Electric motor, water pump, and vehicle

Abstract

An electric motor (100), comprising: a stator assembly (1), which comprises a stator core (11), wherein the stator core is provided with an insulating framework (12), a coil winding (13) being wound on the insulating framework; a plurality of connector terminals (2), which are arranged on the end face of the insulating framework, each connector terminal being provided with an external connecting end (21), and at least some of the connector terminals being electrically connected to the coil winding; and a housing (3), which comprises a first portion (31) and a second portion (32) that are integrally formed, the first portion being wrapped around the stator assembly, and the second portion being wrapped around the plurality of connector terminals.

Description

Motors, water pumps and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application "Motor, Water Pump and Vehicle" with application number 202311207004.2 and application date September 18, 2023, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of motors, and in particular to a motor, a water pump, and a vehicle. Background Art

[0004] Electric motors, as the most common power source, are widely used across various industries. Electric motors typically consist of a stator assembly and a connector. The stator assembly is equipped with coils that, when energized, generate a varying magnetic field. When a magnetic rotor assembly is placed within the energized stator assembly, the changing magnetic field propels the rotor assembly to continuous rotation. The connector includes terminals. The coils on the stator assembly are connected to the connector terminals via a control board or copper busbars. These terminals are suitable for connecting to external applications.

[0005] The connector in the related art 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, snapping or bolting. The sealing problem between the connecting parts also needs to be solved. The structure of the motor is complex, the reliability is low, and the assembly process is relatively cumbersome. Summary of the Invention

[0006] To this end, the present application proposes a motor in which the coil winding can be directly electrically connected to the external application end through the terminal block, making the structure of the motor simpler. The housing of the stator assembly and the housing of the connector are integrally formed, eliminating the original welding, snap-fitting, bolt locking and other assembly processes of the connector and the stator housing, thereby reducing the cost of the motor.

[0007] The present application also proposes a water pump comprising the above motor.

[0008] The present application also proposes a vehicle comprising the above-mentioned water pump.

[0009] According to an embodiment of the present application, the motor includes: a stator assembly, the stator assembly including: 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 around 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 portion of the connector terminals are wiring terminals, and the wiring terminals are electrically connected to the coil winding; a casing, the casing including an integrally formed first part and a second part, 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.

[0010] According to the motor of the present application, the coil windings can be directly electrically connected to the external application end via terminal blocks, eliminating the need for transition pieces such as a control board or copper busbars. This simplifies the structure of the stator assembly and reduces the cost of the stator assembly. Furthermore, the stator assembly housing (i.e., the first portion) and the connector housing (i.e., the second portion) are integrally formed. Compared to related art, the motor provided by the present application eliminates the process of connecting the stator assembly housing and the connector housing, simplifying the assembly of the motor and reducing its cost.

[0011] Optionally, 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.

[0012] Optionally, 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 part away from the plug-in slot.

[0013] Optionally, the mounting cavity is provided with a mounting opening for installing 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 reinforcement protrusion; the supporting side wall is provided with a second mounting groove extending into the reinforcement protrusion; the end of the rotating shaft cooperating with the rotor assembly is located in the second mounting groove.

[0014] Optionally, the housing further includes a reinforcing rib, and the reinforcing rib is arranged between the reinforcing protrusion and the outer side wall of the first part.

[0015] Optionally, the housing further includes a fixing portion, the fixing portion is integrally formed with the first part or the second part, and the fixing portion is provided with a mounting hole.

[0016] Optionally, the fixing portion is configured as an annular structure externally mounted on the first portion, and an extending direction of the mounting hole is parallel to an axial direction of the stator assembly.

[0017] Optionally, a snap-fit ​​protrusion is provided on the outer surface of the second portion, and the snap-fit ​​protrusion is suitable for snap-fitting with the external application end.

[0018] Optionally, an outer peripheral wall of the housing is provided with an insert hole, and the motor further comprises a blocking member, which blocks the insert hole.

[0019] Optionally, 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.

[0020] Optionally, the sealing member is a sealant layer.

[0021] Optionally, 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.

[0022] Optionally, the plurality of connector terminals further include a grounding terminal, and the grounding terminal is electrically connected to the stator core.

[0023] Optionally, the stator core is provided with an insertion slot, and the grounding terminal is inserted into the insertion slot.

[0024] Optionally, the grounding terminal further includes a second limiting surface arranged 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.

[0025] Optionally, the insulating frame further includes a limiting baffle, which abuts against the grounding terminal to limit the displacement of the grounding terminal in the radial direction of the stator core.

[0026] Optionally, the coil winding is provided with a plurality of connecting wire ends located on the insulating frame, and the wiring 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.

[0027] Optionally, 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 covering.

[0028] Optionally, 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.

[0029] According to the water pump of the embodiment of the present application, it includes: a pump casing, which defines or participates in defining an inner cavity, and the pump casing is also provided with a liquid inlet and a liquid outlet connected to the inner cavity; an impeller, which is rotatably arranged in the inner cavity; a motor, which is the motor described in the above technical solution, and the motor includes a rotor assembly, and the rotor assembly is transmission-connected to the impeller.

[0030] Optionally, the inner cavity is defined between the pump casing and the machine casing; the first part is defined with 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.

[0031] The vehicle according to the embodiment of the present application includes the water pump in the above technical solution.

[0032] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] FIG1 is a schematic diagram of a water pump according to an embodiment of the present application;

[0035] FIG2 is a partial cross-sectional view of a water pump according to some embodiments of the present application;

[0036] FIG3 is a top view of a water pump according to an embodiment of the present application;

[0037] FIG4 is a partial cross-sectional view of a water pump according to other embodiments of the present application;

[0038] FIG5 is an enlarged schematic diagram of portion A in FIG4 ;

[0039] FIG6 is a schematic diagram of a stator assembly;

[0040] FIG7 is a front view of the stator assembly;

[0041] FIG8 is a partial cross-sectional view of a stator assembly;

[0042] Figure 9 is a schematic structural diagram of the terminal block;

[0043] FIG10 is a schematic structural diagram of a ground terminal;

[0044] FIG11 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0045] 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 end; 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 portion; 3122. Connecting portion; 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 portion; 3171. Mounting hole; 318. Clamping protrusion; 32. Second part; 321. Insert groove; 4. Blocking piece; 41. Main body; 42. Sealing portion; 421. First side wall; 422. Third side wall; 5. Pump casing; 51. Liquid inlet; 52. Liquid outlet; 6. Rotor assembly; 7. Rotating shaft. Modes for Carrying Out the Invention

[0046] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0047] In the description of the present application, 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", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0049] The motor 100 according to an embodiment of the present application is described below with reference to FIG. 1 to FIG. 11 .

[0050] 1, 2, and 6, a motor 100 according to an embodiment of the present application 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 disposed on the yoke 111; the insulating frame 12 is disposed on the stator core 11 and includes a plurality of winding positions 121, each corresponding one-to-one with a plurality of teeth, with each winding position 121 being disposed over a corresponding tooth; the coil winding 13 is formed by winding a conductive wire around the winding positions 121 of the insulating frame 12. When power is supplied to the coil winding 13, a magnetic field is generated within the stator assembly 1.

[0051] The motor 100 in the embodiment of the present application also includes a plurality of connector terminals 2. These are located axially on the end surface of the insulating frame 12, and each connector terminal 2 has an external connection end 21 for connecting to an external application. At least a portion of the plurality of connector terminals 2 are terminal blocks 22, which are electrically connected to the coil windings 13. This means that the coil windings 13 can be directly electrically connected to the external application via the terminal blocks 22, eliminating the need for transitional components such as a control board or copper busbars. This simplifies the structure of the stator assembly 1 and reduces its cost. The motor 100 in the embodiment of the present application also includes a housing 3, which includes an integrally formed first portion 31 and a second portion 32. The first portion 31 encloses the stator assembly 1, and the second portion 32 encloses the plurality of connector terminals 2. The second portion 32 also defines a socket 321. When the motor 100 is connected to an external application, at least a portion of the external application is positioned within the socket 321 to electrically connect to the connector terminals 2. The external application end provides power to the motor. The external application end energizes the coil winding 13 through the connection terminal 22 , thereby generating a magnetic field in the stator assembly 1 .

[0052] According to the motor 100 of the embodiment of the present application, the coil winding 13 can be electrically connected directly to the external application end via the terminal block 22, without the need for a control board or transition pieces such as copper busbars. This simplifies the motor structure and reduces the cost of the stator assembly 1. Furthermore, the housing of the stator assembly 1 (i.e., the first portion 31) and the housing of the connector (i.e., the second portion 32) are integrally formed. Compared to related art, the motor 100 provided in the present application eliminates the process of connecting the housing of the stator assembly 1 and the housing of the connector, which not only simplifies the assembly of the motor 100 but also reduces its cost.

[0053] In some embodiments, the insulating frame 12 is integrally molded with the stator core 11 through an injection molding process. 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.

[0054] 7 , 8 and 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 electrically connect to the terminal 22. The plurality of connecting wire ends 131 are all located on the insulating frame 12 to facilitate connection with the 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 terminal 22, it is necessary to break the outer sheath of the connecting wire end 131. The terminal 22 in the embodiment of the present application 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 .

[0055] In the above technical solution, the 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, reducing the difficulty of electrically connecting the coil winding 13 and the terminal 22, and further reducing the cost of the stator assembly 1.

[0056] In some other embodiments, the connection method between the connection terminal 22 and the connection wire end 131 may also be welding, bonding, etc.

[0057] 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 , multiple 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 covering.

[0058] 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. This allows the wire clamping portion 221 to pierce the outer sheath of the connecting wire end 131 when inserted into the first mounting groove 1221, further improving the convenience of electrically connecting the coil winding 13 to the terminal 22. In addition, in the embodiment of the present application, the mounting protrusion 122 is provided on the axial end face of the insulating frame 12, and the first mounting groove 1221 is provided on the axial end face of the mounting protrusion 122. When the terminal 22 is inserted into the first mounting groove 1221, it can remain in a state extending in the axial direction of the stator assembly 1. This eliminates the need for pre-bending the terminal 22, reduces the number of steps, and reduces the cost of the motor 100.

[0059] In some further embodiments, the first installation groove 1221 is composed of a plurality of spaced-apart sub-grooves 12211 , and the plurality of connection wire ends 131 extend into the plurality of sub-grooves 12211 in a one-to-one correspondence.

[0060] Because the multiple connecting wire terminals 131 correspond to multiple different phase wires, in the above embodiment, the multiple connecting wire terminals 131 extend into the multiple sub-slots 12211 in a one-to-one correspondence, making it easy to distinguish the phase wires corresponding to different connecting wire terminals 131. In addition, the multiple sub-slots 12211 are arranged at intervals, effectively reducing the possibility of electrical connection between different connecting wire terminals 131. The multiple, spaced sub-slots 12211 also facilitate the independent installation of multiple terminal blocks 22, further reducing the difficulty of assembling the stator assembly 1.

[0061] In some specific embodiments, a first avoidance groove 1222 for the connecting wire end 131 to pass through is provided at the position of each sub-groove 12211 of the mounting protrusion 122. The first avoidance groove 1222 is connected to the corresponding sub-groove 12211 and extends through two opposing side walls of the corresponding sub-groove 12211. The connecting wire end 131 is located within the corresponding first avoidance groove 1222, which restricts the position of the connecting wire end 131 so that the wire clamping portion 221 can pierce the outer sheath of the connecting wire end 131 when inserted into the corresponding sub-groove 12211.

[0062] 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 face of the mounting protrusion 122, indicating that the terminal 22 is installed in place, thereby improving the installation accuracy of the terminal 22 and also improving the stability of the terminal 22 during installation.

[0063] In some specific embodiments, the abutting portion 222 of the connection terminal 22 is disposed between the external connection end 21 and the wire-holding portion 221 , and the abutting portion 222 is adapted to abut against the end surface of the mounting protrusion 122 provided with the first mounting groove 1221 .

[0064] In some embodiments, the wire clamping portion 221 is detachably engaged with the first mounting groove 1221. When there is a problem with 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.

[0065] In some embodiments, a first stopper is provided on the wire-gripping portion 221, and a second stopper is provided in the first mounting groove 1221. The first stopper and the second stopper engage with each other. When the terminal 22 is installed in the first mounting groove 1221, the stopper 222 abuts against the end of the mounting protrusion 122, and the first stopper engages with the second stopper, thereby securing the terminal 22 to the mounting protrusion 122 and effectively improving the stability of the terminal 22.

[0066] In some specific embodiments, the first limiting member is configured as a clamping block 2212 disposed around the wire-clamping portion 221, and the second limiting member is configured as a first limiting surface disposed on the inner wall of the first mounting slot 1221, with the first limiting surface being disposed toward a side away from the opening of the first mounting slot 1221. When the clamping block 2212 abuts against the first limiting surface, the terminal block 22 is prevented from disengaging from the first mounting slot 1221, thereby effectively improving the stability of the terminal block 22.

[0067] In some embodiments, the wire clamping portion 221 and the first mounting groove 1221 are engaged with each other through a first limiting member and a second limiting member. In other embodiments, the wire clamping portion 221 can also be detachably engaged with the first mounting groove 1221 through screws. Other situations are also possible, as long as the wire clamping portion 221 and the first mounting groove 1221 are detachably engaged.

[0068] 6 , 8 and 10 , in some embodiments, the plurality of connector terminals 2 further include a ground terminal 23 , which is electrically connected to the stator core 11 to improve the safety of the stator assembly 1 .

[0069] In some embodiments, 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.

[0070] 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. 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 .

[0071] In some embodiments, the ground terminal 23 further includes a second limiting surface 232 disposed toward the stator core 11 . 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 .

[0072] 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 .

[0073] 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 .

[0074] 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 , further improving the stability of the grounding terminal 23 .

[0075] 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.

[0076] In some embodiments, the multiple connector terminals 2 include multiple wiring terminals 22 and a grounding terminal 23, and the external connection ends 21 of the multiple wiring terminals 22 and the external connection ends 21 of the grounding terminal 23 are arranged at equal intervals to facilitate the cooperation of the multiple external connection ends 21 with the external application ends.

[0077] In some embodiments, the coil winding 13 includes: a U-connecting terminal, a V-connecting terminal, and a W-connecting terminal; the multiple sub-slots 12211 of the mounting boss 122 include: a U-phase slot, a V-phase slot, and a W-phase slot; the multiple terminals 22 include: a U-phase terminal, a V-phase terminal, and a W-phase terminal. The U-connecting terminal is located in the U-phase slot and connected to the U-phase terminal, the V-connecting terminal is located in the V-phase slot and connected to the V-phase terminal, and the W-connecting terminal is located in the W-phase slot and connected to the W-phase terminal.

[0078] 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 application, 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 4 mm. 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.

[0079] Referring to 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.

[0080] 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, and a portion of the connector terminal 2 is installed on the insulating skeleton 12. 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.

[0081] 1, 2, and 3, in some embodiments, a mounting cavity 313 is provided within the first portion 31. 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, which is coupled to the stator assembly 1. When the rotor assembly 6 is mounted within the mounting cavity 313, the stator assembly 1 can be connected to an external application terminal via the plurality of connector terminals 2, thereby generating a varying magnetic field within the stator assembly 1 to drive the rotor assembly 6 to rotate.

[0082] 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.

[0083] In some specific embodiments, the mounting cavity 313 is provided with a mounting opening for mounting the rotor assembly 6, and the mounting 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.

[0084] In the above technical solution, the installation port is set 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.

[0085] 1, 2, and 3, in some further embodiments, the inner wall of the mounting cavity 313, facing the mounting opening, is a supporting sidewall 3131. A reinforcing protrusion 314 is provided on the outer surface of the supporting sidewall 3131. The reinforcing protrusion 314 enhances the strength of the supporting sidewall 3131, ensuring the firmness of the supporting sidewall 3131. A second mounting groove 316 is provided on the side of the supporting sidewall 3131 facing the mounting opening. The second mounting groove 316 extends into the reinforcing protrusion 314. The end of the rotating shaft 7, which engages with the rotor assembly 6, is located in the second mounting groove 316.

[0086] In the above technical solution, by providing a 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, deepening the second mounting groove 316 and further improving the stability of the rotating shaft 7 and the rotor assembly 6.

[0087] 1 , 2 , and 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 sidewall 3131, and the rotor assembly 6 is rotatably mounted on the rotating shaft 7. In other embodiments, the rotor assembly 6 may be fixedly connected to the rotating shaft 7, and the end of the rotating shaft 7 may be rotatably mounted in the second mounting groove 316.

[0088] 1 , 2 and 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 .

[0089] In some embodiments, the housing 3 also includes a fixing portion 317, which is integrally formed in the first part 31 or the second part 32. The fixing portion 317 is provided with a mounting hole 3171. 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.

[0090] 1 , 2 and 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 extension 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.

[0091] Referring to Figures 1, 2, and 3, in some embodiments, the outer surface of the second portion 32 is provided with a snap-fit ​​protrusion 318 adapted to snap-fit ​​with an external application terminal. When the motor 100 is connected to the external application terminal, a portion of the external application terminal is inserted into the insertion slot 321 to electrically connect with the plurality of connector terminals 2. At this time, the snap-fit ​​protrusion 318 on the outer surface of the second portion 32 snaps into contact with the external application terminal, improving the stability of the connection between the motor 100 and the external application terminal.

[0092] Referring to Figures 4, 5, and 6, in some embodiments, the housing 3 is attached to the stator assembly 1 and the plurality of connector terminals 2 via an injection molding process, thereby integrally forming the first portion 31 and the second portion 32. During the injection molding process of the housing 3, an insert is used to secure the stator assembly 1. After the injection molding is complete, the insert is removed, resulting in an insert hole 311 in the housing 3. In this embodiment of the present application, the motor 100 further includes a blocking member 4, which blocks the insert hole 311.

[0093] In the above technical solution, the insert hole 311 is sealed by the sealing member 4 , thereby reducing the risk of external moisture entering the insert hole 311 and corroding the stator assembly 1 , thereby extending the service life of the motor 100 .

[0094] In some specific embodiments, during the injection molding process of the housing 3, the stator assembly 1 is fixed by an insert. After the injection molding is completed, the insert retreats along the axial direction of the stator assembly 1, thereby forming an insert hole 311 on the end face of the housing 3. A blocking member 4 is provided in the insert hole 311 to seal it. The number of insert holes 311 can be one or more.

[0095] 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 .

[0096] 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.

[0097] 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 interior of the housing 3 and spaced apart from the insert hole 311. The connecting portion 3122 is located on a side of the recessed portion 3121 away from the interior of the housing 3. The recessed portion 3121 communicates with the insert hole 311 via 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 and the sealing portion 42 are connected. The sealing portion 42 has a first sidewall 421 facing the main body 41. The sealing groove 312 has a second sidewall 3123 facing away from the main body 41. The first sidewall 421 abuts against the second sidewall 3123.

[0098] The sealing portion 42 is further provided with a third side wall 422 disposed away from the main body portion 41 . The sealing groove 312 is provided with a fourth side wall 3124 disposed toward the main body portion 41 . The third side wall 422 abuts against the fourth side wall 3124 .

[0099] With the above technical solution, when the operating environment temperature of the motor 100 is high, the blocking member 4 expands due to heat, strengthening the contact between the third side wall 422 and the fourth side wall 3124, thereby improving the sealing effect of the blocking member 4. When the operating environment temperature of the motor 100 is low, the blocking member 4 contracts due to cold, strengthening the contact between the first side wall 421 and the second side wall 3123, thereby improving the sealing effect of the blocking member 4. Therefore, with the above technical solution, the blocking member 4 can ensure a good sealing effect when the motor 100 is in operating environments with different temperatures.

[0100] 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.

[0101] The above technical solution improves the stability of the connection between the sealing member 4 and the housing 3, and the sealing member 4 can effectively fill the internal space of the insert hole 311, effectively ensuring the sealing effect of the sealing member 4. In some other embodiments, the sealing member 4 can also be a rubber member, a plastic member, or other structures, which is not limited in this application, as long as it can seal the insert hole 311.

[0102] 3 , in some implementations, a positioning groove 14 is provided on the outer peripheral wall of the stator assembly 1 . The positioning groove 14 is suitable for cooperating with the insert to facilitate determining the angle of the stator assembly 1 itself, thereby avoiding a situation where the angle of the stator assembly 1 does not correspond to the angle of the housing 3 during injection molding.

[0103] The water pump 200 according to an embodiment of the present application includes the motor 100 described in the above technical solution. The water pump 200 further includes a pump casing 5 defining or co-defining an inner cavity. The pump casing 5 is further provided with a liquid inlet 51 and a liquid outlet 52 communicating with the inner cavity. The impeller is rotatably disposed within the inner cavity. When fluid enters the inner cavity through the liquid inlet 51, the impeller rotates, driving the fluid within the inner cavity toward the liquid outlet 52 for discharge.

[0104] Motor 100 includes a stator assembly 1, which comprises a stator core 11, an insulating frame 12, and coil windings 13. Stator core 11 includes a yoke 111 and a plurality of teeth disposed on yoke 111. The insulating frame 12 is disposed on stator core 11 and includes a plurality of winding positions 121, each corresponding to a plurality of teeth. Each winding position 121 is fitted around a corresponding tooth. Coil windings 13 are constructed by winding conductive wires around the winding positions 121 of the insulating frame 12. When power is applied to coil windings 13, a magnetic field is generated within stator assembly 1.

[0105] Motor 100 also includes a plurality of connector terminals 2. These are located axially on the end surface of the insulating frame 12, and each connector terminal 2 has an external connection end 21 for connection to an external application. At least some of these connector terminals 2 are wiring terminals 22, which are electrically connected to the coil windings 13.

[0106] Motor 100 also includes a housing 3, which includes an integrally formed first portion 31 and a second portion 32. The first portion 31 encloses the stator assembly 1, and the second portion 32 encloses the plurality of connector terminals 2. The second portion 32 further defines a socket 321. When motor 100 is connected to an external application terminal, the external application terminal is located within the socket 321 and electrically connected to the connector terminals 2.

[0107] The motor 100 includes a rotor assembly 6 coupled to the stator assembly 1. A mounting cavity 313 is defined within the first portion 31. Mounting cavity 313 is located radially inward of the stator assembly 1, and the rotor assembly 6 is rotatably disposed within the mounting cavity 313. The rotor assembly 6 is in driving connection with the impeller. When the motor 100 is connected to an external application terminal via multiple connector terminals 2, the external application terminal provides power to the stator assembly 1, causing it to generate a varying magnetic field, thereby driving the rotor assembly 6 to rotate. The rotor assembly 6 then drives the impeller to rotate, thereby enabling the water pump 200 to drive fluid flow.

[0108] According to the water pump 200 of the embodiment of the present application, the coil windings 13 of the motor 100 can be directly electrically connected to the external application end via the terminal block 22, without the need for a control board or transition pieces such as copper busbars. This simplifies the structure of the motor 100 and reduces the cost of the water pump 200. Furthermore, the housing of the stator assembly 1 and the housing of the connector are integrally formed, which not only simplifies the assembly of the motor 100 but also reduces the cost of the water pump 200.

[0109] In some embodiments, the mounting cavity 313 is provided with a mounting opening for mounting the rotor assembly 6, and the mounting opening is located on the side of the first portion 31 facing away from the insertion slot 321. An inner cavity is defined between the pump casing 5 and the housing 3, and the pump casing 5 is disposed on the side of the first portion 31 facing away from the insertion slot 321. In other words, the inner cavity communicates with the mounting cavity 313 through the mounting opening, facilitating connection of the rotor assembly 6 to the impeller.

[0110] 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.

[0111] Referring to Figure 11, the vehicle 300 according to the embodiment of the present application 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. 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., and no special limitation is made here. It should be noted that this is only an exemplary description of the structure of the new energy vehicle 300, and is not intended to limit the scope of protection of this application.

[0112] According to the vehicle 300 of the embodiment of the present application, the coil winding 13 can be directly electrically connected to the external application end via the terminal block 22, without the need for a control board or transition piece such as a copper busbar. This simplifies the structure of the motor 100 and reduces the cost of the stator assembly 1. Furthermore, the housing of the stator assembly 1 and the housing of the connector are integrally formed, which not only simplifies the assembly of the motor 100 but also reduces the cost of the vehicle 300.

[0113] Throughout this specification, reference to terms such as "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 application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0114] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A motor, wherein: 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 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.

2. The motor according to claim 1, wherein: 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, wherein: 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, wherein: The blocking member is a sealing rubber layer.

5. The motor according to claim 4, wherein: 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 any one of claims 1 to 5, wherein: 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, wherein: 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 electric machine according to claim 6 or 7, wherein: 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 electric machine according to claim 8, wherein: The housing further includes a reinforcing rib disposed between the reinforcing protrusion and an outer side wall of the first portion.

10. The electric machine according to any one of claims 1 to 9, wherein: 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 electric machine according to claim 10, wherein: 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 electric machine according to any one of claims 1 to 11, wherein: 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 electric machine according to any one of claims 1 to 12, wherein: The plurality of connector terminals further include a ground terminal, and the ground terminal is electrically connected to the stator core.

14. The electric machine according to claim 13, wherein: 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 electric machine according to claim 14, wherein: 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 electric machine according to claim 15, wherein: 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 electric machine according to any one of claims 13 to 16, wherein: 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, wherein: 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, wherein 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, wherein: 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, wherein: 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, wherein: Comprising a water pump according to claim 20 or 21.

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