CN202210746U

CN202210746U - Flat motor

Info

Publication number: CN202210746U
Application number: CN201120367830XU
Authority: CN
Inventors: 许顺喜; 丁晟祥; 叶建明
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-05-02
Anticipated expiration: 2021-09-29

Abstract

A flat motor comprises a motor shell, a permanent magnet which is fixed in the shell, and a rotating shaft which penetrates in the shell by a bearing, wherein a plurality of coils and a reverser are arranged on the rotating shaft, the shell at the periphery of the reverser is internally provided with a plastic fixing ring, the reverser is positioned in an inner ring of the plastic fixing ring, the inner wall of the inner ring is provided with two elastic metal brush frames which are arranged symmetrically, electrode connecting pins extending out of the shell and used for connecting with external leads are arranged on the elastic metal brush frames, two ends of each elastic metal brush frame are clamped in the plastic fixing ring, and a carbon brush which is contacted with the reverser is fixedly arranged in each elastic metal brush frame. Compared with the prior art, the flat motor designed by the utility model has no iron core and no iron loss, is large in output torque and higher in rotating speed, has a flat shape as a whole and is small in volume and suitable for being used in instruments and equipment with various high requirements.

Description

A kind of flat motor

Technical field

The utility model relates to a kind of improvement technology of flat motor.

Background technology

In electromechanical industries, be provided with iron core and coil in traditional AC motor stator, the rotor winding, motor is in operation, and exists iron loss and slot effect in stator, the rotor, and electric efficiency is not high, brings a lot of defectives in the operation; Because the existence of iron core makes the volume of motor very big, and quality is also very heavy, and its iron loss also makes motor operating temperature under rated power very high, rotating speed is difficult to improve, and makes its range of application limited simultaneously.

The utility model content

In view of this, the utility model technical problem that will solve provides does not a kind ofly have iron core, efficient is high and flat electric machine applied widely.

For addressing the above problem, the utility model adopts following scheme to realize:

A kind of flat motor; Comprise motor case, be fixed in the shell permanent magnet and through the rotating shaft of bearing in the shell; In rotating shaft, be fixed with a plurality of coils and commutator, in the shell of commutator periphery, be with a plastic cement retainer plate, commutator is arranged in this plastic cement retainer plate inner ring; Be provided with the elastic metallic brush holder that two symmetries are installed at this inner ring inwall; The elastic metallic brush holder is provided with and extends shell and be used for the electrode pin that is connected with outer lead, and elastic metallic brush holder two ends are stuck in the plastic cement retainer plate, are fixed with the carbon brush that contacts with commutator at elastic metallic brush holder middle part.

Wherein, described permanent magnet is a plurality of, and each permanent magnet is along the circumferential even distribution of outer casing inner wall, and permanent magnet plane, coil plane are all vertical with rotating shaft.

And each coil is a round flat shape through resin-encapsulated, and is along circumferential even distribution, and coil is electrically connected with the electrode pin through carbon brush and elastic metallic brush holder.

As optimization to such scheme; Described plastic cement retainer plate inner ring internal diameter is greater than commutator brush track diameter; Described elastic metallic brush holder both ends are fastened in the groove preset in the plastic cement retainer plate; This elastic metallic brush holder middle part is unsettled, but and in the plastic cement retainer plate near this elastic metallic brush holder middle part, has the space that is used to provide the distortion of elastic metallic brush holder free bend.

As the further optimization to such scheme, described elastic metallic brush holder and electrode pin are structure as a whole, and the plastic cement retainer plate is provided with and is used for the breach that the electrode pin passes.

As the further optimization to such scheme, described coil is that the flat metal material is entwined with one heart, and integral body is flat, and coil is one group with one or more series connection or a plurality of parallel connections and is electrically connected with commutator.

Compared with prior art, the utility model designed motor does not have iron core, no iron loss, and energy conversion efficiency is high, and output torque is big, and it is higher that rotating speed can reach, and integral body is flat, and volume is little, is suitable in the instrument and equipment of multiple high request.

Description of drawings

Fig. 1 is the utility model embodiment cross section structure sketch map;

Fig. 2 is a present embodiment plastic cement fixed ring sketch map;

Fig. 3 is present embodiment elastic metallic brush holder and carbon brush, electrode leg structure sketch map;

Fig. 4 is present embodiment plastic cement retainer plate and elastic metallic brush holder, carbon brush, electrode pin mounting structure sketch map.

Embodiment

Below will combine accompanying drawing and embodiment that the utility model is described in further detail for the ease of it will be appreciated by those skilled in the art that:

The flat motor of the utility model embodiment design be no iron core flat motor, can replace perhaps other cored motors of existing cored cylindrical motor fully, has the efficient height, volume is little and advantage such as applied widely.

Shown in accompanying drawing 1～4.The flat motor that present embodiment discloses comprises motor case 1, a plurality of permanent magnet 2, rotating shaft 3, a plurality of coil 4 and the commutator 5 that is electrically connected with coil 4.Wherein, this shell 1 integral body is flat disk, and rotating shaft 3 runs through shell 1 and is movably installed in the shell 1 through bearing.

In this programme, permanent magnet 2 is along the circumferential even distribution of shell 1 both sides inwall, the magnetic field that formation rule distributes between the inwall of both sides thus.In the magnetic field between the permanent magnet 2, each coil 4 is round flat shape through resin-encapsulated and is the circumferential even distribution in edge that its overall fixed is in rotating shaft 3 to each coil 4 in shell 1 both sides inwall.Coil that this programme adopted 4 is entwined for the flat metal material with one heart, and integral body is flat, and coil is one group with one or more series connection or a plurality of parallel connections and is electrically connected with commutator 5.Each permanent magnet 2 plane, coil 4 planes are all vertical with rotating shaft 3.

In the present embodiment; In the shell 1 of commutator 5 peripheries, be with a plastic cement retainer plate 6; Commutator 5 is arranged in this plastic cement retainer plate 6 inner rings, and its inner ring internal diameter is preset with two centrosymmetric grooves 61 near the inner ring position greater than commutator 5 external diameters in plastic cement retainer plate 6; Card has the elastic metallic brush holder 7 that two symmetries are installed in groove 61; The both ends of elastic metallic brush holder 7 are stuck in the groove 61, and the middle part is unsettled and be fixed with carbon brush 9, and carbon brush 9 contacts with commutator 5 through elastic metallic brush holder 7 elasticity.But in plastic cement retainer plate 6, have the space 62 that is used to provide the distortion of elastic metallic brush holder 7 free bends near these elastic metallic brush holder 7 middle parts.Simultaneously, elastic metallic brush holder 7 is provided with and extends shell 1 and be used for the electrode pin 8 that is connected with outer lead, and this electrode pin 8 is structure as a whole with elastic metallic brush holder 7, and plastic cement retainer plate 6 is provided with and is used for the breach 63 that electrode pin 8 passes.

For anti-sealing, dust get into the operate as normal that motor internal influences motor, connecting portions such as shell 1 each connecting portion, bearing outer end are provided with sealing ring.

The permanent magnet that the utility model discloses and the quantity of coil can require to decide according to the actual practical parameter of motor, do not limit at this.

More than be a wherein concrete implementation of the utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these conspicuous replacement forms all belong to the protection range of the utility model.

Claims

1. flat motor; Comprise motor case (1), be fixed in the shell permanent magnet (2) and through the rotating shaft (3) of bearing in the shell; In rotating shaft, be fixed with a plurality of coils (4) and commutator (5); It is characterized in that: in the shell of commutator periphery, be with a plastic cement retainer plate (6); Commutator is arranged in this plastic cement retainer plate inner ring, is provided with the elastic metallic brush holders (7) that two symmetries are installed at this inner ring inwall, and the elastic metallic brush holder is provided with and extends shell and be used for the electrode pin (8) that is connected with outer lead; Elastic metallic brush holder two ends are stuck in the plastic cement retainer plate, are fixed with the carbon brush (9) that contacts with commutator at elastic metallic brush holder middle part.

2. flat motor according to claim 1 is characterized in that: described permanent magnet is a plurality of, and each permanent magnet is along the circumferential even distribution of outer casing inner wall, and permanent magnet plane, coil plane are all vertical with rotating shaft.

3. flat motor according to claim 2 is characterized in that: each coil is a round flat shape through resin-encapsulated, and is along circumferential even distribution, and coil is electrically connected with the electrode pin through carbon brush and elastic metallic brush holder.

4. according to each described flat motor in the claim 1～3; It is characterized in that: described plastic cement retainer plate inner ring internal diameter is greater than commutator brush track diameter; Described elastic metallic brush holder both ends are fastened in the groove (61) preset in the plastic cement retainer plate; This elastic metallic brush holder middle part is unsettled, but and in the plastic cement retainer plate near this elastic metallic brush holder middle part, has the space (62) that is used to provide the distortion of elastic metallic brush holder free bend.

5. according to each described flat motor in the claim 1～3, it is characterized in that: described elastic metallic brush holder and electrode pin are structure as a whole, and the plastic cement retainer plate is provided with the breach (63) that is used for the electrode pin and passes.

6. according to each described flat motor in the claim 1～3, it is characterized in that: described coil is that the flat metal material is entwined with one heart, and integral body is flat, and coil is one group with one or more series connection or a plurality of parallel connections and is electrically connected with commutator.