Motor and electrical equipment

Abstract

The utility model discloses a motor and electrical equipment relates to motor technical field, the motor includes stator subassembly and rotor subassembly, the stator subassembly includes stator core, bearing seat, winding, power cord and wire holder, the bearing seat includes mounting portion and end cap, the end cap is connected to the mounting portion, the stator core is mounted in the mounting portion, and the winding is connected to the end cap. The end cover is located on one side of the stator iron core, a wire outlet groove with an opening in the outer side is formed in the peripheral wall of the end cover, the winding is wound around the stator iron core, the power line is connected to the winding, the wire fixing frame is connected to the end, close to the end cover, of the stator iron core, and the wire fixing frame is provided with a first wire containing groove and a first wire fixing part. The rotor sleeves the stator iron core and is connected to one end, far away from the end cover, of the rotating shaft. According to the motor and the electrical equipment, the power line can be led out more conveniently, and potential safety hazards can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor and electrical equipment. Background Art

[0002] The bearing seat of some external rotor motors includes a mounting portion and an end cover. The mounting portion is used to mount the stator core and the rotating shaft. The end cover is located on one side of the axial direction of the stator core. The rotor is connected to the end of the rotating shaft away from the end cover and surrounds the outside of the stator core. Since the rotor surrounds the outside of the stator core and the rotor is connected to the end of the rotating shaft away from the end cover, the power line connected to the winding needs to be led out from the side of the stator core close to the end cover.

[0003] In the related art, a wire outlet hole is opened on the end cover. When assembling the motor, the power cord needs to be passed through the wire outlet hole and pulled outward. Not only is the operation inconvenient, but it is also easy for the connection between the power cord and the winding to have poor contact or even break when pulling the power cord, posing a safety hazard. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a motor, which not only makes it more convenient to output the power cord, but also can avoid poor contact or even breakage at the connection position between the power cord and the winding, thereby reducing safety hazards.

[0005] The utility model also provides an electrical device having the motor.

[0006] According to the first aspect of the utility model, the motor comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a stator core, a bearing seat, a winding, a power cord and a wire fixing frame, wherein the bearing seat comprises a mounting portion and an end cover, wherein the end cover is connected to the mounting portion, wherein the stator core is mounted on the mounting portion, wherein the end cover is located on one side of the axial direction of the stator core, wherein the outer peripheral wall of the end cover is provided with a wire outlet groove with an outer opening, wherein the winding is wound around the stator core, wherein the power cord is connected to the winding, wherein the power cord is suitable for being discharged from the wire outlet groove, wherein the wire fixing frame is connected to an end of the stator core close to the end cover, wherein the wire fixing frame is provided with a first wire accommodating groove and a first wire fixing portion, wherein the power cord is accommodated in the first wire accommodating groove, wherein the first wire fixing portion is used for fixing the power cord in the first wire accommodating groove, wherein the rotor assembly comprises a bearing, a rotating shaft and a rotor, wherein the bearing is mounted on the bearing seat, wherein the rotating shaft is mounted on the bearing, and wherein the rotor is sleeved on the outer side of the stator core and connected to an end of the rotating shaft away from the end cover.

[0007] The motor according to the embodiment of the utility model has at least the following beneficial effects:

[0008] Since the wire outlet groove is arranged on the outer peripheral wall of the end cover, the wire outlet groove is in the shape of a groove opening outward, and the power cord can be easily led out of the wire outlet groove without the need for threading and pulling the wire. Not only is the operation more convenient, but also the connection position between the power cord and the winding can be avoided from having poor contact or even breakage. At the same time, the first wire accommodating groove of the wire fixing frame can accommodate the power cord, and the first wire fixing part can fix the power cord in the first wire accommodating groove, and further the connection position between the power cord and the winding can be avoided from having poor contact or even breakage, thereby reducing safety hazards and improving manufacturability. In addition, when the motor is connected to an external device through the end cover, the interference of the power cord on the motor installation can be reduced, and the practicality is better.

[0009] According to some embodiments of the present invention, the first wire fixing portion is arranged on the bottom surface of the first wire accommodating groove, and is arched in a direction away from the bottom surface of the first wire accommodating groove to form a mounting hole; the stator assembly also includes a binding strap, which can be passed through the mounting hole and fix the power cord to the first wire fixing portion.

[0010] According to some embodiments of the present invention, two side walls of the first wire accommodating groove are provided with clearance grooves, and the two clearance grooves are respectively located on both sides of the first wire fixing portion, and the clearance grooves are used for the binding belt to pass through.

[0011] According to some embodiments of the present invention, the winding includes a lead wire connected to the power line, and the lead wire is accommodated in the first wire accommodating groove.

[0012] According to some embodiments of the present invention, the wire fixing frame is provided with a first wire groove connected to the first wire accommodating groove, and the lead-out wire is passed through the first wire groove and accommodated in the first wire accommodating groove.

[0013] According to some embodiments of the utility model, a protective cover is provided at a connection position between the lead wire and the power line; and / or a protective cover is provided at a connection position between the lead wire and the winding.

[0014] According to some embodiments of the utility model, the winding is connected to a neutral wire, the wire fixing frame is provided with a second wire accommodating groove and a second wire fixing portion, the neutral wire is accommodated in the second wire accommodating groove, and the second wire fixing portion is used to fix the neutral wire in the second wire accommodating groove.

[0015] According to some embodiments of the present invention, the wire fixing frame is provided with a second wire trough connected to the second wire accommodating trough, and the neutral wire is passed through the second wire trough and accommodated in the second wire accommodating trough.

[0016] According to some embodiments of the utility model, the stator assembly also includes a first insulating frame and a second insulating frame, the first insulating frame is arranged at one end of the stator core close to the end cover, the wire fixing frame is buckled with the first insulating frame, the second insulating frame is arranged at one end of the stator core away from the end cover, the wire fixing frame is provided with a circumferential limiting portion, and the circumferential limiting portion abuts the first insulating frame to limit the rotation of the wire fixing frame around the axis of the stator core.

[0017] According to some embodiments of the present utility model, the stator assembly further includes a wire fixing sleeve, which is detachably disposed in the wire outlet slot, and the power cord is passed through the wire fixing sleeve.

[0018] According to some embodiments of the utility model, one of the side wall of the wire outlet slot and the wire fixing sleeve is provided with a clamping portion, and the other is provided with a clamping slot, the clamping portion is clamped in the clamping slot, and the wire fixing sleeve can move in a direction away from the axis of the stator core until the clamping portion is separated from the clamping slot.

[0019] According to some embodiments of the present invention, the stator assembly further includes a locking member, which is detachably provided on the end cover, and the locking member abuts against a side of the wire fixing sleeve that is away from the axis of the stator core.

[0020] The electrical device according to the second embodiment of the utility model includes the motor described in the first embodiment.

[0021] The electrical equipment according to the embodiment of the utility model has at least the following beneficial effects:

[0022] By adopting the motor described in the first aspect of the utility model, there is no need to thread or pull the power cord when it is connected, which not only makes the operation more convenient, but also prevents the power cord from having poor contact or even breakage at the connection position between the power cord and the winding. At the same time, the first wire accommodating groove of the wire fixing frame can accommodate the power cord, and the first wire fixing portion can fix the power cord in the first wire accommodating groove, thereby further avoiding poor contact or even breakage at the connection position between the power cord and the winding, thereby reducing safety hazards and improving manufacturability.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 A cross-sectional view of a motor according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 An exploded diagram of the stator assembly;

[0027] Figure 3 for Figure 2 Schematic diagram of the structure of the stator core;

[0028] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0029] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0030] Figure 6 for Figure 2 Schematic diagram of the structure of the middle bearing seat;

[0031] Figure 7 for Figure 2 Structural schematic diagram of the middle fixed wire sleeve;

[0032] Figure 8 for Figure 2 Structural diagram of the middle wire rack;

[0033] Fig. 9 This is a connection diagram for the power cord and lead wires.

[0034] Figure Number:

[0035] Stator assembly 10;

[0036] Stator core 100; core slot 101;

[0037] Bearing seat 200; mounting portion 201; end cover 202; wire outlet groove 203; clamping portion 204;

[0038] Winding 300; lead wire 301; protective cover 302;

[0039] Power cord 400;

[0040] The wire fixing frame 500; the first wire accommodating groove 501; the first wire fixing portion 502; the mounting hole 503; the clearance groove 504; the first wire groove 505; the second wire accommodating groove 506; the second wire fixing portion 507; the second wire groove 508; the circumferential limiting portion 509; the buckle 510;

[0041] First insulating frame 600; second insulating frame 601; slot 602; step 603;

[0042] Wire fixing sleeve 700; card slot 701;

[0043] Locking member 800;

[0044] Insulation sheet 900;

[0045] Rotor assembly 20;

[0046] Bearing 1000;

[0047] Rotating shaft 1100;

[0048] Rotor 1200. DETAILED DESCRIPTION

[0049] The embodiments of the present invention are described in detail below, and 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 invention, and cannot be understood as limiting the present invention.

[0050] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In the description of the present utility model, "a plurality" refers to two or more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0052] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0053] The outer rotor motor includes a stator assembly and a rotor assembly. The stator assembly includes a bearing seat, a stator core and a winding, etc. The rotor assembly includes a rotating shaft and a rotor, etc. The bearing seat of some outer rotor motors includes a mounting portion and an end cover. The end cover is connected to the mounting portion. The stator core can be sleeved on the outside of the mounting portion. The end cover is located on one side of the stator core. The end cover can play a sealing role. In addition, the motor can be installed on an external device through the end cover. The rotating shaft can be installed on the mounting portion through a bearing, and the rotor surrounds the stator core. The rotor is connected to the end of the rotating shaft away from the end cover.

[0054] Since the rotor surrounds the outside of the stator core, and the rotor is connected to the end of the shaft away from the end cover, in order to avoid interference between the power cord connected to the winding and the rotor, the power cord needs to be led out from the side of the stator core close to the end cover. In the prior art, a wire outlet hole is generally set on the end cover. When assembling the motor, the power cord is passed through the wire outlet hole, and then the stator core is pressed onto the mounting portion, and the power cord is pulled outward while being pressed. In this way, not only is the operation troublesome, but when the power cord is pulled, it is easy to cause poor contact or even breakage at the connection position between the power cord and the winding, thereby posing a safety hazard and poor manufacturability. In addition, since the motor may need to be connected to an external device through the end cover, the power cord led out of the wire outlet hole may also interfere with the installation of the motor.

[0055] Therefore, the utility model proposes a motor and an electrical device, which can effectively improve the above problems.

[0056] Reference below Figures 1 to 9 The present invention describes a motor and an electrical device according to an embodiment of the present invention.

[0057] According to the motor of the first embodiment of the utility model, Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, it includes a stator assembly 10 and a rotor assembly 20 , wherein the stator assembly 10 includes a stator core 100 , a bearing seat 200 , a winding 300 , a power line 400 and a wire frame 500 , and the rotor assembly 20 includes a bearing 1000 , a rotating shaft 1100 and a rotor 1200 .

[0058] Among them, the stator core 100 may include a yoke and a plurality of teeth. The plurality of teeth may be arranged on the outer peripheral wall of the yoke and arranged at intervals along the circumference of the yoke. A core slot 101 may be formed between two adjacent teeth. The yoke may be provided with a connecting hole extending axially therethrough.

[0059] The bearing seat 200 may include a mounting portion 201 and an end cover 202. The outer wall of the mounting portion 201 may be a cylindrical surface. The yoke of the stator core 100 may be sleeved outside the mounting portion 201 through a connecting hole. The yoke of the stator core 100 may be interference fit with the mounting portion 201. Two bearing chambers may be provided in the mounting portion 201. The end cover 202 may be connected to one axial end of the mounting portion 201. The end cover 202 may play a sealing role. In addition, the motor may be installed on an external device through the end cover 202. The outer peripheral wall of the end cover 202 is provided with a wire outlet groove 203. The wire outlet groove 203 is opened at the radial outer side of the stator core 100. The wire outlet groove 203 may pass through the end cover 202 in the axial direction of the stator core 100.

[0060] The winding 300 is wound around the stator core 100 . Specifically, the winding 300 is wound outside the teeth of the stator core 100 . The winding 300 may be connected to a lead wire 301 such as an enameled wire.

[0061] The power cord 400 is connected to the winding 300. Specifically, multiple power cords 400 can be provided. For example, when the winding 300 is a three-phase winding, three power cords 400 can be provided. The three power cords 400 can be respectively connected to the three lead wires 301 of the winding 300. The power cord 400 is used to connect to an external power supply, and the power cord 400 is suitable for being output from the outlet slot 203.

[0062] The wire fixing frame 500 is arranged at one end of the stator core 100 close to the end cover 202. The wire fixing frame 500 is provided with a first wire accommodating groove 501 and a first wire fixing portion 502. The power line 400 is accommodated in the first wire accommodating groove 501. The first wire fixing portion 502 is used to fix the power line 400 in the first wire accommodating groove 501. For example, the wire fixing frame 500 can be made of an electrically insulating material. The wire fixing frame 500 can be annular and surround the outside of the mounting portion 201 to avoid interference with the mounting portion 201. The first wire accommodating groove 501 can be roughly arc-shaped and extend along the circumference of the stator core 100. Of course, the first wire accommodating groove 501 can also be linear. One or more first wire fixing portions 502 can be provided according to actual needs. When multiple first wire fixing portions 502 are provided, multiple first wire fixing portions 502 can be arranged roughly along the circumference of the stator core 100. The portion of the power line 400 located in the stator assembly 10 may be accommodated in the first line receiving groove 501 and fixed by the first line fixing portion 502 .

[0063] The bearing 1000 can be installed in the bearing chamber of the bearing seat 200, the rotating shaft 1100 can be rotatably installed on the bearing 1000, and the rotor 1200 may include a yoke, a permanent magnet and a connecting wall. The yoke is sleeved on the outer side of the stator core 100, the permanent magnet is attached to the inner surface of the yoke, and the connecting wall is connected to the end of the rotating shaft 1100 away from the end cover 202.

[0064] When the stator assembly 10 needs to be assembled, the winding 300 can be wound on the stator core 100, and the power cord 400 can be connected to the lead-out wire 301 of the winding 300. Then, the stator core 100 is press-fitted onto the outside of the mounting portion 201 of the bearing seat 200. Finally, the power cord 400 in the stator assembly 10 is accommodated in the first wire accommodating groove 501, and the first wire fixing portion 502 fixes the power cord 400 in the first wire accommodating groove 501. The power cord 400 outside the stator assembly 10 can be led out from the lead-out groove 203.

[0065] According to the motor of the utility model, since the outlet groove 203 is arranged on the outer peripheral wall of the end cover 202, the outlet groove 203 is a groove-shaped groove that opens outward, and the power cord 400 can be easily led out from the outlet groove 203 without threading or pulling the wire, which is not only more convenient to operate, but also does not cause the connection position of the power cord 400 and the winding 300 to be poorly contacted or even broken, thereby reducing safety hazards and improving manufacturability. In addition, when the motor is connected to an external device through the end cover 202, it can also reduce the interference of the power cord 400 with the installation of the motor, and the practicality is better.

[0066] In addition, the power cord 400 is accommodated in the first wire-containing groove 501 to achieve arrangement, and is fixed by the first fixed wire part 502, which can not only avoid the power cord 400 being arranged in a disorderly manner in the motor, causing the power cord 400 to be entangled, interfere with the components in the motor, or even damage the power cord 400. And when assembling the motor, it can further avoid the poor contact or even breakage of the connection position of the power cord 400 and the winding 300, and when the motor is running, it can also avoid the poor contact or even breakage of the connection position of the power cord 400 and the winding 300, and the safety is better. In addition, due to the first fixed wire part 502, the lead-out wire 301 of the winding 300 and the power cord 400 only need to be reliably connected by simple welding or terminal connection, the structure is simpler, and the connection is more convenient. Finally, it can also ensure the consistency of the outlet position of the power cord 400 and the consistency of the outlet length, thereby improving the manufacturability of the later outlet.

[0067] refer to Figure 8 As shown, in a further embodiment of the present invention, the first wire fixing portion 502 is arranged on the bottom surface of the first wire accommodating groove 501, and arches in a direction away from the bottom surface of the first wire accommodating groove 501 to form an installation hole 503 for the binding belt to pass through, and the binding belt is used to bind the power cord 400.

[0068] For example, the first wire fixing portion 502 may be arc-shaped, and both ends of the first wire fixing portion 502 are connected to the bottom surface of the first wire accommodating slot 501. A mounting hole 503 is formed between the first wire fixing portion 502 and the bottom surface of the accommodating slot, and the mounting hole 503 may penetrate substantially along the radial direction of the stator core 100. A binding belt may be inserted into the mounting hole 503, and the binding belt may bind the power cord 400 in the first wire accommodating slot 501, thereby arranging and fixing the power cord 400, with a simple structure, convenient operation, and good wire fixing effect.

[0069] It is understandable that the first wire fixing portion 502 may also be other suitable wire fixing structures, for example, it may also be a line card.

[0070] refer to Figure 8As shown, in a further embodiment of the utility model, two side walls of the first wire accommodating groove 501 are provided with a clearance groove 504, and the two clearance grooves 504 are respectively located on both sides of the first wire fixing portion 502, and the clearance grooves 504 are for the binding belt to pass through. For example, the two clearance grooves 504 can be arranged roughly along the radial direction of the stator core 100, one of the clearance grooves 504 is located on the side of the first wire fixing portion 502 close to the axis of the stator core 100, and the other clearance groove 504 is located on the side of the first wire fixing portion 502 away from the axis of the stator core 100. The provision of the clearance groove 504 makes it more convenient to use the binding belt to bind the power cord 400, further improving the convenience of operation.

[0071] It should be noted that the first wire accommodating groove 501 may also be provided with clearance holes on the side walls on both sides of the first wire fixing portion 502 for the binding belt to pass through.

[0072] refer to Figure 8 As shown, in a further embodiment of the present invention, a through hole is provided on the bottom surface of the first wire accommodating groove 501, the through hole is located on the side of the first wire fixing portion 502 close to the axis of the stator core 100, and the through hole is connected to the mounting hole 503. In this embodiment, such a configuration not only makes the threading space of the power cord 400 larger, but also the through hole has a certain heat dissipation effect, thereby making the heat dissipation effect of the motor better, and in addition, it is more convenient to demold when the wire fixing frame 500 is injection molded.

[0073] refer to Figure 8 and Fig. 9 As shown, in some embodiments of the present invention, the winding 300 includes a lead wire 301, the lead wire 301 is accommodated in the first wire accommodating groove 501, and the power line 400 is connected to the lead wire 301. For example, when the winding 300 is a three-phase winding, three lead wires 301 may be provided, and three power lines 400 may be provided. The three power lines 400 may be respectively connected to the three lead wires 301 of the winding 300, and the lead wire 301 and the power line 400 may be connected by welding or terminals.

[0074] In this embodiment, the lead wire 301 of the winding 300 is also accommodated in the first wire-accommodating slot 501 for arrangement, and can also be fixed by the first fixed wire portion 502, which can not only avoid the lead wire 301 being arranged in a disorderly manner in the stator assembly 10, but also avoid the lead wire 301 from being entangled, interfering with the components in the stator assembly 10, or even damaging the lead wire 301. Moreover, when assembling the motor, it can further avoid the power line 400 and the lead wire 301 from being in poor contact or even broken, and when the motor is running, it can also avoid the power line 400 and the lead wire 301 from being in poor contact or even broken, and the safety is better. In addition, the lead wire 301 and the power line 400 only need to be reliably connected by simple welding or terminal connection, and the structure is simpler and the connection is more convenient. Finally, the lead wire 301 is accommodated in the first wire-accommodating slot 501, and then does not need to occupy the space of the core slot 101 of the stator core 100, which can improve the slot full rate, reduce the size of the core slot 101, and then reduce the size of the motor.

[0075] It is understandable that the lead wire 301 may be an enameled wire, a wrapped wire or other suitable wires, which will not be described in detail here.

[0076] refer to Figure 1 , Figure 2 and Figure 8 As shown, in a further embodiment of the present invention, the wire fixing frame 500 is provided with a first wire groove 505 communicating with the first wire containing groove 501 , and the lead wire 301 is passed through the first wire groove 505 .

[0077] For example, the first wire accommodating groove 501 can be located on the side of the wire fixing frame 500 away from the stator core 100, the wire fixing frame 500 can be annular, and the wire fixing frame 500 surrounds the outer side of the mounting portion 201. The first wire groove 505 can be arranged on the inner side of the wire fixing frame 500, that is, the side of the wire fixing frame 500 close to the mounting portion 201. The first wire groove 505 can extend and penetrate roughly along the axial direction of the stator core 100. One end of the first wire groove 505 is connected to the first wire accommodating groove 501, and the other end of the first wire groove 505 is close to the stator core 100. The number of the first wire grooves 505 can be the same as the number of the lead wires 301 and correspond one-to-one with the lead wires 301. For example, when there are three lead wires 301, there can be three first wire grooves 505, and they are arranged along the circumferential direction of the stator core 100. In this way, the arrangement of the lead wires 301 is more neat. After being led out from the winding 300 , the lead wire 301 is first guided through the first wire groove 505 , and then enters the first wire receiving groove 501 for receiving.

[0078] In this embodiment, the first wire groove 501 is located on the side of the wire fixing frame 500 away from the stator core 100, which can prevent the lead wire 301 and the power line 400 from contacting the winding 300 too much and causing the risk of short circuit or leakage, and has better safety. The first wire groove 505 is provided to guide the lead wire 301, and further prevent the lead wire 301 from being arranged in a disorderly manner in the stator assembly 10, causing the lead wire 301 to be entangled, interfere with the components in the stator assembly 10, or even damage the lead wire 301.

[0079] refer to Fig. 9 As shown, in a further embodiment of the present invention, a protective sleeve 302 is sleeved at the connection position between the lead wire 301 and the power cord 400. For example, the protective sleeve 302 can be a heat shrink tube. When in use, the heat shrink tube is sleeved outside the connection position between the lead wire 301 and the power cord 400, and then the heat shrink tube is heated. The heat shrink tube shrinks due to the heat and can be closely attached to the connection position between the lead wire 301 and the power cord 400.

[0080] In this embodiment, the connection position of the lead wire 301 and the power line 400 is covered with a protective sleeve 302, so as to protect the connection position of the lead wire 301 and the power line 400 and improve the structural strength, which can not only prevent the connection position of the lead wire 301 and the power line 400 from rusting, resulting in poor contact or even breakage, but also reduce the connection position of the lead wire 301 and the power line 400 from being subjected to external forces, resulting in poor contact or even breakage. The protective sleeve 302 is set to heat shrink, which is easy to install and has a good protective effect.

[0081] It should be noted that the protective sleeve 302 may also be other structures, for example, it may be an elastic rubber sleeve. In addition, the connection position between the lead wire 301 and the winding 300 may also be covered with a protective sleeve 302, so as to protect the connection position between the lead wire 301 and the winding 300 and improve the structural strength, which can not only prevent the connection position between the lead wire 301 and the winding 300 from rusting, resulting in poor contact or even breakage, but also reduce the connection position between the lead wire 301 and the winding 300 from being subjected to external forces, resulting in poor contact or even breakage.

[0082] refer to Figure 8As shown, in some embodiments of the present invention, the winding 300 is connected with a neutral line, the wire fixing frame 500 is provided with a second wire accommodating groove 506 and a second wire fixing portion 507, the neutral line is accommodated in the second wire accommodating groove 506, and the second wire fixing portion 507 is used to fix the neutral line in the second wire accommodating groove 506. For example, the neutral line can be welded to the winding 300 or connected through a terminal, the second wire accommodating groove 506 can be roughly arc-shaped, the second wire accommodating groove 506 can extend roughly along the circumference of the stator core 100, the second wire accommodating groove 506 can be connected to the first wire accommodating groove 501, and of course, the second wire accommodating groove 506 can also not be connected to the first wire accommodating groove 501. One or more second wire fixing portions 507 can be provided according to actual needs. When multiple second wire fixing portions 507 are provided, the multiple second wire fixing portions 507 can be arranged roughly along the circumference of the stator core 100.

[0083] In this embodiment, the neutral wire of the winding 300 is accommodated and arranged by the second wire accommodating groove 506 and fixed by the second wire fixing portion 507. This not only prevents the neutral wire from being arranged in a disorderly manner in the stator assembly 10, which may cause the neutral wire to be entangled, interfere with components in the stator assembly 10, or even damage the neutral wire, but also the neutral wire is accommodated in the second wire accommodating groove 506, and thus does not need to occupy the space of the core slot 101 of the stator core 100, which can improve the slot fill rate, reduce the size of the core slot 101, and thus reduce the size of the motor.

[0084] It can be understood that the neutral line is the connecting line of the neutral point of the winding 300. Setting the neutral line can protect the motor. In addition, it can also adjust the voltage and current distributed to the three-phase winding to make the motor run more smoothly. The neutral line is a common component of the motor and will not be repeated here.

[0085] refer to Figure 1 , Figure 2 and Figure 8 As shown, in a further embodiment of the present invention, the wire fixing frame 500 is provided with a second wire groove 508 communicating with the second wire accommodating groove 506 , and the neutral wire is passed through the second wire groove 508 .

[0086] For example, the second wire accommodating groove 506 can be located on the side of the wire fixing frame 500 away from the stator core 100, the wire fixing frame 500 can be annular, and the wire fixing frame 500 surrounds the outside of the mounting portion 201. The second wire groove 508 is provided on the inner side of the wire fixing frame 500, that is, the side of the wire fixing frame 500 close to the mounting portion 201. The second wire groove 508 can extend and penetrate substantially along the axial direction of the stator core 100, one end of the second wire groove 508 is connected to the second wire accommodating groove 506, and the other end of the second wire groove 508 is close to the stator core 100. After the neutral line is led out from the winding 300, it is first guided through the second wire groove 508, and then enters the second wire groove 508 for storage.

[0087] In this embodiment, the second wire groove 506 is located on the side of the wire fixing frame 500 away from the stator core 100, which can avoid the neutral line from contacting the winding 300 too much and causing the risk of short circuit or leakage, and has better safety. The second wire groove 508 is provided to guide the neutral line, thereby further avoiding the situation where the neutral line is arranged in a disorderly manner in the stator assembly 10, causing the neutral line to be entangled, interfere with the components in the stator assembly 10, or even damage the neutral line.

[0088] refer to Figure 8 As shown, in a further embodiment of the present invention, the second wire fixing portion 507 can be set as a wire clip, and the second wire fixing portion 507 and the wire fixing frame 500 are enclosed to form a wire fixing groove, and the neutral wire in the second wire containing groove 506 is clamped in the wire fixing groove. In this way, the second wire fixing portion 507 is not only simple in structure, but also easy to operate when fixing the wire, and the wire fixing effect is good.

[0089] It should be noted that the second wire fixing portion 507 may also be other structures, for example, a structure similar to that of the first wire fixing portion 502 .

[0090] In a further embodiment of the utility model, a protective sleeve 302 may be provided outside the connection position between the neutral line and the winding 300. The protective sleeve 302 may be a heat shrink tube. When in use, the heat shrink tube is provided outside the connection position between the neutral line and the winding 300. The heat shrink tube is then heated. The heat shrink tube shrinks due to the heat and can be tightly attached to the connection position between the neutral line and the winding 300.

[0091] In this embodiment, the connection position between the neutral line and the winding 300 is covered with a protective sleeve 302, so as to protect the connection position between the neutral line and the winding 300 and improve the structural strength, which can not only prevent the connection position between the neutral line and the winding 300 from rusting and causing poor contact or even breakage, but also reduce the connection position between the neutral line and the winding 300 from being subjected to external forces and causing poor contact or even breakage. The protective sleeve 302 is configured to be heat shrinkable, which is easy to install and has a good protective effect.

[0092] refer to Figure 3 and Figure 8 As shown, in some embodiments of the present invention, the stator assembly 10 further includes a first insulating frame 600, which is disposed at one end of the stator core 100 close to the end cover 202, the wire fixing frame 500 is buckled with the first insulating frame 600, and the wire fixing frame 500 is provided with a circumferential limiting portion 509, which abuts against the first insulating frame 600 to limit the rotation of the wire fixing frame 500 around the axis of the stator core 100.

[0093] For example, a second insulating frame 601 may be provided at one end of the stator core 100 away from the end cover 202, the winding 300 is wound between the first insulating frame 600 and the second insulating frame 601, the wire fixing frame 500 may be provided with a buckle 510, the first insulating frame 600 may be provided with a buckle groove, and the wire fixing frame 500 is buckled with the first insulating frame 600 by the cooperation between the buckle 510 and the buckle groove. A plurality of circumferential limiting portions 509 may be provided, some of which may be located on the inner side of the wire fixing frame 500, and some of which may be located on the outer side of the wire fixing frame 500, and the circumferential limiting portions 509 abut against the first insulating frame 600 on at least one side of the stator core 100 in the circumferential direction.

[0094] In this embodiment, the first insulating frame 600 and the second insulating frame 601 are provided, which can play an insulating role, avoid the risk of short circuit and leakage caused by the winding 300 directly contacting the stator core 100, and have better safety. The first insulating frame 600 and the second insulating frame 601 are common structures of the stator assembly 10, and their structures are not repeated here. The wire fixing frame 500 is buckled with the first insulating frame 600, which is convenient for installation. Since the buckle 510 is small in size and has low structural strength, when the staff applies a circumferential force to the wire fixing frame 500 during assembly, it is easy to damage the buckle 510. In this embodiment, a circumferential limiting portion 509 is provided on the wire fixing frame 500, and the circumferential limiting portion 509 abuts against the first insulating frame 600 along at least one side of the circumference of the stator core 100, which can limit the rotation of the wire fixing frame 500, thereby avoiding damage to the buckle 510, and having better practicality.

[0095] It should be noted that the buckle 510 may also be provided on the first insulating frame 600, and correspondingly, the buckle groove is provided on the wire fixing frame 500. The circumferential limiting portion 509 may abut against the first insulating frame 600 on one side along the circumference of the stator core 100, or the circumferential limiting portion 509 may abut against the first insulating frame 600 on both sides along the circumference of the stator core 100. When only one side abuts against the first insulating frame 600, at least two circumferential limiting portions 509 have opposite abutting directions to achieve circumferential limiting of the wire fixing frame 500.

[0096] refer to Figure 1 , Figure 2 and Figure 7 As shown, in some embodiments of the present invention, the stator assembly 10 further includes a wire fixing sleeve 700, which is detachably disposed in the wire outlet slot 203, and the power cord 400 is passed through the wire fixing sleeve 700. The wire fixing sleeve 700 may be provided with a wire fixing hole, and all power cords 400 are passed through the wire fixing hole. When the power cord 400 needs to be led out, the wire fixing sleeve 700 can be installed in the wire outlet slot 203, which makes it more convenient to lead out, and can prevent the power cord 400 from being led out in a disorderly manner, and the lead out consistency is better.

[0097] refer to Figure 1 , Figure 6 and Figure 7 As shown, in a further embodiment of the present invention, one of the side wall of the outlet groove 203 and the wire fixing sleeve 700 is provided with a clamping portion 204, and the other is provided with a clamping slot 701, the clamping portion 204 is clamped in the clamping slot 701, and the wire fixing sleeve 700 can move in a direction away from the axis of the stator core 100 to separate the clamping portion 204 from the clamping slot 701. For example, the wire fixing sleeve 700 can be provided with a connecting portion, the clamping slot 701 can be provided at the connecting portion, the clamping portion 204 can be provided on the side wall of the outlet groove 203, the clamping portion 204 can be in a long strip shape, and the two ends of the clamping portion 204 can be located at both sides of the outlet groove 203 and extend to the outer peripheral wall of the end cover 202.

[0098] When the wire fixing sleeve 700 needs to be installed, the wire fixing sleeve 700 is moved in a direction close to the axis of the stator core 100 so that the clamping portion 204 is clamped in the corresponding clamping groove 701. When the wire fixing sleeve 700 needs to be removed, the wire fixing sleeve 700 is moved in a direction away from the axis of the stator core 100 until the clamping portion 204 is separated from the clamping groove 701. The structure is simple and the operation is convenient. Moreover, the wire fixing sleeve 700 can only be removed by moving it in the radial direction of the stator core 100, thereby preventing the power cord 400 from moving randomly in the axial direction of the stator core 100, and the power cord 400 has a better outlet effect.

[0099] It is understandable that the clamping portion 204 may be disposed on the wire fixing sleeve 700, and the clamping slot 701 may be disposed on the side wall of the wire outlet slot 203. In addition, the wire fixing sleeve 700 may also be detachably disposed in the clamping slot 701 in other ways, for example, by a fastener.

[0100] refer to Figure 1 and Figure 2 As shown, in a further embodiment of the present invention, the stator assembly 10 further includes a locking member 800, which is detachably provided on the end cover 202, and the locking member 800 abuts against the side of the wire fixing sleeve 700 that is away from the axis of the stator core 100. For example, the locking member 800 may be provided as a plate-like structure, and the locking member 800 may be detachably installed on the end cover 202 by means of a fastener or a snap connection, and a locking groove may be provided on the side of the locking member 800 that is close to the axis of the stator core 100, and the side wall of the locking groove abuts against the side of the wire fixing sleeve 700 that is away from the axis of the stator core 100.

[0101] In this embodiment, a locking member 800 is provided to lock the wire sleeve 700, so as to prevent the clamping portion 204 from sliding out of the clamping slot 701 at will, thereby ensuring the installation reliability of the wire sleeve 700. Moreover, the locking member 800 only abuts against the side of the wire sleeve 700 that is away from the axis of the stator core 100. Compared with the locking member 800 having a sleeve hole and being sleeved on the outside of the wire sleeve 700 through the sleeve hole, it is not only more convenient to operate, but also more suitable for the case where a connector is provided at the end of the power cord 400.

[0102] refer to Figures 3 to 5 As shown, in some embodiments of the utility model, the stator core 100 is provided with a plurality of core slots 101 arranged along the circumferential direction, and the side walls of the core slots 101 are affixed with insulating sheets 900. The stator assembly 10 also includes a first insulating frame 600 and a second insulating frame 601. The first insulating frame 600 and the second insulating frame 601 are respectively arranged at two axial ends of the stator core 100. One of the first insulating frame 600 and the second insulating frame 601 is provided with a slot 602, and the other is provided with a step 603. One end of the insulating sheet 900 is inserted into the slot 602, and the other end abuts against the step 603.

[0103] For example, the stator core 100 may include a yoke and a plurality of teeth. The plurality of teeth may be provided on the outer peripheral wall of the yoke and arranged at intervals along the circumference of the yoke. A core slot 101 may be formed between two adjacent teeth. The insulating sheet 900 may be provided as insulating slot paper or made of other suitable electrical insulating materials. The first insulating frame 600 may be provided at one end of the stator core 100 close to the end cover 202, and the second insulating frame 601 may be provided at one end of the stator core 100 away from the end cover 202. The winding 300 may be wound between the first insulating frame 600 and the second insulating frame 601 and pass through the core slot 101. The first insulating frame 600, the second insulating frame 601 and the insulating sheet 900 all play an insulating role to avoid the winding 300 directly contacting the stator core 100 and causing the risk of short circuit and leakage, thereby improving safety. The first insulating frame 600 may be provided with a plurality of slots 602 , and the second insulating frame 601 may be provided with a plurality of steps 603 . Each core slot 101 has a slot 602 and a step 603 corresponding to each other.

[0104] The slot 602 can perform radial positioning and axial positioning of one end of the insulating sheet 900, and the step 603 can perform axial positioning of the other end of the insulating sheet 900, thereby realizing the positioning of the insulating sheet 900. When the insulating sheet 900 needs to be installed, one end of the insulating sheet 900 is inserted into the slot 602, and the other end abuts against the side of the step 603 close to the slot 602. Compared with both the first insulating frame 600 and the second insulating frame 601 being provided with the slot 602, it is more convenient to install and remove the insulating sheet 900.

[0105] It should be noted that the second insulating frame 601 may be provided with a slot 602 , and the first insulating frame 600 may be provided with a step 603 .

[0106] The electrical device according to the second embodiment of the utility model includes the motor according to the first embodiment.

[0107] By adopting the motor of the first aspect of the utility model, there is no need to thread or pull the power cord 400 when it is unthreaded, which not only makes the operation more convenient, but also prevents the power cord 400 from having poor contact or even breakage at the connection position with the winding 300. At the same time, the power cord 400 is accommodated in the first wire accommodating groove 501 to be organized, and is fixed by the first wire fixing portion 502, which can further avoid the power cord 400 from having poor contact or even breakage at the connection position with the winding 300, thereby reducing safety hazards and improving manufacturability.

[0108] It should be noted that, since the electrical equipment can adopt all the technical solutions of the motor of the first aspect embodiment above, it at least has all the beneficial effects brought by the technical solutions of the first aspect embodiment above, and these additional beneficial effects will not be repeated here.

[0109] It is understandable that other structures and operations of the electrical equipment according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0110] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A motor, characterized in that: include: stator assembly and rotor assembly; The stator assembly comprises: stator core; The bearing seat comprises a mounting portion and an end cover, wherein the end cover is connected to the mounting portion, the stator core is mounted on the mounting portion, the end cover is located on one side of the axial direction of the stator core, and the outer peripheral wall of the end cover is provided with a wire outlet groove with an outer opening; A winding, wound around the stator core; A power line connected to the winding, the power line being adapted to be discharged from the outlet slot; A wire fixing frame connected to one end of the stator core close to the end cover, the wire fixing frame is provided with a first wire accommodating groove and a first wire fixing portion, the power wire is accommodated in the first wire accommodating groove, and the first wire fixing portion is used to fix the power wire in the first wire accommodating groove; The rotor assembly comprises: A bearing, mounted on the bearing seat; A rotating shaft mounted on the bearing; The rotor is sleeved on the outer side of the stator core and connected to an end of the rotating shaft away from the end cover.

2. The motor according to claim 1, characterized in that The first wire fixing portion is arranged on the bottom surface of the first wire accommodating groove and arches in a direction away from the bottom surface of the first wire accommodating groove to form a mounting hole; The stator assembly further includes a binding belt, which can be passed through the mounting hole and fix the power line to the first wire fixing portion.

3. The motor according to claim 2, characterized in that Two side walls of the first wire accommodating groove are provided with clearance grooves, and the two clearance grooves are respectively located on both sides of the first wire fixing part, and the binding belts are allowed to pass through the clearance grooves.

4. The motor according to any one of claims 1 to 3, characterized in that The winding includes a lead wire connected to the power line, and the lead wire is accommodated in the first wire accommodating groove.

5. The motor according to claim 4, characterized in that The wire fixing frame is provided with a first wire groove connected to the first wire accommodating groove, and the lead-out wire is passed through the first wire groove and received in the first wire accommodating groove.

6. The motor according to claim 4, characterized in that A protective sleeve is provided at the connection position between the lead-out wire and the power line; and / or, A protective sleeve is provided at the connection position between the lead wire and the winding.

7. The electric machine according to any one of claims 1 to 3, characterized in that The winding is connected with a neutral line, the line fixing frame is provided with a second line accommodating groove and a second line fixing portion, the neutral line is accommodated in the second line accommodating groove, and the second line fixing portion is used to fix the neutral line in the second line accommodating groove.

8. The motor according to claim 7, characterized in that The wire fixing frame is provided with a second wire groove connected to the second wire containing groove, and the neutral wire is passed through the second wire groove and received in the second wire groove.

9. The electric machine according to any one of claims 1 to 3, characterized in that The stator assembly further comprises: A first insulating frame is provided at one end of the stator core close to the end cover, and the wire fixing frame is buckled with the first insulating frame; A second insulating frame is provided at an end of the stator core away from the end cover; The wire fixing frame is provided with a circumferential limiting portion, and the circumferential limiting portion abuts against the first insulating frame to limit the rotation of the wire fixing frame around the axis of the stator core.

10. The electric machine according to any one of claims 1 to 3, characterized in that The stator assembly further comprises: The wire fixing sleeve is detachably arranged in the wire outlet groove, and the power line is passed through the wire fixing sleeve.

11. The motor according to claim 10, characterized in that One of the side wall of the wire outlet slot and the wire fixing sleeve is provided with a clamping portion, and the other is provided with a clamping slot. The clamping portion is clamped in the clamping slot, and the wire fixing sleeve can move in a direction away from the axis of the stator core until the clamping portion is separated from the clamping slot.

12. The motor according to claim 11, characterized in that The stator assembly further comprises: A locking piece is detachably arranged on the end cover, and the locking piece abuts against a side of the wire fixing sleeve that is away from the axis of the stator core.

13. An electrical device, characterized in that: Comprising the electric machine as claimed in any one of claims 1 to 12.

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