WO2022227387A1 - 电机及电器设备 - Google Patents

电机及电器设备 Download PDF

Info

Publication number
WO2022227387A1
WO2022227387A1 PCT/CN2021/120333 CN2021120333W WO2022227387A1 WO 2022227387 A1 WO2022227387 A1 WO 2022227387A1 CN 2021120333 W CN2021120333 W CN 2021120333W WO 2022227387 A1 WO2022227387 A1 WO 2022227387A1
Authority
WO
WIPO (PCT)
Prior art keywords
iron core
end cover
motor according
rotor
heat dissipation
Prior art date
Application number
PCT/CN2021/120333
Other languages
English (en)
French (fr)
Inventor
周海东
甘峰
周晟
钟义旭
Original Assignee
广东威灵电机制造有限公司
威灵（芜湖）电机制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202110455077.8A external-priority patent/CN113054783A/zh
Priority claimed from CN202120875860.5U external-priority patent/CN214543890U/zh
Application filed by 广东威灵电机制造有限公司, 威灵（芜湖）电机制造有限公司 filed Critical 广东威灵电机制造有限公司
Priority to JP2023553327A priority Critical patent/JP2024508153A/ja
Publication of WO2022227387A1 publication Critical patent/WO2022227387A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium

Definitions

  • the present invention relates to the technical field of motors, in particular to a motor and electrical equipment.
  • the existing motor is generally installed on the mounting bracket of the product, such as the motor for central electrical equipment.
  • the motor is connected to the mounting bracket through the mounting seat.
  • multiple mounting seats are usually used to connect to the mounting bracket.
  • this type of motor generates a large amount of heat, and the design of the mounting seat is unreasonable, which easily blocks the flow of air around the motor, so that the heat on the surface of the motor cannot be dissipated in time, resulting in an increase in the temperature of the motor and a reduction in the service life of the motor.
  • the present invention aims to at least partially solve one of the technical problems existing in the prior art. Therefore, the present invention proposes a motor, which can help to improve the heat dissipation efficiency of the motor, and has a more practical and reliable structure.
  • the present invention also provides electrical equipment including the above-mentioned motor.
  • stator assembly the stator assembly is arranged in the casing
  • the end cover is connected with the housing to form a cavity for accommodating the rotor assembly, and the rotor assembly is rotatably arranged in the cavity;
  • the outer periphery of the end cover is provided with a plurality of mounting seats protruding outward, the mounting seats are connected with the end cover, the mounting seats are provided with mounting holes, and each mounting seat is connected to the end cover.
  • the end caps are hollowed out to form through holes, and the outer side of the casing is provided with a plurality of heat dissipation ribs at intervals along the circumferential direction of the casing.
  • the structural strength of the mounting seat can be ensured to meet the installation standards and use requirements, and each mounting seat can be installed. Hollow out between the end cap and the end cover to form a through hole that can be ventilated, so that the airflow around the motor can pass through the through hole when flowing.
  • the hollow structure can not only reduce the amount of structural materials, but also reduce the wind resistance to airflow, which is beneficial Improve the wind field around the motor and increase the air volume blowing to the heat dissipation ribs, so as to quickly take away the heat of the heat dissipation ribs, so that the heat on the surface of the motor can be dissipated in time, the heat dissipation effect is better, and the structure is more reasonable and reliable.
  • the through holes are arranged along the axial direction of the casing, and on a projection plane perpendicular to the axial direction of the casing, at least part of the projection of the heat dissipation ribs is located at the axial direction of the through holes. within the projection area.
  • the cross-sectional width of the heat dissipation rib gradually decreases in the direction away from the casing, and the outer side surface of the heat dissipation rib away from the casing is a circular arc surface.
  • the cross section of the heat dissipation ribs has a maximum width L2, and the minimum distance L1 and the maximum width L2 satisfy L1 ⁇ 2L2.
  • an end plate is provided at an end of the housing away from the end cover in the axial direction, and one end of the heat dissipation rib is disposed along a radial direction of the end plate toward the center of the end plate.
  • the stator assembly includes a stator iron core, and the outer side of the stator iron core is injection-molded to form the outer shell and the heat dissipation rib.
  • the mounting seat is provided with at least two connecting ribs connected to the end cover, and the through hole is formed between two adjacent connecting ribs on each mounting seat.
  • the included angle ⁇ between any two of the connecting ribs on each of the mounting bases, and the included angle ⁇ satisfies 0° ⁇ 45°.
  • one end of the connecting rib along the axial direction of the end cap is provided with a first surface, and the other end is provided with a second surface, and the first surface and the second surface are respectively formed by at least one section. of curved surfaces.
  • the cross-sectional area of the connecting rib gradually decreases from the two ends to the middle.
  • the mounting seat is extended in a direction away from the end cover along the radial direction of the end cover, and the connecting rib on each mounting seat is connected to the corresponding mounting seat Tilt setting.
  • one end of the end cover is provided with a first side surface along the axial direction of the end cover, and the other end is provided with a second side surface, the first side surface is connected with the housing, and the second side surface is The side is provided with a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is distributed along the circumferential direction of the end cover, the second reinforcing rib is distributed along the radial direction of the end cover, and the first reinforcing rib is spaced along the radial direction of the end cover.
  • a reinforcing rib is arranged crosswise with the second reinforcing rib.
  • the rotor assembly includes:
  • a rotor iron core the rotor iron core includes an inner iron core and an outer iron core, the inner iron core is provided with a rotating shaft, and the outer iron core includes a plurality of outer iron core units spaced around the inner iron core.
  • a accommodating groove is formed between the adjacent outer iron core units;
  • outer iron core and the inner iron core are spaced apart and filled with an injection molding body, and the outer iron core and the inner iron core are connected by the injection molding body.
  • the outer iron core unit includes a plurality of sector-shaped sheets stacked along the axial direction of the rotor iron core, and the sector-shaped sheets are provided with an inner side toward the inner iron core for positioning the permanent The first protrusion of the magnet.
  • the inner side of the fan-shaped sheet is further provided with a second protrusion, the second protrusion extends toward the direction of the inner iron core, and the second protrusion includes a first extension section and A second extension section, the first extension section extends along the circumferential direction of the rotor core, and the second extension section extends along the circumferential direction of the rotor core and in a direction away from the first extension section.
  • the outer side of the sector piece away from the inner iron core has a circular arc edge, the circular arc edge is provided with at least three sections, and the number of the circular arc edge is an odd number.
  • the inner iron core includes a plurality of ring pieces stacked along the axial direction of the rotor iron core, and third protrusions are provided on the outer side of the ring pieces along the circumferential direction of the rotor iron core
  • the third protrusion corresponds to the permanent magnet and is spaced apart, and the injection molded body is filled between the third protrusion and the permanent magnet.
  • both ends of the permanent magnet respectively protrude from the end surface of the outer iron core, and the protruding height H1 is the same as that of the outer iron core.
  • the ratio of the height H2 satisfies 0.02 ⁇ H1/H2 ⁇ 0.3.
  • each of the outer iron core units is provided with a first through slot, and the first through slot penetrates the corresponding outer iron core unit along the axial direction of the rotor iron core, so The first through groove is filled with the second injection molded body.
  • each of the outer iron core units is provided with a second through slot, and the second through slot penetrates the corresponding outer iron core unit along the axial direction of the rotor iron core, so as to for positioning the corresponding outer core unit.
  • the electrical equipment according to the embodiment of the second aspect of the present invention includes the motor described in the embodiment of the first aspect.
  • FIG. 1 is a schematic diagram of an exploded structure of a motor according to an embodiment of the present invention.
  • FIG. 2 is a partial cross-sectional structural schematic diagram of a motor according to an embodiment of the present invention.
  • FIG. 3 is a schematic front view of a motor according to an embodiment of the present invention.
  • FIG. 4 is a schematic view of a rear structure of a motor according to an embodiment of the present invention.
  • FIG. 5 is a schematic three-dimensional structural diagram of a stator assembly according to an embodiment of the present invention.
  • FIG. 6 is a schematic three-dimensional structural diagram of a stator assembly from another angle according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the structure of the upper end surface of the end cap according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the lower end surface of the end cap according to an embodiment of the present invention.
  • Fig. 9 is the enlarged structure schematic diagram of A place in Fig. 2;
  • Fig. 10 is an enlarged schematic view of the structure at B in Fig. 4;
  • FIG. 11 is a schematic front view of the rotor core according to an embodiment of the present invention.
  • FIG. 12 is a schematic side view of a rotor core according to an embodiment of the present invention.
  • Figure 13 is an enlarged schematic view of the structure at C in Figure 11;
  • Figure 14 is an enlarged schematic view of the structure at D in Figure 11;
  • FIG. 15 is a schematic structural diagram of a rotor assembly according to an embodiment of the present invention.
  • Stator assembly 100 stator core 110, plastic casing 120, cooling ribs 121, root 1211, end 1212, shaft hole 122, second bearing chamber 123, lugs 124, waterproof cover 125;
  • Rotor assembly 200 rotor core 210, outer core 211, first through slot 2111, second through slot 2112, outer core unit 212, sector 2121, third extension 2122, fourth extension 2123, first Extension 2124, second extension 2125, first arc edge 2126, second arc edge 2127, third arc edge 2128, inner iron core 213, third protrusion 2131, magnetic tile 214, second injection molded body 215, shaft 220;
  • End cover 300 mounting seat 310, first mounting hole 311, positioning pin 312, connecting rib 320, through hole 321, first surface 322, second surface 323, mounting cavity 330, first bearing chamber 331, wire outlet hole 332, Grounding hole 333, flange 340, second mounting hole 341, first reinforcing rib 350, second reinforcing rib 360;
  • a motor 1000 according to an embodiment of the present invention is described with reference to FIGS. 1 to 15 , and the motor 1000 is suitable for electrical equipment.
  • the motor 1000 will be described below with a specific example.
  • the motor 1000 provided by the embodiment of the present invention includes a stator assembly 100, a rotor assembly 200 and an end cover 300, wherein the rotor assembly 200 includes a rotor iron core 210 and a rotating shaft 220, and the rotating shaft 220 and the rotor iron core 210 is connected;
  • the stator assembly 100 includes a stator iron core 110, the outer side of the stator iron core 110 is provided with a casing, the casing and the end cover 300 are connected to form a casing of the motor 1000, and a receiving cavity is formed in the casing, and the rotating shaft 220 and the rotor iron core 210 can be connected. It is rotatably arranged in the accommodating cavity, and one end of the rotating shaft 220 extends through the plastic casing 120 to the outside of the casing to form a driving shaft.
  • the stator iron core 110 is in the shape of a circular ring, and a first injection molded body is formed by injection molding on the outer side of the stator iron core 110 , and the first injection molded body covers a part of the stator iron core 110 , so that the first injection molded body is formed.
  • the injection molded body forms a casing on the stator core 110 , and the casing is a plastic-encapsulated casing 120 .
  • a plurality of heat dissipation ribs 121 are disposed on the outer peripheral wall of the plastic casing 120 .
  • the heat generated inside the motor 1000 can be transferred to the heat dissipation ribs 121 through the plastic casing 120 , and the heat dissipation ribs 121 are beneficial to increase the surface area of the plastic casing 120 and improve the heat dissipation effect.
  • a mounting seat 310 is provided on the outer side of the end cover 300, and the motor 1000 is integrally connected to the mounting bracket (not shown in the drawings) on the electrical equipment through the mounting seat 310, so that the motor 1000 Can be fixed on the mounting bracket.
  • four mounting seats 310 are disposed on the outer side of the end cover 300 , and the four mounting seats 310 are symmetrically distributed at the outer edge positions of the end cover 300 .
  • the mounting seat 310 of the conventional motor 1000 is directly connected to the end cover 300, or is connected to the end cover 300 through a connecting structure such as a connecting plate, since the mounting seat 310 or the connecting structure will have a certain blocking effect on the axial airflow, so that the The wind field around the motor 1000 will be affected, reducing the amount of air blowing to the outer surface of the fan.
  • the airflow flows along the axial direction of the rotating shaft 220 of the motor 1000, and the plurality of mounting seats 310 protruding from the outside of the motor 1000 will block the flow direction of the airflow, reduce the airflow passing through the surface of the motor 1000, and not It is beneficial to the heat dissipation of the surface of the motor 1000, resulting in an increase in the temperature of the motor 1000.
  • each mounting seat 310 and the end cover 300 are hollowed out, so that a through hole 321 is formed between the mounting seat 310 and the end cover 300, and the through hole 321 can be connected with the end cover 300.
  • At least part of the heat dissipation ribs 121 corresponds to, on the projection plane perpendicular to the axial direction of the plastic casing 120 , the projection of at least part of the heat dissipation ribs 121 is located in the projection area of the through hole 321 , that is, in the axial direction of the plastic casing 120 .
  • the airflow around the motor 1000 can pass through the through hole 321 in the axial direction, and after passing through the through hole 321, the airflow can be directly blown to the heat dissipation rib 121, thereby reducing the wind resistance of the axial airflow and improving the air flow to the surface of the plastic casing 120.
  • the air volume of the heat dissipation rib 121 It can be understood that the airflow can also pass through the heat dissipation ribs 121 and then pass through the through holes 321 to reduce wind resistance.
  • the mounting base 310 can be connected to the end cover 300 through a connecting plate, the connecting plate is provided with a through hole 321, and the through hole 321 penetrates the connecting plate in the axial direction, so that the airflow can pass through the connecting plate through the through hole 321, effectively reducing the connecting plate
  • the wind resistance can improve the wind field around the motor 1000.
  • each mounting seat 310 is provided with two connecting ribs 320 , and the mounting seat 310 is connected to the end cover 300 through the connecting ribs 320 .
  • One end of each connecting rib 320 is connected with the mounting seat 310, and the other end is connected with the end cover 300.
  • the two connecting ribs 320 on each mounting seat 310 are separated by a certain distance, so that the mounting seat 310 is connected by two
  • the ribs 320 are fixedly connected with the mounting seat 310, so that the mounting seat 310 is stably supported.
  • the two connecting ribs 320 on each mounting seat 310 are hollowed out, so that a through hole 321 is formed between the mounting seat 310 and the end cover 300, and the through hole 321 penetrates along the axial direction of the end cover 300, so that The airflow can pass through the connection position between the mounting seat 310 and the end cap 300 along the through hole 321 .
  • the end cover 300 is connected to the bottom end of the plastic casing 120 , and the through hole 321 is formed between the mounting seat 310 and the end cover 300 , so that the through hole 321 can correspond to a part of the heat dissipation ribs 121 .
  • the mounting base 310 and the end cover 300 are connected by connecting ribs 320 .
  • the hollow arrangement ensures that the connecting rib 320 can stably support the end cover 300, reduces the impact of the connecting rib 320 on the airflow around the motor 1000, can effectively reduce wind resistance, and is conducive to improving the wind field around the motor 1000, the airflow along the axis of the motor 1000
  • the heat dissipation rib 121 can pass through the through hole 321 and can be blown toward the surface of the plastic casing 120 when flowing in the direction of flow, so as to quickly take away the heat of the heat dissipation rib 121 , thereby improving the heat dissipation efficiency of the motor 1000 .
  • the through hole 321 is formed by the connecting rib 320, the end cover 300 and the mounting seat 310, and the area surrounded by the projection of the connecting rib 320, the end cover 300 and the mounting seat 310 on the projection plane can be understood as
  • the projection area of the through hole 321, the projection of the heat dissipation rib 121 on the projection surface is located in the projection area.
  • the end surface of part of the heat dissipation ribs 121 located at the bottom end of the plastic casing 120 can face the through hole 321 , and the bottom end of the plastic casing 120 is the end connected to the end cover 300 .
  • the airflow is blown toward the heat dissipation ribs 121 through the through holes 321 , and can pass through the outer surface of the plastic casing 120 along the gaps between the heat dissipation ribs 121 , greatly increasing the air volume passing through the outer surface of the motor 1000 , and the heat dissipation effect is remarkable.
  • the number of the through holes 321 is set according to the installation requirements of the mounting seat 310 . The greater the number of through holes 321 is, the more heat dissipation ribs 121 corresponding to the through holes 321 are. Under the condition that the motor 1000 has sufficient installation strength, the effective Improve the wind field around the motor 1000.
  • connecting ribs 320 are used for connection between the end cover 300 and the mounting seat 310, and the hollow structure defined between the connecting ribs 320 is beneficial to reduce the material consumption of the connecting structure, reduce the manufacturing cost of the end cover 300 of the motor 1000, and also can reduce the cost of the motor 1000.
  • the peripheral airflow of 1000 plays a role in giving way to meet the assembly and heat dissipation requirements of the motor 1000, and the structure is practical and reliable.
  • each mounting seat 310 can be provided with three or more connecting ribs 320, and adjacent connecting ribs 320 Both are hollow structures.
  • connecting ribs 320 the structural strength between the mounting seat 310 and the end cover 300 can be effectively improved, ensuring that the structural strength meets the installation standards and usage requirements, and the overall support of the motor 1000 is more reliable.
  • the number of the mounting bases 310 is not limited to four, but three or more than five can be provided, and details are not repeated here.
  • the heat dissipation ribs 121 and the plastic casing 120 are integrally injection-molded, the plastic casing 120 is substantially cylindrical, the heat dissipation ribs 121 protrude from the outer surface of the plastic casing 120 , the plastic casing 120 and the heat dissipation
  • the ribs 121 are all made of plastic.
  • the heat dissipation ribs 121 include a root portion 1211 and an end portion 1212, the bottom end of the root portion 1211 is connected to the plastic casing 120, the top end of the root portion 1211 is the end portion 1212, and the cross-sectional shape of the root portion 1211 is roughly trapezoid.
  • the cross-sectional shape of the end portion 1212 is roughly arc-shaped, that is, the cross-section of the heat dissipation rib 121 adopts a combination of a trapezoidal cross-section and an arc-shaped cross-section.
  • the width of the cross section of the root portion 1211 gradually decreases in the direction away from the plastic casing 120, and transitions through the arc surface at the end portion 1212, that is, the width of the heat dissipation rib 121 gradually narrows from the bottom end to the top end.
  • the heat dissipation capability of the heat dissipation rib 121 can be effectively improved under the condition of the same amount of material.
  • the cross-sectional width of the root portion 1211 of the heat dissipation rib 121 is larger than the cross-sectional width of the end portion 1212 , and the cross-sectional width of the heat dissipation rib 121 is set according to the actual heat dissipation requirements, and no limited.
  • the cross-section of the root portion 1211 has a maximum width L2. As shown in FIG. 10 , the maximum width L2 is understood as the cross-sectional width of the connection between the root portion 1211 and the plastic casing 120 , and the distance between the roots 1211 of adjacent heat dissipation ribs 121 .
  • the minimum distance L1 is the minimum distance L1
  • the minimum distance L1 and the maximum width L2 satisfy L1 ⁇ 2L2, that is, the distance between the roots 1211 of adjacent cooling ribs 121 is greater than twice the cross-sectional width of the roots 1211 to ensure that the cooling ribs 121 are sufficiently large.
  • the spacing is more efficient for heat dissipation.
  • one end of the plastic casing 120 is connected to the end cover 300 , the other end is an end plate, and the end plate is provided with a shaft hole 122 corresponding to the rotating shaft 220 .
  • the heat dissipation rib 121 extends to the surface of the end plate, and extends inward along the radial direction of the plastic casing 120 on the surface of the end plate, so that the heat dissipation ribs 121 cover the end plate at the same time, which is beneficial to further improve the heat dissipation performance of the plastic casing 120 .
  • each mounting seat 310 is connected to the end cover 300 through two connecting ribs 320 , and there is a certain distance between the two connecting ribs 320 .
  • included angle ⁇ can be understood as the included angle between the two connecting ribs 320 on the same plane, and the included angle ⁇ satisfies 0° ⁇ 45°, which can make the stress of the connecting ribs 320 more reasonable, and has Sufficient support strength to achieve the best cost effect.
  • the included angle ⁇ between the two connecting ribs 320 may be 0°, that is, the two connecting ribs 320 are arranged parallel to each other; for another example, the included angle ⁇ between the two connecting ribs 320 may also be 20°, 30° , 45°, etc.
  • the mounting base 310 can be provided with more than three connecting ribs 320, and the included angles ⁇ between adjacent connecting ribs 320 all satisfy 0° ⁇ 45°.
  • the mounting base 310 can be provided with more than three connecting ribs 320, and the included angles ⁇ between adjacent connecting ribs 320 all satisfy 0° ⁇ 45°.
  • three connecting ribs 320 as an example, two connecting ribs 320 are arranged in parallel, the third connecting rib 320 is arranged between the two parallel connecting ribs 320, and the third connecting rib 320 is respectively connected with the two parallel connecting ribs 320.
  • the connecting ribs 320 intersect, and the included angle ⁇ between the adjacent connecting ribs 320 is 45°, and details are not repeated here.
  • the connecting rib 320 is in the shape of a strip as a whole, and presents a certain radian change on the surface of the connecting rib 320 along the axial direction of the end cover 300 .
  • the side of the connecting rib 320 facing the direction of the plastic casing 120 is the first surface 322
  • the side facing away from the first surface 322 is the second surface 323 .
  • the first surface 322 and the second surface 323 are both arc surfaces, wherein the first surface 322 can be understood as The upper surface and the second surface 323 can be understood as the lower surface.
  • the first surface 322 and the second surface 323 are respectively composed of a segment of arc-shaped surfaces.
  • the contour line of the first surface 322 and the second surface 323 is an arc-shaped line, which connects the upper surface of the rib 320.
  • the curved surface is used for the lower surface and the lower surface, which is beneficial to further reduce the wind resistance.
  • the upper surface and the lower surface of the connecting rib 320 are not limited to the structures shown in the embodiments, and may also be composed of multiple arc surfaces, which can satisfy the structural topology optimization, can make full use of materials, achieve the effect of design optimization, and make the connection
  • the force of the ribs 320 is more reasonable and the support strength is improved.
  • the upper surface and the lower surface are composed of three arc-shaped surfaces respectively, that is, the contour lines of the upper surface and the lower surface respectively have three arc-shaped lines; It consists of two arc surfaces.
  • each connecting rib 320 varies non-uniformly along the axial direction of the connecting rib 320.
  • the connecting rib 320 has a shape with a thin middle and thick ends. The cross-sectional area of the rib 320 gradually decreases from the two ends to the middle.
  • the cross-sectional area of the two ends of the connecting rib 320 is relatively large, while the cross-sectional area of the middle part of the connecting rib 320 is relatively small, which can make the connection between the connecting rib 320 and the end cover 300 and the mounting seat 310 more stable and reliable, that is, the connection.
  • Both ends of the rib 320 are reinforced, so that the force of the connecting rib 320 is optimized, and the supporting strength is higher; and the middle part of the connecting rib 320 is thinner than the two ends, which is beneficial to further reduce the wind resistance of the connecting rib 320, and the structure is more Reasonable.
  • the height of the cross-section of the connecting rib 320 is set not less than the width of the cross-section, and the height of the cross-section of the connecting rib 320 is the height of the connecting rib 320 along the axial direction of the end cover 300 .
  • the height of the cross-section of the connecting rib 320 as shown in FIG. 9 is H3
  • the width of the cross-section of the connecting rib 320 as shown in FIG. 10 is H4, and H3 and H4 satisfy H3 ⁇ H4.
  • the mounting seat 310 is plate-shaped, and the axis of the mounting seat 310 is perpendicular to the axis of the end cover 300 .
  • the specific size of the mounting seat 310 is designed according to the installation requirements, which is not limited here.
  • the connecting ribs 320 on each mounting seat 310 are connected to the mounting seat 310 obliquely.
  • FIG. 2 is a side view of the motor 1000 .
  • the surface has an arc surface, and the connecting ribs 320 on the adjacent mounting bases 310 cooperate to form a horn shape.
  • the side of the end cover 300 connected to the plastic casing 120 is the first side, and the other side facing away from the first side is the second side.
  • the first side can be understood as the end cover 300
  • the second side can be understood as the lower end surface of the end cover 300 .
  • the upper end surface of the end cover 300 is provided with an installation cavity 330 , and the stator iron core 110 is matched with the installation cavity 330 , so that the stator iron core 110 is more stable.
  • one end of the connecting rib 320 on each mounting seat 310 is connected to the outer side of the end cover 300 near the port of the mounting cavity 330, and the other end is connected to the mounting seat 310.
  • the mounting seat 310 is arranged close to the lower end surface, so that the connecting rib is 320 extends obliquely from the position close to the first end face to the position of the mounting seat 310, so that when the connecting ribs 320 are evenly distributed, all the connecting ribs 320 cooperate in a horn-like structure to support the motor 1000, and the structural optimization effect is good, making the connection
  • the rib 320 has high support strength, and minimizes the wind resistance of the connecting rib 320 to the airflow.
  • each mounting seat 310 is provided with a first mounting hole 311 , and the mounting seat 310 is connected to the mounting bracket on the electrical device through the first mounting hole 311 .
  • a mounting bracket is provided on the outer unit of the central air conditioner, and connecting parts such as screws are used to pass through the first mounting hole 311 to connect the mounting seat 310 to the mounting bracket, so that the motor 1000 is fixedly installed on the on the central air conditioner.
  • any two mounting bases 310 may be provided with positioning nails 312, and the positioning nails 312 correspond to the positioning holes on the mounting bracket, which facilitates the quick positioning of the mounting base 310 and the mounting bracket.
  • the positioning pins 312 are first matched with the positioning holes on the mounting bracket, and then fixed with screws, which is beneficial to improve the installation efficiency.
  • the end cover 300, the connecting rib 320 and the mounting seat 310 are integrally formed, so that the overall structure of the end cover 300 of the motor 1000 has high stability and reliability.
  • the first mounting hole 311 penetrates the mounting seat 310 along the axial direction of the end cover 300 , and the positioning pins 312 are disposed on the mounting seat 310 toward the side away from the stator assembly 100 .
  • an outwardly extending flange 340 is provided on the outer side of the end cap 300 , and the flange 340 is provided at a position close to the port of the mounting cavity 330 .
  • the flange 340 protrudes from the outer side of the end cover 300 in the radial direction, and the connecting rib 320 is connected to the flange 340.
  • the flange 340 can reinforce the connection between the connecting rib 320 and the end cover 300, so that the connecting rib 320 has a structure More reliable and stronger support.
  • the flange 340 extends along the circumferential direction of the end cover 300 , so that the connecting ribs 320 on the adjacent mounting bases 310 can be connected by the flange 340 to further increase the structural strength.
  • the flange 340 is provided with a second mounting hole 341, and the flange 340 is connected to the lug 124 on the plastic casing 120 through the second mounting hole 341, so that the end cover 300 can be connected to the plastic casing 120, so that the flange 340 not only It can play a reinforcing role, and can also be connected with the plastic casing 120 to simplify the overall structure of the motor 1000 .
  • a first reinforcing rib 350 and a second reinforcing rib 360 are provided on the lower end surface of the end cap 300 , wherein the first reinforcing rib 350 is distributed at intervals along the circumferential direction of the end cap 300 , and the first reinforcing rib 350 is The ribs 350 extend to the edge of the end cover 300 along the radial direction of the end cover 300 ; the second reinforcing ribs 360 are spaced apart along the radial direction of the end cover 300 , and the second reinforcing ribs 360 extend along the circumferential direction of the end cover 300 , so that the first The reinforcing rib 350 and the second reinforcing rib 360 can intersect on the lower end surface. It can be understood that the first reinforcing ribs 350 are radially distributed and interwoven with the second reinforcing ribs 360 extending in the circumferential direction to form a mesh structure, which can effectively reinforce the end cap 300 .
  • the first bearing chamber 331 is provided at the center of the installation cavity 330 , the bearing 400 is installed in the first bearing chamber 331 , and the first bearing chamber 331 is recessed on the bottom surface of the installation cavity 330 .
  • the bottom surface of the first bearing chamber 331 is a closed structure.
  • first bearing chamber 331 is formed concavely toward the lower end surface of the end cover 300, a protrusion is formed on the surface of the lower end surface corresponding to the first bearing chamber 331, so that the first reinforcing rib 350 can be connected with the protrusion, that is, the first The reinforcing ribs 350 are staggeredly connected to the outer side of the first bearing chamber 331 , which further improves the overall structural rigidity of the end cover 300 of the motor 1000 , which is beneficial for the bearing 400 to carry a larger load.
  • a wire outlet hole 332 is provided on the end cover 300, and the wire outlet hole 332 penetrates the end cover 300 in the axial direction, so that the first side and the second side of the end cover 300 communicate with each other, so that the power cable 500 can pass from the motor 1000 to the motor 1000.
  • the outer side of the wire enters the cavity along the wire outlet hole 332 , so that the power wire 500 can be connected to the stator assembly 100 .
  • the end cover 300 is also provided with a grounding hole 333, and the grounding hole 333 is arranged in the installation cavity 330.
  • the grounding hole 333 is connected to the grounding wire through a screw, so that the end cover 300 can realize Grounded to meet the electrification requirements of the motor 1000.
  • the plastic casing 120 is provided with a second bearing chamber 123 , a bearing 400 is installed in the second bearing chamber 123 , one end of the rotating shaft 220 is connected to the bearing 400 in the first bearing chamber 331 , and the other end of the rotating shaft 220 It is connected with the bearing 400 in the second bearing chamber 123, so that the rotating shaft 220 is stably supported.
  • a waterproof cover 125 is provided at the position of the shaft hole 122 , which effectively improves the waterproof performance of the motor 1000 .
  • the rotor iron core 210 includes an inner iron core 213 and an outer iron core 211 , the rotating shaft 220 is connected to the inner iron core 213 , and the outer iron core 211 includes a plurality of outer iron core units 212 , a plurality of outer iron core units 212 are arranged at intervals around the inner iron core 213, adjacent outer iron core units 212 are spaced apart to form accommodation slots, each accommodation slot is provided with a permanent magnet, so that the permanent magnets are placed in the outer iron core 211.
  • the rotor iron core 210 includes ten outer iron core units 212 and one inner iron core 213 , and the number of permanent magnets is also ten.
  • each outer iron core unit 212 is separated from the inner iron core 213 , and the outer iron core unit 212 and the inner iron core 213 are filled with insulating non-magnetic material by injection molding.
  • a second injection molded body 215 is formed, and through the second injection molded body 215, the outer iron core 211, the inner iron core 213 and the permanent magnet can be combined into an integral structure.
  • the permanent magnet is the magnetic tile 214 .
  • the adjacent outer iron core units 212 are all disconnected, and each outer iron core unit 212 is separated from the inner iron core 213, and the second injection molded body 215 makes the outer iron core 211 and the inner iron core Insulation is formed between 213 and between the magnetic tile 214 and the inner iron core 213, thereby improving the insulation between the rotating shaft 220 and the outer iron core 211, effectively reducing the shaft voltage, and greatly reducing the risk of electrical corrosion damage to the bearing 400, which is reliable and reliable. Sex is higher.
  • the second injection body 215 may be made of resin material, which is not specifically limited.
  • each of the outer iron core units 212 includes a plurality of sector-shaped pieces 2121 stacked along the axial direction of the rotor iron core 210 .
  • the side of the fan-shaped sheet 2121 facing the inner iron core 213 is the inner side
  • the side away from the inner iron core 213 is the outer side.
  • the magnetic tile 214 is positioned.
  • the adjacent outer iron core units 212 are all disconnected, the inner sides of the accommodating grooves are all open and correspond to the inner iron core 213 , the magnetic tiles 214 are assembled in the accommodating grooves, and the first protrusions extend toward the direction of the accommodating grooves , the first protrusion can be understood as a protrusion structure formed on the inner side of the fan-shaped sheet 2121 , the inner side of the magnetic tile 214 can be supported by the first protrusion, and the magnetic tile 214 can be positioned when the second injection body 215 is filled. It can reduce the deflection of the magnetic tile 214 in the accommodating groove, and improve the stability and reliability.
  • the inner side of the fan-shaped sheet 2121 is further provided with a second protrusion, and the second protrusion extends toward the direction of the inner iron core 213 .
  • the second protrusion includes a first extension section 2124 and a second extension section 2125.
  • the first extension section 2124 and the second extension section 2125 respectively extend along the circumference of the rotor core 210 and are symmetrically distributed.
  • the second injection molded body 215 is filled between the iron core 213 and the outer iron core 211, and is embedded in the second injection molded body 215 through the first extension section 2124 and the second extension section 2125, which is beneficial to improve the outer iron core unit 212 and the second injection molded body.
  • the bonding force of the body 215 increases the structural strength.
  • the first extension section 2124 and the second extension section 2125 on the second protrusion form a Y-shaped structure
  • the second injection body 215 completely covers the Y-shaped structure
  • the The Y-shaped structure can be completely embedded in the injection body, which makes the connection between the outer iron core 211 and the injection body more tightly and firmly, and ensures that the combination of the outer iron core 211 and the second injection body 215 in the radial and circumferential directions is strengthened, thereby greatly improving the rotor.
  • the overall strength of the assembly 200 makes the rotor assembly 200 more stable when outputting a large torque.
  • the shape formed by the cooperation of the first extension section 2124 and the second extension section 2125 is not limited to the above example, and may also be a T-shape or other shapes.
  • the first protrusion includes a third extension section 2122 and a third extension section 2122, and the third extension section 2122 and the fourth extension section 2123 respectively extend along the circumferential direction of the rotor core 210, so that the third extension section 2122 and the fourth extending section 2123 are positioned corresponding to the adjacent magnetic tiles 214 respectively.
  • Both the third extension section 2122 and the fourth extension section 2123 are arranged on the inner side of the sector sheet 2121 and are symmetrically distributed along the radial direction of the rotor core 210.
  • the third extension section 2122 shown in FIGS. 11 and 13 extends in the counterclockwise direction.
  • the four extension sections 2123 extend in a clockwise direction.
  • an accommodating groove is formed between two adjacent sector-shaped pieces 2121, wherein the third extension section 2122 on one sector-shaped piece 2121 and the fourth extension section 2123 on the other sector-shaped piece 2121 cooperate with the magnetic field of the accommodating slot.
  • the tile 214 is positioned, and the structure is stable and reliable.
  • the outer side of the sector piece 2121 is an arc edge
  • the arc edge is composed of three arc edges
  • the three arc edges are sequentially connected along the circumferential direction of the rotor core 210
  • An outer contour line is formed, and the three arc-shaped sides shown in FIG. 14 are respectively a first arc-shaped side 2126 , a second arc-shaped side 2127 and a third arc-shaped side 2128 .
  • the configuration of the above-mentioned outer contour line shape can reduce the amount of flow from the rotor iron core 210 to the stator pole shoe and then to the magnetic circuit of the rotor iron core 210, which can reduce the magnetic circuit of the rotor iron core 210 at the alternating magnetic poles.
  • the magnetic leakage phenomenon increases the utilization rate of the magnetic tile 214 and is beneficial to improve the performance of the motor 1000 .
  • the arc edge of the arc edge is not limited to the first arc edge 2126, the second arc edge 2127 and the third arc edge 2128 shown in the embodiment, and the arc edge can also be more than three sections, And the number of arc sides is an odd number, for example, five segments, seven segments, etc., and details are not repeated here.
  • the protrusion height H1 is understood as the distance between the top of the magnetic tile 214 and the top of the outer iron core 211, and the height of the outer iron core 211 is H2, H1 and H2 The ratio satisfies 0.02 ⁇ H1/H2 ⁇ 0.3.
  • the problem of high back EMF can be solved, which is beneficial to improve the performance of the motor 1000.
  • the height of the magnetic tile 214 protruding from the outer iron core 211 is too large, the effect on performance is not obvious, that is, the investment cost is not proportional to the performance improvement. Therefore, in this embodiment, the height of the magnetic tile 214 is limited. Satisfying the above proportional relationship makes the design of the rotor core 210 more reasonable.
  • the second injection molded body 215 covers both ends of the magnetic tile 214 , as shown in FIG. 15 .
  • the magnetic tile 214 adopts a cuboid structure, and the magnetic tile 214 may be a sintered ferrite magnet or a neodymium magnet, etc., and the shape may also be a trapezoid or the like.
  • the inner iron core 213 includes a plurality of ring pieces stacked along the axial direction of the rotor iron core 210 , and a third protrusion 2131 is provided on the outer side of each ring piece in the circumferential direction , the third protrusion 2131 can be understood as a raised structure on the outer periphery of the ring sheet, the ring sheet is roughly annular, the top of the third protrusion 2131 is an arc edge, and the third protrusion 2131 is connected to the ring sheet There is an arc transition in between.
  • the number of the third protrusions 2131 is the same as the number of the magnetic tiles 214, so that the third protrusions 2131 and the magnetic tiles 214 are in one-to-one correspondence, and the second injection molded body passes between the third protrusions 2131 and the permanent magnet. 215 are separated to form insulation, and the third protrusion 2131 is embedded in the second injection body 215.
  • the third protrusion 2131 can increase the bonding force between the inner iron core 213 and the second injection body 215, and cooperate with the second protrusion. In this way, the bonding force of the inner iron core 213 , the outer iron core 211 and the second injection molded body 215 can be greatly improved, thereby effectively improving the overall strength of the rotor iron core 210 .
  • each outer iron core unit 212 is provided with a first through slot 2111 , and the first through slot 2111 penetrates through the outer iron core unit 212 along the axial direction of the rotor iron core 210 , that is, The first through grooves 2111 penetrate through each sector piece 2121 .
  • non-magnetic conductive material is injected into each first through groove 2111, so that the second injection molded body 215 can be filled into each first through groove 2111, and all sectors 2121 on each outer iron core unit 212 can be fixed.
  • the second injection molded body 215 is simultaneously filled between the outer iron core 211 and the inner iron core 213 and in each of the first through grooves 2111 on the outer iron core 211 , thereby further improving the overall strength of the rotor iron core 210 .
  • the second injection molded body 215 can cover the magnetic tile 214 and part of the rotor iron core 210 at both ends of the rotor iron core 210 in the axial direction, so that the outer iron core 211 , the inner iron core 213 and the magnetic tile 214 form the rotor assembly 200 , which can reduce the magnetic flux leakage between the outer iron core 211 and the inner iron core 213 on the premise of ensuring the structural strength, and improve the power density of the motor 1000 .
  • the cross-sectional shape of the first through groove 2111 is not limited to a circle, but can also be a polygon.
  • the second injection molded body 215 is filled in the first through groove 2111, and the triangular injection molded body has higher strength, which is beneficial to improve the structural strength of the outer iron core 211, and is more practical and reliable.
  • each outer iron core unit 212 is provided with a second through slot 2112 , the second through slot 2112 penetrates the outer iron core unit 212 along the axial direction of the rotor iron core 210 , and the outer iron core unit 212 passes through the second through slot 2112 to locate.
  • the first positioning pin (not shown in the drawings) on the injection mold is inserted into the shaft mounting hole of the inner iron core 213, and the first positioning pin positions the inner iron core 213 so that each ring The rings can be stacked correspondingly; at the same time, the second positioning pins (not shown in the drawings) are inserted into the second through grooves 2112, so that each segment 2121 can be positioned at the same time, and the positioning is more stable and reliable, and then the outer iron core 211 and the inner iron
  • the gap between the cores 213 and each of the first through grooves 2111 are subjected to an injection molding operation.
  • the first positioning pin and the second positioning pin are pulled out, that is, the integral molding of the rotor core 210 is completed.
  • the embodiment of the present invention also provides electrical equipment (not shown in the drawings), the electrical equipment may be an air conditioner, a refrigerator, etc., and the motor 1000 used in the electrical equipment is the motor 1000 of the above-mentioned embodiment. Since the electrical equipment adopts all the technical solutions of the motor 1000 of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

一种电机和电器设备。电机(1000)包括外壳、转子组件(200)、设于外壳内的定子组件(100)以及端盖(300)，其中端盖(300)与外壳连接形成用于容纳转子组件(200)的腔体，转子组件(200)可转动地设于此腔体内。端盖(300)的外周沿设有向外凸出的多个安装座(310)，这些安装座(310)与端盖(300)连接，并设有安装孔，每个安装座(310)与端盖(300)之间镂空设置形成通孔(321)，外壳的外侧沿外壳的周向间隔设有多条散热筋(121)。

Description

电机及电器设备
相关申请的交叉引用
本申请要求于2021年04月26日提交的申请号为202110455077.8、名称为“电机及电器设备”，以及于2021年04月26日提交的申请号为202120875860.5、名称为“电机及电器设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电机相关技术领域，尤其是涉及一种电机及电器设备。
背景技术
现有的电机一般安装在产品的安装支架上，例如中央电器设备用的电机，电机通过安装座连接在安装支架上，为保证电机能够稳定运行，通常利用多个安装座与安装支架连接。然而，此类型电机发热量较大，安装座设计不合理，容易阻挡电机周围空气的流向，使电机表面热量不能及时散发，导致电机温升高，降低电机的使用寿命。
发明内容
本发明旨在至少部分解决现有技术中存在的技术问题之一。为此，本发明提出一种电机，能够有利于提高电机的散热效率，结构更加实用可靠。
本发明还提供包括上述电机的电器设备。
根据本发明的第一方面实施例的电机，包括：
外壳；
转子组件；
定子组件，所述定子组件设于所述外壳内；
端盖，所述端盖与所述外壳连接形成用于容纳所述转子组件的腔体，所述转子组件可转动地设于所述腔体内；
其中，所述端盖的外周沿设有向外凸出的多个安装座，所述安装座与所述端盖连接，所述安装座设有安装孔，每个所述安装座与所述端盖之间镂空设置形成通孔，所述外壳的外侧沿所述外壳的周向间隔设有多条散热筋。
根据本发明实施例的电机，至少具有如下有益效果：
通过在外壳的外侧沿周向间隔设置多条散热筋，端盖外周沿设置多个与端盖连接的安装座，能够保证安装座的结构强度满足安装标准及使用要求，并将每个安装座与端盖之间进行镂空设置，形成能够通风的通孔，这样电机***的气流流动时能够穿过通孔，镂空的结构既可以减少结构材料用量，又可以减小对气流的风阻，有利于改善电机***的风场，提高吹向散热筋的风量，从而快速带走散热筋的热量，使电机表面的热量能够及时散去，散热效果更佳，结构更加合理可靠。
根据本发明的一些实施例，所述通孔沿所述外壳的轴向设置，在垂直于所述外壳的轴向的投影面上，至少部分的所述散热筋的投影位于所述通孔的投影区域内。
根据本发明的一些实施例，所述散热筋的横截面宽度向远离所述外壳的方向逐渐减小，所述散热筋远离所述外壳的外侧面为圆弧面。
根据本发明的一些实施例，相邻的所述散热筋之间具有最小间距L1，所述散热筋的横截 面具有最大宽度L2，所述最小间距L1与所述最大宽度L2满足L1≥2L2。
根据本发明的一些实施例，所述外壳沿轴向远离所述端盖的一端设有端板，所述散热筋的一端沿所述端板的径向朝向所述端板的中心延伸设置。
根据本发明的一些实施例，所述定子组件包括定子铁芯，所述定子铁芯外侧注塑形成所述外壳和所述散热筋。
根据本发明的一些实施例，所述安装座设置至少两条与所述端盖连接的连接筋，每个所述安装座上相邻的两条所述连接筋之间形成所述通孔。
根据本发明的一些实施例，每个所述安装座上任意的两条所述连接筋之间具有夹角α，所述夹角α满足0°≤α≤45°。
根据本发明的一些实施例，所述连接筋沿所述端盖的轴向一端设有第一表面，另一端设有第二表面，所述第一表面和所述第二表面分别由至少一段的弧形面组成。
根据本发明的一些实施例，所述连接筋的横截面的面积由两端向中间逐渐减小。
根据本发明的一些实施例，所述安装座沿所述端盖的径向向远离所述端盖的方向延伸设置，每个所述安装座上的所述连接筋与相应的所述安装座倾斜设置。
根据本发明的一些实施例，所述端盖沿所述端盖的轴向一端设有第一侧面，另一端设有第二侧面，所述第一侧面与所述外壳连接，所述第二侧面设有第一加强筋和第二加强筋，所述第一加强筋沿所述端盖的周向间隔分布，所述第二加强筋沿所述端盖的径向间隔分布，所述第一加强筋与所述第二加强筋交叉设置。
根据本发明的一些实施例，所述转子组件包括：
转子铁芯，所述转子铁芯包括内铁芯和外铁芯，所述内铁芯设有转轴，所述外铁芯包括围绕所述内铁芯间隔设置的多个外铁芯单元，相邻的所述外铁芯单元之间形成容纳槽；
永磁体，所述永磁体设于所述容纳槽内；
其中，所述外铁芯与所述内铁芯之间间隔设置且填充有注塑体，所述外铁芯与所述内铁芯之间通过所述注塑体连接。
根据本发明的一些实施例，所述外铁芯单元包括沿所述转子铁芯的轴向层叠的多个扇形片，所述扇形片朝向所述内铁芯的内侧设有用于定位所述永磁体的第一凸起。
根据本发明的一些实施例，所述扇形片的内侧还设有第二凸起，所述第二凸起朝向所述内铁芯的方向延伸，所述第二凸起包括第一延伸段和第二延伸段，所述第一延伸段沿所述转子铁芯的周向延伸，所述第二延伸段沿所述转子铁芯的周向且朝向远离所述第一延伸段的方向延伸。
根据本发明的一些实施例，所述扇形片远离所述内铁芯的外侧具有圆弧边，所述圆弧边设置至少有三段，且所述圆弧边的数量为奇数。
根据本发明的一些实施例，所述内铁芯包括沿所述转子铁芯的轴向层叠的多个环圈片，所述环圈片的外侧沿所述转子铁芯的周向设有第三凸起，所述第三凸起与所述永磁体对应且间隔设置，所述第三凸起与所述永磁体之间填充有所述注塑体。
根据本发明的一些实施例，在所述转子铁芯的轴向上，所述永磁体的两端分别凸出于所述外铁芯的端面，且凸出的高度H1与所述外铁芯的高度H2的比例满足0.02≤H1/H2≤0.3。
根据本发明的一些实施例，每个所述外铁芯单元均设有第一通槽，所述第一通槽沿所述转子铁芯的轴向贯穿相应的所述外铁芯单元，所述第一通槽内填充有所述第二注塑体。
根据本发明的一些实施例，每个所述外铁芯单元均设有第二通槽，所述第二通槽沿所述 转子铁芯的轴向贯穿相应的所述外铁芯单元，以用于定位相应的所述外铁芯单元。
根据本发明的第二方面实施例的电器设备，包括上述第一方面实施例所述的电机。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明一实施例的电机的分解结构示意图；
图2是本发明一实施例的电机的局部剖视结构示意图；
图3是本发明一实施例的电机的正面结构示意图；
图4是本发明一实施例的电机的背面结构示意图；
图5是本发明一实施例的定子组件的立体结构示意图；
图6是本发明一实施例的定子组件的另一角度的立体结构示意图；
图7是本发明一实施例的端盖的上端面结构示意图；
图8是本发明一实施例的端盖的下端面结构示意图；
图9是图2中A处的放大结构示意图；
图10是图4中B处的放大结构示意图；
图11是本发明一实施例的转子铁芯的正面结构示意图；
图12是本发明一实施例的转子铁芯的侧面结构示意图；
图13是图11中C处的放大结构示意图；
图14是图11中D处的放大结构示意图；
图15是本发明一实施例的转子组件的结构示意图。
附图标记：
电机1000；
定子组件100，定子铁芯110，塑封外壳120，散热筋121，根部1211，端部1212，轴孔122，第二轴承室123，凸耳124，防水罩125；
转子组件200，转子铁芯210，外铁芯211，第一通槽2111，第二通槽2112，外铁芯单元212，扇形片2121，第三延伸段2122，第四延伸段2123，第一延伸段2124，第二延伸段2125，第一弧形边2126，第二弧形边2127，第三弧形边2128，内铁芯213，第三凸起2131，磁瓦214，第二注塑体215，转轴220；
端盖300，安装座310，第一安装孔311，定位钉312，连接筋320，通孔321，第一表面322，第二表面323，安装腔330，第一轴承室331，出线孔332，接地孔333，凸缘340，第二安装孔341，第一加强筋350，第二加强筋360；
轴承400；
电源线500。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“内”、“外”、“背向”、“轴向”、“径向”、“周 向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本发明的描述中，需要说明的是，除非另有明确的限定，术语“安装”、“连接”等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
参考图1至图15描述本发明实施例的电机1000，该电机1000适用于电器设备。下面以具体示例对电机1000进行说明。
参见图1和2所示，本发明实施例提供的电机1000，包括定子组件100、转子组件200和端盖300，其中，转子组件200包括转子铁芯210和转轴220，转轴220与转子铁芯210连接；定子组件100包括定子铁芯110，定子铁芯110的外侧设置有外壳，外壳与端盖300连接构成电机1000的壳体，壳体内形成有容纳腔，转轴220与转子铁芯210可转动地设置在容纳腔内，转轴220的一端穿过塑封外壳120延伸至壳体外侧，形成驱动轴。
参见图1、5和6所示，定子铁芯110呈圆环形状，通过在定子铁芯110的外侧注塑形成第一注塑体，第一注塑体包覆部分的定子铁芯110，使得第一注塑体在定子铁芯110上形成外壳，该外壳为塑封外壳120。实施例中，在塑封外壳120的外周壁上设置有多条散热筋121，散热筋121沿塑封外壳120的周向间隔分布，且散热筋121沿塑封外壳120的轴向延伸。电机1000内部产生的热量能够通过塑封外壳120传递到散热筋121上，散热筋121有利于增加塑封外壳120的表面积，能够提升散热效果。
参见图1、3和4所示，在端盖300的外侧边设置有安装座310，电机1000整体通过安装座310与电器设备上的安装支架(附图未示出)连接，使电机1000能够固定装配在安装支架上。图4中示出端盖300外侧设置有四个安装座310，四个安装座310对称分布在端盖300的外侧边缘位置。
考虑到传统的电机1000的安装座310直接与端盖300连接，或通过连接板等连接结构与端盖300连接，由于安装座310或连接结构会对轴向的气流产生一定的阻挡作用，使电机1000周围的风场会受到影响，减少吹向风机外表面的风量。例如，电机1000驱动风轮工作时，气流沿电机1000转轴220的轴向流动，而多个安装座310凸出于电机1000的外侧会阻挡气流的流向，减少流经电机1000表面的气流，不利于电机1000表面的散热，导致电机1000温升高。
可以理解的是，参见图3和4所示，每个安装座310与端盖300之间进行镂空设置，使在安装座310与端盖300之间形成有通孔321，通孔321能够与至少部分的散热筋121对应，在垂直于塑封外壳120的轴向的投影面上，至少部分的散热筋121的投影位于通孔321的投影区域内，也就是说，在塑封外壳120的轴向方向上，电机1000***的气流能够沿轴向穿过通孔321，且气流穿过通孔321后能够直接吹向散热筋121，从而降低轴向气流的风阻，提高吹向塑封外壳120表面的散热筋121的风量。可理解到，气流也可以经过散热筋121后再穿过通孔321，起到降低风阻的作用。
例如，安装座310可通过连接板与端盖300连接，连接板上开设有通孔321，通孔321沿轴向贯穿连接板，使气流能够通过通孔321穿过连接板，有效降低连接板的风阻，起到改 善电机1000***风场的作用。
参见图3和4所示，在一些实施例中，每个安装座310上设置有两条连接筋320，安装座310通过连接筋320与端盖300连接。其中，每条连接筋320的一端与安装座310连接，另一端与端盖300连接，每个安装座310上的两条连接筋320之间隔开一定的距离，使安装座310通过两条连接筋320与安装座310固定连接，这样安装座310得到稳定的支撑。
而且，每个安装座310上的两条连接筋320之间进行镂空设置，从而在安装座310与端盖300之间形成有通孔321，通孔321沿端盖300的轴向贯通，使得气流能够沿通孔321穿过安装座310与端盖300之间的连接位置。可以理解的是，端盖300连接在塑封外壳120的底端位置，通孔321形成在安装座310与端盖300之间，使得通孔321能够与一部分的散热筋121对应。
参见图2、3和4所示，本实施例中，安装座310与端盖300之间通过连接筋320相连接，连接筋320为条状结构，且将相邻的连接筋320之间进行镂空设置，这样保证连接筋320能够稳定支撑端盖300的情况下，降低连接筋320对电机1000***气流的影响，能够有效降低风阻，有利于改善电机1000***的风场，气流沿电机1000轴向流动时能够沿通孔321穿过并能够吹向塑封外壳120表面的散热筋121，从而快速带走散热筋121的热量，进而提高电机1000的散热效率。
需要说明的是，通孔321由连接筋320、端盖300和安装座310围设形成，连接筋320、端盖300与安装座310在投影面上的投影所围设形成的区域可理解为通孔321的投影区域，散热筋121在投影面上的投影位于该投影区域内。
参见图4所示，实施例中，部分的散热筋121位于塑封外壳120底端的端面能够朝向通孔321，塑封外壳120的底端为与端盖300连接的一端。气流经过通孔321吹向散热筋121，能够沿散热筋121之间的间隙经过塑封外壳120的外表面，大大增加经过电机1000外表面的风量，散热效果显著。通孔321的数量根据安装座310的安装要求而设定，通孔321的数量越多，通孔321所对应的散热筋121也越多，在保证电机1000具有足够安装强度的情况下，有效改善电机1000***的风场。
此外，端盖300与安装座310之间采用连接筋320进行连接，连接筋320之间限定的镂空结构有利于减少连接结构的材料用量，降低电机1000端盖300的制作成本，又可以对电机1000***气流起到让位作用，满足电机1000的装配和散热要求，结构实用可靠。
需要说明的是，每个安装座310上的连接筋320数量不限于实施例所示的数量，可理解到，每个安装座310可设置三条或以上的连接筋320，相邻的连接筋320之间均为镂空结构，通过增加连接筋320可以有效提高安装座310与端盖300之间的结构强度，保证该结构强度满足安装标准及使用要求，对电机1000整体的支撑更加可靠。此外，安装座310的数量也不限于四个，可以设置三个或五个以上，具体不再赘述。
参见图5和6所示，可以理解的是，散热筋121与塑封外壳120一体注塑成型，塑封外壳120大致呈圆柱形状，散热筋121凸出于塑封外壳120的外表面，塑封外壳120与散热筋121均为塑料材质。其中，在塑封外壳120的径向上，散热筋121包括根部1211和端部1212，根部1211的底端与塑封外壳120连接，根部1211的顶端为端部1212，根部1211的横截面形状大致呈梯形，端部1212的横截面形状大致呈圆弧形，即散热筋121的横截面采用梯形横截面与圆弧形横截面的组合方式。
可理解到，根部1211的横截面的宽度向远离塑封外壳120的的方向逐渐减小，在端部 1212位置通过圆弧面过渡，即散热筋121的宽度由底端向顶端逐渐收窄。相对于平板状的散热片，在相同的材料用量的情况下，能够有效提升散热筋121的散热能力，散热筋121的散热性价比较高，且散热筋121的连接结构更加可靠。
参见图4和10所示，可以理解的是，相邻的散热筋121之间具有一定的间距，在间距过小的情况下，会限制经过相邻的散热筋121之间的风量，进而减少带走的热量，造成散热筋121之间的热量不能得到有效散发，散热效果较低，因此，该间距需要足够大，才能使气流沿相邻散热筋121之间的间隙流畅通过。
在一些实施例中，可理解到，散热筋121的根部1211的横截面宽度相对于端部1212的横截面宽度较大，散热筋121的横截面宽度根据实际散热要求而设定，此处不作限定。实施例中，根部1211的横截面具有最大宽度L2，如图10所示，最大宽度L2理解为根部1211与塑封外壳120连接处的横截面宽度，相邻散热筋121的根部1211之间的距离为最小间距L1，最小间距L1与最大宽度L2满足L1≥2L2，即相邻散热筋121的根部1211之间的间距大于两倍的根部1211的横截面宽度，保证散热筋121之间具有足够大的间距，散热更高效。
参见图6所示，塑封外壳120的一端与端盖300连接，另一端为端板，端板上设置有与转轴220对应的轴孔122。散热筋121延伸至端板的表面，且在端板的表面上沿塑封外壳120的径向向内延伸，使散热筋121同时覆盖在该端板上，有利于进一步提高塑封外壳120的散热性能。
参见图4所示，可以理解的是，端盖300外侧设置有四个安装座310，每个安装座310通过两条连接筋320与端盖300连接，两条连接筋320之间具有一定的夹角α。实施例中，该夹角α可理解为两条连接筋320在同一平面上的夹角，该夹角α满足0°≤α≤45°，这样能够使连接筋320的受力更合理，具有足够大的支撑强度，达到成本最优的效果。例如，两条连接筋320之间的夹角α可以是0°，即两条连接筋320相互平行设置；又如，两条连接筋320之间的夹角α也可以是20°、30°、45°等。
可以理解到，在安装座310的位置相对固定的情况下，两条连接筋320之间的夹角越大，则两条连接筋320之间的跨度也越大，若跨度过大会影响连接筋320的受力分布，容易降低连接筋320的支撑强度。
需要说明的是，安装座310可设置三条以上连接筋320，相邻的连接筋320之间的夹角α均满足0°≤α≤45°。例如，以三条连接筋320为示例，其中两条连接筋320平行设置，第三条连接筋320设置在平行的两条连接筋320之间，且第三条连接筋320分别与平行的两条连接筋320相交，相邻的连接筋320之间的夹角α为45°，具体不再赘述。
参见图2、7、8和9所示，在一些实施例中，连接筋320整体呈条状，在连接筋320沿端盖300的轴向的表面上呈现一定的弧度变化。具体来说，在端盖300的轴向上，连接筋320上朝向塑封外壳120方向的一侧为第一表面322，背向第一表面322的一侧为第二表面323。气流经过通孔321吹向塑封外壳120时，气流会依次经过第二表面323和第一表面322，第一表面322和第二表面323均为弧形面，其中，第一表面322可理解为上表面，第二表面323可理解为下表面。
实施例中，第一表面322和第二表面323分别由一段的弧形面组成，可理解到，第一表面322和第二表面323的轮廓线为一段弧形线，连接筋320的上表面和下表面均采用弧形面，有利于进一步降低风阻。当然，连接筋320的上表面和下表面不限于实施例所示的结构，也可以是由多段弧形面组合而成，满足结构拓扑优化，能够充分利用材料，达到设计优化的效 果，使连接筋320受力更合理，提升支撑强度。例如，上表面和下表面分别由三段的弧形面组成，即上表面和下表面的轮廓线分别具有三段弧形线；也可以是，上表面由三段弧形面组成，下表面有两段弧形面组成。
参见图7和8所示，每条连接筋320的横截面形状沿连接筋320的轴向为非均匀变化，实施例中，连接筋320整体呈中间细两端粗的形状，具体的，连接筋320的横截面的面积由两端向中间逐渐减小。
可以理解的是，连接筋320两端横截面面积较大，而连接筋320中间部位横截面面积相对较小，能够使连接筋320与端盖300和安装座310的连接更加稳定可靠，即连接筋320的两端得到加固，使连接筋320的受力达到最优化，支撑强度更高；而且，连接筋320中间部位相对于两端较细，有利于进一步降低连接筋320的风阻，结构更加合理。
需要说明的是，考虑到连接筋320对整个电机1000进行支撑，连接筋320主要的受力方向为沿端盖300的轴向。为进一步提高连接筋320的支撑强度，实施例中将连接筋320的横截面的高度设置不小于横截面的宽度，连接筋320横截面的高度为连接筋320沿端盖300的轴向的高度，如图9中所示连接筋320横截面的高度为H3，如图10中所示连接筋320横截面的宽度为H4，H3与H4满足H3≥H4，可理解到，连接筋320在横截面上的高度相对于宽度越大，支撑强度更高，保证连接筋320沿端盖300轴向上具有较高的强度，支撑更加牢固可靠，满足安装标准及使用要求。
参见图2所示，安装座310呈板状，安装座310与端盖300的轴线垂直，安装座310的具体尺寸根据安装要求而设计，此处不作限定。每个安装座310上的连接筋320与安装座310倾斜连接，图2所示为电机1000的侧视图，连接筋320与安装座310处于不同的平面上，且连接筋320的上表面和下表面具有弧形面，相邻安装座310上的连接筋320配合呈喇叭形状。
其中，端盖300上与塑封外壳120连接的一侧为第一侧面，背向第一侧面的另一侧为第二侧面，如图7和8所示，第一侧面可理解为端盖300的上端面，第二侧面可理解为端盖300的下端面。端盖300的上端面设置有安装腔330，定子铁芯110与安装腔330匹配，使定子铁芯110更加稳定。
可理解到，每个安装座310上的连接筋320，一端连接在端盖300的外侧靠近安装腔330端口的位置，另一端与安装座310连接，安装座310设置靠近下端面，使得连接筋320由靠近第一端面位置倾斜延伸至安装座310的位置，这样在连接筋320均匀分布的情况下，所有的连接筋320配合呈喇叭状结构对电机1000进行支撑，结构优化效果佳，使连接筋320具有较高的支撑强度，且最大限度降低连接筋320对气流的风阻。
参见图3和4所示，在每个安装座310上设置第一安装孔311，安装座310通过第一安装孔311与电器设备上的安装支架进行连接。例如，以商用中央空调器为示例，在中央空调外机上设置有安装支架，利用螺钉等连接件穿过第一安装孔311，将安装座310与安装支架连接起来，从而将电机1000固定安装在中央空调器上。此外，可以在任意两个安装座310上设置定位钉312，定位钉312与安装支架上的定位孔对应，便于安装座310与安装支架快速定位。在安装电机1000时，先通过定位钉312与安装支架上的定位孔对应配合后，然后通过螺钉进行固定，有利于提高安装效率。
需要说明的是，端盖300与连接筋320、安装座310为一体成型结构，使电机1000端盖300的整体结构具有较高的稳定性和可靠性。此外，如图3和4所示，第一安装孔311沿端盖300的轴向贯穿安装座310，定位钉312设置在安装座310上朝向远离定子组件100的一 侧。
参见图7和8所示，在一些实施例中，在端盖300的外侧边设置向外延伸的凸缘340，该凸缘340设置靠近安装腔330端口的位置。凸缘340沿径向凸出于端盖300的外侧，连接筋320连接在凸缘340上，凸缘340能够对连接筋320与端盖300的连接处起到加固作用，使连接筋320结构更加可靠，支撑强度更高。
实施例中，凸缘340沿端盖300的周向延伸，使得相邻安装座310上的连接筋320能够通过凸缘340相连，进一步增加结构强度。其中，凸缘340上设置有第二安装孔341，凸缘340通过第二安装孔341与塑封外壳120上的凸耳124连接，使得端盖300能够与塑封外壳120相连，这样凸缘340既可以起到加固作用，又可以与塑封外壳120连接，简化电机1000的整体结构。
参见图4和8所示，在端盖300的下端面上设置第一加强筋350和第二加强筋360，其中，第一加强筋350沿端盖300的周向间隔分布，且第一加强筋350沿端盖300的径向延伸至端盖300的边缘；第二加强筋360沿端盖300的径向间隔分布，且第二加强筋360沿端盖300的周向延伸，使得第一加强筋350与第二加强筋360能够在下端面上相交。可以理解的是，第一加强筋350呈放射状分布，与沿周向延伸的第二加强筋360交织形成网状结构，能够对端盖300起到有效的加固作用。
需要说明的是，实施例中，在安装腔330内的中心位置设置有第一轴承室331，第一轴承室331内安装有轴承400，该第一轴承室331凹陷形成在安装腔330的底面，第一轴承室331的底面为封闭结构。由于第一轴承室331朝向端盖300的下端面凹陷成型，在下端面的表面与第一轴承室331对应的位置形成有凸起，这样第一加强筋350能够与该凸起相连，即第一加强筋350与第一轴承室331的外侧交错相连，进一步提高电机1000端盖300整体的结构刚性，有利于轴承400能够承载更大的载荷。
参见图7和8所示，在端盖300上设置出线孔332，出线孔332沿轴向贯穿端盖300，使端盖300的第一侧面与第二侧面连通，便于电源线500从电机1000的外侧沿出线孔332进入到腔体内，从而使电源线500能够与定子组件100连接。
此外，在端盖300上还设置有接地孔333，接地孔333设于安装腔330内，端盖300在装配时，在接地孔333处通过螺钉与接地线相连接，使得端盖300能够实现接地，满足电机1000的电气化要求。
参见图6所示，塑封外壳120内设有第二轴承室123，第二轴承室123内安装有轴承400，转轴220的一端与第一轴承室331内的轴承400连接，转轴220的另一端与第二轴承室123内的轴承400连接，使转轴220得到稳定支撑。如图1所示，在轴孔122位置设置有防水罩125，有效提高电机1000的防水性能。
参见图11和15所示，在一些实施例中，转子铁芯210包括内铁芯213和外铁芯211，转轴220与内铁芯213连接，外铁芯211包括多个外铁芯单元212，多个外铁芯单元212围绕内铁芯213间隔排列设置，相邻的外铁芯单元212之间隔开形成容纳槽，每个容纳槽内设置有永磁体，使永磁体置于外铁芯211内。图11中所示，转子铁芯210包括有10个外铁芯单元212和1个内铁芯213，永磁体的数量也为10个。
考虑到电机1000在工作时，转子铁芯210与端盖300之间会形成电势差，传统的转子铁芯210中，由于外铁芯211与内铁芯213之间通过内磁桥连接起来，轴电压会对轴承400产生电腐蚀，进而对轴承400造成损伤，可靠性降低。基于此，如图15所示，实施例中将每个 外铁芯单元212均与内铁芯213隔开，通过注塑方式将绝缘的非导磁材料填充在外铁芯单元212与内铁芯213之间，形成第二注塑体215，通过第二注塑体215能够使外铁芯211、内铁芯213与永磁体结合成一体式结构。实施例中永磁体为磁瓦214。
可理解到，相邻外铁芯单元212之间均断开，且每个外铁芯单元212与内铁芯213之间均隔开，第二注塑体215使得外铁芯211与内铁芯213之间以及磁瓦214与内铁芯213之间均形成绝缘，从而提高转轴220与外铁芯211之间的绝缘性，有效降低轴电压，大大降低轴承400发生电腐蚀损伤的风险，可靠性更高。实施例中第二注塑体215可以是树脂类材质，具体不作限定。
参见图11和13所示，其中，每个外铁芯单元212包括沿转子铁芯210的轴向层叠的多个扇形片2121，每个扇形片2121大致呈扇形形状，沿转子铁芯210的径向方向上，扇形片2121朝向内铁芯213的一侧为内侧，远离内铁芯213的一侧为外侧，在扇形片2121的内侧凸出形成有第一凸起，第一凸起用于对磁瓦214进行定位。
具体来说，相邻外铁芯单元212之间均断开，容纳槽的内侧均敞开且与内铁芯213对应，磁瓦214装配在容纳槽内，第一凸起朝向容纳槽的方向延伸，第一凸起可理解凸出形成在扇形片2121内侧的凸起结构，通过第一凸起能够对磁瓦214内侧进行支撑，在填充第二注塑体215时能够对磁瓦214起到定位作用，减少磁瓦214在容纳槽内出现偏移，提高稳定性和可靠性。
参见图11和13所示，在一些实施例中，扇形片2121的内侧还设置有第二凸起，第二凸起朝向内铁芯213的方向延伸。具体的，第二凸起包括第一延伸段2124和第二延伸段2125，第一延伸段2124和第二延伸段2125分别沿转子铁芯210的周向延伸且对称分布，可理解到，内铁芯213与外铁芯211之间填充第二注塑体215，通过第一延伸段2124与第二延伸段2125嵌入到第二注塑体215中，有利于提高外铁芯单元212与第二注塑体215的结合力，增加结构强度。
需要说明的是，图13所示实施例中，第二凸起上的第一延伸段2124与第二延伸段2125形成Y形结构，第二注塑体215完全包覆该Y形结构，即该Y形结构能够完全嵌入到注塑体内，使外铁芯211与注塑体连接更加紧密牢固，保证外铁芯211在径向和周向上与第二注塑体215的结合均得到加固，从而大大提高转子组件200的整体强度，转子组件200在输出大转矩时的稳定性更高。当然，第一延伸段2124和第二延伸段2125配合形成的形状不限于上述示例，也可以是T形或其它形状。
需要说明的是，第一凸起包括第三延伸段2122和第三延伸段2122，第三延伸段2122和第四延伸段2123分别沿转子铁芯210的周向延伸，使第三延伸段2122和第四延伸段2123分别对应相邻的磁瓦214进行定位。第三延伸段2122和第四延伸段2123均设置在扇形片2121的内侧且沿转子铁芯210的径向对称分布，图11和13中所示第三延伸段2122沿逆时针方向延伸，第四延伸段2123沿顺时针方向延伸。可理解到，相邻的两个扇形片2121之间形成容纳槽，其中一个扇形片2121上的第三延伸段2122与另一个扇形片2121上的第四延伸段2123配合对该容纳槽的磁瓦214进行定位，结构稳定可靠。
参见图11和14所示，在一些实施例中，扇形片2121的外侧为圆弧边，该圆弧边由三段弧形边组成，三段弧形边沿转子铁芯210的周向依次连接形成外轮廓线，图14中所示三段弧形边分别为第一弧形边2126、第二弧形边2127和第三弧形边2128。可理解到，具有三段弧形边能够使转子铁芯210与定子极靴(附图未示出)之间的气隙呈变化趋势，与外轮廓线为 圆形的转子铁芯210相比，本实施例通过上述的外轮廓线形状的设置，可减少从转子铁芯210流到定子极靴再流回转子铁芯210磁路的量，这样可减少转子铁芯210在磁极交替处的漏磁现象，提高磁瓦214的利用率，有利于提高电机1000性能。
需要说明的是，圆弧边的弧形边不限于实施例所示的第一弧形边2126、第二弧形边2127和第三弧形边2128，圆弧边也可以是三段以上，且圆弧边的数量为奇数，例如是五段、七段等，具体不再赘述。
参见图12所示，在一些实施例中，在转子铁芯210的轴向上，磁瓦214的两端分别凸出于外铁芯211的端面。以磁瓦214上的凸出的高度为示例进行说明，该凸出的高度H1理解为磁瓦214顶端与外铁芯211顶端之间的距离，外铁芯211的高度为H2，H1与H2的比例满足0.02≤H1/H2≤0.3，相对于磁瓦214与外铁芯211高度一致的结构，能够解决反电势高的问题，有利于提高电机1000性能。
考虑到当磁瓦214凸出于外铁芯211的高度过大时，对性能影响效果不太明显，即投入的成本与性能提升不成正比，因此，本实施例中将磁瓦214的高度限定满足上述的比例关系，使转子铁芯210设计更加合理。
需要说明的是，为避免磁瓦214裸露，第二注塑体215覆盖在磁瓦214的两端，如图15所示。实施例中磁瓦214采用长方体结构，磁瓦214可以是铁氧体类的烧结磁铁或钕磁铁等，形状也可以是梯形等。
参见图11所示，在一些实施例中，内铁芯213包括沿转子铁芯210的轴向层叠的多个环圈片，每个环圈片的外侧沿周向设置有第三凸起2131，该第三凸起2131可理解为环圈片外周沿的凸起结构，环圈片大致呈圆环状，第三凸起2131的顶端为圆弧边，第三凸起2131与环圈片之间为圆弧过渡。
可以理解的是，第三凸起2131的数量与磁瓦214的数量一致，使得第三凸起2131与磁瓦214一一对应，且第三凸起2131与永磁体之间通过第二注塑体215隔开形成绝缘，第三凸起2131嵌入到第二注塑体215内，通过第三凸起2131能够增加内铁芯213与第二注塑体215的结合力，配合第二凸起所起到的作用，这样能够大大提高内铁芯213、外铁芯211与第二注塑体215的结合力，从而有效提高转子铁芯210的整体强度。
参见图11所示，在一些实施例中，每个外铁芯单元212上均设置有第一通槽2111，第一通槽2111沿转子铁芯210的轴向贯穿外铁芯单元212，即第一通槽2111贯穿每个扇形片2121。注塑时，将非导磁材料注入到每个第一通槽2111中，使第二注塑体215能够填充到每个第一通槽2111中，每个外铁芯单元212上的所有扇形片2121能够得到固定。这样第二注塑体215同时填充在外铁芯211与内铁芯213之间以及外铁芯211上的每个第一通槽2111中，进一步提高转子铁芯210的整体强度。
可理解到，第二注塑体215能够在转子铁芯210轴向的两端覆盖磁瓦214以及部分的转子铁芯210，使外铁芯211、内铁芯213和磁瓦214组成转子组件200，这样能够在保证结构强度的前提下，降低了外铁芯211与内铁芯213之间的漏磁，提高了电机1000的功率密度。
需要说明的是，第一通槽2111的横截面形状不限于圆形，也可以是多边形，例如，如图14中所示的扇形片2121的结构示意图，第一通槽2111的形状为三角形，可理解到，第二注塑体215填充在第一通槽2111内，三角形的注塑体具有更高的强度，有利于提高外铁芯211的结构强度，更加实用可靠。
此外，每个外铁芯单元212上均设置有第二通槽2112，第二通槽2112沿转子铁芯210 的轴向贯穿外铁芯单元212，通过第二通槽2112对外铁芯单元212进行定位。具体的，在注塑过程，利用注塑模具上的第一定位销(附图未示出)***内铁芯213的轴安装孔中，第一定位销对内铁芯213进行定位，使每个环圈片能够对应层叠；同时通过第二定位销(附图未示出)***第二通槽2112，使每个扇形片2121同时得到定位，定位更加稳定可靠，然后再对外铁芯211与内铁芯213之间的间隙以及每个第一通槽2111进行注塑操作，注塑完成后拔出第一定位销和第二定位销，即完成转子铁芯210的一体成型。
本发明实施例还提供的电器设备(附图未示出)，该电器设备可以是空调器、冰箱等，电器设备采用的电机1000为上述实施例的电机1000。由于电器设备采用了上述实施例的电机1000的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再赘述。
上面结合附图对本发明实施例作了详细说明，但是本发明不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (21)

  1. 一种电机，包括：
    外壳；
    转子组件；
    定子组件，所述定子组件设于所述外壳内；以及
    端盖，所述端盖与所述外壳连接形成用于容纳所述转子组件的腔体，所述转子组件可转动地设于所述腔体内；
    其中，所述端盖的外周沿设有向外凸出的多个安装座，所述安装座与所述端盖连接，所述安装座设有安装孔，每个所述安装座与所述端盖之间镂空设置形成通孔，所述外壳的外侧沿所述外壳的周向间隔设有多条散热筋。
  2. 根据权利要求1所述的电机，其中，所述通孔沿所述外壳的轴向设置，在垂直于所述外壳的轴向的投影面上，至少部分的所述散热筋的投影位于所述通孔的投影区域内。
  3. 根据权利要求1所述的电机，其中，所述散热筋的横截面宽度向远离所述外壳的方向逐渐减小，所述散热筋远离所述外壳的外侧面为圆弧面。
  4. 根据权利要求1所述的电机，其中，相邻的所述散热筋之间具有最小间距L1，所述散热筋的横截面具有最大宽度L2，所述最小间距L1与所述最大宽度L2满足L1≥2L2。
  5. 根据权利要求1所述的电机，其中，所述外壳沿轴向远离所述端盖的一端设有端板，所述散热筋的一端沿所述端板的径向朝向所述端板的中心延伸设置。
  6. 根据权利要求1至5任意一项所述的电机，其中，所述定子组件包括定子铁芯，所述定子铁芯外侧注塑形成所述外壳和所述散热筋。
  7. 根据权利要求1所述的电机，其中，所述安装座设置至少两条与所述端盖连接的连接筋，每个所述安装座上相邻的两条所述连接筋之间形成所述通孔。
  8. 根据权利要求7所述的电机，其中，每个所述安装座上任意的两条所述连接筋之间具有夹角α，所述夹角α满足0°≤α≤45°。
  9. 根据权利要求7所述的电机，其中，所述连接筋沿所述端盖的轴向一端设有第一表面，另一端设有第二表面，所述第一表面和所述第二表面分别由至少一段的弧形面组成。
  10. 根据权利要求9所述的电机，其中，所述连接筋的横截面的面积由两端向中间逐渐减小。
  11. 根据权利要求7所述的电机，其中，所述安装座沿所述端盖的径向向远离所述端盖的方向延伸设置，每个所述安装座上的所述连接筋与相应的所述安装座倾斜设置。
  12. 根据权利要求7所述的电机，其中，所述端盖沿所述端盖的轴向一端设有第一侧面，另一端设有第二侧面，所述第一侧面与所述外壳连接，所述第二侧面设有第一加强筋和第二加强筋，所述第一加强筋沿所述端盖的周向间隔分布，所述第二加强筋沿所述端盖的径向间隔分布，所述第一加强筋与所述第二加强筋交叉设置。
  13. 根据权利要求1所述的电机，其中，所述转子组件包括：
    转子铁芯，所述转子铁芯包括内铁芯和外铁芯，所述内铁芯设有转轴，所述外铁芯包括围绕所述内铁芯间隔设置的多个外铁芯单元，相邻的所述外铁芯单元之间形成容纳槽；以及
    永磁体，所述永磁体设于所述容纳槽内；
    其中，所述外铁芯与所述内铁芯之间间隔设置且填充有注塑体，所述外铁芯与所述内铁 芯之间通过所述注塑体连接。
  14. 根据权利要求13所述的电机，其中，所述外铁芯单元包括沿所述转子铁芯的轴向层叠的多个扇形片，所述扇形片朝向所述内铁芯的内侧设有用于定位所述永磁体的第一凸起。
  15. 根据权利要求14所述的电机，其中，所述扇形片的内侧还设有第二凸起，所述第二凸起朝向所述内铁芯的方向延伸，所述第二凸起包括第一延伸段和第二延伸段，所述第一延伸段沿所述转子铁芯的周向延伸，所述第二延伸段沿所述转子铁芯的周向且朝向远离所述第一延伸段的方向延伸。
  16. 根据权利要求14所述的电机，其中，所述扇形片远离所述内铁芯的外侧具有圆弧边，所述圆弧边设置至少有三段，且所述圆弧边的数量为奇数。
  17. 根据权利要求13所述的电机，其中，所述内铁芯包括沿所述转子铁芯的轴向层叠的多个环圈片，所述环圈片的外侧沿所述转子铁芯的周向设有第三凸起，所述第三凸起与所述永磁体对应且间隔设置，所述第三凸起与所述永磁体之间填充有所述注塑体。
  18. 根据权利要求13所述的电机，其中，在所述转子铁芯的轴向上，所述永磁体的两端分别凸出于所述外铁芯的端面，且凸出的高度H1与所述外铁芯的高度H2的比例满足0.02≤H1/H2≤0.3。
  19. 根据权利要求13所述的电机，其中，每个所述外铁芯单元均设有第一通槽，所述第一通槽沿所述转子铁芯的轴向贯穿相应的所述外铁芯单元，所述第一通槽内填充有所述注塑体。
  20. 根据权利要求13所述的电机，其中，每个所述外铁芯单元均设有第二通槽，所述第二通槽沿所述转子铁芯的轴向贯穿相应的所述外铁芯单元，以用于定位相应的所述外铁芯单元。
  21. 一种电器设备，包括如权利要求1至20任意一项所述的电机。
PCT/CN2021/120333 2021-04-26 2021-09-24 电机及电器设备 WO2022227387A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023553327A JP2024508153A (ja) 2021-04-26 2021-09-24 モータ及び電気機器

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202110455077.8A CN113054783A (zh) 2021-04-26 2021-04-26 电机及电器设备
CN202120875860.5U CN214543890U (zh) 2021-04-26 2021-04-26 电机及电器设备
CN202110455077.8 2021-04-26
CN202120875860.5 2021-04-26

Publications (1)

Publication Number Publication Date
WO2022227387A1 true WO2022227387A1 (zh) 2022-11-03

Family

ID=83847749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/120333 WO2022227387A1 (zh) 2021-04-26 2021-09-24 电机及电器设备

Country Status (2)

Country Link
JP (1) JP2024508153A (zh)
WO (1) WO2022227387A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0974727A (ja) * 1995-09-08 1997-03-18 Denso Corp 交流発電機用整流装置
CN203398916U (zh) * 2013-08-14 2014-01-15 宁波市法莱欣科技有限公司 一种车用发电机端盖
CN205846921U (zh) * 2016-07-14 2016-12-28 浙江正田电机制造有限公司 一种汽车发电机壳体
CN113054783A (zh) * 2021-04-26 2021-06-29 广东威灵电机制造有限公司 电机及电器设备
CN214900431U (zh) * 2021-04-26 2021-11-26 广东威灵电机制造有限公司 电机端盖、电机及电器设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0974727A (ja) * 1995-09-08 1997-03-18 Denso Corp 交流発電機用整流装置
CN203398916U (zh) * 2013-08-14 2014-01-15 宁波市法莱欣科技有限公司 一种车用发电机端盖
CN205846921U (zh) * 2016-07-14 2016-12-28 浙江正田电机制造有限公司 一种汽车发电机壳体
CN113054783A (zh) * 2021-04-26 2021-06-29 广东威灵电机制造有限公司 电机及电器设备
CN214900431U (zh) * 2021-04-26 2021-11-26 广东威灵电机制造有限公司 电机端盖、电机及电器设备

Also Published As

Publication number Publication date
JP2024508153A (ja) 2024-02-22

Similar Documents

Publication Publication Date Title
CN111255735B (zh) 电驱动泵
EP1923982B1 (en) Axial air gap type electric motor
CN106321506B (zh) 转子组件以及电驱动泵
US11258321B2 (en) Motor having rotor frame with magnet fixing jig holes
US7362024B2 (en) Rotor of BLDC motor
CN208489707U (zh) 转子和具有其的电机
CN214543890U (zh) 电机及电器设备
WO2022227387A1 (zh) 电机及电器设备
KR100934661B1 (ko) 모터
JP2012180810A (ja) 送風装置
CN113054783A (zh) 电机及电器设备
CN101931300A (zh) 无刷直流马达及其定子
CN208522548U (zh) 转子总成和电动机
JP2020512808A (ja) モータ用ロータ、モータ及び圧縮機
CN206962570U (zh) 一种电机转子
CN219802047U (zh) 一种具有散热结构的电机
CN219412984U (zh) 无马达壳的散热风扇
CN220544766U (zh) 电机和电器
CN216530769U (zh) 一种磁瓦内嵌包塑转子结构及应用其的电机
WO2023108914A1 (zh) 电机、动力总成及助力自行车
CN216016563U (zh) 转子冲片、转子组件和电机
CN216056522U (zh) 组装式高效散热型转子
CN221227268U (zh) 一种基于盘式电机的冷却结构
CN118074390B (zh) 永磁电机、压缩机及空调***
WO2022222374A1 (zh) 转子组件、电机及家用电器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21938851

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2023553327

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21938851

Country of ref document: EP

Kind code of ref document: A1