Non-overlapping winding double-side AC linear motor

A linear motor, non-overlapping technology, applied in the shape/style/structure of winding conductors, electrical components, electromechanical devices, etc., can solve the problem that cannot be applied to long strokes, and the two-coil side embedding method cannot be used for segmented manufacturing, etc. problems, to achieve the effect of simple structure, easy insulation, weakening vibration and noise

Active Publication Date: 2018-08-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the primary winding of the existing double-sided flat-shaped three-phase linear induction motor cannot be manufactured in sections by placing two coil sides in the same slot, and cannot be applied to long-stroke occasions, thereby providing Bilateral AC linear motor with non-overlapping windings

Method used

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  • Non-overlapping winding double-side AC linear motor
  • Non-overlapping winding double-side AC linear motor
  • Non-overlapping winding double-side AC linear motor

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specific Embodiment approach 1

[0039] Specific implementation mode one: combine figure 1 with figure 2 Describe this embodiment in detail. The bilateral AC linear motor with non-overlapping windings described in this embodiment includes a bilateral primary 1 and a secondary 2. There is an air gap between the bilateral primary 1 and secondary 2, and each primary includes a primary iron core 1- 1 and primary winding 1-2;

[0040]Grooves are made on the air gap side surface of each primary core 1-1 along the transverse direction, forming large teeth 1-1-1, shallow grooves 1-1-3, small teeth 1-1-2, and deep grooves 1-1- 4. Arranged along the direction of movement, each two adjacent large teeth 1-1-1 include 5 slots and 4 small teeth 1-1-2, the slots and small teeth 1-1-2 are arranged alternately, and each The two adjacent grooves of a large tooth 1-1-1 are shallow grooves 1-1-3, the other grooves are deep grooves 1-1-4, and the depth of deep groove 1-1-4 is shallow groove 1-1 -2 times the depth of the groo...

specific Embodiment approach 2

[0043] Specific implementation mode two: combination image 3 Describe this embodiment in detail. The bilateral AC linear motor with non-overlapping windings described in this embodiment includes a bilateral primary 1 and a secondary 2. There is an air gap between the bilateral primary 1 and secondary 2, and each primary includes a primary iron core 1- 1 and primary winding 1-2;

[0044] Slots are made on the air gap side surface of each primary core 1-1 along the transverse direction, and the small teeth 1-1-2, slots 1-1-5, and large teeth 1-1-1 formed are arranged along the moving direction;

[0045] Large teeth 1-1-1 pitch t s2 and polar distance τ p satisfies the relation 3t s2 =4τ p , large tooth 1-1-1 tooth width b s2 , small teeth 1-1-2 pitch t s1 , small tooth 1-1-2 tooth width b s1 satisfies the relation b s2 = 2t s1 +b s1 ;

[0046] The primary winding 1-2 is a concentrated full-pitch winding. There is a coil wound on each large tooth 1-1-1. The coils on t...

specific Embodiment approach 3

[0047] Specific implementation mode three: combination Figure 4 Describe this embodiment in detail. The bilateral AC linear motor with non-overlapping windings described in this embodiment includes a bilateral primary 1 and a secondary 2. There is an air gap between the bilateral primary 1 and secondary 2, and each primary includes a primary iron core 1- 1 and primary winding 1-2;

[0048] Slots are made on the air gap side surface of each primary core 1-1 along the transverse direction to form teeth 1-1-6;

[0049] Tooth pitch t s and polar distance τ p satisfies the relation 3t s = 2τ p ;

[0050] The primary winding 1-2 is a concentrated winding with fractional slots, a coil is wound on each tooth 1-1-6, the coils on adjacent teeth 1-1-6 belong to different phases, and the windings of the corresponding phase coils on both sides of the secondary 2 On the contrary, all the coils on the same side of the secondary 2 are connected into a three-phase symmetrical winding, a...

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Abstract

The invention discloses a non-overlapping winding double-side AC linear motor, belongs to the field of motors, and aims at solving problems that a primary winding of a conventional double-side flat-shaped three-phase linear induction motor cannot be manufactured in a segmented manner because the primary winding of a conventional double-side flat-shaped three-phase linear induction motor employs amode that two coils are embedded into the same groove, and the primary winding cannot be used for a long-travel occasion. The linear motor comprises primary coils two sides and a secondary coil, wherein there is a gap between the double-side primary coil and the secondary coil. The primary coil at each side comprises a primary iron core and a primary winding. The surface, located at the side of the gap, of each primary iron core is provided with slot in a lateral direction. The formed big teeth, shallow grooves, small teeth and deep grooves are arranged in a movement direction. The spacing ts2of the big teeth and the polar distance Tau(p) meet a relation: 3*ts2=4*Tau(p). The width of the big teeth bs2, the spacing ts1 of the small teeth and the width of the small teeth bs1 meet the relation: bs2=3*ts1+bs1. The motor reduces the low-order harmonics of the magnetomotive force and electromotive force, shortens the end parts of the windings, improves the efficiency and reliability, facilitates the segmentation at an initial stage, and is suitable for the high-speed, high-acceleration and large-output-thrust occasions.

Description

technical field [0001] The invention relates to a double-sided linear motor with non-overlapping windings, belonging to the field of motors. Background technique [0002] The structure of the existing two-sided flat three-phase linear induction motor is as follows: Figure 7 As shown, two coil sides are embedded in each slot of the motor (empty slots or half slots will appear near the end of the core), and the coil pitch is equal to the pole pitch. This winding structure is called integer slot double-layer distributed winding. The main problem of this type of winding is that the ends of the winding coils of each phase exposed outside the core teeth are relatively long, and the winding coils of each phase cross each other, which not only wastes materials, increases copper loss, but also makes the insulation between the windings of each phase The process becomes complicated, which increases the manufacturing cost and reduces the reliability; at the same time, because the ends ...

Claims

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Application Information

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IPC IPC(8): H02K41/025H02K1/14H02K3/16H02K3/20
CPCH02K1/14H02K3/16H02K3/20H02K41/025H02K2213/03
Inventor 寇宝泉黄昌闯葛庆稳
Owner HARBIN INST OF TECH
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