Stator frames, motors, pumps and vehicles

Abstract

The present invention provides a stator frame, a motor, a water pump and a vehicle, wherein the stator frame includes a frame, a mounting cavity and a receiving groove, the frame includes a mounting portion and a stopper assembly, the mounting portion is used to assemble the motor winding, the stopper is connected to the end of the mounting portion and extends in a first direction away from the center line of the mounting portion, the mounting cavity is provided through the mounting portion and the stopper assembly, the mounting cavity is used to assemble the stator core of the motor, the receiving groove is provided on the stopper assembly, and the receiving groove is used to accommodate the head end of the winding. The stator frame provided by the present invention is provided with a receiving groove for accommodating the head end of the winding on the stopper assembly, thereby avoiding the head end of the winding from occupying the winding space and causing unnecessary waste of the winding space, and at the same time, it can avoid the head end of the winding from interfering with the orderly winding of the subsequent winding, thereby ensuring the consistency of the winding and improving the assembly efficiency of the winding.

Description

Technical Field

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

[0002] At present, in the structural design of the stator frame, the starting end of the winding wound on the stator frame is not properly accommodated, so that the starting end of the winding occupies the winding space of the stator frame and causes unnecessary waste of the winding space. In addition, it will also interfere with the orderly winding of the subsequent winding and reduce the winding efficiency. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention is to provide a stator frame.

[0005] A second aspect of the present invention is to provide an electric motor.

[0006] A third aspect of the present invention is to provide a water pump.

[0007] A fourth aspect of the present invention provides a vehicle.

[0008] In view of this, according to a first aspect of the present invention, a stator frame is provided for a motor, the stator frame comprising a frame, a mounting cavity and a receiving groove, the frame comprising a mounting portion and a stop assembly, the winding of the motor is assembled on the mounting portion, the stop assembly is connected to the end of the mounting portion and extends in a first direction away from the center line of the mounting portion, the mounting cavity is arranged through the mounting portion and the stop assembly, the mounting cavity is used to receive the stator core of the motor, the receiving groove is opened on the stop assembly, and the receiving groove is used to receive the head end of the winding.

[0009] The stator frame provided by the present invention comprises a frame and a receiving groove, wherein the receiving groove is provided on the frame, the winding is arranged on a mounting portion on the frame, and the head end of the winding is received in the receiving groove, that is, the head end of the winding does not occupy the winding space on the frame. The stator frame provided by the present invention receives the head end of the winding in the receiving groove, thereby avoiding the head end of the winding occupying the winding space and causing unnecessary waste of the winding space, avoiding the head end of the winding interfering with the orderly winding of the subsequent winding, ensuring the consistency of the winding and improving the assembly efficiency of the winding.

[0010] In a possible design, further, the frame includes a stop assembly, wherein part of the winding is wound on the mounting portion; the stop assembly is connected to the end of the mounting portion and extends in a first direction away from the center line of the mounting portion, and the accommodating groove is arranged on the stop assembly.

[0011] In this design, the frame includes a mounting portion and a stop assembly, and the stop assembly is connected to the end of the mounting portion, that is, the stop assemblies are provided at both ends of the mounting portion, and the stop assembly and the mounting portion constitute a winding space. Part of the winding is wound on the mounting portion and is not in the winding space. The receiving groove is provided on the stop assembly, and the receiving groove is connected to the winding space, and the receiving groove does not occupy the winding space.

[0012] Furthermore, the stopper assembly is connected to the end of the mounting portion and extends in a first direction away from the center line of the mounting portion. When the stator frame is assembled in the motor, the center line direction of the mounting portion is perpendicular to the axial direction of the motor, that is, the center line direction of the mounting portion is a radial direction, and the first direction away from the center line of the mounting portion is included in the front and rear direction of the mounting portion, or the left and right direction. When combined with the motor, it can be the axial direction of the motor or the circumferential direction of the motor. When the stopper assembly extends along the first direction, on the one hand, the volume of the winding space formed by the stopper assembly and the mounting portion is larger, which can meet the space requirements of the winding, and the stopper assembly can achieve a stopping effect on the winding to ensure the position stability of the winding. Specifically, the stopper assembly and the mounting portion are in a "I" shape. On the other hand, the stopper assembly can limit the stator core assembled in the mounting cavity to ensure the position stability of the stator core.

[0013] In a possible design, further, the frame includes an installation cavity, which is arranged through the installation portion and the stop assembly, and the installation cavity is used to accommodate the stator core of the motor.

[0014] In this design, the frame also includes an installation cavity, and the installation cavity is arranged on the installation part and the stop assembly. Specifically, the installation part has a first sub-cavity, the stop assembly includes a second sub-cavity, and the second sub-cavity is connected to the first sub-cavity. The installation cavity is used to accommodate the stator core of the motor. When the stop assembly and the installation part are in an "I" shape, the installation cavity located inside the stop assembly and the installation part is also in an "I" shape, and the stator core is adapted to the installation cavity, that is, the stator core is also in an "I" shape. Specifically, the installation cavity has a first opening end and a second opening end that are radially and opposite to each other, and the first opening end is arranged closer to the center of the motor than the second opening end. Furthermore, the first opening end and the second opening end are flared.

[0015] In a possible design, further, the stop assembly includes a stop portion and a limiting portion, the stop portion is connected to the first end of the mounting portion, and the accommodating groove is arranged on the stop portion; the limiting portion is connected to the second end of the mounting portion, and the extension length of the limiting portion in the first direction is less than or equal to the extension length of the stop portion in the first direction.

[0016] In this design, the stopper assembly includes a stopper and a limiting portion, the mounting portion has a first end and a second end that are opposite to each other, the stopper is connected to the first end of the mounting portion, the accommodating groove is arranged on the stopper, the limiting portion is connected to the second end of the mounting portion, the extension length of the limiting portion in the first direction is less than or equal to the extension length of the stopping portion in the first direction, when the stator frame is assembled in the motor, when the motor housing is cylindrical, the limiting portion is arranged closer to the center of the housing than the stopping portion, at this time, the limiting portions of the multiple stator frames can be surrounded by an inner ring, and the stopping portions of the multiple stator frames can be surrounded by an outer ring, by limiting the extension length of the stopping portion and the limiting portion in the first direction, the utilization rate of the internal space of the motor can be improved, so that the structure of the stator frame can be more suitable for the motor. Specifically, when the first direction is the axial direction of the motor, the extension length of the limiting portion in the axial direction is equal to the extension length of the stopping portion in the axial direction. When the first direction is the circumferential direction of the motor, the extension length of the limiting portion in the circumferential direction is less than the extension length of the stopping portion in the circumferential direction.

[0017] In a possible design, further, the stop portion and the limiting portion have the same extension length in the axial direction of the motor.

[0018] In this design, when the first direction is the axial direction of the motor, the extension lengths of the stopper and the limiter in the axial direction of the motor are equal, which can facilitate the assembly and connection of the stator frame with other components in the motor. This is because when the stator frame is assembled in the motor, the axial ends of the stator frame need to cooperate with other structures of the motor. For example, a bus is provided at one end of the stator frame, and when the axial extension lengths of the stopper and the limiter are equal, the stopper and the limiter can be supported and connected to the base of the bus at the same time, thereby making the position of the bus more stable.

[0019] In a possible design, further, part of the stop portion protrudes away from the limiting portion to construct at least two limiting back plates, and the at least two limiting back plates constitute part of the installation cavity.

[0020] In this design, part of the stopper protrudes away from the limiting part to construct at least two limiting back plates. When the stator core is assembled in the installation cavity, the stator core and the inner walls of the at least two limiting back plates fit each other. The limiting back plates can ensure the position stability of the stator core and limit the movement of the stator core in the axial direction of the motor. Specifically, at least two limiting back plates constitute the second open end of the installation cavity.

[0021] In a possible design, further, the frame also includes an opening, and a portion of the stopper is recessed toward the installation cavity to form the opening.

[0022] In this design, the frame also includes an opening provided on the stopper, which can reduce the deadweight of the stator frame and make the wall thickness of each part of the frame uniform, thereby improving the injection molding effect of the stator frame. Specifically, the opening is not connected to the mounting cavity, thereby ensuring the insulation effect between the winding and the stator core. Furthermore, the opening can be a square opening, a circular opening or a special-shaped opening.

[0023] In a possible design, further, the frame also includes a winding groove, the winding groove is arranged on the mounting portion, the receiving groove is arranged on the wall surface of the stop assembly facing the mounting portion, and the receiving groove is communicated with the winding groove.

[0024] In this design, a winding groove is provided on the mounting portion. After the head end of the winding is placed in the receiving groove, part of the winding will be embedded in the winding groove for winding. The winding groove can facilitate the positioning and assembly of the winding, making the winding more regular and neat, further ensuring the orderly winding of the winding. By setting the receiving groove on the wall surface of the stopper assembly facing the mounting portion, the head end of the winding can be conveniently set in the receiving groove, reducing the difficulty of assembly.

[0025] In a possible design, further, at least a portion of the wall surface of the stop assembly close to the mounting portion is straight.

[0026] In this design, at least part of the wall surface on the stop assembly close to the mounting portion is straight, that is, at least part of the wall surface on the limit portion close to the mounting portion is straight, and at least part of the wall surface on the stop portion close to the mounting portion is straight. At this time, the curvature of the wall surface of the stop assembly facing the mounting portion is relatively small. When the winding is wrapped around the stator frame, the wire nozzle of the automatic winding equipment will not interfere with the stator frame, thereby ensuring the winding efficiency and avoiding increased winding failure, preventing the wall surface of the stop assembly from scratching the winding during the winding process and causing damage to the winding. In addition, the structural difficulty of the automatic winding equipment can be reduced.

[0027] In a possible design, further, at least part of the free ends of the limiting portions have an inclined surface.

[0028] In this design, when the winding is wound around the mounting portion on the frame, the free end of the upper limit portion of the frame will bend inwardly toward the inside of the winding space due to the force on the frame. By making at least part of the free end of the limiting portion have an inclined surface, the free end of the limiting portion can be prevented from damaging the winding. Specifically, the limiting portion includes two free ends along the circumference of the motor and two free ends along the axial direction of the motor. The inclined surface can be set on any one of the four free ends, or on two opposite free ends of the four free ends according to needs.

[0029] In a possible design, further, the limiting portion has two limiting ends along a non-axial direction and away from each other, and an inclined surface is arranged on each of the two limiting ends; the limiting end has multiple side edges, the multiple side edges include a first side edge close to the mounting portion and a second side edge opposite to the first side edge, and the distance between the two first side edges is greater than the distance between the two second side edges.

[0030] In this design, the limiting part has two limiting ends which are located in the non-axial direction and are away from each other. Specifically, the limiting ends are two free ends along the circumference of the motor. An inclined surface is provided on each of the two limiting ends. The limiting end has a plurality of side edges, a first side edge close to the mounting part and a second side edge opposite to the first side edge among the plurality of side edges, and the first side edge and the second side edge are both located in the circumference of the motor. And the distance between the two first side edges is greater than the distance between the two second side edges, that is, the distance between the two relatively arranged inclined surfaces gradually decreases from the first side edge to the second side edge. When the winding is wound on the mounting part on the frame, the free end of the upper limiting part of the frame will be inwardly buckled and upturned toward the inside of the winding space, and by gradually reducing the distance between the two relatively limiting ends, the free end of the limiting part can be prevented from damaging the winding. Specifically, the end faces of the two ends of the limiting part located in the axial direction are straight, so that a better assembly support effect can be achieved, which is convenient for mutual cooperation with other parts of the motor.

[0031] In a possible design, further, the frame includes a first frame and a second frame, wherein the first frame and the second frame are connected, the receiving groove is arranged on the first frame, and the winding is wound on the first frame and the second frame at the same time.

[0032] In this design, the frame includes a first frame and a second frame connected to each other. The two parts constitute the frame, which, on the one hand, facilitates the injection molding of the first frame and the second frame, and on the other hand, simplifies the assembly of the stator core. Specifically, the first frame has a first cavity, the second frame has a second cavity, and the first cavity and the second cavity constitute an installation cavity. During the assembly of the stator core, the stator core can be first placed in the first cavity of the first frame, and then the second frame is connected to the first frame, which is convenient for assembly. Furthermore, a first winding groove is provided on the first mounting portion of the first frame, and a second winding groove is provided on the second mounting portion of the second frame. When the first frame is plugged and connected with the second frame, the first winding groove and the second winding groove are butted against each other to form a complete winding groove.

[0033] Further, the opening includes a first opening and a second opening, the first opening is arranged on the first stopper, and the second opening is arranged on the second stopper.

[0034] Furthermore, the first frame has a first cavity, and the second frame has a second cavity. When the first frame and the second frame are plugged into each other, the first cavity is connected to the second cavity and surrounds a mounting cavity for accommodating the stator core.

[0035] In a possible design, further, the first frame includes a first mounting portion and a first stop portion and a first limiting portion respectively located at two ends of the first mounting portion; the second frame includes a second stop portion, a second mounting portion and a second limiting portion connected in sequence, wherein the second stop portion is connected to the first stop portion to constitute a stop portion of the stator frame, the second mounting portion is connected to the first mounting portion to constitute a mounting portion of the stator frame, and the second limiting portion is connected to the first limiting portion to constitute a limiting portion of the stator frame.

[0036] In this design, the first frame includes a first mounting portion and a first stopper and a first limiting portion respectively located at both ends of the first mounting portion, and the second frame includes a second mounting portion and a second stopper and a second limiting portion respectively located at both ends of the second mounting portion, wherein the first limiting portion and the second limiting portion, the first mounting portion and the second mounting portion, and the first stopper and the second limiting portion have a corresponding relationship with each other. Specifically, the first mounting portion and the second mounting portion constitute the mounting portion, the first stopper and the second stopper constitute the stopper, and the first limiting portion and the second limiting portion constitute the limiting portion. By splitting the frame into the first frame and the second frame, the first frame and the second frame together constitute the stopper, the limiting portion and the mounting portion of the stator frame, further reducing the difficulty of injection molding of the stator frame. In addition, during the injection molding process, if there is a problem with the first stopper during the injection molding process, only the first frame having it needs to be scrapped, without having to deal with the second frame without quality problems, which can effectively reduce the scrap rate during the molding process of the stator frame.

[0037] In a possible design, further, the frame includes at least one opening groove, the at least one opening groove is opened on the side wall of the first stop part away from the second stop part, and the accommodating groove is opened on the first stop part and is located in any one of the at least one opening groove.

[0038] In this design, the frame further includes at least one open slot, which is arranged on the side wall of the first stopper away from the second stopper, and the open slot is not connected to the mounting cavity, thereby ensuring the insulation safety performance between the stator core and the winding. The receiving slot is provided on the first stopper and is located in an open slot, that is, by locating the receiving slot in the open slot, the structural arrangement on the stator frame can be made more reasonable, avoiding the head end of the winding located in the receiving slot protruding from the end face of the first stopper, and ensuring that the stator frame and other components of the motor are adapted to each other.

[0039] In a possible design, further, at least one opening slot includes a first opening slot and a second opening slot spaced apart on the first stop portion, the accommodating slot is located in the first opening slot, and the tail end of the winding extends into the second opening slot to be connected to the wiring terminal of the motor.

[0040] In this design, at least one open slot includes a first open slot and a second open slot spaced apart on the first stopper, the receiving slot is located in the first open slot, and the tail end of the winding extends into the second open slot to be connected to the motor terminal. By providing two open slots on the first stopper, the head end and the tail end of the winding are reasonably arranged, the consistency of the arrangement of the winding is improved, and the structure of the frame is more suitable for the reasonable arrangement of the winding.

[0041] In a possible design, further, the first frame also includes a connecting member, the connecting member is connected to the first stop portion and extends away from the second stop portion, and the connecting member is used to cooperate with the busbar of the motor.

[0042] In this design, the first frame also includes a connecting piece, which is connected to the first stopper and extends away from the second stopper, and is used to cooperate with the busbar of the motor. Specifically, the connecting piece is a buckle. A buckle position is provided on the busbar at a position corresponding to the connecting piece, and the buckle is cooperated with the buckle position to connect the stator frame to the busbar.

[0043] In a possible design, further, part of the first stop portion protrudes away from the first limiting portion to construct a first limiting back plate; the first frame also includes a notch, which is arranged on the first limiting back plate corresponding to the connecting member.

[0044] In this design, at least two limiting back plates include a first limiting back plate and a second limiting back plate, wherein a portion of the first stopper protrudes away from the first limiting portion to form the first limiting back plate, and a portion of the second stopper protrudes away from the second limiting portion to form the second limiting back plate, and the first limiting back plate and the second limiting back plate constitute a portion of the installation cavity. Furthermore, a notch is provided on the first limiting back plate corresponding to the position of the connector, and during the injection molding and demolding process of the first frame, the notch avoids interference between the connector and the limiting back plate, ensures that the connector can be demolded normally, simplifies the demolding process of the connector, avoids breakage of the connector, and reduces the structural difficulty of the injection molding mold.

[0045] In a possible design, further, the stator frame also includes a first connection part and a second connection part, the first connection part is arranged on a side of the first frame facing the second frame; the second connection part is arranged on the second frame corresponding to the first connection part, and the second connection part is in contact with the first connection part.

[0046] In this design, the stator frame includes a first connection portion disposed on the first frame toward the second frame, and a second connection portion disposed on the second frame corresponding to the first connection portion, and the first connection portion and the second connection portion are in contact to achieve an insulated connection between the first frame and the second frame. Specifically, the first connection portion and the second connection portion are in an "L"-shaped structure, and the two are plugged into each other, and the structure is simple.

[0047] In a possible design, further, the first connecting portion is bent and / or curved from the first stop portion through the first mounting portion to the first limiting portion and is arranged on the side edge of the first frame; the second connecting portion is bent and / or curved from the second stop portion through the second mounting portion to the second limiting portion and is arranged on the side edge of the second frame.

[0048] In this design, the first connecting portion is bent and / or curved from the first stop portion through the first mounting portion to the first limiting portion and is arranged on the side edge of the first frame, and the second connecting portion is arranged on the side edge of the second frame corresponding to the first connecting portion, thereby enabling the first frame and the second frame to obtain a full-range plug-in connection, thereby ensuring the insulation connection performance of the first frame and the second frame.

[0049] In a possible design, further, the winding is a coil; the slot width of the accommodating slot is greater than or equal to the wire diameter of the coil.

[0050] In this design, the winding is a coil, and the coil can meet various winding requirements of the winding. The slot width of the receiving slot is greater than or equal to the wire diameter of the coil. It is worth noting that the wire diameter refers to the diameter of the coil. By making the slot width greater than or equal to the wire diameter of the coil, the head end of the coil can be completely accommodated in the receiving slot, avoiding the head end of part of the coil not being accommodated in the receiving slot and occupying the winding space.

[0051] In a possible design, further, the winding is a coil, and the wire diameter of the coil is D; the axial angle between the plane where the slot wall of the accommodating slot is located and the plane where the end face of the first mounting part away from the first limiting part is located is α, and the distance between the slot bottom of the accommodating slot and the plane where the wall of the first mounting part away from the second mounting part is located is H, satisfying H*sinα≥D.

[0052] In this design, the winding is a coil, which can meet various winding requirements of the winding. The wire diameter of the coil is D. It is worth noting that the wire diameter refers to the diameter of the coil. The axial angle between the plane where the slot wall of the receiving slot is located and the plane where the end face of the first mounting portion away from the first limiting portion is located is α. It is worth noting that there are multiple angles between the slot wall of the receiving slot and the plane where the end face of the first mounting portion away from the first limiting portion is located, and the angle α is the angle located in the axial direction among the multiple angles. The distance between the bottom of the receiving slot and the plane where the wall of the first mounting portion away from the second mounting portion is located is H, and when the angle α and the distance H satisfy the above relationship, it can ensure that the head end of the coil is completely accommodated in the receiving slot, further avoiding the occupation of the winding space due to the head end of part of the coil not being accommodated in the receiving slot.

[0053] According to a second aspect of the present invention, a motor is provided, comprising a stator frame provided by any of the above designs, the motor further comprising a stator core, at least a portion of which is assembled in a mounting cavity of the stator frame.

[0054] The motor provided by the present invention includes the stator frame described in any of the above technical solutions, and therefore has all the beneficial effects of the stator frame, which will not be repeated here.

[0055] Furthermore, the motor also includes a stator core, at least part of which is arranged in the installation cavity of the stator frame. The stator frame can limit the axial, circumferential and radial movement of the stator core of the motor to ensure the position stability of the stator core.

[0056] In a possible design, further, the installation cavity includes two opening ends which are separated from each other, and the free end of the stator iron protrudes from at least one of the two opening ends and is arranged in the installation cavity.

[0057] In this design, the mounting cavity includes two open ends facing away from each other, and the free end of the stator core protrudes from at least one of the two open ends and is arranged in the mounting cavity. Specifically, the stator core protrudes from the stator frame in the radial direction, and the stator core can also protrude from the outer contour of the stator frame in the circumferential direction. When a plurality of stator frames are arranged inside the motor, adjacent stator frames will not interfere with each other. At the same time, the stator core protruding from the stator frame can facilitate welding between the stator cores. Specifically, the motor includes a plurality of stator frames, and the plurality of stator frames are arranged around the center of the motor shaft of the motor. Adjacent stator frames are connected by welding between the stator cores.

[0058] In a possible design, the motor further includes a bus, the bus includes a bus frame and a matching piece, the matching piece is arranged on the bus frame corresponding to the connecting piece of the stator frame, and the matching piece and the connecting piece cooperate with each other; a terminal is arranged on the bus frame and electrically connected to the tail end of the winding.

[0059] In this design, the busbar includes a base and a matching piece, the base is located on one side of the stator frame, the matching piece is arranged on the busbar frame corresponding to the connecting piece, the matching piece and the connecting piece cooperate with each other to realize the connection between the stator frame and the busbar frame, and the terminal is connected to the busbar frame and electrically connected to the tail end of the winding. Specifically, one end of the terminal is connected to the winding, and the other end of the terminal is connected to the control board of the motor.

[0060] According to a third aspect of the present invention, a water pump is provided, comprising a motor provided by any of the above designs, the water pump also comprising a hydraulic component, the hydraulic component comprising an impeller, and the impeller is fixedly connected to the other end of the stator frame of the motor.

[0061] The water pump provided by the present invention includes the motor described in any of the above technical solutions, and therefore has all the beneficial effects of the motor, which will not be repeated here.

[0062] According to a fourth aspect of the present invention, a vehicle is provided, comprising a water pump provided by any of the above designs, the vehicle also comprising a vehicle interior, and the water pump is installed in the vehicle interior.

[0063] The vehicle provided by the present invention includes the water pump described in any of the above technical solutions, and therefore has all the beneficial effects of the water pump, which will not be repeated here.

[0064] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] 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:

[0066] Figure 1 A schematic structural diagram of a stator frame according to an embodiment of the present invention is shown;

[0067] Figure 2 shows a front view of a stator frame according to one embodiment of the present invention;

[0068] Figure 3 shows a side view of a stator frame according to one embodiment of the present invention;

[0069] Figure 4 shows another side view of a stator frame according to one embodiment of the present invention;

[0070] Figure 5 A top view of a stator frame according to one embodiment of the present invention is shown;

[0071] Figure 6A schematic structural diagram of a first frame in a stator frame according to an embodiment of the present invention is shown;

[0072] Figure 7 A side view of a first frame in a stator frame according to an embodiment of the present invention is shown;

[0073] Figure 8 Another schematic structural diagram of a first frame in a stator frame according to an embodiment of the present invention is shown;

[0074] Fig. 9 Another side view of a first frame in a stator frame according to an embodiment of the present invention is shown;

[0075] Fig.10 A top view of a first frame in a stator frame according to an embodiment of the present invention is shown;

[0076] Fig.11 Shows another side view of a first frame in a stator frame according to an embodiment of the present invention;

[0077] Fig.12 A schematic structural diagram of a second frame in a stator frame according to an embodiment of the present invention is shown;

[0078] Fig.13 Another schematic structural diagram of a second frame in a stator frame according to an embodiment of the present invention is shown;

[0079] Fig.14 A side view of a second frame in a stator frame according to an embodiment of the present invention is shown;

[0080] Fig.15 Another side view of a second frame in a stator frame according to an embodiment of the present invention is shown;

[0081] Fig.16 A top view of a second frame in a stator frame according to an embodiment of the present invention is shown;

[0082] Fig.17 A schematic diagram of the assembly structure of a stator frame and a stator core according to an embodiment of the present invention is shown;

[0083] Fig.18 A front view of a stator frame and a stator core according to an embodiment of the present invention is shown;

[0084] Fig.19 A side view of a stator frame and a stator core according to an embodiment of the present invention is shown;

[0085] Fig. 20Another side view of a stator frame and a stator core according to an embodiment of the present invention is shown;

[0086] Fig.21 A top view of a stator frame and a stator core according to an embodiment of the present invention is shown.

[0087] in, Figures 1 to 21 The corresponding relationship between the reference numerals and the component names is as follows:

[0088] 1 stator frame, 101 mounting portion, 102 stopper portion, 103 limiting portion, 104 limiting back plate, 105 limiting end portion, 105a first side edge, 105b second side edge,

[0089] 11 first frame, 111 first mounting portion, 112 first stop portion, 113 first limiting portion, 114 first limiting back plate, 115 first connecting portion, 116 opening groove, 116a first opening groove, 116b second opening groove, 117 connecting member, 118 notch,

[0090] 12 second frame, 121 second mounting portion, 122 second stop portion, 123 second limiting portion, 124 second limiting back plate, 125 second connecting portion,

[0091] 2 receiving slots,

[0092] 3 mounting cavity, 31 first cavity, 32 second cavity, 34 first opening end, 35 second opening end,

[0093] 41 first opening, 42 second opening,

[0094] 5 winding groove, 51 first winding groove, 52 second winding groove,

[0095] 6. Stator core. DETAILED DESCRIPTION

[0096] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0097] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0098] Refer to the following Figures 1 to 21 A stator frame 1 , a motor, a water pump and a vehicle according to some embodiments of the present invention are described.

[0099] Embodiment 1

[0100] According to a first aspect of the present invention, there is provided a stator frame 1, such as Figure 1 and Figure 2 As shown, for a motor, a stator frame 1 includes a frame, a mounting cavity 3 and a receiving groove 2, the frame includes a mounting portion 101 and a stop assembly, the winding of the motor is assembled on the mounting portion 101, the stop assembly is connected to the end of the mounting portion 101 and extends in a first direction away from the center line of the mounting portion 101, the mounting cavity 3 is arranged through the mounting portion 101 and the stop assembly, the mounting cavity 3 is used to receive the stator core 6 of the motor, the receiving groove 2 is opened on the stop assembly, and the receiving groove 2 is used to receive the head end of the winding.

[0101] The stator frame 1 provided by the present invention comprises a frame and a receiving groove 2, wherein the receiving groove 2 is provided on the frame, the winding is provided on the mounting portion 101 on the frame, and the head end of the winding is accommodated in the receiving groove 2, that is, the head end of the winding does not occupy the winding space on the frame. The stator frame 1 provided by the present invention accommodates the head end of the winding in the receiving groove 2, thereby avoiding the head end of the winding occupying the winding space and causing unnecessary waste of the winding space, avoiding the head end of the winding interfering with the orderly winding of the subsequent winding, ensuring the consistency of the winding and improving the assembly efficiency of the winding.

[0102] Further, the frame includes a stopper assembly, wherein part of the winding is wound on the mounting portion 101; the stopper assembly is connected to the end of the mounting portion 101 and extends in a first direction away from the center line of the mounting portion 101, and the receiving groove 2 is arranged on the stopper assembly.

[0103] In this embodiment, the frame includes a mounting portion 101 and a stop assembly, and the stop assembly is connected to the end of the mounting portion 101, that is, the stop assemblies are provided at both ends of the mounting portion 101, and the stop assembly and the mounting portion 101 constitute a winding space, and part of the winding is wound on the mounting portion 101 and is not in the winding space. The accommodating groove 2 is provided on the stop assembly, and the accommodating groove 2 is connected to the winding space, and the accommodating groove 2 does not occupy the winding space.

[0104] Furthermore, the stopper assembly is connected to the end of the mounting portion 101 and extends in a first direction away from the center line of the mounting portion 101. When the stator frame 1 is assembled in the motor, the center line direction of the mounting portion 101 is perpendicular to the axial direction of the motor, that is, the center line direction of the mounting portion 101 is a radial direction, and the first direction away from the center line of the mounting portion 101 is included in the front and rear direction of the mounting portion 101, or the left and right direction. When combined with the motor, it can be the axial direction of the motor or the circumferential direction of the motor. When the stopper assembly extends along the first direction, on the one hand, the volume of the winding space formed by the stopper assembly and the mounting portion 101 is larger, which can meet the space requirements of the winding. The stopper assembly can achieve a stopping effect on the winding and ensure the position stability of the winding. Specifically, the stopper assembly and the mounting portion 101 are in a "I" shape. On the other hand, the stopper assembly can limit the stator core 6 assembled in the mounting cavity 3 and ensure the position stability of the stator core 6.

[0105] In one embodiment, further, Fig.18 As shown, the frame includes a mounting cavity 3, which is arranged through the mounting portion 101 and the stopper assembly, and the mounting cavity 3 is used to accommodate the stator core 6 of the motor.

[0106] In this embodiment, the frame also includes an installation cavity 3, and the installation cavity 3 is arranged on the installation portion 101 and the stop assembly. Specifically, the installation portion 101 has a first sub-cavity, the stop assembly includes a second sub-cavity, and the second sub-cavity is connected to the first sub-cavity. The installation cavity 3 is used to accommodate the stator core 6 of the motor. When the stop assembly and the installation portion 101 are in an "I" shape, the installation cavity 3 located inside the stop assembly and the installation portion 101 is also in an "I" shape, and the stator core 6 is adapted to the installation cavity 3, that is, the stator core 6 is also in an "I" shape. Specifically, as Figure 2 As shown, the installation cavity 3 has a first opening end 34 and a second opening end 35 which are radially opposite to each other, and the first opening end 34 is arranged closer to the center of the motor than the second opening end 35. Furthermore, the first opening end 34 and the second opening end 35 are flared.

[0107] Embodiment 2

[0108] Different from the aforementioned embodiment 1, the specific structure of the stop assembly is limited in this embodiment, and the stop assembly includes a stop portion 102 and a limiting portion 103, the stop portion 102 is connected to the first end of the mounting portion 101, and the accommodating groove 2 is arranged on the stop portion 102; the limiting portion 103 is connected to the second end of the mounting portion 101, and the extension length of the limiting portion 103 in the first direction is less than or equal to the extension length of the stop portion 102 in the first direction.

[0109] In this embodiment, if Figure 3 and Figure 4As shown, the stop assembly includes a stop portion 102 and a limiting portion 103, the mounting portion 101 has a first end and a second end that are opposite to each other, the stop portion 102 is connected to the first end of the mounting portion 101, the accommodating groove 2 is arranged on the stop portion 102, the limiting portion 103 is connected to the second end of the mounting portion 101, and the extension length of the limiting portion 103 in the first direction is less than or equal to the extension length of the stop portion 102 in the first direction. When the stator frame 1 is assembled in the motor, when the motor casing is cylindrical, the limiting portion 103 is arranged closer to the center of the casing than the stop portion 102. At this time, the limiting portions 103 of multiple stator frames 1 can form an inner ring, and the stopping portions 102 of multiple stator frames 1 can form an outer ring. By limiting the extension lengths of the stop portion 102 and the limiting portion 103 in the first direction, the utilization rate of the internal space of the motor can be improved, so that the structure of the stator frame 1 can be more suitable for the motor. Specifically, when the first direction is the motor axial direction, the axial extension length of the limit portion 103 is equal to the axial extension length of the stop portion 102. When the first direction is the motor circumferential direction, the circumferential extension length of the limit portion 103 is less than the circumferential extension length of the stop portion 102.

[0110] Furthermore, the extending lengths of the stopper portion 102 and the limiting portion 103 in the axial direction of the motor are equal.

[0111] In this embodiment, if Figure 2 and Figure 5 As shown, when the first direction is the axial direction of the motor, the extension lengths of the stopper 102 and the limiting portion 103 in the axial direction of the motor are equal, which can facilitate the assembly and connection of the stator frame 1 with other components in the motor. This is because when the stator frame 1 is assembled in the motor, the axial ends of the stator frame 1 need to cooperate with other structures of the motor. For example, a bus is provided at one end of the stator frame 1, and when the axial extension lengths of the stopper 102 and the limiting portion 103 are equal, the stopper 102 and the limiting portion 103 can be supported and connected to the base of the bus at the same time, thereby making the position of the bus more stable.

[0112] Furthermore, part of the stopper portion 102 protrudes away from the limiting portion 103 to construct at least two limiting back plates 104 , and the at least two limiting back plates 104 constitute part of the installation cavity 3 .

[0113] In this embodiment, part of the stopper 102 protrudes away from the limiting portion 103 to form at least two limiting back plates 104. When the stator core 6 is assembled in the installation cavity 3, the stator core 6 and the inner walls of the at least two limiting back plates 104 fit each other. The limiting back plates 104 can ensure the position stability of the stator core 6 and limit the movement of the stator core 6 in the axial direction of the motor. Specifically, at least two limiting back plates 104 constitute the second open end 35 of the installation cavity 3.

[0114] Furthermore, the frame further includes an opening, and a portion of the stopper portion 102 is recessed toward the installation cavity 3 to form the opening.

[0115] In this embodiment, if Figure 3 and Figure 4 As shown, the frame further includes an opening provided on the stopper 102, which can reduce the deadweight of the stator frame 1, and at the same time can make the wall thickness of each part of the frame uniform, thereby improving the injection molding effect of the stator frame 1. Specifically, the opening is not connected to the mounting cavity 3, thereby ensuring the insulation effect between the winding and the stator core 6. Furthermore, the opening can be a square opening, a circular opening or a special-shaped opening.

[0116] Furthermore, the frame also includes a winding groove 5 , which is arranged on the mounting portion 101 , and the receiving groove 2 is arranged on the wall surface of the stopper assembly facing the mounting portion 101 , and the receiving groove 2 is connected to the winding groove 5 .

[0117] In this embodiment, the mounting portion 101 is provided with a winding groove 5. After the head end of the winding is placed in the receiving groove 2, part of the winding will be embedded in the winding groove 5 for winding. The provision of the winding groove 5 can facilitate the positioning and assembly of the winding, making the winding more regular and neat, further ensuring the orderly winding of the winding. By providing the receiving groove 2 on the wall surface of the stopper assembly facing the mounting portion 101, the head end of the winding can be conveniently provided in the receiving groove 2, reducing the difficulty of assembly.

[0118] Furthermore, if Figure 3 and Figure 4 As shown, at least a portion of the wall surface of the stopper assembly close to the mounting portion 101 is straight.

[0119] In this embodiment, at least part of the wall surface of the stop assembly near the mounting portion 101 is straight, that is, at least part of the wall surface of the limiting portion 103 near the mounting portion 101 is straight, and at least part of the wall surface of the stop portion 102 near the mounting portion 101 is straight. At this time, the curvature of the wall surface of the stop assembly toward the mounting portion 101 is relatively small. When the winding is wound around the stator frame 1, the wire nozzle of the automatic winding equipment will not interfere with the stator frame 1, thereby ensuring the winding efficiency and avoiding increased winding failure, preventing the wall surface of the stop assembly from scratching the winding during the winding process and causing damage to the winding. In addition, the structural difficulty of the automatic winding equipment can be reduced.

[0120] Furthermore, at least a portion of the free ends of the limiting portions 103 have an inclined surface.

[0121] In this embodiment, when the winding is wound on the mounting portion 101 on the frame, the free end of the upper limit portion 103 of the frame will be bent inwardly and upwardly toward the inside of the winding space due to the force on the frame. By making at least part of the free end of the limit portion 103 have an inclined surface, the free end of the limit portion 103 can be prevented from damaging the winding. Specifically, the limit portion 103 includes two free ends along the circumference of the motor and two free ends along the axial direction of the motor. The inclined surface can be set on any free end of the aforementioned four free ends, and can also be set on two opposite free ends of the four free ends according to needs.

[0122] Furthermore, if Figure 3 As shown, the limiting portion 103 has two limiting ends 105 along a non-axial direction and away from each other, and an inclined surface is set on each of the two limiting ends 105; the limiting end 105 has a plurality of side edges, the plurality of side edges include a first side edge 105a close to the mounting portion 101 and a second side edge 105b opposite to the first side edge 105a, and the distance between the two first side edges 105a is greater than the distance between the two second side edges 105b.

[0123] In this embodiment, the limiting portion 103 has two limiting ends 105 located in the non-axial direction and away from each other. Specifically, the limiting ends 105 are two free ends along the circumference of the motor. An inclined surface is provided on each of the two limiting ends 105. The limiting end 105 has a plurality of side edges, a first side edge 105a close to the mounting portion 101 and a second side edge 105b opposite to the first side edge 105a, and both the first side edge 105a and the second side edge 105b are located in the circumference of the motor. And the distance between the two first side edges 105a is greater than the distance between the two second side edges 105b, that is, the distance between the two oppositely arranged inclined surfaces gradually decreases from the first side edge 105a to the second side edge 105b. When the winding is wound on the mounting portion 101 on the frame, the free end of the upper limit portion 103 of the frame will be turned inward toward the inside of the winding space, and the distance between the two opposite limit ends 105 is gradually reduced, thereby preventing the free end of the limit portion 103 from damaging the winding. Specifically, the end faces of the two ends of the limit portion 103 located in the axial direction are straight, thereby achieving a better assembly support effect and facilitating cooperation with other components of the motor.

[0124] Embodiment 3

[0125] Different from the previous embodiment, in this embodiment, the frame is divided from another angle, and the frame includes a first frame 11 and a second frame 12, wherein the first frame 11 and the second frame 12 are connected, the receiving groove 2 is arranged on the first frame 11, and the winding is wound on the first frame 11 and the second frame 12 at the same time.

[0126] In this embodiment, if Figures 6 to 16 As shown, the frame includes a first frame 11 and a second frame 12 connected to each other. The two parts constitute the frame, which is convenient for injection molding of the first frame 11 and the second frame 12 on the one hand, and can simplify the assembly of the stator core 6 on the other hand. Specifically, the first frame 11 has a first cavity 31, and the second frame 12 has a second cavity 32. The first cavity 31 and the second cavity 32 constitute the installation cavity 3. During the assembly of the stator core 6, the stator core 6 can be first placed in the first cavity 31 of the first frame 11, and then the second frame 12 is connected to the first frame 11, which is convenient for assembly. Furthermore, a first winding groove 51 is provided on the first mounting portion 111 of the first frame 11, and a second winding groove 52 is provided on the second mounting portion 121 of the second frame 12. When the first frame 11 is plugged and connected with the second frame 12, the first winding groove 51 and the second winding groove 52 are connected to form a complete winding groove 5.

[0127] Furthermore, if Fig.19 and Fig. 20 As shown, the opening includes a first opening 41 and a second opening 42 . The first opening 41 is disposed on the first stopper 112 , and the second opening 42 is disposed on the second stopper 122 .

[0128] Furthermore, if Fig.10 As shown, the first frame 11 has a first cavity 31 and the second frame 12 has a second cavity 32. When the first frame 11 and the second frame 12 are plugged into each other, the first cavity 31 and the second cavity 32 are connected to form an installation cavity 3 for accommodating the stator core 6.

[0129] Furthermore, under two different division angles, the corresponding relationship between the components under different angles is as follows: Figure 6 , Figure 7 , Fig. 9 and Fig.17 As shown, the first frame 11 includes a first mounting portion 111 and a first stopper 112 and a first limiting portion 113 respectively located at two ends of the first mounting portion 111; Figures 12 to 15 As shown, the second frame 12 includes a second stop portion 122, a second mounting portion 121 and a second limiting portion 123 which are connected in sequence, wherein the second stop portion 122 is connected to the first stop portion 112 to form the stop portion 102 of the stator frame 1, the second mounting portion 121 is connected to the first mounting portion 111 to form the mounting portion 101 of the stator frame 1, and the second limiting portion 123 is connected to the first limiting portion 113 to form the limiting portion 103 of the stator frame 1.

[0130] In this embodiment, the first frame 11 includes a first mounting portion 111 and a first stopper 112 and a first limiting portion 113 respectively located at two ends of the first mounting portion 111. Fig.13 and Fig.14 As shown, the second frame 12 includes a second mounting portion 121 and a second stopper 122 and a second limiting portion 123 respectively located at both ends of the second mounting portion 121, wherein the first limiting portion 113 and the second limiting portion 123, the first mounting portion 111 and the second mounting portion 121, and the first stopping portion 112 and the second stopping portion 122 have a corresponding relationship with each other. Specifically, the first mounting portion 111 and the second mounting portion 121 constitute the mounting portion 101, the first stopping portion 112 and the second stopping portion 122 constitute the stopping portion 102, and the first limiting portion 113 and the second limiting portion 123 constitute the limiting portion 103. By splitting the frame into the first frame 11 and the second frame 12, the first frame 11 and the second frame 12 together constitute the stopping portion 102, the limiting portion 103 and the mounting portion 101 of the stator frame 1, and further reducing the difficulty of injection molding of the stator frame 1. In addition, during the injection molding process, if the first stopper 112 has a problem during the injection molding process, only the first frame 11 having it needs to be scrapped without dealing with the second frame 12 without quality problems, which can effectively reduce the scrap rate of the stator frame 1 during the molding process.

[0131] Furthermore, if Fig.10 , Fig.21 As shown, the frame includes at least one opening groove 116 , which is formed on the side wall of the first stop portion 112 away from the second stop portion 122 , and the accommodating groove 2 is formed on the first stop portion 112 and is located in any one of the at least one opening groove 116 .

[0132] In this embodiment, the frame further includes at least one open slot 116, which is arranged on the side wall of the first stopper 112 away from the second stopper 122, and the open slot 116 is not connected to the mounting cavity 3, thereby ensuring the insulation safety performance between the stator core 6 and the winding. The receiving slot 2 is provided on the first stopper 112 and is located in one of the open slots 116, that is, by making the receiving slot 2 located in the open slot 116, the structural arrangement on the stator frame 1 can be made more reasonable, avoiding the head end of the winding located in the receiving slot 2 protruding from the end surface of the first stopper 112, and ensuring that the stator frame 1 and other components of the motor are mutually adapted.

[0133] Furthermore, if Fig.10 As shown, at least one opening slot 116 includes a first opening slot 116a and a second opening slot 116b spaced apart on the first stopper 112, the receiving slot 2 is located in the first opening slot 116a, and the tail end of the winding extends into the second opening slot 116b to be connected to the motor terminal.

[0134] In this embodiment, at least one opening slot 116 includes a first opening slot 116a and a second opening slot 116b spaced apart on the first stopper 112, the receiving slot 2 is located in the first opening slot 116a, and the tail end of the winding extends into the second opening slot 116b to be connected to the motor terminal. By providing two opening slots 116 on the first stopper 112, the head end and the tail end of the winding are reasonably arranged, the consistency of the arrangement of the winding is improved, and the structure of the frame is more suitable for the reasonable arrangement of the winding.

[0135] Furthermore, if Figure 8 As shown, the first frame 11 further includes a connecting member 117 , which is connected to the first stop portion 112 and extends away from the second stop portion 122 , and is used for being connected with the busbar of the motor.

[0136] In this embodiment, the first frame 11 further includes a connecting member 117, which is connected to the first stopper 112 and extends away from the second stopper 122. The connecting member 117 is used to cooperate with the busbar of the motor. Specifically, the connecting member 117 is a buckle. A buckle position is provided at a position on the busbar corresponding to the connecting member 117, and the buckle is cooperated with the buckle position to connect the stator frame 1 to the busbar.

[0137] Furthermore, if Figures 8 to 11 As shown, part of the first stopper 112 protrudes away from the first limiting portion 113 to form a first limiting back plate 114 ; the first frame 11 further includes a notch 118 , which is arranged on the first limiting back plate 114 corresponding to the connecting member 117 .

[0138] In this embodiment, at least two limiting back plates 104 include a first limiting back plate 114 and a second limiting back plate 124, wherein a portion of the first stopper 112 protrudes away from the first limiting portion 113 to form the first limiting back plate 114, and a portion of the second stopper 122 protrudes away from the second limiting portion 123 to form the second limiting back plate 124, and the first limiting back plate 114 and the second limiting back plate 124 constitute a portion of the installation cavity 3. Furthermore, a notch 118 is provided on the first limiting back plate 114 at a position corresponding to the connecting member 117, and during the injection molding and demolding process of the first frame 11, the notch 118 avoids interference between the connecting member 117 and the limiting back plate 104, ensures that the connecting member 117 can be demolded normally, simplifies the demolding process of the connecting member 117, avoids the breakage of the connecting member 117, and reduces the structural difficulty of the injection molding mold.

[0139] Furthermore, if Fig. 9 and Fig.12As shown, the stator frame 1 further includes a first connection portion 115 and a second connection portion 125 . The first connection portion 115 is arranged on a side of the first frame 11 facing the second frame 12 . The second connection portion 125 is arranged on the second frame 12 corresponding to the first connection portion 115 , and the second connection portion 125 contacts the first connection portion 115 .

[0140] In this embodiment, the stator frame 1 includes a first connection portion 115 disposed on the first frame 11 and facing the second frame 12, and a second connection portion 125 disposed on the second frame 12 corresponding to the first connection portion 115. The first connection portion 115 and the second connection portion 125 are in contact with each other to achieve an insulated connection between the first frame 11 and the second frame 12. Specifically, the first connection portion 115 and the second connection portion 125 are in an "L"-shaped structure, and the two are plugged into each other, and the structure is simple.

[0141] Furthermore, the first connecting portion 115 is bent and / or curved from the first stop portion 112 through the first mounting portion 111 to the first limiting portion 113 and is arranged on the side edge of the first frame 11; the second connecting portion 125 is bent and / or curved from the second stop portion 122 through the second mounting portion 121 to the second limiting portion 123 and is arranged on the side edge of the second frame 12.

[0142] In this embodiment, the first connecting portion 115 is bent and / or curved from the first stop portion 112 to the first mounting portion 111 to the first limiting portion 113 and is arranged on the side edge of the first frame 11, and the second connecting portion 125 is arranged on the side edge of the second frame 12 corresponding to the first connecting portion 115, so that the first frame 11 and the second frame 12 can obtain a full-range plug-in connection, ensuring the insulation connection performance of the first frame 11 and the second frame 12.

[0143] Embodiment 4

[0144] Different from the above-mentioned embodiment, Fig.11 As shown, this embodiment further specifically defines the size of the wire accommodating slot and the winding, and the winding is a coil; the slot width of the accommodating slot 2 is greater than or equal to the wire diameter of the coil.

[0145] In this embodiment, the winding is a coil, and the coil can meet various winding requirements of the winding. The slot width of the receiving slot 2 is greater than or equal to the wire diameter of the coil. It is worth noting that the wire diameter refers to the diameter of the coil. By making the slot width greater than or equal to the wire diameter of the coil, the head end of the coil can be completely accommodated in the receiving slot 2, avoiding the head end of part of the coil not being accommodated in the receiving slot 2 and occupying the winding space.

[0146] Furthermore, if Fig.11As shown, the winding is a coil, and the wire diameter of the coil is D; the axial angle between the plane where the slot wall of the accommodating slot 2 is located and the plane where the end face of the first mounting portion 111 away from the first limiting portion 113 is located is α, and the distance between the slot bottom of the accommodating slot 2 and the plane where the wall of the first mounting portion 111 away from the second mounting portion 121 is located is H, satisfying H*sinα≥D.

[0147] In this embodiment, the winding is a coil, and the coil can meet various winding requirements of the winding. The wire diameter of the coil is D. It is worth noting that the wire diameter refers to the diameter of the coil. The axial angle between the plane where the slot wall of the receiving slot 2 is located and the plane where the end face of the first mounting portion 111 away from the first limiting portion 113 is located is α. It is worth noting that there are multiple angles between the slot wall of the receiving slot 2 and the plane where the end face of the first mounting portion 111 away from the first limiting portion 113 is located, and the angle α is the angle located in the axial direction among the multiple angles. The distance between the bottom of the receiving slot 2 and the plane where the wall of the first mounting portion 111 away from the second mounting portion 121 is located is H, and when the angle α and the distance H meet the above relationship, it can ensure that the head end of the coil is completely accommodated in the receiving slot 2, further avoiding the occupation of the winding space by the head end of part of the coil not being accommodated in the receiving slot 2.

[0148] Embodiment 5

[0149] According to a second aspect of the present invention, a motor is provided, comprising a stator frame 1 provided by any of the above designs, the motor further comprising a stator core 6 , at least a portion of the stator core 6 being assembled in the mounting cavity 3 of the stator frame 1 .

[0150] The motor provided by the present invention includes the stator frame 1 described in any of the above technical solutions, and therefore has all the beneficial effects of the stator frame 1, which will not be described in detail here.

[0151] Furthermore, the motor also includes a stator core 6, at least part of which is disposed in the mounting cavity 3 of the stator frame 1. The stator frame 1 can limit the axial, circumferential and radial movement of the stator core 6 of the motor to ensure the position stability of the stator core 6.

[0152] In one embodiment, further, the installation cavity 3 includes two opening ends which are opposite to each other, and the free end of the stator iron protrudes from at least one of the two opening ends and is arranged in the installation cavity 3 .

[0153] In this embodiment, the mounting cavity 3 includes two open ends facing away from each other, and the free end of the stator core 6 protrudes from at least one of the two open ends and is arranged in the mounting cavity 3. Specifically, the stator core 6 protrudes from the stator frame 1 in the radial direction, and the stator core 6 can also protrude from the outer contour of the stator frame 1 in the circumferential direction. When a plurality of stator frames 1 are arranged inside the motor, adjacent stator frames 1 will not interfere with each other. At the same time, the stator core 6 protruding from the stator frame 1 can facilitate welding between the stator cores 6. Specifically, the motor includes a plurality of stator frames 1, and the plurality of stator frames 1 are arranged around the center of the motor shaft of the motor. Adjacent stator frames 1 are connected by welding between the stator cores 6.

[0154] In one embodiment, the motor further includes a bus, which includes a bus frame and a matching piece, the matching piece is arranged on the bus frame corresponding to the connecting piece 117 of the stator frame 1, and the matching piece and the connecting piece 117 cooperate with each other; a terminal is arranged on the bus frame and electrically connected to the tail end of the winding.

[0155] In this embodiment, the busbar includes a bus frame and a matching piece. The bus frame is located on one side of the stator frame 1. The matching piece is arranged on the bus frame corresponding to the connecting piece 117. The matching piece and the connecting piece 117 cooperate with each other to realize the connection between the stator frame 1 and the bus frame. The terminal is connected to the base and can be electrically connected to the tail end of the winding.

[0156] Embodiment 6

[0157] According to a third aspect of the present invention, a water pump is provided, comprising a motor provided by any of the above designs, the water pump also comprising a hydraulic component, the hydraulic component comprising an impeller, and the impeller is fixedly connected to the other end of the stator frame 1 of the motor.

[0158] The water pump provided by the present invention includes the motor described in any of the above technical solutions, and therefore has all the beneficial effects of the motor, which will not be repeated here.

[0159] Embodiment 7

[0160] According to a fourth aspect of the present invention, a vehicle is provided, comprising a water pump provided by any of the above designs, the vehicle also comprising a vehicle interior, and the water pump is installed in the vehicle interior.

[0161] The vehicle provided by the present invention includes the water pump described in any of the above technical solutions, and therefore has all the beneficial effects of the water pump, which will not be repeated here.

[0162] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0163] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0164] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stator frame for a motor, characterized in that: include: A framework, comprising: A mounting portion, the mounting portion being used to assemble the winding of the motor; a stopper assembly connected to an end of the mounting portion and extending in a first direction away from a center line of the mounting portion; An installation cavity is provided through the installation portion and the stopper assembly, and the installation cavity is used to accommodate the stator core of the motor; An accommodating groove, provided on the stopper assembly, and used for accommodating the head end of the winding; The framework includes: a first frame, wherein the receiving groove is arranged on the first frame; a second frame, the second frame being connected to the first frame, the winding being wound on both the first frame and the second frame; The first frame includes a first mounting portion and a first stopper portion and a first limiting portion respectively located at two ends of the first mounting portion; The second frame includes a second stopper, a second mounting portion, and a second limiting portion which are connected in sequence, wherein the second stopper is connected to the first stopper to form a stopper of the stator frame, the second mounting portion is connected to the first mounting portion to form a mounting portion of the stator frame, and the second limiting portion is connected to the first limiting portion to form a limiting portion of the stator frame; The winding is a coil, and the wire diameter of the coil is D; The angle between the plane where the groove wall of the accommodating groove is located and the plane where the end surface of the first mounting portion away from the first limiting portion is located in the axial direction is α, The distance between the bottom of the accommodating groove and the plane where the wall surface of the first mounting portion away from the second mounting portion is located is H, and H*sinα≥D is satisfied.

2. The stator frame according to claim 1, characterized in that: The stopper assembly comprises: a stopper, the stopper being connected to the first end of the mounting portion, the receiving groove being arranged on the stopper; a limiting portion, the limiting portion being connected to the second end of the mounting portion, the extending length of the limiting portion in the first direction being less than or equal to the extending length of the stopping portion in the first direction; Part of the stop portion protrudes away from the limiting portion to construct at least two limiting back plates, and the at least two limiting back plates constitute part of the installation cavity.

3. The stator frame according to claim 2, characterized in that: The framework also includes: A portion of the stopper is recessed toward the installation cavity to form an opening.

4. The stator frame according to any one of claims 1 to 3, characterized in that: The framework also includes: A winding groove is arranged on the mounting portion, the receiving groove is arranged on the wall surface of the stop assembly facing the mounting portion, and the receiving groove is communicated with the winding groove.

5. The stator frame according to any one of claims 1 to 3, characterized in that: At least a portion of the wall surface of the stopper assembly close to the mounting portion is straight.

6. The stator frame according to claim 2 or 3, characterized in that: At least some of the free ends of the limiting portions have an inclined surface.

7. The stator frame according to claim 6, characterized in that: The limiting portion has two limiting ends along the non-axial direction and away from each other, and the inclined surface is arranged on each of the two limiting ends; The limiting end has a plurality of side edges, the plurality of side edges include a first side edge close to the mounting portion and a second side edge opposite to the first side edge, and a distance between two of the first side edges is greater than a distance between two of the second side edges.

8. The stator frame according to any one of claims 1 to 3, characterized in that: The framework includes: At least one opening groove is formed on a side wall of the first stop portion facing away from the second stop portion, and the accommodating groove is formed on the first stop portion and is located in any one of the at least one opening groove.

9. The stator frame according to claim 8, characterized in that: The at least one opening slot comprises a first opening slot and a second opening slot spaced apart from each other on the first stop portion, the accommodating slot is located in the first opening slot, and the tail end of the winding extends into the second opening slot to be connected to the connection terminal of the motor.

10. The stator frame according to any one of claims 1 to 3, characterized in that: The first framework also includes: A connecting member is connected to the first stop portion and extends away from the second stop portion, and the connecting member is used to cooperate with the busbar of the motor.

11. The stator frame according to claim 10, characterized in that: Part of the first stopper portion protrudes away from the first limiting portion to form a first limiting back plate; The first frame further comprises a notch, which is arranged on the first limiting back plate corresponding to the connecting member.

12. The stator frame according to claim 8, characterized in that The stator frame further comprises: A first connecting portion, disposed on a side of the first frame facing the second frame; a second connection portion, arranged on the second frame corresponding to the first connection portion, the second connection portion being in contact with the first connection portion; The first connecting portion is bent and / or curved from the first stop portion through the first mounting portion to the first limiting portion and is arranged on the side edge of the first frame; The second connecting portion is bent and / or curved from the second stopping portion through the second mounting portion to the second limiting portion and is arranged on a side edge of the second frame.

13. The stator frame according to any one of claims 1 to 3, characterized in that: The winding is a coil; The slot width of the accommodating slot is greater than or equal to the wire diameter of the coil.

14. A motor, characterized in that: include: The stator frame according to any one of claims 1 to 13; A winding, the winding being mounted on a mounting portion of the stator frame; as well as The stator core, at least part of which is assembled in the mounting cavity of the stator frame.

15. The motor according to claim 14, characterized in that The installation cavity comprises two opening ends which are opposite to each other, and the free end of the stator core protrudes from at least one of the two opening ends and is arranged in the installation cavity.

16. The motor according to claim 14, characterized in that The motor also includes: A bus, the bus comprising: Confluence skeleton; A matching piece, which is arranged on the busbar frame corresponding to the connecting piece of the stator frame, and the matching piece and the connecting piece cooperate with each other; A connection terminal is arranged on the bus frame and is electrically connected to the tail end of the winding.

17. A water pump, characterized in that: include: The electric machine as claimed in any one of claims 14 to 16; as well as A hydraulic component includes an impeller, and the impeller is fixedly connected to the other end of the stator frame of the motor.

18. A vehicle, characterized in that: include: Vehicle body; and The water pump according to claim 17, wherein the water pump is installed in the vehicle body.

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