CN2189796Y - Sprial winding D.C. motor - Google Patents

Abstract

The utility model relates to a permanent magnet D. C. motor which makes a winding by applying a printed circuit. The spiral winding D. C. motor of the utility model is composed of a rotator (armature), an armature bracket, a stator, a commutator, a shaft, a bearing, an electric brush and a casing. The armature is formed by the superposition of over two unit flaps; each unit flap is composed of a plurality of spiral windings; each spiral winding has two sides of a front side and a reverse side; an insulating flap is arranged between the two sides; the front and the reverse sides are connected by punching the centre hole; the armature and the commutator are connected with a detachable type by a connecting wire extracted from the windings and the commutator.

Description

Sprial winding D.C. motor

The utility model relates to a kind of permanent magnet DC motor that printed circuit is made winding of using.

At present, the DC printed circuit motor of public use is formed by rotor, stator, commutator, axle, bearing, brush and casing, rotor (claiming armature again) is made involute shape coil sliver by the pool copper sheet with printed circuit or precision punching method, constitute armature by compacting and welding then, because sliver all is single, therefore will constitute a coil, every all will have two solder joints, if there is the n root just to have 2n solder joint at least.Existing commutator all is to use with the sliver double as commutator in the coil, it and armature are one, be inseparable, so the shape of commutator can only be a plane, and the consistency of thickness of the thickness of commutator segment and coil sliver, in use rubbed by brush easily, can shorten electrical machinery life like this, this is a fatal weakness of present printed circuit motor.

The purpose of this utility model is intended to overcome the deficiencies in the prior art, provides a kind of armature solder joint few and separate the spirality winding direct current machine that is connected with commutator.

Printing spirality winding direct current machine described in the utility model is made up of rotor (armature), armature end flange, stator, commutator, axle, bearing, brush and casing, armature is formed by stacking by two above dice, each dice is made up of several spiral coils, each spiral coil has positive and negative two faces, between two faces insulating trip is arranged, positive and negative two faces connect by centre bore punching, and the connecting line of being drawn by coil between armature and the commutator is connected with commutator is split type.

In direct current machine described in the utility model, forming between the dice of armature as required, random set becomes series, parallel, connection in series-parallel to use, spiral coil in each dice can all be connected, can be one group of use also, can be made into single-phase like this or the three-phase alternating current printed circuit motor by single spiral coil or two, three spiral coil.In the utility model, because armature and commutator adopt split type connected mode, the shape of commutator no longer depends on armature shape, can adopt cylindrical, planar shaped, and armature with can be connected into ripple connecting of commutator around forms such as, lap wounds, irrelevant with the shape of spiral coil.

In motor described in the utility model, because the dice that armature has adopted spiral coil to form, it is a kind of breakthrough of making printed circuit motor at present, it has changed the manufacture method of conventional printed winding electric machine, none solder joint of cylindrical, the solder joint number of whole motor has reduced than originally more than 10 times, can not use expensive microbeam plasma welding machine, vacuum electron beam welder or laser-beam welding machine, only with low-cost plated-through hole method of attachment, spot welding machine or electric iron just can be finished, and saved two covers complicated in, the cylindrical weld jig, because solder joint reduces significantly, reliability of products and rate of finished products all are improved, also be the extensive exploitation of the printed circuit motor condition of providing convenience in addition, make and make high-power printed circuit motor (more than the 10KW), miniature printed circuit motor (diameter is below 20mm), exchange printed circuit motor, novel brushless printed circuit motor all becomes possibility.In the utility model, because commutator and armature are split type, commutator segment can be used thicker copper sheet, and can not increase the magnetic field air gap, so just solve short difficult problem of present printed circuit motor life-span, and kept printed circuit motor rotor pool, light advantage.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the utility model structure chart.

Fig. 2 is the utility model structure chart.

Fig. 3 is the utility model dice schematic diagram.

Fig. 4 is the utility model dice schematic diagram.

Among Fig. 1, Fig. 2,1 is armature, 3 is armature end flange, and 4 is motor shaft, and 5 is commutator, 6 is brush, Fig. 1 can be as a kind of embodiment of the present utility model, and its commutator 5 is a planar shaped, is connected with coil in the armature 1 by connecting line 2, commutator 2 among Fig. 2 is cylindrical, with the same Fig. 1 of the connected mode of armature.Fig. 3 is a kind of embodiment of spiral coil, the coil adjacent edge is parallel to each other, or title right-handed screw shape coil, here also can adopt round screw thread shape coil (coil adjacent edge distance equates), O1-O10 is the pad of two planar coil among the figure, a1-a10 is the tie point of coil and commutator, Fig. 4 is the another kind of embodiment of spiral coil, its coil adjacent edge and center line have an angle, or title inclined screw shape, O1-O10 is the pad of two planar coil among the figure, and a1-a10 is the tie point of coil and commutator segment.

Claims (9)

1, a kind of printing spirality winding direct current machine, form by rotor (armature), armature end flange, stator, commutator, axle, bearing, brush and casing, it is characterized in that armature 1 is formed by stacking by two above dice, each dice is made up of several spiral coils, each spiral coil has positive and negative two faces, between two faces insulating trip is arranged, positive and negative two faces connect by centre bore punching, the connecting line 2 and 5 split type connections of commutator of being drawn by coil between armature 1 and the commutator 5.

2,, it is characterized in that forming between the dice of armature 1 and be series, parallel or connection in series-parallel according to the described direct current machine of claim 1.

3,, it is characterized in that the spiral coil of component units sheet is connected in series according to the described direct current machine of claim 1.

4,, it is characterized in that per two of the spiral coil of component units sheet is one group and is connected in series according to the described direct current machine of claim 1.

5,, it is characterized in that per three of the spiral coil of component units sheet is that one group of serial connection connects according to the described direct current machine of claim 1.

6, according to the described direct current machine of claim 1, it is characterized in that armature 1 and commutator 5 for ripple around or lap wound be connected.

7, according to claim 1 and 6 described direct current machines, it is characterized in that being shaped as of commutator 5 is cylindrical.

8,, it is characterized in that described spiral coil is a right-handed screw shape according to the described direct current machine of claim 1.

9,, it is characterized in that described spiral coil is an inclined screw shape according to the described direct current machine of claim 1.

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