CN108832748B - Insulating frame, stator module, motor, washing machine of motor for washing machine - Google Patents
Insulating frame, stator module, motor, washing machine of motor for washing machine Download PDFInfo
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- CN108832748B CN108832748B CN201810621001.6A CN201810621001A CN108832748B CN 108832748 B CN108832748 B CN 108832748B CN 201810621001 A CN201810621001 A CN 201810621001A CN 108832748 B CN108832748 B CN 108832748B
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- insulation
- insulating
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- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
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- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
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- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses an insulating frame of a motor for a washing machine, a stator component, the motor and the washing machine, wherein the insulating frame comprises: the first insulating framework is suitable for being installed at one shaft end of a stator core of the motor; the second insulating framework is suitable for being installed at the other shaft end of the stator core; and the first insulating framework and the second insulating framework are connected through the third insulating connecting frame, the third insulating connecting frame comprises a plurality of insulating insertion rods which are annular and are arranged at intervals, and each insulating insertion rod is suitable for being inserted into a notch of a stator slot of the stator core. According to the insulating frame of the motor for the washing machine, the wind noise generated by the rotation of the motor rotor is avoided, the safety performance is improved, the structure is simple, the installation is convenient, and the user experience is good.
Description
Technical Field
The invention relates to the technical field of clothes treatment equipment, in particular to an insulating frame of a motor for a washing machine, a stator assembly, the motor and the washing machine.
Background
In the prior art, an insulation structure of a brushless direct current motor consists of an upper insulation framework, a lower insulation framework and slot paper, wherein the upper insulation framework and the lower insulation framework are arranged at two ends of a stator core through positioning holes and only have the function of insulating coil end parts; slot paper is installed in the stator slot, play the effect of insulating between stator slot and the coil, and there is not other insulation system between the stator slot notch, when the high-speed rotation of motor, the rotatory high-speed air current that produces of electric motor rotor can get into between the two-layer coil clearance of stator slot notch and same stator slot, thereby form the wind and make an uproar, make the motor produce the noise, and two-layer coil in the same stator slot is close to notch position distance nearer, when the motor is in the abominable or moist operating mode of air of environment, take place alternate short circuit easily, lead to motor overcurrent, the hidden danger of catching fire has, therefore, there is the improvement space.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an insulation frame for a motor of a washing machine, which has a good insulation performance and is convenient to install.
The invention also provides a stator assembly with the insulating framework.
The invention also provides a motor with the stator assembly.
The invention also provides a washing machine with the motor.
According to an embodiment of the first aspect of the present invention, an insulation holder for a motor for a washing machine includes: the first insulating framework is suitable for being installed at one shaft end of a stator core of the motor; the second insulating framework is suitable for being installed at the other shaft end of the stator core; and the first insulating framework and the second insulating framework are connected through the third insulating connecting frame, the third insulating connecting frame comprises a plurality of insulating insertion rods which are annular and are arranged at intervals, and each insulating insertion rod is suitable for being inserted into a notch of a stator slot of the stator core.
According to the insulating frame of the motor for the washing machine, the end part insulating function is realized through the first insulating framework and the second insulating framework, the insulating insertion rod of the third insulating connecting frame is inserted into the notch of the stator slot of the stator core, when the motor rotates at a high speed, the insulating insertion rod can reduce wind noise generated by the rotation of the motor rotor, so that the noise generated when the motor is loaded and operates at a high speed is reduced, and the insulating frame is simple in structure, convenient to install and good in user experience.
According to the insulating frame of the motor for the washing machine, at least one of the first insulating framework and the second insulating framework is connected with the third insulating connecting frame in a clamping mode.
According to the insulating frame of the motor for the washing machine, one of the first insulating framework and the third insulating connecting frame is provided with a clamping groove, and the other one of the first insulating framework and the third insulating connecting frame is provided with a clamping hook matched in the clamping groove.
Optionally, the clamping groove is located on the third insulating connecting frame and forms a notch with an opening facing away from the insulating insertion rod, and the clamping hook is arranged at the end of the first insulating framework and comprises an extending portion located on the outer side of the clamping groove and a hook head portion extending towards the inner side of the clamping groove.
Further, one of the first insulating framework and the third insulating connecting frame is provided with a positioning groove, and the other of the first insulating framework and the third insulating connecting frame is provided with a positioning piece matched in the positioning groove.
Optionally, the positioning groove is located on the third insulating connecting frame and extends along the length direction of the insulating plug.
Optionally, the third insulating connecting frame further includes a first insulating ring frame, the plurality of insulating insertion rods are arranged along a circumferential direction of the first insulating ring frame at intervals, and one end of each insulating insertion rod is connected to the first insulating ring frame, wherein the plurality of clamping grooves and the plurality of positioning grooves are respectively formed in the first insulating ring frame and are circumferentially staggered.
Further, the first insulating ring frame and the first insulating framework are both formed into a ring shape, at least one part of the first insulating ring frame is arranged on the inner side of the first insulating framework, and the positioning groove is formed along the axial direction of the first insulating ring frame and faces the positioning groove which is opened on one side of the first insulating framework.
According to the insulating frame of the motor for the washing machine, the third insulating connecting frame further comprises a second insulating ring frame, the second insulating ring frame is connected with the second insulating framework, the plurality of insulating insertion rods are arranged at intervals along the circumferential direction of the second insulating ring frame, and one end of each insulating insertion rod is connected with the second insulating ring frame.
According to the insulating frame of the motor for the washing machine, the first insulating framework, the second insulating framework and the third insulating connecting frame are all made of reinforced nylon, and the third insulating connecting frame is an integrally-formed part.
A stator assembly according to an embodiment of the second aspect of the invention comprises: the stator core is provided with a plurality of stator teeth and a plurality of stator slots, the plurality of stator teeth are arranged at intervals along the circumferential direction of the stator core, and the stator slots are defined between two adjacent stator teeth; the stator winding is wound on the plurality of stator teeth; and the insulating frame of the motor for the washing machine according to the embodiment of the first aspect of the invention, the first insulating framework is mounted at one axial end of the stator core of the motor, the second insulating framework is mounted at the other axial end of the stator core, and the third insulating connecting frame is connected between the first insulating framework and the second insulating framework, wherein a plurality of insulating insertion rods are in one-to-one correspondence with a plurality of stator slots, and each insulating insertion rod extends along the axial direction of the stator core and is inserted into a notch of the stator slot.
According to the stator assembly provided by the embodiment of the invention, the insulating insertion rod of the third insulating connecting frame is inserted into the notch of the stator slot of the stator core, so that when the motor rotates at a high speed, the insulating insertion rod can reduce wind noise generated by the rotation of the motor rotor, and the noise generated when the motor runs at a high speed with a load is reduced. In addition, the insulating insertion rod plays an insulating role between two phases of the stator winding, so that the motor is prevented from generating interphase short circuit, accidents are prevented, and the safety performance is improved; therefore, the stator assembly effectively improves the insulation effect and the safety performance of the motor, and improves the user experience.
According to the stator assembly provided by the embodiment of the invention, one side of at least one insulating insertion rod facing the stator teeth is provided with a positioning bulge clamped with the stator teeth, and the positioning bulge extends along the length direction of the insulating insertion rod.
According to the stator assembly of the embodiment of the invention, each insulation insert rod is provided with a U-shaped opening facing the inside of the stator slot in the cross section and comprises two limbs which are oppositely arranged, and the positioning bulge is arranged on one side of each limb facing the stator tooth so as to form a step slope on one side of the insulation insert rod facing the stator tooth.
According to the stator assembly provided by the embodiment of the invention, the plurality of insulating insertion rods comprise first insulating insertion rods and second insulating insertion rods, the positioning protrusions are arranged on the first insulating insertion rods, and at least one second insulating insertion rod is arranged between any two adjacent first insulating insertion rods.
According to the motor of the embodiment of the third aspect of the invention, the stator assembly of the embodiment of the second aspect of the invention is adopted, so that when the motor rotates at a high speed, wind noise is avoided, and the noise of the motor during high-speed operation with load is reduced; the motor is prevented from generating interphase short circuit, accidents are prevented, safety performance is improved, and user experience is good.
According to the washing machine provided by the embodiment of the fourth aspect of the invention, the motor provided by the embodiment of the third aspect of the invention is adopted, so that when the washing machine works, the noise generated by the working of the motor is low, the short circuit in the working of the motor is avoided, the safety is improved, and the user experience is good.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an insulation holder according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first insulating skeleton according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a third insulating link according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the structure A of FIG. 3;
FIG. 5 is a schematic structural view of a stator assembly according to an embodiment of the present invention;
FIG. 6 is a side view of a stator assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a motor according to an embodiment of the present invention.
Reference numerals:
the motor (100) is provided with a motor,
an insulating frame (300) is provided,
the first insulating frame 31, the hook 311, the extension portion 3111, the hook head portion 3112, the positioning piece 312,
the second insulating frame 32 is formed of a second insulating material,
a third insulating and connecting frame 33 is provided,
an insulating rod 331, a first insulating rod 331a, a second insulating rod 331b, a positioning protrusion 3311, a limb 3312, a step slope 3313,
a first insulating ring frame 332, a locking groove 3321, a positioning groove 3322, a second insulating ring frame 333,
and a rotor 40.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An insulation holder 300 of a motor for a washing machine according to an embodiment of the present invention will be described with reference to fig. 1 to 7.
As shown in fig. 1 to 4, an insulation frame 300 of a motor for a washing machine according to an embodiment of the present invention includes a first insulation frame 31, a second insulation frame 32, and a third insulation connection frame 33.
First insulating skeleton 31 and second insulating skeleton 32 pass through third insulating link 33 and connect, and third insulating link 33 includes a plurality of insulating inserted bars 331, and a plurality of insulating inserted bars 331 are the annular and arrange, and a plurality of insulating inserted bars 331 follow annular circumference interval arrangement, a plurality of insulating inserted bars 331 and a plurality of stator slot one-to-one of stator core 21, every insulating inserted bar 331 can peg graft in stator core 21's the notch department of the corresponding stator slot 22.
According to the insulation frame 300 of the motor for the washing machine, the end insulation function is realized through the first insulation framework 31 and the second insulation framework 32, the insulation insertion rod 331 of the third insulation connection frame 33 is inserted into the notch of the stator slot 22 of the stator core 21, when the motor 100 rotates at a high speed, the insulation insertion rod 331 can reduce wind noise generated by the rotation of the rotor 40 of the motor 100, and therefore noise generated when the motor 100 runs at a high speed with a load is reduced, and the insulation frame 300 is simple in structure, convenient to install and good in user experience.
According to an embodiment of the present invention, at least one of the first insulating frame 31 and the second insulating frame 32 is connected to the third insulating connecting frame 33 in a clamping manner, so that when the insulating frame 300 is mounted on the stator assembly 200, axial and radial limiting is achieved, a self-locking function is achieved through a clamping structure, the insulating frame 300 is prevented from being displaced, and the mounting stability of the insulating frame 300 is ensured.
According to an embodiment of the present invention, one of the first insulating bobbin 31 and the third insulating link 33 has a locking slot 3321, and the other of the first insulating bobbin 31 and the third insulating link 33 has a locking hook 311, so that the first insulating bobbin 31 and the third insulating link 33 are tightly connected by fitting the locking hook 311 into the locking slot 3321, and a self-locking function of the insulating link 300 at one axial end is achieved, thereby improving stability of the insulating link 300.
As shown in fig. 2 and 3, in some specific examples, the card slot 3321 is located on the third insulating connecting frame 33, an opening of the card slot 3321 faces away from the notch of the insulating rod 331, the hook 311 is disposed at an end of the first insulating frame 31, the hook 311 includes an extending portion 3111 and a hook head portion 3112, the extending portion 3111 is located outside the card slot 3321, and the hook head portion 3112 is connected at an end of the extending portion 3111 and extends into the card slot 3321.
When the insulating frame 300 is installed, the third insulating connecting frame 33 is inserted into the notch of the stator slot 22 of the stator core 21, the hook 311 of the first insulating framework 31 is correspondingly installed at the slot 3321 of the third insulating connecting frame 33, and the hook head 3112 is connected with the opening of the slot 3321 in an abutting mode, namely, the axial direction and the circumferential direction of the third insulating connecting frame 33 are limited, and the first insulating framework 31 and the third insulating connecting frame 33 are positioned and clamped.
In some examples, one of the first insulating bobbin 31 and the third insulating link 33 has a positioning groove 3322, and the other of the first insulating bobbin 31 and the third insulating link 33 has a positioning piece 312, and the positioning piece 312 is configured to be engaged with the positioning groove 3322, so as to perform a positioning function when the insulating frame 300 is mounted, and further limit axial and radial displacements of the insulating frame 300 after the insulating frame 300 is mounted.
In some specific examples, the positioning piece 312 is disposed on the first insulating frame 31, the positioning groove 3322 is located on the third insulating frame 33, and the positioning groove 3322 extends along the length direction of the insulating insertion rod 331, so that when the first insulating frame 31 is assembled with the third insulating frame 33, the positioning piece 312 and the positioning groove 3322 cooperate to limit the axial and radial displacement of the insulating insertion rod 331 in the stator core 21, so that the insulating insertion rod 331 does not disengage from the notch of the positioning groove 22, thereby performing an interphase insulating function between two phases of the stator winding 30, preventing an air flow generated by the high-speed rotation of the motor 100 from entering between the stator winding 30 and the stator core 21, avoiding wind noise, and reducing noise when the motor 100 operates at a high speed with a load.
As shown in fig. 3, in some examples, the third insulating connecting frame 33 further includes a first insulating ring frame 332, a plurality of insulating insertion rods 331 are arranged at intervals along a circumferential direction of the first insulating ring frame 332, and one end of each insulating insertion rod 331 is connected to the first insulating ring frame 332, each insulating insertion rod 331 is inserted at a notch of the stator slot 22 of the stator core 21, and the first insulating ring frame 332 is fixed to one end of the stator core 21 for being in fit connection with the first insulating frame 31.
Further, the third insulating connecting frame 33 includes a plurality of engaging grooves 3321 and a plurality of positioning grooves 3322, the plurality of engaging grooves 3321 and the plurality of positioning grooves 3322 are formed on the first insulating ring frame 332, and the plurality of engaging grooves 3321 and the plurality of positioning grooves 3322 are staggered along the circumferential direction of the first insulating ring frame 332. When the third insulating connecting frame 33 and the first insulating framework 31 are assembled, the positioning groove 3322 is matched with the positioning piece 312 of the first insulating framework 31, so that the positioning function is achieved; the clamping groove 3321 is matched with the clamping hook 311 to realize tight clamping of the clamping groove and the clamping hook.
In some examples, the first insulating ring frame 332 and the first insulating skeleton 31 are formed in a ring shape, at least a portion of the first insulating ring frame 332 is disposed inside the first insulating skeleton 31, the positioning groove 3322 extends in an axial direction of the first insulating ring frame 332, the positioning groove 3322 forms a positioning groove that is open toward one side of the first insulating skeleton 31 (open toward an outer side in a radial direction of the first insulating ring frame 332 as shown in fig. 3), and the positioning piece 312 of the first insulating skeleton 31 is inserted into the positioning groove in the axial direction of the first insulating ring frame 332, so that the mounting stability of the first insulating ring frame 332 and the first insulating skeleton 31 is ensured, and the relative movement of the first insulating ring frame 332 and the first insulating skeleton 31 after mounting is prevented.
As shown in fig. 1 and 3, according to an embodiment of the present invention, the third insulating link 33 further includes a second insulating link 333, the second insulating link 333 is connected to the second insulating frame 32, a plurality of insulating plugs 331 are arranged at intervals along a circumferential direction of the second insulating link 333, and the other end of each insulating plug 331 is connected to the second insulating link 333. The remaining structures (e.g., wiring structures) of the first insulating skeleton 31 and the second insulating skeleton 32 are known to those skilled in the art and will not be described in detail herein.
In some examples, the structure of the second insulating ring frame 333 may be the same as that of the first insulating ring frame 332, and the structure of the second insulating skeleton 32 may be the same as that of the first insulating skeleton 31, so that the second insulating skeleton 32 and the third insulating connection frame 33 also achieve positioning and clamping connection, and the stability of the insulating frame 300 is further improved.
According to an embodiment of the present invention, the first insulating frame 31, the second insulating frame 32, and the third insulating connecting frame 33 are made of reinforced nylon, so that the insulating frame 300 has good rigidity and toughness, thereby satisfying the insulating performance of the motor and improving the mounting firmness, and the third insulating connecting frame 33 is an integrally formed part, thereby further improving the stability of the insulating frame 300.
As shown in fig. 3 and 4, according to an embodiment of the present invention, at least one of the insulating rods 331 has a positioning protrusion 3311, when being installed, the positioning protrusion 3311 faces one side of a stator tooth of the stator core, so that the positioning protrusion 3311 is engaged with the stator tooth, and the positioning protrusion 3311 extends along a length direction of the insulating rod 331, so that the positioning protrusion 3311 is more tightly engaged with the stator tooth, thereby improving stability of the connection between the positioning protrusion 3311 and the stator tooth, and preventing the insulating rod 331 from rotating in the stator core 21.
According to an embodiment of the present invention, each of the insulating insertion rods 331 has a cross-section formed in a U shape with an opening facing the inside of the stator slot 22, and each of the insulating insertion rods 331 includes two limbs 3312 disposed opposite to each other, so as to insulate the stator winding 30 of the motor 100 from each other when the limbs 3312 are inserted into the positioning slots 22.
Further, the positioning protrusion 3311 is provided at a side of the limb 3312 facing the stator teeth of the motor 100, so that a step inclined surface 3313 may be formed at a side of the insulating insertion rod 331 facing the stator teeth, and the insulating insertion rod 331 is brought into abutting engagement with the stator teeth of the stator core by the step inclined surface 3313, thereby improving a tightness of connection of the insulating insertion rod 331 with the stator teeth, and preventing an air current generated when the motor 100 is rotated at a high speed from entering between the stator winding 30 and the stator core 21, which may cause wind noise.
In some examples, the plurality of insulating plugs 331 includes a first insulating plug 331a and a second insulating plug 331b, i.e., a portion of the plurality of insulating plugs 331 is the first insulating plug 331a, and the remaining portion is the second insulating plug 331b, and the sum of the number of the first insulating plugs 331a and the number of the second insulating plugs 331b is equal to the number of the insulating plugs 331. The first and second insulating plungers 331a, 331b include two oppositely disposed limbs 3312, i.e., the cross-sectional shapes of the first and second insulating plungers 331a, 331b each form a U-shape.
Furthermore, at least one second insulating inserted rod 331b is arranged between any two adjacent first insulating inserted rods 331a, the first insulating inserted rod 331a is provided with a positioning protrusion 3311, a step inclined plane 3313 between the positioning protrusion 3311 and the limb 3312 is connected with the stator teeth in an interference fit manner, the limb 3312 of the second insulating inserted rod 331b is inserted into the stator slot 22 of the motor 100, and the positioning protrusion 3311 is arranged on the limb 3312 of the at least one insulating inserted rod 331, so that the structural complexity of the insulating inserted rod 331 is reduced and the manufacturing and installation are convenient under the condition of meeting the requirement of stability.
The stator assembly 200 according to an embodiment of the present invention includes a stator core 21, a stator winding 30, and an insulating frame 300 of a motor for a washing machine according to an embodiment of the present invention.
The stator core 21 has a plurality of stator teeth (not shown in the figure) and a plurality of stator slots 22, the plurality of stator teeth are arranged along the circumferential direction of the stator core 21 at intervals, the stator slots 22 are defined between two adjacent stator teeth, the stator winding 30 is wound on the plurality of stator teeth, the first insulating framework 31 is installed at one shaft end of the stator core 21 of the motor 100, the second insulating framework 32 is installed at the other shaft end of the stator core 21, and the third insulating connecting frame 33 is connected between the first insulating framework 31 and the second insulating framework 32.
Wherein, a plurality of insulating inserted bar 331 and a plurality of stator slot 22 one-to-one, the quantity of insulating inserted bar 331 equals with the quantity of the notch of stator slot 22 promptly to can seal the notch of all stator slots 22, when motor 100 rotates at a high speed, a plurality of insulating inserted bar 331 can effectively reduce the rotor and rotate and the wind that produces makes an uproar, and then reduces the noise when motor 100 rotates at a high speed, improves user experience.
Further, every insulating inserted bar 331 extends along stator core 21's axial to make insulating inserted bar 331 can follow stator core 21's axial and peg graft in the notch of corresponding stator slot 22, on the one hand to stator winding 30 play alternate insulation effect between two-phase, on the other hand can prevent that the high-speed rotatory air current that produces of motor from getting into between stator winding 30 and the stator core 21, avoids forming wind and makes an uproar, and simple to operate, and use is experienced.
According to the stator assembly 200 of the embodiment of the present invention, by inserting the insulation insertion rod 331 of the third insulation connection bracket 33 into the notch of the stator slot 22 of the stator core 21, when the motor 100 rotates at a high speed, the insulation insertion rod 331 can reduce wind noise generated by the rotation of the rotor 40 of the motor 100, thereby reducing noise when the motor 100 operates at a high speed with a load. Moreover, the insulating insertion rod 331 plays an insulating role between two phases of the stator winding 30, so that the motor 100 is prevented from generating interphase short circuit, accidents are prevented, and the safety performance is improved; therefore, the stator assembly 200 can effectively improve the insulation effect and safety performance of the motor 100, and improve user experience.
According to an embodiment of the present invention, at least one of the insulating insertion rods 331 has a positioning protrusion 3311 on a side thereof facing the stator teeth, the positioning protrusion 3311 is adapted to be engaged with the stator teeth, and the positioning protrusion 3311 extends along a length direction of the insulating insertion rod 331, so that the positioning protrusion 3311 is more tightly fitted with the stator teeth, thereby improving a stability of the connection between the positioning protrusion 3311 and the stator teeth and preventing the insulating insertion rod 331 from rotating within the stator core 21.
According to an embodiment of the present invention, each of the insulating insertion rods 331 has a U-shaped cross section, the opening of the U-shaped cross section faces the direction of the inside of the stator slot 22, each of the insulating insertion rods 331 includes two limbs 3312 arranged oppositely, and the limbs 3312 are inserted into the positioning slot 22 to insulate the two phases of the stator winding 30 from each other.
Further, the positioning protrusion 3311 is provided at a side of the limb 3312 facing the stator teeth, so that a step inclined surface 3313 may be formed at a side of the insulating insertion rod 331 facing the stator teeth, and the insulating insertion rod 331 is brought into abutting engagement with the stator teeth by the step inclined surface 3313, thereby improving a tightness of the connection of the insulating insertion rod 331 with the stator teeth, and preventing an air current generated when the motor 100 is rotated at a high speed from entering between the stator winding 30 and the stator core 21, which may cause wind noise.
In some examples, the plurality of insulating rods 331 includes a first insulating rod 331a and a second insulating rod 331b, the positioning protrusions 3311 are disposed on the first insulating rod 331a, and at least one second insulating rod 331b is disposed between any two adjacent first insulating rods 331a, so that the positioning protrusions 3311 are disposed on the insulating rods 331 at intervals, and the structural complexity of the insulating rods 331 is reduced and the manufacturing and installation are facilitated while the requirement of stability is satisfied.
As shown in fig. 3, in some specific examples, two second insulating insertion rods 331b are disposed between two adjacent first insulating insertion rods 331a, that is, two second insulating insertion rods 331b are grouped in pairs and then staggered with the first insulating insertion rods 331a, wherein a side of the first insulating insertion rod 331a facing the stator teeth has a positioning protrusion 3311 for clamping the stator teeth, a step inclined plane 3313 is formed between the positioning protrusion 3311 and the limb 3312 for interference fit connection with the stator teeth, and the limb 3312 of the second insulating insertion rod 331b is inserted into the stator slot 22.
The motor 100 according to the embodiment of the present invention includes the stator assembly 200 according to the embodiment of the present invention, and by using the above-mentioned stator assembly 200, when the motor 100 rotates at a high speed, wind noise is prevented from being generated, and noise generated when the motor 100 runs at a high speed with a load is reduced; the motor 100 is prevented from generating interphase short circuit, accidents are prevented, safety performance is improved, and user experience is good.
According to the washing machine provided by the embodiment of the invention, the motor 100 is included, and by adopting the motor 100, when the washing machine works, the noise generated by the working of the motor 100 is low, the short circuit in the working of the motor 100 is avoided, the safety is improved, and the user experience is good.
One particular embodiment of a motor 100 according to the present invention is described below in conjunction with fig. 1-6.
The motor includes a stator assembly 200 and a rotor 40, and the stator assembly 200 includes a stator core 21, a stator winding 30, a plurality of insulation paper, and an insulation frame 300.
The insulating holder 300 includes: a first insulating skeleton 31, a second insulating skeleton 32 and a third insulating connecting frame 33.
The first insulating frame 31 is formed in an annular shape, the first insulating frame 31 is adapted to be mounted at one axial end of the stator core 21 of the motor 100, the first insulating frame 31 has a plurality of hooks 311 and a plurality of positioning pieces 312 thereon, and the plurality of hooks 311 and the plurality of positioning pieces 312 are arranged in a staggered manner along the circumferential direction of the first insulating frame 31. Each hook 311 includes an extension portion 3111 and a hook head portion 3112, the extension portion 3111 extends in the axial direction of the first insulating frame 31, and the hook head portion 3112 is connected to an end portion of the extension portion 3111.
The second insulating framework 32 is suitable for being installed at the other shaft end of the stator core 21, the third insulating connecting frame 33 comprises a plurality of insulating insertion rods 331, a first insulating ring frame 332 and a second insulating ring frame 333, the first insulating ring frame 332 forms a ring shape, the first insulating ring frame 332 is provided with a plurality of clamping grooves 3321 and a plurality of positioning grooves 3322, the plurality of clamping grooves 3321 and the plurality of positioning grooves 3322 are arranged in a staggered mode along the circumferential direction of the first insulating ring frame 332, the plurality of clamping grooves 3321 are respectively matched with the plurality of clamping hooks 311 in a one-to-one correspondence mode, and the plurality of positioning pieces 312 are respectively matched with the plurality of positioning grooves 3322 in a one-to-one correspondence mode.
A plurality of insulating insertion rods 331 are arranged at intervals along the circumferential direction of the first insulating ring frame 332, one end of each insulating insertion rod 331 is connected with the first insulating ring frame 332, the other end of each insulating insertion rod 331 is connected with the second insulating ring frame 333, the number of the insulating insertion rods 331 is equal to the number of the notches of the positioning slots 22 of the stator core 21, and therefore each insulating insertion rod 331 can be inserted into the corresponding notch of the stator slot 22.
Meanwhile, the plurality of insulating rods 331, the first insulating ring frame 332, and the second insulating ring frame 333 are formed as an integrated structure, so that they can be integrally installed on the stator assembly 200, and thus, the installation is convenient and the stability is high.
When the motor 100 is installed, the second insulating framework 32 is installed at one end of the stator core 21, the third insulating connecting frame 33 is inserted into the stator assembly 200 through the installation channel, the insulating insertion rod 331 of the third insulating connecting frame 33 is inserted into the notch of the stator slot 22, the positioning piece 312 of the first insulating framework 31 is inserted into the positioning slot 3322 of the first insulating ring frame 332, the hook 311 of the first insulating framework 31 is correspondingly clamped in the slot 3321 of the third insulating connecting frame 33, the hook head 3112 is connected with the opening of the slot 3321 in an abutting mode, the rotor 40 is installed in the installation channel, and the stator winding 30 is wound on the insulating slot paper outside the first insulating framework 31, the second insulating framework 32 and the stator teeth.
By arranging the insulating frame 300, when the motor rotates at a high speed, wind noise generated by high-speed rotation of the rotor can be effectively reduced, and the rotation noise of the motor is reduced; meanwhile, the safety risk of interphase short circuit of the motor can be effectively avoided; in addition, through the joint location cooperation on third insulating link 33 and the first insulating skeleton 31, under the great condition of motor 100 high-speed rotation or vibration, can effectively prevent insulating frame 300's removal, improved holistic stability.
Other configurations and operations of the washing machine according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. An insulating frame (300) of a motor for a washing machine, comprising:
a first insulating skeleton (31), wherein the first insulating skeleton (31) is suitable for being installed at one shaft end of a stator core (21) of the motor;
a second insulating skeleton (32), wherein the second insulating skeleton (32) is suitable for being installed at the other shaft end of the stator core (21);
the first insulation connecting frame (33) and the second insulation connecting frame (32) are connected through the third insulation connecting frame (33), the third insulation connecting frame (33) comprises a plurality of insulation inserting rods (331) which are annular and arranged at intervals, each insulation inserting rod (331) is suitable for being inserted into a notch of a stator slot (22) of the stator core (21), the third insulation connecting frame (33) further comprises a first insulation ring frame (332), the insulation inserting rods (331) are arranged at intervals along the circumferential direction of the first insulation ring frame (332), and one end of each insulation inserting rod (331) is connected with the first insulation ring frame (332).
2. The insulation frame (300) of the motor for the washing machine according to claim 1, wherein at least one of the first insulation frame (31) and the second insulation frame (32) is snap-coupled to the third insulation connection frame (33).
3. The insulation frame (300) of the motor for the washing machine according to claim 1, wherein one of the first insulation frame (31) and the third insulation connection frame (33) has a catching groove (3321), and the other of the first insulation frame (31) and the third insulation connection frame (33) has a catching hook (311) fitted in the catching groove (3321).
4. The insulation holder (300) of a motor for a washing machine according to claim 3, wherein the catching groove (3321) is formed on the third insulation connection holder (33) and forms a notch with an opening facing away from the insulation insert rod (331),
the clamping hook (311) is arranged at the end part of the first insulating framework (31) and comprises an extending part (3111) positioned on the outer side of the clamping groove (3321) and a hook head part (3112) extending towards the inside of the clamping groove (3321).
5. The insulation frame (300) for the motor of the washing machine as claimed in claim 3, wherein one of the first insulation frame (31) and the third insulation connection frame (33) has a positioning groove (3322), and the other of the first insulation frame (31) and the third insulation connection frame (33) has a positioning piece (312) fitted in the positioning groove (3322).
6. The insulation frame (300) of the motor for the washing machine according to claim 5, wherein the positioning groove (3322) is positioned on the third insulation connection frame (33) and extends along a length direction of the insulation insert rod (331).
7. The insulation holder (300) of the motor for the washing machine as claimed in claim 5, wherein the catching grooves (3321) and the positioning grooves (3322) comprise a plurality, respectively, and a plurality of catching grooves (3321) and a plurality of positioning grooves (3322) are formed on the first insulation ring holder (332) and are staggered in a circumferential direction thereof.
8. The insulation frame (300) of the motor for the washing machine as claimed in claim 7, wherein the first insulation ring frame (332) and the first insulation bobbin (31) are formed in a ring shape, at least a portion of the first insulation ring frame (332) is disposed inside the first insulation bobbin (31), and the positioning groove (3322) forms a positioning groove extending in an axial direction of the first insulation ring frame (332) and opened toward one side of the first insulation bobbin (31).
9. The insulation frame (300) of the motor for the washing machine according to claim 1, wherein the third insulation connection frame (33) further comprises a second insulation ring frame (333), the second insulation ring frame (333) is connected to the second insulation frame (32), a plurality of the insulation insertion rods (331) are arranged at intervals along a circumferential direction of the second insulation ring frame (333) and one end of each of the insulation insertion rods (331) is connected to the second insulation ring frame (333).
10. The insulating frame (300) of the motor for the washing machine according to any one of claims 1 to 9, wherein the first insulating frame (31), the second insulating frame (32) and the third insulating link frame (33) are all made of reinforced nylon, and the third insulating link frame (33) is an integrally molded piece.
11. A stator assembly (200), comprising:
a stator core (21), wherein the stator core (21) is provided with a plurality of stator teeth and a plurality of stator slots (22), the plurality of stator teeth are arranged at intervals along the circumferential direction of the stator core (21), and the stator slots (22) are defined between two adjacent stator teeth;
the stator winding is wound on the plurality of stator teeth; and
the insulation frame (300) of the motor for the washing machine according to any one of claims 1 to 10, wherein the first insulation frame (31) is installed at one axial end of a stator core (21) of the motor, the second insulation frame (32) is installed at the other axial end of the stator core (21), and the third insulation connection frame (33) is connected between the first insulation frame (31) and the second insulation frame (32),
the plurality of insulating insertion rods (331) correspond to the plurality of stator slots (22) one by one, and each insulating insertion rod (331) extends along the axial direction of the stator core (21) and is inserted into a notch of each stator slot (22).
12. The stator assembly (200) of claim 11, wherein at least one of the insulating plug rods (331) has a positioning protrusion (3311) on a side facing the stator teeth, the positioning protrusion (3311) extending along a length of the insulating plug rod (331) to be engaged with the stator teeth.
13. The stator assembly (200) of claim 12, characterized in that each of the insulating plug rods (331) has a cross-section forming a U-shape opening into the stator slot (22) and comprises two oppositely arranged limbs (3312),
the positioning protrusion (3311) is provided at a side of the limb (3312) facing the stator teeth to form a step slope (3313) at a side of the insulating insertion rod (331) facing the stator teeth.
14. The stator assembly (200) of claim 12 or 13, wherein the plurality of insulation bars (331) comprises a first insulation bar (331a) and a second insulation bar (331b), the positioning protrusion (3311) is disposed on the first insulation bar (331a), and at least one second insulation bar (331b) is disposed between any adjacent two first insulation bars (331 a).
15. An electric machine (100) characterized in that it comprises a stator assembly (200) according to any of claims 11-14.
16. A washing machine, characterized in that it comprises a motor (100) according to claim 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810621001.6A CN108832748B (en) | 2018-06-15 | 2018-06-15 | Insulating frame, stator module, motor, washing machine of motor for washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810621001.6A CN108832748B (en) | 2018-06-15 | 2018-06-15 | Insulating frame, stator module, motor, washing machine of motor for washing machine |
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| CN108832748A CN108832748A (en) | 2018-11-16 |
| CN108832748B true CN108832748B (en) | 2020-08-11 |
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| CN201810621001.6A Active CN108832748B (en) | 2018-06-15 | 2018-06-15 | Insulating frame, stator module, motor, washing machine of motor for washing machine |
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| CN110896253B (en) * | 2019-10-08 | 2022-02-11 | 苏州德能电机股份有限公司 | Quick heat dissipation motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101394116A (en) * | 2007-09-21 | 2009-03-25 | 株式会社丰田自动织机 | Interphase insulating sheet of rotating electric machine, method for manufacturing interphase insulating sheet, and electric compressor |
| CN205029455U (en) * | 2015-07-23 | 2016-02-10 | 珠海凌达压缩机有限公司 | Interphase insulation of motor stator and motor |
| CN206060394U (en) * | 2016-10-10 | 2017-03-29 | 常州朗奇威电器有限公司 | Stator |
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2018
- 2018-06-15 CN CN201810621001.6A patent/CN108832748B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101394116A (en) * | 2007-09-21 | 2009-03-25 | 株式会社丰田自动织机 | Interphase insulating sheet of rotating electric machine, method for manufacturing interphase insulating sheet, and electric compressor |
| CN205029455U (en) * | 2015-07-23 | 2016-02-10 | 珠海凌达压缩机有限公司 | Interphase insulation of motor stator and motor |
| CN206060394U (en) * | 2016-10-10 | 2017-03-29 | 常州朗奇威电器有限公司 | Stator |
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Effective date of registration: 20190805 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Applicant after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Applicant before: Wuxi Xiaotianer Co., Ltd. |
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