CN201682333U - Miniature electric motor - Google Patents

Abstract

The utility model relates to a miniature electric motor, which comprises a permanent-magnetic rotor, a rotor shaft, a rotor shaft support frame, an iron core, an iron core, an iron core support frame, a coil, a coil support frame, a case, a case upper cover, a reduction box, an output shaft and a post head, wherein the flat plane parts of the iron core and the iron core in the coil are not positioned in the same plane as the flat plane part outside the coil. The utility model has the advantages of simple and reasonable structure, small integral diameter, stable rotating speed, low manufacture cost and the like.

Description

A kind of micromotor

Technical field

The utility model relates to a kind of micromotor.

Background technology

At present, general micromotor, rotor and coil are concentric structures, what have is not that the outer iron core flat horizontal surface of iron core flat horizontal surface part in concentric structure but the coil and coil is partly at a plane (as the quartz clock movement electric machine structure), these structural limitations the diameter of motor, make very little that its diameter can not do.

Under the condition that requires minor diameter motor occasion, just require to change some structure, the utility model is exactly also improved according to proposing in this case.

Summary of the invention

The purpose of this utility model be to provide a kind of simple and reasonable, integral diameter is little, stabilization of speed, motor that cost is low.

The purpose of this utility model is to realize like this, this motor comprises p-m rotor, armature spindle, armature spindle support, iron core, iron core support, coil, coil brace, shell, outer casing upper cover, reduction box, output shaft, binding post, and the outer flat horizontal surface part of described iron core and iron core flat horizontal surface part in coil and coil is not or not a plane.

Described two iron cores are respectively from coil is inserted at two ends, and two iron cores expose the part ring outer wall bending along the line coil outside, make iron core flat horizontal surface part in the coil and the iron core flat horizontal surface outside the coil partly not on a plane.

The utility model is owing to adopt said structure to have the following advantages.

1, motor described in the utility model can be done the movement of timer, can with the patent No. be 03251614.2 a kind ofly have the motor of rotation indicator to cooperate, can be contained in simultaneously the patent No. and be in the movable fuse in a kind of combination button of 200520028549.8, can make the patent No. 200520028549.8 described combination button simple and stable more like this.

2, the utility model also has simple and reasonable, advantage such as integral diameter is little, stabilization of speed, cost are low.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram.

Fig. 2 is the utility model A-A profile

Fig. 3,4 is the structural formula intention of the utility model embodiment 2.

Embodiment

This motor comprises p-m rotor 1, armature spindle 2, armature spindle support 3, iron core 4, iron core 5, iron core support 6, coil 7, coil brace 8, shell 9, outer casing upper cover 10, reduction box 11, output shaft 12, binding post 13 is characterized in that: the outer flat horizontal surface of described iron core 4 and the iron core 5 flat horizontal surface part in coil 7 and coil 7 is not partly on a plane.

Embodiment 1

The utility model is as shown in Figure 1, 2: iron core has two to be respectively iron core 4 and iron core 5, iron core 4 and iron core 5 insert the coil 7 from two ends respectively, iron core 4 and 5 is exposed at coil 7 part outward along coil 7 outer wall bendings, make the outer iron core flat horizontal surface part of interior iron core flat horizontal surface part of coil and coil not on a plane, the iron core 4 of these two bendings and iron core 5 constitute the Drive Structure of rotor rotation.Porose on the armature spindle support 3 armature spindle 2 also is a worm screw respectively to 14 location of the worm-gear toothing structure in armature spindle 2 and the gear box, and it and the interior worm gear of gear box cooperate, and integral installation is (trapezoidal cylinder) in shell 9.Output shaft 12 passes outer casing upper cover 10 and externally exports.Be connected after the line of coil 7 is drawn on the binding post 13, when coil 7 during by the alternating current electricity, in iron core 4, iron core 5, produce the magnetic flux of alternate, effect lower rotor part 1, armature spindle 2 at the magnetic flux of alternate rotate, worm gear in armature spindle 2 (worm screw) and the gear box, gear rotate, and output shaft 12 is externally exported.This motor can drive with AC power, and also available energy alternately produces the power drives of generating positive and negative voltage wave mode.

Embodiment 2

As shown in Figure 3: the another kind of example structure of iron core 4 and iron core 5, this structure is with iron core 4, iron core 5 is made the internal tooth round, iron core 4 and iron core 5 insert from coil 7 both sides respectively when mounted, iron core 4 and iron core 5 expose part outside coil 7 along coil 7 outer wall bendings, make the outer iron core flat horizontal surface of interior iron core flat horizontal surface of coil and coil not on a plane, has one at least through above the coil flat horizontal surface, constitute the rotor driven structure with another iron core, iron core 4, the tooth of iron core 5 staggers mutually, non-magnetizer 14 is placed in the middle of the plane of iron core 4 and iron core 5, makes the plane of iron core 4 and iron core 5 at regular intervals.Rotor 1, armature spindle 2 are placed in the middle of iron core 4, iron core 5 endoporus, when coil 7 during by the alternating current electricity, produce the magnetic flux of alternate in iron core 4, iron core 5, rotate at effect lower rotor part 1, the armature spindle 2 of the magnetic flux of alternate.

Embodiment 3

Described iron core 4 and iron core 5 can also be linked to be an iron core and insert from coil 7 then, and other realize another execution mode of the present utility model with the structure of embodiment 1 and embodiment 2.

Claims (3)

1. micromotor, this motor comprises p-m rotor (1), armature spindle (2), armature spindle support (3) iron core (4), iron core (5), iron core support (6), coil (7), coil brace (8), shell (9), outer casing upper cover (10), reduction box (11), output shaft (12), binding post (13) is characterized in that: the outer flat horizontal surface of described iron core (4) and iron core (5) the flat horizontal surface part in coil (7) and coil (7) is not partly on a plane.

2. a kind of micromotor according to claim 1, it is characterized in that: described iron core (4) and iron core (5) insert the coil (7) from two ends respectively, iron core (4) and iron core (5) expose part outside coil (7) along coil (7) outer wall bending, make the outer iron core flat horizontal surface of iron core flat horizontal surface part in the coil and coil partly not on a plane.

3. a kind of micromotor according to claim 1 is characterized in that: described iron core (4) and iron core (5) can also be linked to be an iron core and insert in the coil (7).

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