bar or other transition pieces for switching, so that the structure of the stator assembly is simpler and the cost of the stator assembly is reduced. In addition, the housing (i.e., the first part) of the stator assembly and the housing (i.e., the second part) of the connector are integrally formed. Compared with the related art, the motor provided by the present invention eliminates the process of connecting the housing of the stator assembly and the housing of the connector, which not only simplifies the difficulty of assembling the motor, but also reduces the cost of the motor.

[0009] In some embodiments, a mounting cavity is provided in the first portion, the mounting cavity is located radially inward of the stator assembly, the mounting cavity is used to mount a rotor assembly, and the rotor assembly is coupled to the stator assembly.

[0010] In some embodiments, the mounting cavity is provided with a mounting opening for mounting the rotor assembly, and the mounting opening is located on a side of the first portion away from the plug-in slot.

[0011] In some embodiments, the mounting cavity is provided with a mounting opening for mounting the rotor assembly, and the outer surface of the supporting side wall of the mounting cavity opposite to the mounting opening is provided with a protruding reinforcing protrusion; the supporting side wall is provided with a second mounting groove extending into the reinforcing protrusion; and the end of the rotating shaft cooperating with the rotor assembly is located in the second mounting groove.

[0012] In some embodiments, the housing further includes a reinforcing rib disposed between the reinforcing protrusion and an outer side wall of the first portion.

[0013] In some embodiments, the housing further includes a fixing portion, the fixing portion is integrally formed with the first portion or the second portion, and the fixing portion is provided with a mounting hole.

[0014] In some embodiments, the fixing portion is configured as an annular structure that is externally mounted on the first portion, and an extending direction of the mounting hole is parallel to an axial direction of the stator assembly.

[0015] In some embodiments, the outer surface of the second portion is provided with a snap-fitting protrusion, and the snap-fitting protrusion is suitable for snap-fitting with the external application end.

[0016] In some embodiments, an outer peripheral wall of the housing is provided with an insert hole, and the motor further includes a blocking member, which blocks the insert hole.

[0017] In some embodiments, the housing is provided with a sealing groove arranged around the insert hole, the sealing groove is communicated with the insert hole, and a portion of the blocking member is located in the sealing groove.

[0018] In some embodiments, the sealing member is a sealant layer.

[0019] In some embodiments, the sealing groove includes a recessed portion and a communicating portion, the recessed portion is recessed toward the interior of the housing and is spaced apart from the insert hole, and the recessed portion is communicated with the insert hole through the communicating portion.

[0020] In some embodiments, the plurality of connector terminals further include a ground terminal, and the ground terminal is electrically connected to the stator core.

[0021] In some embodiments, the stator core is provided with an insertion slot, and the ground terminal is inserted into the insertion slot.

[0022] In some embodiments, the ground terminal further includes a second limiting surface disposed toward the stator core, and the second limiting surface abuts against the insulating frame to limit the displacement of the plug-in portion in the axial direction of the stator core.

[0023] 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.

[0024] In some embodiments, the coil winding is provided with a plurality of connecting wire ends located on the insulating skeleton, and the connecting terminal includes 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 with the connecting wire end.

[0025] In some embodiments, the insulating frame is provided with a mounting protrusion, a first mounting groove is provided in the mounting protrusion, the multiple connecting wire ends extend into the first mounting groove, and the wire clamping part extends into the first mounting groove to pierce the outer sheath.

[0026] In some embodiments, the connection terminal is provided with a stop portion, and the stop portion abuts against an end surface of the mounting portion to limit the displacement of the connection terminal in the axial direction of the stator core.

[0027] A water pump according to an embodiment of the present invention comprises: a pump casing, the pump casing defines or participates in defining an inner cavity, the pump casing is also provided with a liquid inlet and a liquid outlet communicated with the inner cavity; an impeller, the impeller is rotatably arranged in the inner cavity; and a motor, the motor is the motor described in the above technical solution, the motor comprises a rotor assembly, and the rotor assembly is drivingly connected to the impeller.

[0028] In some embodiments, the inner cavity is defined between the pump housing and the casing; the first portion defines an installation cavity for installing the rotor assembly and an installation port communicating with the installation cavity, and the installation port is communicated with the inner cavity.

[0029] A vehicle according to an embodiment of the present invention comprises the water pump in the above technical solution.

[0030] 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

[0031] 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:

[0032] Figure 1 is a schematic diagram of a water pump according to an embodiment of the present invention;

[0033] Figure 2 is a partial cross-sectional view of a water pump according to some embodiments of the present invention;

[0034] Figure 3 is a top view of a water pump according to an embodiment of the present invention;

[0035] Figure 4 is a partial cross-sectional view of a water pump according to some other embodiments of the present invention;

[0036] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0037] Figure 6 is a schematic diagram of the stator assembly;

[0038] Figure 7 is a front view of the stator assembly;

[0039] Figure 8 is a partial cross-sectional view of a stator assembly;

[0040] Fig. 9 It is a schematic diagram of the structure of the terminal block;

[0041] Fig.10 It is a schematic diagram of the structure of the grounding terminal;

[0042] Fig.11 is a schematic diagram of a vehicle according to an embodiment of the present invention.

[0043] Figure numerals: 100, motor; 200, water pump; 300, vehicle; 1, stator assembly; 11, stator core; 111, yoke; 112, insertion slot; 12, insulation frame; 121, winding position; 122, mounting protrusion; 1221, first mounting slot; 12211, sub-slot; 1222, first avoidance slot; 123, limit baffle; 13, coil winding; 131, connecting wire terminal; 14, positioning slot; 2, connector terminal; 21, external connection terminal; 22, wiring terminal; 221, wire clamping part; 2211, first wire clamping slot; 2212, clamping block; 222, stop part; 23, grounding terminal; 231, plug-in part; 232, second Limiting surface; 3, casing; 31, first part; 311, insert hole; 312, sealing groove; 3121, recessed part; 3122, connecting part; 3123, second side wall; 3124, fourth side wall; 313, mounting cavity; 3131, supporting side wall; 314, reinforcing protrusion; 315, reinforcing rib; 316, second mounting groove; 317, fixing part; 3171, mounting hole; 318, snap-in protrusion; 32, second part; 321, plug-in groove; 4, blocking piece; 41, main body; 42, sealing part; 421, first side wall; 422, third side wall; 5, pump casing; 51, liquid inlet; 52, liquid outlet; 6, rotor assembly; 7, rotating shaft. DETAILED DESCRIPTION

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Reference below Figure 1-Figure 11 A motor 100 according to an embodiment of the present invention is described.

[0048] Reference Figure 1 , Figure 2 and Figure 6 The motor 100 according to the embodiment of the present invention includes a stator assembly 1, and the stator assembly 1 includes: a stator core 11, an insulating frame 12 and a coil winding 13. The stator core 11 includes a yoke 111 and a plurality of teeth arranged on the yoke 111; the insulating frame 12 is arranged on the stator core 11, and the insulating frame 12 includes a plurality of winding positions 121, and the plurality of winding positions 121 correspond to the plurality of teeth one by one, and each winding position 121 is jacketed on the corresponding tooth; the coil winding 13 is formed by winding a wire on the winding position 121 of the insulating frame 12, and when the coil winding 13 is energized, a magnetic field is generated in the stator assembly 1.

[0049] The motor 100 in the embodiment of the present invention further includes a plurality of connector terminals 2. In the axial direction of the stator core 11, the plurality of connector terminals 2 are arranged on the end surface of the insulating frame 12 and each connector terminal 2 is provided with an external connection end 21. The external connection end 21 of the connector terminal 2 is used to connect to the external application end. At least a portion of the plurality of connector terminals 2 is a wiring terminal 22, and the wiring terminal 22 is electrically connected to the coil winding 13. In other words, the coil winding 13 can be directly electrically connected to the external application end through the wiring terminal 22, without the need to use a control board or a transition piece such as a copper bar, so that the structure of the stator assembly 1 is simpler and the cost of the stator assembly 1 is reduced. The motor 100 in the embodiment of the present invention further includes a housing 3, and the housing 3 includes an integrally formed first part 31 and a second part 32, the first part 31 wraps the stator assembly 1, and the second part 32 wraps the plurality of connector terminals 2. The second part 32 also defines a plug-in slot 321. When the motor 100 is connected to the external application end, at least a portion of the external application end is located in the plug-in slot 321 to be electrically connected to the connector terminal 2. The external application end provides power to the motor, and the external application end energizes the coil winding 13 through the connection terminal 22 , thereby generating a magnetic field in the stator assembly 1 .

[0050] According to the motor 100 of the embodiment of the present invention, the coil winding 13 can be directly electrically connected to the external application end through the terminal 22, without the need to use a control board or a transition piece such as a copper bar, so that the structure of the motor is simpler and the cost of the stator assembly 1 is reduced. In addition, the housing of the stator assembly 1 (i.e., the first part 31) and the housing of the connector (i.e., the second part 32) are integrally formed. Compared with the related art, the motor 100 provided by the present invention eliminates the process of connecting the housing of the stator assembly 1 and the housing of the connector, which not only simplifies the assembly difficulty of the motor 100, but also reduces the cost of the motor 100.

[0051] In some embodiments, the insulating frame 12 is integrally molded with the stator core 11 by injection molding, and in other embodiments, the insulating frame 12 can be plugged or bonded to the stator core 11. Other situations are also possible, as long as the insulating frame 12 is disposed on the stator core 11.

[0052] Reference Figure 7 , Figure 8 and Fig. 9 In some embodiments, the coil winding 13 is provided with a plurality of connecting wire ends 131, and the plurality of connecting wire ends 131 are all used to be electrically connected to the wiring terminal 22. The plurality of connecting wire ends 131 are all located on the insulating skeleton 12 to facilitate connection with the wiring terminal 22. The coil winding 13 is wound by a wire, and the 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 131 of the coil winding 13 and the wiring terminal 22, it is necessary to break the outer sheath of the connecting wire end 131. The wiring terminal 22 in the embodiment of the present invention includes a wire clamping portion 221, and the wire clamping portion 221 is provided with a first wire clamping groove 2211 for passing the connecting wire end 131, and at least a portion of the wire clamping portion 221 is suitable for piercing the outer sheath of the connecting wire end 131 to electrically connect with the connecting wire end 131. That is, when the connecting wire end 131 enters the first wire clamping groove 2211 , the wire clamping portion 221 can pierce the outer sheath of the connecting wire end 131 , so that the conductive portion of the connecting wire end 131 is electrically connected to the wire clamping portion 221 .

[0053] In the above technical solution, the connecting terminal 22 can pierce the outer layer of the connecting wire end 131 through the wire clamping portion 221 to be electrically connected to the connecting wire end 131, thereby reducing the difficulty of electrically connecting the coil winding 13 to the connecting terminal 22 and further reducing the cost of the stator assembly 1.

[0054] In some other embodiments, the connection method between the connection terminal 22 and the connection wire terminal 131 may also be welding, bonding, etc.

[0055] In some embodiments, the insulating frame 12 is provided with a mounting protrusion 122, a first mounting groove 1221 is provided in the mounting protrusion 122, a plurality of connecting wire ends 131 extend into the first mounting groove 1221, and the wire clamping portion 221 extends into the first mounting groove 1221 to pierce the outer sheath.

[0056] In the above technical solution, the connecting wire end 131 extends into the first mounting groove 1221, limiting the position of the connecting wire end 131, so that the wire clamping portion 221 can be inserted into the first mounting groove 1221 to pierce the outer sheath of the connecting wire end 131, further improving the convenience of electrical connection between the coil winding 13 and the terminal 22. In addition, in the embodiment of the present invention, the mounting protrusion 122 is arranged on the axial end face of the insulating frame 12, and the first mounting groove 1221 is arranged on the axial end face of the mounting protrusion 122. The terminal 22 can be inserted into the first mounting groove 1221 to maintain the state of extending in the axial direction of the stator assembly 1, without the need for pre-bending the terminal 22, thereby reducing the process and the cost of the motor 100.

[0057] In some further embodiments, the first installation groove 1221 is composed of a plurality of sub-grooves 12211 arranged at intervals, and the plurality of connection wire ends 131 extend into the plurality of sub-grooves 12211 in a one-to-one correspondence.

[0058] Because the multiple connection wire ends 131 correspond to multiple different phase wires, in the above scheme, the multiple connection wire ends 131 extend into the multiple sub-slots 12211 one by one, so as to distinguish the phase wires corresponding to different connection wire ends 131, and the multiple sub-slots 12211 are arranged at intervals, which effectively reduces the possibility of electrical connection between different connection wire ends 131. The multiple sub-slots 12211 arranged at intervals are also conducive to the independent installation of multiple wiring terminals 22, further reducing the difficulty of assembling the stator assembly 1.

[0059] In some specific embodiments, the position of each sub-groove 12211 of the mounting protrusion 122 is provided with a first avoidance groove 1222 for the connection wire end 131 to pass through, the first avoidance groove 1222 is connected to the corresponding sub-groove 12211, and the first avoidance groove 1222 penetrates two opposite side walls of the corresponding sub-groove 12211. The connection wire end 131 is located in the corresponding first avoidance groove 1222, which limits the position of the connection wire end 131, so that the outer sheath of the connection wire end 131 can be pierced when the wire clamping part 221 is inserted into the corresponding sub-groove 12211.

[0060] In some embodiments, the terminal 22 is provided with a stop portion 222, which stops at the end face of the mounting protrusion 122 to limit the axial displacement of the terminal 22 in the stator core 11. When the terminal 22 is installed on the first mounting groove 1221, the stop portion 222 stops at the end of the mounting protrusion 122, indicating that the terminal 22 is installed in place, thereby improving the installation accuracy of the terminal 22 and the stability of the terminal 22 during installation.

[0061] In some specific embodiments, the abutting portion 222 of the connection terminal 22 is disposed between the external connection end 21 and the wire clamping portion 221 , and the abutting portion 222 is adapted to abut against an end surface of the mounting protrusion 122 provided with the first mounting groove 1221 .

[0062] In some embodiments, the wire clamping portion 221 is detachably matched with the first mounting groove 1221. When there is a problem in the connection between the wire clamping portion 221 and the connecting wire end 131, the wire clamping portion 221 can be removed from the first mounting groove 1221 for inspection, which is beneficial to the assembly and maintenance of the stator assembly 1.

[0063] In some embodiments, a first stopper is provided on the clamping portion 221, and a second stopper is provided in the first mounting groove 1221, and the first stopper and the second stopper are engaged with each other. When the connection terminal 22 is installed on the first mounting groove 1221, the stopper 222 abuts against the end of the mounting protrusion 122, and the first stopper and the second stopper are engaged with each other, thereby fixing the connection terminal 22 on the mounting protrusion 122, and effectively improving the stability of the connection terminal 22.

[0064] In some specific embodiments, the first limiting member is configured as a clamping block 2212 disposed on the peripheral side of the clamping portion 221, and the second limiting member is a first limiting surface disposed on the inner wall of the first mounting groove 1221, and the first limiting surface is disposed toward a side away from the opening of the first mounting groove 1221. When the clamping block 2212 abuts against the first limiting surface, the connection terminal 22 is restricted from being separated from the first mounting groove 1221, thereby effectively improving the stability of the connection terminal 22.

[0065] In some embodiments, the wire clamping portion 221 and the first mounting groove 1221 are engaged with each other through a first limit member and a second limit member. In other embodiments, the wire clamping portion 221 can be detachably engaged with the first mounting groove 1221 through screws. Other situations are also possible as long as the wire clamping portion 221 is detachably engaged with the first mounting groove 1221.

[0066] Reference Figure 6 , Figure 8 and Fig.10In some embodiments, the plurality of connector terminals 2 further include a ground terminal 23 , and the ground terminal 23 is electrically connected to the stator core 11 to improve the safety of the stator assembly 1 .

[0067] In some implementations, the stator core 11 is provided with an insertion slot 112, and the grounding terminal 23 is provided with a plug-in portion 231, which is inserted into the insertion slot 112 to achieve electrical connection between the stator core 11 and the grounding terminal 23, and also improve the stability of the connection between the stator core 11 and the grounding terminal 23.

[0068] In some specific embodiments, a portion of the insulating frame 12 is covered on a side of the stator core 11 where the insertion slot 112 is provided, and the plug-in portion 231 passes through the insulating frame 12 and is inserted into the insertion slot 112 and has an interference fit with the insertion slot 112 .

[0069] In some embodiments, the ground terminal 23 further includes a second limiting surface 232 disposed toward the stator core 11 , and the second limiting surface 232 abuts against the insulating frame 12 to limit the axial displacement of the plug-in portion 231 in the stator core 11 .

[0070] When the plug-in portion 231 is inserted into the insertion slot 112 , the second limiting surface 232 abuts against the insulating frame 12 , indicating that the grounding terminal 23 is installed in place, thereby improving the installation accuracy of the grounding terminal 23 .

[0071] In some specific embodiments, a portion of the ground terminal 23 is bent to form a second limiting surface 232 disposed toward the mounting protrusion 122 , and the second limiting surface 232 abuts against the mounting protrusion 122 .

[0072] In some embodiments, the insulating frame 12 further includes a limiting baffle 123 , which abuts against the grounding terminal 23 to limit the displacement of the grounding terminal 23 in the radial direction of the stator core 11 , thereby further improving the stability of the grounding terminal 23 .

[0073] In some specific embodiments, at least two limit baffles 123 are provided, and the two limit baffles 123 are arranged at intervals along the radial direction of the stator core 11, and the two limit baffles 123 are distributed on both sides of the grounding terminal 23, thereby limiting the movement of the grounding terminal 23 toward the radial inside or radial outside of the stator core 11.

[0074] In some embodiments, the multiple connector terminals 2 include multiple wiring terminals 22 and a ground terminal 23, and the external connection ends 21 of the multiple wiring terminals 22 and the external connection ends 21 of the ground terminal 23 are arranged at equal intervals to facilitate the multiple external connection ends 21 to cooperate with the external application ends.

[0075] In some embodiments, the coil winding 13 includes: a U-connected terminal, a V-connected terminal, and a W-connected terminal; the plurality of sub-slots 12211 of the mounting protrusion 122 include: a U-phase slot, a V-phase slot, and a W-phase slot; the plurality of terminals 22 include: a U-phase terminal, a V-phase terminal, and a W-phase terminal. The U-connected terminal is located in the U-phase slot and connected to the U-phase terminal, the V-connected terminal is located in the V-phase slot and connected to the V-phase terminal, and the W-connected terminal is located in the W-phase slot and connected to the W-phase terminal.

[0076] The positions, extension directions and arrangement of the multiple connector terminals 2 are designed according to the connector model of the external application end, so that the multiple connector terminals 2 of the motor 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 grounding terminals is also different, the arrangement of the multiple connector terminals 2 of the motor of the present application may be different in different embodiments. For example, in one embodiment of the present invention, the multiple connector terminals 2 are arranged in parallel in a straight line, and the arrangement order is U, V, W, grounding, and the spacing between two adjacent connector terminals 2 is 4mm. In some other embodiments, the arrangement order of the multiple connector terminals 2 can also be: U, W, V, grounding or U, W, grounding, V, etc.

[0077] Reference Figure 8 In some embodiments, multiple connector terminals 2 are arranged on the axial end face of the insulating skeleton 12, and each connector terminal 2 is provided with an external connection end 21. The external connection ends 21 of the multiple connector terminals 2 extend along the axial direction of the insulating skeleton 12 so that the external application end can be connected to the motor 100 from the axial direction of the motor 100.

[0078] In some other embodiments, multiple connector terminals 2 are arranged on the axial end face of the insulating skeleton 12, and each connector terminal 2 is provided with an external connection end 21. The connector terminal 2 is an L-shaped structure as a whole. A portion of the connector terminal 2 is installed on the insulating skeleton 12, and the external connection end 21 of the connector terminal 2 extends radially along the insulating skeleton 12, so that the external application end can be connected to the motor 100 from the radial direction of the motor 100.

[0079] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, a mounting cavity 313 is provided in the first portion 31, and the mounting cavity 313 is located radially inward of the stator assembly 1. The mounting cavity 313 is used to mount the rotor assembly 6, and the rotor assembly 6 is coupled with the stator assembly 1. When the rotor assembly 6 is mounted in the mounting cavity 313, the stator assembly 1 can be connected to an external application end through a plurality of connector terminals 2, so that a changing magnetic field is generated inside the stator assembly 1 to drive the rotor assembly 6 to rotate.

[0080] In the above technical solution, an installation cavity 313 for installing the rotor assembly 6 is provided in the first part 31 to protect the rotor assembly 6 inside the first part 31, avoid the influence of external objects on the rotor assembly 6, and improve the rotation stability of the rotor assembly 6; the rotor assembly 6 can also be supported by the inner wall of the installation cavity 313, reducing the difficulty of installing the rotor assembly 6.

[0081] In some specific embodiments, the installation cavity 313 is provided with an installation opening for installing the rotor assembly 6, and the installation opening is located on the side of the first part 31 away from the plug-in slot 321, so that the power output end of the motor 100 is also located on the side of the first part 31 away from the plug-in slot 321.

[0082] In the above technical solution, the installation port is arranged on the side of the first part 31 away from the plug-in slot 321, so that the circuit connection end and the power output end of the motor 100 are distributed at both ends of the axial direction of the motor 100 without affecting each other, thereby improving the convenience of using the motor 100.

[0083] Reference Figure 1 , Figure 2 and Figure 3 In some further embodiments, the inner wall of the installation cavity 313 facing the installation opening is a supporting side wall 3131, and a reinforcing protrusion 314 is provided on the outer surface of the supporting side wall 3131. The strength of the supporting side wall 3131 is enhanced by the reinforcing protrusion 314, thereby ensuring the firmness of the supporting side wall 3131. A second installation groove 316 is provided on the side of the supporting side wall 3131 facing the installation opening, and the second installation groove 316 extends into the reinforcing protrusion 314. The end of the rotating shaft 7 matched with the rotor assembly 6 is located in the second installation groove 316.

[0084] In the above technical solution, by providing the second mounting groove 316 on the inner wall of the mounting cavity 313, the end of the rotating shaft 7 can be mounted in the second mounting groove 316, thereby improving the stability of the rotor assembly 6. The second mounting groove 316 also extends into the reinforcing protrusion 314, thereby deepening the depth of the second mounting groove 316, thereby further improving the stability of the rotating shaft 7 and the rotor assembly 6.

[0085] Reference Figure 1 , Figure 2 and Figure 3 In some specific embodiments, the end of the rotating shaft 7 is inserted into the second mounting groove 316 and fixedly connected to the supporting side wall 3131, and the rotor assembly 6 is rotatably disposed on the rotating shaft 7. In some other embodiments, the rotor assembly 6 can be fixedly connected to the rotating shaft 7, and the end of the rotating shaft 7 can be rotatably disposed in the second mounting groove 316.

[0086] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the housing 3 further includes a reinforcing rib 315 , which is disposed between the reinforcing protrusion 314 and the outer side wall of the first portion 31 , further enhancing the strength of the housing 3 and ensuring the safety of the motor 100 .

[0087] In some embodiments, the housing 3 also includes a fixing portion 317, which is integrally formed with the first portion 31 or the second portion 32. The fixing portion 317 is provided with a mounting hole 3171, and the motor 100 can be fixedly connected to the external structure by fasteners passing through the mounting hole 3171, thereby improving the convenience of installing the motor 100.

[0088] Reference Figure 1 , Figure 2 and Figure 3 In some specific embodiments, the fixing portion 317 is constructed as an annular structure that is externally mounted on the first portion 31. The extending direction of the mounting hole 3171 is parallel to the axial direction of the stator assembly 1. A plurality of mounting holes 3171 are provided, and the plurality of mounting holes 3171 are distributed at circumferential intervals around the first portion 31 to improve the stability of the connection between the motor 100 and the external structure.

[0089] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the outer surface of the second part 32 is provided with a snap-fit ​​protrusion 318, and the snap-fit ​​protrusion 318 is suitable for snap-fitting with the external application end. When the motor 100 is connected to the external application end, part of the external application end is inserted into the plug slot 321 to be electrically connected to the plurality of connector terminals 2. At this time, the snap-fit ​​protrusion 318 on the outer surface of the second part 32 is snap-fitted with the external application end, thereby improving the stability of the connection between the motor 100 and the external application end.

[0090] Reference Figure 4 , Figure 5 and Figure 6 In some embodiments, the housing 3 is provided on the stator assembly 1 and the plurality of connector terminals 2 by an injection molding process, so that the first portion 31 and the second portion 32 are integrally formed. During the process of injection molding the housing 3, an insert is required to fix the stator assembly 1, and after the injection molding is completed, the insert needs to be removed, and an insert hole 311 appears on the housing 3 after the insert is removed. In the embodiment of the present invention, the motor 100 further includes a plugging member 4, and the plugging member 4 plugs the insert hole 311.

[0091] In the above technical solution, the insert hole 311 is blocked by the blocking member 4 , thereby reducing the risk of external water vapor entering the insert hole 311 and corroding the stator assembly 1 , thereby extending the service life of the motor 100 .

[0092] In some specific embodiments, during the process of injection molding the housing 3, the stator assembly 1 is fixed by an insert, and after the injection molding is completed, the insert is withdrawn along the axial direction of the stator assembly 1, thereby forming an insert hole 311 on the end surface of the housing 3, and a blocking member 4 is provided in the insert hole 311 for blocking. The number of the insert hole 311 can be one or more.

[0093] In some further embodiments, the housing 3 is provided with a sealing groove 312 arranged around the insert hole 311 , the sealing groove 312 is communicated with the insert hole 311 , and a portion of the blocking member 4 is located in the sealing groove 312 .

[0094] Through the above technical solution, by setting a sealing groove 312 on the peripheral side of the insert hole 311, the path for water vapor to enter the insert hole 311 is extended, and a portion of the sealing member 4 is located in the sealing groove 312 surrounding the insert hole 311, further reducing the risk of external water vapor entering the insert hole 311 and corroding the stator assembly 1.

[0095] In some specific embodiments, the sealing groove 312 includes a recessed portion 3121 and a connecting portion 3122. The recessed portion 3121 is recessed toward the inside of the housing 3 and is spaced apart from the insert hole 311. The connecting portion 3122 is disposed on a side of the recessed portion 3121 away from the inside of the housing 3. The recessed portion 3121 is connected to the insert hole 311 through the connecting portion 3122. The blocking member 4 includes a main body 41 disposed in the insert hole 311 and a sealing portion 42 disposed in the sealing groove 312. The main body 41 is connected to the sealing portion 42. The sealing portion 42 is provided with a first side wall 421 facing the main body 41. The sealing groove 312 is provided with a second side wall 3123 away from the main body 41. The first side wall 421 abuts against the second side wall 3123.

[0096] The sealing portion 42 is further provided with a third side wall 422 disposed away from the main body portion 41 , and the sealing groove 312 is provided with a fourth side wall 3124 disposed toward the main body portion 41 , and the third side wall 422 abuts against the fourth side wall 3124 .

[0097] Through the above technical solution, when the working environment temperature of the motor 100 is high, the blocking member 4 expands due to heat, thereby enhancing the abutment effect between the third side wall 422 and the fourth side wall 3124, and improving the sealing effect of the blocking member 4; when the working environment temperature of the motor 100 is low, the blocking member 4 contracts due to cold, thereby enhancing the abutment effect between the first side wall 421 and the second side wall 3123, and improving the sealing effect of the blocking member 4. Therefore, through the above technical solution, when the motor 100 is in working environments with different temperatures, the blocking member 4 can ensure a good sealing effect.

[0098] In some embodiments, the blocking member 4 is constructed as a sealing adhesive layer. After the insert is removed, an insert hole 311 appears on the housing 3. Glue is poured into the insert hole 311 through a glue pouring process. When the glue solidifies, a sealing adhesive layer is formed in the insert hole 311.

[0099] The above technical solution improves the stability of the connection between the plugging member 4 and the housing 3, and the plugging member 4 can better fill the internal space of the insert hole 311, effectively ensuring the sealing effect of the plugging member 4. In some other embodiments, the plugging member 4 can also be a rubber member, a plastic member or other structures, and the present invention is not limited to this, as long as the insert hole 311 can be blocked.

[0100] Reference Figure 3 In some implementations, a positioning groove 14 is provided on the outer peripheral wall of the stator assembly 1, and the positioning groove 14 is suitable for cooperating with the insert to facilitate determining the angle of the stator assembly 1 itself, thereby avoiding the situation where the angle of the stator assembly 1 does not correspond to the angle of the housing 3 during injection molding.

[0101] The water pump 200 according to the embodiment of the present invention comprises the motor 100 in the above technical solution. The water pump 200 further comprises a pump casing and an impeller. The pump casing 5 defines or participates in defining an inner cavity. The pump casing 5 is further provided with a liquid inlet 51 and a liquid outlet 52 communicated with the inner cavity. The impeller is rotatably arranged in the inner cavity. When the fluid enters the inner cavity through the liquid inlet 51, the impeller rotates to drive the fluid in the inner cavity to flow to the liquid outlet 52 for discharge.

[0102] The motor 100 includes a stator assembly 1, which includes a stator core 11, an insulating frame 12, and a coil winding 13. The stator core 11 includes a yoke 111 and a plurality of teeth arranged on the yoke 111; the insulating frame 12 is arranged on the stator core 11, and the insulating frame 12 includes a plurality of winding positions 121, and the plurality of winding positions 121 correspond to the plurality of teeth one by one, and each winding position 121 is jacketed on the corresponding tooth; the coil winding 13 is structured such that a wire is wound around the winding position 121 of the insulating frame 12, and when the coil winding 13 is energized, a magnetic field is generated in the stator assembly 1.

[0103] The motor 100 further includes a plurality of connector terminals 2. In the axial direction of the stator core 11, the plurality of connector terminals 2 are disposed on the end surface of the insulating frame 12 and each connector terminal 2 is provided with an external connection end 21. The external connection end 21 of the connector terminal 2 is used to connect to an external application end. At least a portion of the plurality of connector terminals 2 are wiring terminals 22, and the wiring terminals 22 are electrically connected to the coil winding 13.

[0104] The motor 100 further includes a housing 3, which includes an integrally formed first portion 31 and a second portion 32, wherein the first portion 31 encloses the stator assembly 1, and the second portion 32 encloses a plurality of connector terminals 2. The second portion 32 further defines a plug-in slot 321, and when the motor 100 is connected to an external application terminal, the external application terminal is located in the plug-in slot 321 and is electrically connected to the connector terminal 2.

[0105] The motor 100 includes a rotor assembly 6 coupled with the stator assembly 1. A mounting cavity 313 is provided in the first part 31. The mounting cavity 313 is located radially inward of the stator assembly 1. The rotor assembly 6 is rotatably disposed in the mounting cavity 313. The rotor assembly 6 is connected to the impeller in a transmission manner. When the motor 100 is connected to an external application end through a plurality of connector terminals 2, the external application end provides power to the stator assembly 1 so that the stator assembly 1 generates a changing magnetic field to drive the rotor assembly 6 to rotate. The rotor assembly 6 drives the impeller to rotate, thereby realizing that the water pump 200 drives the fluid to flow.

[0106] According to the water pump 200 of the embodiment of the present invention, the coil winding 13 of the motor 100 can be directly electrically connected to the external application end through the terminal 22, without using a control board or a transition piece such as a copper bar, so that the structure of the motor 100 is simpler and the cost of the water pump 200 is reduced. In addition, the housing of the stator assembly 1 and the housing of the connector are integrally formed, which not only simplifies the assembly difficulty of the motor 100, but also reduces the cost of the water pump 200.

[0107] In some embodiments, the installation cavity 313 is provided with an installation opening for installing the rotor assembly 6, and the installation opening is located on the side of the first portion 31 away from the plug-in slot 321. An inner cavity is defined between the pump housing 5 and the casing 3, and the pump housing 5 is disposed on the side of the first portion 31 away from the plug-in slot 321, that is, the inner cavity is connected to the installation cavity 313 through the installation opening, so as to facilitate the connection of the rotor assembly 6 with the impeller.

[0108] In some specific embodiments, the rotor assembly 6 and the impeller are integrally formed, which effectively improves the stability of the connection between the rotor assembly 6 and the impeller.

[0109] Reference Fig.11, the vehicle 300 according to the embodiment of the present invention includes the water pump 200 described in the above technical solution. Here, the vehicle 300 can be a new energy vehicle 300. In some embodiments, the new energy vehicle 300 can be a pure electric vehicle 300 with the motor 100 as the main driving force. In other embodiments, the new energy vehicle 300 can also be a hybrid vehicle 300 with the internal combustion engine and the motor 100 as the main driving force at the same time. Regarding the internal combustion engine and the motor 100 mentioned in the above embodiments that provide driving power for the new energy vehicle 300, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electrical energy for the motor 100 can use power batteries, hydrogen fuel cells, etc., which are not specifically limited here. It should be noted that this is only an exemplary description of the structure of the new energy vehicle 300, etc., and it does not limit the scope of protection of the present invention.

[0110] According to the vehicle 300 of the embodiment of the present invention, the coil winding 13 can be directly electrically connected to the external application end through the terminal 22, without using a control board or a transition piece such as a copper bar, so that the structure of the motor 100 is simpler and the cost of the stator assembly 1 is reduced. In addition, the housing of the stator assembly 1 and the housing of the connector are integrally formed, which not only simplifies the assembly difficulty of the motor 100, but also reduces the cost of the vehicle 300.

[0111] 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.

[0112] 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 motor, characterized in that: include: A stator assembly, the stator assembly comprising: a stator core, an insulating frame and a coil winding, the insulating frame being arranged on the stator core, and the coil winding being wound on the insulating frame; A plurality of connector terminals, which are arranged on the end surface of the insulating frame in the axial direction of the stator core and each of which is provided with an external connection end, and at least a part of the connector terminals are wiring terminals, which are electrically connected to the coil winding; The housing includes a first part and a second part which are integrally formed, wherein the first part wraps the stator assembly, and the second part wraps the plurality of connector terminals and defines a plug-in slot, wherein the external connection end is located in the plug-in slot.

2. The motor according to claim 1, characterized in that An insert hole is provided on the outer peripheral wall of the housing, and the motor further comprises a blocking member, which blocks the insert hole.

3. The motor according to claim 2, characterized in that The housing is provided with a sealing groove arranged around the insert hole, the sealing groove is communicated with the insert hole, and a part of the blocking member is located in the sealing groove.

4. The motor according to claim 3, characterized in that The sealing member is a sealing rubber layer.

5. The motor according to claim 4, characterized in that The sealing groove includes a recessed portion and a communicating portion, wherein the recessed portion is recessed toward the inside of the housing and is spaced apart from the insert hole, and the recessed portion is communicated with the insert hole through the communicating portion.

6. The motor according to claim 1, characterized in that An installation cavity is provided in the first part, and the installation cavity is located at the radial inner side of the stator assembly. The installation cavity is used to install a rotor assembly, and the rotor assembly is coupled with the stator assembly.

7. The motor according to claim 6, characterized in that The installation cavity is provided with an installation opening for installing the rotor assembly, and the installation opening is located on a side of the first part away from the plug-in slot.

8. The motor according to claim 6, characterized in that The installation cavity is provided with an installation opening for installing the rotor assembly, and the outer surface of the supporting side wall of the installation cavity facing the installation opening is provided with a protruding reinforcement protrusion; The supporting side wall is provided with a second mounting groove extending into the reinforcing protrusion; The end of the rotating shaft matched with the rotor assembly is located in the second mounting groove.

9. The motor according to claim 8, characterized in that The housing further includes a reinforcing rib disposed between the reinforcing protrusion and an outer side wall of the first portion.

10. The motor according to claim 1, characterized in that The housing further includes a fixing portion, the fixing portion is integrally formed with the first portion or the second portion, and the fixing portion is provided with a mounting hole.

11. The motor according to claim 10, characterized in that The fixing portion is configured as an annular structure which is externally mounted on the first portion, and an extending direction of the mounting hole is parallel to an axial direction of the stator assembly.

12. The motor according to claim 1, characterized in that The outer surface of the second part is provided with a snap-fitting protrusion, and the snap-fitting protrusion is suitable for snap-fitting with the external application end.

13. The motor according to any one of claims 1 to 12, characterized in that: The plurality of connector terminals further include a ground terminal, and the ground terminal is electrically connected to the stator core.

14. The motor according to claim 13, 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.

15. The motor according to claim 14, characterized in that The ground terminal further includes a second limiting surface disposed toward the stator core, wherein the second limiting surface abuts against the insulating frame to limit the displacement of the plug-in portion in the axial direction of the stator core.

16. The motor according to claim 15, 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.

17. The motor according to claim 13, characterized in that The coil winding is provided with a plurality of connecting wire ends located on the insulating frame, and the connecting terminal includes a wire clamping portion, which is provided with a first wire clamping groove for passing the connecting wire end, and at least a part of the wire clamping portion is suitable for piercing the outer sheath of the connecting wire end to electrically connect with the connecting wire end.

18. The electric machine according to claim 17, characterized in that The insulating frame is provided with a mounting protrusion, a first mounting groove is provided in the mounting protrusion, the multiple connecting wire ends extend into the first mounting groove, and the wire clamping part extends into the first mounting groove to pierce the outer sheath.

19. The electric machine according to claim 18, characterized in that The connection terminal is provided with a stop portion, and the stop portion stops at the end surface of the mounting protrusion to limit the displacement of the connection terminal in the axial direction of the stator core.

20. 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; A motor, wherein the motor is a motor according to any one of claims 1 to 19, wherein the motor comprises a rotor assembly, and the rotor assembly is drivingly connected to the impeller.

21. The water pump according to claim 20, characterized in that The inner cavity is defined between the pump housing and the housing; The first portion defines an installation cavity for installing the rotor assembly and an installation port communicating with the installation cavity, wherein the installation port is communicated with the inner cavity.

22. A vehicle, characterized in that: Comprising a water pump according to claim 20 or 21.

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