TWM288736U - Permanent-magnet electric machine - Google Patents

Description

M288736 VIII. New description: [New technical field] This creation involves a motor product 'especially related to a permanent magnet motor [previous technology] brilliant, the well-known hydromagnetic machine product contains only a few in each magnetic pole. A large number of cogging and coil elements make the stepped sinusoidal magnetic chord excessively coarse, containing a large number of spectral waves, resulting in vibration and uneven torque, noise pollution and electromagnetic interference, and high temperature rise energy consumption. Since the slot occupied by each coil in the motor is small, after the insulation material volume and the proper angle space are deducted, the ruled groove full rate is low, resulting in a low iron-steel surround ratio. In addition, the core surrounded by each coil is a cog-shaped comb-like structure instead of a solid core, so that each length of the coil has a length that is invalid, and the coils that make up a magnetic pole are not concentric. The fully coupled relationship of the 匝 chain is instead staggered by a tooth (four), resulting in a low turnaround of copper _ iron: this structure deviates from the structural optimization principle of the transformer, limiting the loss of iron loss, the reduction of copper and the improvement of efficiency; The winding structure of the product is complex, and it is extremely difficult to manufacture and the manufacturing cost is high. The brushes on the rotor of the motor... permanent magnets, claw poles, magnetic isolation sleeves and other components not only limit the movement, but also support you ^ ^ ^, wave ": The improvement of the power balance and the cow's solidity index'·In order to overcome the problem, the number of teeth of the rotor needs to avoid some bad ratios, and the winding pattern of the principle of geometric similarity of different sizes is difficult to follow [new content] Standardized product design, etc. The purpose of this creation is to provide "the kind of Yong "machine, which (4) solves the lack of the existing technology 99037.doc M288736, Wei Lei > _ compared to the iron-steel, % city has a better air gap sinusoidal magnetic dense wave, smaller Harmonic, advantages. The copper-iron surround ratio, the winding structure is simple, the manufacturing cost is low, etc., and the above-mentioned purpose is achieved by the following technical contents. The Yong machine consists of a coaxially assembled stator and rotor. The rotor is made of a multi-layered Shishi steel sheet with rotor teeth:: turn: groove. The stator has at least two permanent magnets. Pressing body, permanent magnet and multi-layer Shishi steel sheet laminated two fathers: Arrangement 'Each multi-layer Shishi steel sheet has two sub-toothes on the laminated body, and there is a phase shifting groove between the two dice ω, phase shifting The armature coil is arranged in the slot. The number of slots in the stator is the same as the number of phases. The number of phase shifting slots on the stator can also be the same as the number of phases and multiples. The armature coil is placed on two adjacent layers of Shixia steel sheet laminated. In the second phase shifting groove, one armature coil surrounds two stator teeth and one permanent magnet two armature coils are arranged in one phase shifting groove, and the armature coil ring has two bottoms of the groove bottom yoke. The middle section of the tooth end edge to the axis::::: the distance from the outer part of the middle end of the tooth end to the axis, the distance between the stator tooth and the middle of the image to the axis is smaller than the middle of the tooth edge: The distance between the stator and the rotor tooth profile can also be concentric: the arc. The number of teeth on the rotor is equal to the phase shifting groove on the stator. The number of teeth in the number of phases can also be the number of phase shifting channels on the stator plus the number of phase shifting t divided by the number of motor phases. The improvement effect of this creation lies in the fact that a pair of ancient and ancient With the concentrating structure of the gutter structure, each stator tooth with a hydro-magnet is an independent phase, and its cogging groove can realize the gas between the rotor (5) of the stator shape of the specific shape described in the present creation. The sinusoidal magnetic dense wave is formed in the gap, which reduces the spectral wave. 99037.doc M288736 :: Two lowering, reducing the temperature rise, improving the vibration and the unsmooth torque, and improving the efficiency. Each armature coil is an independent one. Phase, each

The phase shifting slots are equivalent to the sum of several small slots in the existing motor, saving the wire 'reduced copper loss. The space A of the groove, the proportion of the space occupied by the insulating material and the remaining corners is significantly reduced, the degree of freedom of the welt operation is improved, and it is more convenient to deal with problems such as disorder of the wire, twisting and slipping, strong straight and strong bending, etc. It may be short, and the copper wire is tightly packed, so that the duty ratio of the core and the duty ratio of the copper wire are significantly increased. The highest iron, copper, copper-iron surround ratio is achieved, and the copper loss and iron loss are reduced to a low level. degree. Because the rotor of the present invention has neither windings nor permanent magnets, the structure is more non-excited, brush slip ring, claw pole, magnetic isolation sleeve, etc., so the manufacturing cost is low, and the rotor has excellent dynamic balance performance and firmness. Degree, smooth operation and long life. As shown in the figure, the rotor is 7 teeth, which can be made into a 6-phase motor or a 3-phase motor as needed. This creation is convenient and convenient. 'The magnetization is sufficient, the assembly is easy, the magnetic performance is high, the space utilization rate is high, and the damping ring is easy to set, especially suitable for high-performance permanent magnet materials. The outstanding effect of this creation in the generator state is that the equivalent pole log p is much easier than the permanent magnet rotor or the excitation rotor generator of similar scale, which can reach higher frequency at slower speed and can output higher voltage. And large electric power; the inductive reactance of the armature winding can achieve the voltage regulation function, and the regulated power supply is maintained for the same load when the speed changes greatly; the power level of the multi-phase motor to the rectifier can be reduced; the starting torque is small and smooth Easy to wait. The above-mentioned effect of the creation as a generator can make this creation widely used in motor vehicles as a lamp generator, wind turbine, and in these cases, the speed of the power machine is low and varies, and the application can solve the existing Insufficient generator performance 99037.doc M288736 causes the lamp to be dark and reduce „ 甩 bottle can be difficult to solve for a long time. [Embodiment] The permanent magnet of this creation can be used for money (4), dip gold or copper riding. Permanent magnet materials such as iron and ferrite, the outer T/7t u > 1U丨 and Nicholas 7. The original steel sheet of this creation can be ferrite, Bomohe Washa, private iron, etc. Other soft magnetic materials. The permanent magnet motor of this creation, including the coaxially assembled stator and rotor, can be the outer stator and inner rotor structure, 3 broadcast. u again with the inner stator and outer rotor structure, or the shaft The air gap structure is formed by lamination of a layer of Shixia steel sheets with rotor teeth and rotor slots, and has two hydromagnets and at least two "夕θ矽 steel laminating bodies, multi-layer steel, s ^ ^ I basket is a scorpion, water The body and the eve layer of the steel sheet are stacked, and the & body is arranged in tandem. The mother block has a plurality of stator teeth on the laminated body of the steel sheet, and there is a η m between the two stator teeth. The phase shifting groove is provided with a coil inside the phase shifting groove. The number of phase shifting slots on the stator is the same as the number of phases. The number of phase shifting grooves on the stator can also be compared with the multiple of the phase number., ^ 々u armature coils are arranged in the phase shifting grooves of the two layers of the dust, and the armature coils surround the two = teeth and - blocks The permanent magnet 'this structure is often referred to as a ring gear winding. Also in the phase shifting trough, the armature coil surrounds the phased yoke bottom yoke. This structure is called “冉(四)Euer winding. The rotor 乂, the mid-section of the edge of the knuckle to the vehicle is greater than the Qiu Bagua distance. The distance from the middle of the tooth edge to the center of the shaft. The distance from the middle of the edge of the stator tooth yw舳 to the axis is smaller than the distance between the middle of the end of the tooth end, s #, the distance of the knife 竿 by ~, these two shapes ^冉 is a sinusoidal shape 10. The tooth end curve of the stator and rotor tooth shape can also be the heart of the nil heart (4). The number of teeth on the rotor is equal to the number of the stator upshift 99037.doc M288736. The number of teeth on the rotor is also It can be equal to ~ number plus the number of phase shifting slots divided by the number of motor phases (4). The following sections describe the specific design of this creation: (1) Figure 1 shows a six-phase motor, then a motor, where Parameter j: 4 ♦ 'Become a three-phase coefficient kp=l, 2 3 4 m-3, 2.. 3: octave number Z1=2Zm=12, 6: number of rotor teeth m pm, 5·疋子Ρ令7 , 8: pole distance mechanical angle 3; =,: equivalent pole logarithm Ζ. 3,9 · pole distance electrical angle af seven = 360., ίο : tooth mechanical angle ^^=25.72 18〇,12 Mechanical angle φ relative to the phase shifting groove = Ink tank ·· 6〇 electrical angle.

2欣---L,11 ··tooth angle 8.57, and 13 ·• Move according to this data list to make the stator and rotor, the phasor diagram of the six-phase input or output voltage Ua, Ub, ue, ud, Ue, Uf Figure 2 shows the phasor diagram of the output/input voltage HUc after the combined output/input terminal becomes three-phase. The equivalent pole pair of the motor is 7, which is equivalent to the existing 14-pole synchronous motor. When inputting 5 Hz three-phase current, the synchronous speed can be obtained as ni=428 6 rpm; when driven by 3000 rpm, it can be The three-phase power of the frequency (b) Hz is emitted. 'If the pedigree coefficient kp=2, 3, 4, etc.' can be obtained from the derivative series of the motor p=14, 21, 28, and the library -) mw] n2 -214.3 rpm ? n3=142.9 rpm n4=107.1rPm' f2=700 Hz, f3 = 1050 Hz, and f4=1400 Hz. (2) Figure 4 shows another three-phase motor, kp=2, where the parameters are: m=3, U二卜kp=2, 4, 6, Zm=6, Zl = 12, ζ2=8, ρ= 8, τ = 45. , Tc = 36 〇. , α = 22_50, ae=180°, 99037.doc -10- M288736

Figure 4 shows the schematic diagram of the stator and rotor of the motor. The three-phase wheel/wheel is A1+A2' Bi + b2, Ci + C2〇p, which is the 16-pole synchronous motor, and the synchronous speed is 375 rpm. At 3GGG rpm, the power generation frequency is 4 (8) hearts. 2 cases kp are not odd. When taking kp=4,6, ··· · ·., you can get the series of products such as calving 6, 2'. In the same series, with the increase of kp, τ, 、, + 匕 are reduced, but Tc, ac, and 叭 are fixed. Compared with Example 1, different series of horns are different, but any The ~ in the series are all unchanged. In Example 2, although a!A2, BA, and CiC2 are each connected in series to three outputs, they are not combined with each other. (3) Figure 5 shows the unfolding of the stator and rotor of the two-phase motor. The two-phase output/input terminal is Ai + A2, Bi+B, where the parameters are: m=2, km=2, kp=l, 2 3, ...···,Ζ^8, Ζ2=8=ρ,τ = 72. , %=360. , α = 36 〇, φ = 180, and (j) e = 9 0. . The synchronous speed of the mechanical frequency drive is 600. The frequency of the power generation is 250 Hz. The significance of the one-phase motor lies in the application of a large number of three-phase-free electric appliances, such as household appliances, simple electric tools, etc. The capacitor split phase can be driven. (4) Figure 6 shows a single-phase motor. When the phase number m = 1, the multiphase motor degenerates into a single phase motor. If the phase shifting groove is set, there is φ corpse 18 〇. . But due to 18 baht. The phase difference is very easy to implement, only the winding terminals are connected in reverse, so this example does not have a phase shifting groove, but the welt groove still has to be, where the parameter ·· m=1, km=2 ' kp=l,2 , 3, , Zm=2, Zi = 4, Z2=Zm=2=p, τ=180. , a=90° ’ and. 99037.doc M288736 The armature coils in the embodiments of the present invention can be wound around the bottom yoke of the phase shifting groove as shown by Al and a2 in the figure to form a yoke winding; or can be wound around two stators like The magnetic poles formed by the teeth and a permanent magnet form a bad-toothed winding, and only one of the two methods is selected. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a multiphase combined three-phase motor; Fig. 2 is a six-phase phasor diagram;

Figure 4 is a schematic diagram of the expansion of the stator and rotor of the double-pole three-phase motor. Figure 5 is a schematic diagram of the stator and rotor of the two-phase motor; Figure 6 is a schematic diagram of the structure of the single-phase motor; Figure 7 is a schematic diagram of the structure of the inner stator/outer rotor; Schematic diagram of the gap structure; and FIG. 9 is a schematic view of the three-dimensional structure of the permanent magnet and the damping ring. [Main component symbol description]

2 4 6 7 9 Stator Rotor Rotor tooth Rotor slot Permanent magnet Multi-layer 矽 steel lamination stack with Ni-ring Stator tooth Phase shifting groove 99037.doc M288736

10 sinusoidal tooth 11 sinusoidal air gap 12 electrode coil 13 phase magnetic pole 14 groove bottom part 15 outer stator 16 inner rotor 17 inner stator 18 outer rotor 19 radial air gap 20 axial air gap τ pole distance mechanical angle a stator teeth, Rotor tooth mechanical angle Φ phase shift groove mechanical angle a, b, c, d, e, f, A, B, C, A, Bi, output / input terminals C1, A2, B2, C2 ua, ub, uc, Ud, ue, voltage phasor Uf, UA, UB, uc 99037.doc -13 -

Claims (1)

M288736 IX. Patent application range l The motor, including the stator and rotor of the coaxial assembly, the multi-layered dream steel sheet with the rotor* and the rotor groove, is characterized in that the stator has at least two permanent magnets μ Tian Dong Xi two pieces of multi-layer broken steel sheet "compressed body, permanent magnet and multi-layer steel sheet are stacked A, the body is replaced by the body, each piece of 矽 layer steel sheet has two stator teeth ^ ^ ^ ~ 疋 thousand There is a private phase between the teeth, and an armature coil is arranged in the phase shifting groove. Number of phase shifting grooves on the stator Number of phase shifting grooves on the stator 2. The permanent magnet motor of the request item is characterized by the same number of phases. 3. The permanent magnet motor of claim 1, which is characterized by the same multiple of the number of phases. 4. = permanent magnet motor of claim 1, 2 or 3, characterized in that the armature coil is arranged in two adjacent layers. In the phase shifting groove of the Shixi steel sheet laminated body, an armature coil surrounds two stator teeth and a permanent magnet. The Xun or 3 permanent magnet motor is characterized by: “one armature line in one phase shifting slot” The inner 'electro-planting coil surrounds the bottom of the phase shifting groove. 6·If the request is The permanent magnet motor has the characteristics aa, the tooth end edge of the rotor tooth shape, and the distance from the middle of the 彖 to the axis is greater than the distance of the part of the core other than the middle end of the tooth edge. 7. The permanent magnet motor of the request item , The distance between the tooth end edge of the tooth shape and the middle portion of the cymbal to the axis is smaller than the distance from the outer portion of the middle end of the tooth end to the axis. 8. The permanent magnet motor of the request is characterized by: stator and rotor tooth shape 90937 .doc M288736 The tooth end curve is a concentric circle centered on the axis 9 · For a permanent magnet motor with a resolution of 1, 6, 7 or 8, the number of teeth is equal to the number of phase shifting grooves on the stator. ^ "月求The permanent magnet motor of item 1, 6, 7 or 8 has a number of turns equal to the number of phase shifting grooves on the stator plus the number of machine phases. Arc is characterized in that the rotor is characterized by an upward phase shift on the rotor. Number of slots divided by electricity 99037.doc