CN201490850U

CN201490850U - Single-phase series motor

Info

Publication number: CN201490850U
Application number: CN2009201850826U
Authority: CN
Inventors: 秦桦
Original assignee: Jiangsu Midea Chunhua Electric Appliances Co Ltd
Current assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2009-05-16
Filing date: 2009-05-16
Publication date: 2010-05-26
Anticipated expiration: 2019-05-16

Abstract

The utility model relates to a single-phase series motor which comprises a wire slot and a wire hook that is electrically connected on a commutator segment; the end part of the coil in the wire slot is hooked on the wire hook; an initial wire hook when starting to wind wire is taken as a first wire hook; the coil with the head end hooked on the first wire hook and the coil with the head end hooked on a last wire hook are distributed in the same wire slot; the coil with the head end hooked on an N+1 wire hook and the coil with the head end hooked on an N+2 wire hook are distributed in the same wire slot, wherein N is a positive odd number; and when the rated voltage of the motor is 10 to 127 V and 220 to 240 V, the coil with the head end hooked on an N wire hook and the coil with the head end hooked on the N+1 wire hook have the corresponding coil proportions of 3:1 and 2:1. By adopting the winding mode, the reactance electrical potential of a commutation element of the rotor winding can be reduced, the commutation spark of the high-speed series motor can be improved effectively, and the performance of the motor can be stabilized.

Description

Single phase series motivated motor

Technical field

The utility model relates to a kind of single phase series motivated motor.

Background technology

The single phase alternating current (A.C.) series excited machine is exactly a kind of motor of stator winding and rotor windings in series, and it belongs to universal motor, so be widely used on the small household appliances such as electric tool, domestic vacuum cleaners.Series excited machine generally comprises rotor assembly, described rotor assembly comprises armature spindle, is contained in commutator and rotor core on the described armature spindle, have a plurality of circumferential winding slots on the wall of described rotor core, be wound with coil in the described winding slot, have a plurality of commutator segments on the described commutator, be respectively arranged with the line hook that is connected with commutator segment on described each commutator segment, the overhang in the described winding slot is hooked on the described line hook.The winding mode of using always in the series excited machine as shown in Figure 4, start line hook when beginning to wind the line is the 1st line hook, head end is hooked in the 1st line hook and head end is hooked in the pairing coil distribution of the 2nd line hook in same winding slot, head end is hooked in the 3rd line hook and head end is hooked in the pairing coil distribution of the 4th line hook in same winding slot, by that analogy.And the pairing coil ratio of the coil on adjacent two hooks is 1: 1.

This coil is because the coil number on every hook is the same, and very convenient when coiling, working (machining) efficiency is very high, so this winding mode is adopted by a lot of series excited machines.When but the series excited machine that adopts this winding mode was worked under high rotating speed operating mode, commutation spark is difficult to control, and was bigger to motor performance and reliability effect.If commutation spark control is bad, it is very short to become the useful life of motor, and safety in utilization hidden danger is arranged simultaneously, thereby the normal use of the electrical equipment of this motor is installed in influence.

The utility model content

The purpose of this utility model provides the unidirectional series excited machine of a kind of stable performance, reliability long service life.

For achieving the above object, the technical solution adopted in the utility model is: a kind of single phase series motivated motor, comprise rotor assembly, described rotor assembly comprises armature spindle, is contained in commutator and rotor core on the described armature spindle, have a plurality of circumferential winding slots on the wall of described rotor core, be wound with coil in the described winding slot, have a plurality of commutator segments on the described commutator, be respectively arranged with the line hook that is electrically connected with commutator segment on described each commutator segment, the overhang in the described winding slot is hooked on the described line hook; Start line hook when beginning to wind the line is the 1st line hook, head end is hooked in coil on the 1st line hook and head end and is hooked in coil distribution on last line hook in same winding slot, and head end is hooked in N+1 line hook and head end is hooked in the pairing coil distribution of N+2 line hook in same winding slot; In the motor rated voltage is under the situation of 100～127V, it is 3: 1 that head end is hooked in the pairing coil ratio of coil that coil on the N line hook and head end be hooked on the N+1 line hook, in the motor rated voltage is under the situation of 220～240V, and it is 2: 1 that head end is hooked in the pairing coil ratio of coil that coil on the N line hook and head end be hooked on the N+1 line hook; Wherein, N is and is positive odd number.

The utility model compared with prior art has following advantage: conventional winding mode, and in motor rotation when commutation,, identical with groove two element of winding limit numbers that commutate, reactance potential is bigger, makes that commutation spark is difficult to suppress under the high rotating speed operating mode; The utility model method for winding is by after dividing the groove coiling, and is proportional with groove two element of winding limits of commutating, and can reduce reactance potential, effectively improves the motor commutation spark, improves its stability and prolongs reliable life.By adopting this novel winding mode, reduce rotor winding commutation element reactance potential, effectively improve high speed series excited machine commutation spark, make performance more stable.Be used on the household electrical appliance motor that is installed in such as dust catcher, prolong its working life, reliability is more stable

Description of drawings

Accompanying drawing 1 is the structural representation of series excited machine of the present utility model;

Accompanying drawing 2 is the enlarged drawing at the I place of accompanying drawing 1;

Accompanying drawing 3 is the winding mode schematic diagram of series excited machine of the present utility model;

Accompanying drawing 4 is the winding mode schematic diagram of the series excited machine in the background technology;

Wherein: 1, armature spindle; 2, bearing; 3, commutator; 4, upper head plate; 5, rotor core; 6, bottom plate; 7, E type back-up ring; 8, coil; 9, insulating varnish; 10, insulating paper; 11, slot wedge; 12, winding slot; 13, commutator segment; 14, line hook.

Embodiment

Further set forth concrete structure of the present utility model below in conjunction with accompanying drawing.

Single phase series motivated motor as shown in Figure 1, 2, this motor comprises rotor assembly, this rotor assembly comprises armature spindle 1, is contained in commutator 3 and rotor core 5 on the armature spindle 1.The two ends of armature spindle 1 are provided with bearing 2.One side of bearing 2 is provided with E type back-up ring 7.Be positioned on the wall of rotor core 5 of lower end and have a plurality of circumferential winding slots 12.The upper and lower end parts of rotor core 5 is respectively equipped with upper head plate 4 and bottom plate 6.Winding slot 12 inwalls are provided with rotor insulation paper 10.Winding slot 12 is wound with coil 8, and the outside of coil 8 includes insulating varnish 9.The notch of winding slot 12 is provided with slot wedge 11.Have a plurality of commutator segments 13 on the commutator 3, be respectively arranged with the line hook 14 that is electrically connected with commutator segment 13 on each commutator segment 13, on the online hook 14 of end hook of the coil 8 in the winding slot 12.

Describe in detail below and how to wind the line in this series excited machine: the start line hook when beginning to wind the line is the 1st line hook, head end is hooked in coil and head end on the 1st line hook and is hooked in coil distribution (this relative conventional coiling in same winding slot on last line hook, initial hook is striden preceding 1 hook), head end is hooked in N+1 line hook and head end is hooked in the pairing coil distribution of N+2 line hook in same winding slot, and N herein is a positive odd number.Be specially: the 1st line and last line hook are positioned at a winding slot, and the 2nd line hook and the 3rd line hook are positioned at a winding slot, and the 4th line hook and the 5th line hook are positioned at a winding slot, by that analogy.Under this kind winding mode, when the motor rated voltage is under the situation of 100～127V, it is 3: 1 that head end is hooked in the pairing coil ratio of coil that coil on the N line hook and head end be hooked on the N+1 line hook, when being 15 circles as the 1st line hook, the 2nd line hook is 5 circles very, the 3rd line hook is again 15 circles, and the 4th line hook is again 5 circles, by that analogy.In the motor rated voltage is under the situation of 220～240V, and it is 2: 1 that head end is hooked in the pairing coil ratio of coil that coil on the N line hook and head end be hooked on the N+1 line hook, and N is and is positive odd number; When being 10 circles as the 1st line hook, the 2nd line hook is 5 circles very, and the 3rd line hook is again 10 circles, and the 4th line hook is again 5 circles, by that analogy.Winding mode can be referring to schematic diagram shown in Figure 3.

As shown in the table, its aspect of performance of motor that adopts this kind winding mode to make is more stable, and commutation spark also can be well controlled.

Performance comparison

Winding mode	Voltage (V)	Electric current (A)	Power (W)	Air quantity (m^3/min)	Vacuum degree (kPa)	Efficient (%)	Noise (dBA)	Temperature rise (K)	Durable (h)	Life-span (h)
Winding mode	Voltage (V)	Electric current (A)	Power (W)	Air quantity (m^3/min)	Vacuum degree (kPa)	Efficient (%)	Noise (dBA)	Temperature rise (K)	Durable (h)	Life-span (h)	Conventional winding	120.4	11.9	1440.3	3.1	31.7	41.2	100.4	86.9/89.5	22.0	60.0
Separate winding	120.1	12.2	1444.7	3.2	32.0	42.6	100.7	60/75.1	48.0	865.0	Conventional winding	120.4	11.9	1440.3	3.1	31.7	41.2	100.4	86.9/89.5	22.0	60.0

Above execution mode only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection range of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection range of the present utility model.

Claims

1. single phase series motivated motor, comprise rotor assembly, described rotor assembly comprises armature spindle, is contained in commutator and rotor core on the described armature spindle, have a plurality of circumferential winding slots on the wall of described rotor core, be wound with coil in the described winding slot, have a plurality of commutator segments on the described commutator, be respectively arranged with the line hook that is electrically connected with commutator segment on described each commutator segment, the overhang in the described winding slot is hooked on the described line hook; It is characterized in that: the start line hook when beginning to wind the line is the 1st line hook, head end is hooked in coil on the 1st line hook and head end and is hooked in coil distribution on last line hook in same winding slot, and head end is hooked in N+1 line hook and head end is hooked in the pairing coil distribution of N+2 line hook in same winding slot; In the motor rated voltage is under the situation of 100～127V, it is 3: 1 that head end is hooked in the pairing coil ratio of coil that coil on the N line hook and head end be hooked on the N+1 line hook, in the motor rated voltage is under the situation of 220～240V, and it is 2: 1 that head end is hooked in the pairing coil ratio of coil that coil on the N line hook and head end be hooked on the N+1 line hook; Wherein, N is and is positive odd number.