CN203554096U

CN203554096U - Rotor for motor

Info

Publication number: CN203554096U
Application number: CN201320560133.5U
Authority: CN
Inventors: R·库韦特
Original assignee: Hanning Elektro Werke GmbH and Co KG
Current assignee: Hanning Elektro Werke GmbH and Co KG
Priority date: 2012-09-10
Filing date: 2013-09-10
Publication date: 2014-04-16
Anticipated expiration: 2023-09-10
Also published as: DE202012103438U1

Abstract

The utility model relates to a rotor for a motor. The rotor is provided with a laminated core, wherein the laminated core comprises a plurality of rotor packs arranged along the axial direction in a stagger manner, the rotor is provided with a plurality of permanent magnets, each permanent magnet is kept in a holding groove of each rotor pack through a casting material, and each rotor pack (2) is provided with a covering casting ring (6) covering the holding groove (5) or each permanent magnet (3) on the end face. By adopting the rotor provided by the utility model, the rotor packs with integrated permanent magnets are simpler to manufacture, and the cost is lower.

Description

For the rotor of motor

Technical field

The utility model relates to a kind of rotor for motor.

Background technology

By the known a kind of rotor for motor of DE102007060011A1, this rotor has laminated core on the one hand, has on the other hand multiple permanent magnets.Described permanent magnet is placed in each holding tank of laminated core.Laminated core is kept by end plate molded on end face, and these end plates cover the end face of laminated core all sidedly.For fixing of these end plates, need extra coupling bar, these coupling bars are constructed by watering the full continuous passage extending vertically.In addition, the narrow lateral side regions not occupied by permanent magnet of described holding tank is filled by cast material.The shortcoming of this known rotor is, drops into relatively highly for fixing laminated core or the required material of permanent magnet, exactly, extra interface channel must be set.

Utility model content

Task of the present utility model is further a kind of rotor for motor of structure, makes the manufacture of the laminated core with integrated permanent magnet can be simpler, and cost is lower.

This task solves by a kind of rotor for motor, this rotor has laminated core, this laminated core comprises multiple rotor packs that mutually stagger vertically and arrange, and this rotor has multiple permanent magnets, described permanent magnet remains on by cast material in the holding tank of laminated core, it is characterized in that, laminated core is provided with and covers holding tank and cover in other words the coated casting ring of permanent magnet at end face.

The beneficial effects of the utility model are, drop into the permanent magnet in the holding tank that the rotor pack that guarantees simply and reliably to fix laminated core packs laminated core in other words into few material.

Basic thought of the present utility model is: the cast material of laminated core end face only arranges in such region, holding tank in other words permanent magnet in this region.The area that is wrapped by casting on laminated core end face is therefore relatively little, to such an extent as to can cancel the extra intercell connector of holding tank outside.

According to a kind of favourable execution mode of the present utility model, permanent magnet is placed in respectively in holding tank, and permanent magnet is only connected with holding tank by adhesive face on one of holding tank unique broad side surface.Described adhesive face can consist of the axial depression of filling with cast material, extend along one of them broad side surface of holding tank.As an alternative or supplement, described adhesive face also can consist of the gap of filling between broad side surface and the permanent magnet of described holding tank, and this broad side surface forms an adhesive face at this.Thisly bondingly carry out continuously in the axial direction and be connected integratedly with the coated casting ring of end face.Cast material in axial valley and/or on the broad side surface of holding tank is used herein to and forms the bonding of inside, and the cast material on the end face of rotor pack is for forming the bonding of outside.Inner is bonding, i.e. the broad side surface of axial valley or holding tank is positioned at coated casting ring inner in axis projection.

Advantageously, described coated casting ring extends circularly.

Advantageously, the width of described coated casting ring is enough to make holding tank to be completely covered.

Advantageously, described holding tank has axial valley on its broad side surface, for holding cast material.

Advantageously, described permanent magnet and/or opposed two coated casting rings are by watering full axial valley and/or being fullly kept at permanent magnet and the gap that has between the broad side surface of axial valley by watering.

Advantageously, the narrow lateral side regions of not filled by permanent magnet of described axial valley and/or holding tank is watered full, for forming the intercell connector between opposed two coated casting rings.

Advantageously, described intercell connector is connected integratedly with opposed two coated casting rings.

Advantageously, described axial valley is arranged on the outside broad side surface of holding tank.

Advantageously, described axial valley medially and in the axial direction extends continuously between two narrow sides of holding tank.

Advantageously, described cast material consists of polypropylene or polyamide.

Accompanying drawing explanation

Further illustrate with reference to the accompanying drawings specific embodiment of the utility model below.Accompanying drawing is as follows:

Fig. 1 is the perspective view with the rotor of the coated casting ring of laminated core and end face;

Fig. 2 is the axial view of the rotor drawn with dotted line of holding tank;

Fig. 3 is by the cutaway view of the rotor of Fig. 2 section line III-III.

Embodiment

According to the rotor 1 for motor of the present utility model, can for example be contained in inner rotor motor.For example heat supply wind furnace of motor or pumping system use, for example, for cooking equipment, as combination steamed tool.Rotor 1 can for example press-fit or hot pressing is sleeved on not shown axle.

Rotor 1 mainly consists of laminated core 2 and multiple permanent magnet 3 being integrated in laminated core 2.

Laminated core 2 has multiple rotor packs 4 that mutually stagger vertically and arrange.Rotor pack 4 preferably consists of same rotor pack and arranges coaxially mutually, wherein forms rotor axis A.

Rotor pack 4 has respectively slotted hole aligned with each other, and described slotted hole along the circumferential direction extends with distributing.When rotor pack 4 is settled stackedly in confined state, these slotted holes form each holding tank 5 of laminated core 2, place permanent magnet 3 in these holding tanks.

Laminated core respectively arranges a coated casting ring 6 on opposed two end faces, for keeping laminated core 2.Coated casting ring 6 forms by the casting on the rotor pack 4 at end face.Wherein cast material consists of polypropylene material (PP) or polyamide material (PA).Coated casting ring 6 extends circularly and has width b, and holding tank 5 is completely covered.Because holding tank 5 is preferably arranged on the outer edge region of laminated core 2, the also outer edge region in laminated core 2 of described coated casting ring.The outside that coated casting ring 6 forms laminated core 2 is bonding.

Rotor pack 4 preferably interconnected by stamping-out closed assembly, riveted joint or welding before the coated casting ring 6 of structure.Rotor 1 had just had homeostatic structure thus before packing permanent magnet 3 into holding tank 5.

Holding tank 5 has respectively opposed two broad side surfaces 7,7 ' and opposed two narrow sides 8.Broad side surface 7,7 ' basic and coated casting ring 6 extend tangently.The complete plane formula of the broad side surface 7 ground structure of the paraxial side of holding tank 5.The broad side surface 7 ' of the axle side far away of holding tank 5 has axial valley 9.Axial valley 9 is preferably located in the zone line of outside broad side surface 7 ' and between the end face of laminated core 2 and extends continuously.Axial valley 9 is filled with cast material and for fixed rotor lamination 4 laminated core 2 in other words.

As shown in Figure 3, intercell connector 10 is connected integratedly with coated casting ring 6.Coated casting ring 6 and intercell connector 10 can be manufactured in a unique operation.For this reason, being provided with rotor pack 4 permanent magnet 3 and that be stacked layout is positioned in the die cavity of casting machine.Mold half is pressed on outside rotor pack 4, reserve cavity, described cavity for example, is filled by cast material (PP, PA) in follow-up injection process, to form coated casting ring 6, and the passage that the cavity of two end faces is coupled together filled by this cast material, to form intercell connector 10.Preferably, each holding tank 5 arranges an independent intercell connector 10.

According to a kind of unshowned other execution mode of the present utility model, the outside broad side surface 7 ' with axial valley 9 can be used as the adhesive face of permanent magnet 3 extraly.In the case, the gap between outside broad side surface 7 ' and permanent magnet 3 is filled by cast material completely.In the case, form non-wire laminated core 2 is inner, but planar bonding.

According to a kind of unshowned other execution mode of the present utility model, described inside is bonding also can only be passed through in outside broad side surface 7 ' and/or the planar bonding realization on inner broad side surface 7, without forming wire intercell connector by axial valley 9 extraly.In the case, inner broad side surface 7 or outside broad side surface 7 ' do not have axial valley 9.

According to another kind of execution mode of the present utility model, the profile of the profile of permanent magnet 3 and holding tank 5 is inconsistent, and the each narrow lateral side regions 11 of holding tank 5 is not filled by permanent magnet 3.Each narrow lateral side regions 11 is filled by cast material in casting cycle described above, and to form extra intercell connector, these intercell connectors extend continuously vertically between the end face of laminated core 2.In this execution mode, each broad side surface of holding tank 57,7 ' does not preferably have axial valley 9.

Other embodiment draw by the combination of above-mentioned feature.Therefore the shown all embodiment with described should not be understood to enumerating of closure, and have more precisely for describing exemplary character of the present utility model.

Claims

1. for the rotor of motor, this rotor has laminated core, this laminated core comprises multiple rotor packs that mutually stagger vertically and arrange, and this rotor has multiple permanent magnets, described permanent magnet remains on by cast material in the holding tank of laminated core, it is characterized in that, laminated core (2) is provided with and covers holding tank (5) the coated casting ring (6) of permanent magnet (3) in other words on end face.

2. according to the rotor of claim 1, it is characterized in that, described coated casting ring (6) extends circularly.

3. according to the rotor of claim 1, it is characterized in that, the width (b) of described coated casting ring (6) is enough to make holding tank (5) to be completely covered.

4. according to the rotor of claim 2, it is characterized in that, the width (b) of described coated casting ring (6) is enough to make holding tank (5) to be completely covered.

5. according to the rotor of one of claim 1 to 4, it is characterized in that, described holding tank (5) has axial valley (9) on its broad side surface (7 '), for holding cast material.

6. according to the rotor of claim 5, it is characterized in that, described permanent magnet (3) and/or opposed two coated casting rings (6) are by watering full axial valley (9) and/or being fullly kept at permanent magnet (3) and the gap that has between the broad side surface (7 ') of axial valley (9) by watering.

7. according to the rotor of claim 5, it is characterized in that, the narrow lateral side regions (11) of not filled by permanent magnet (3) of described axial valley (9) and/or holding tank (5) is watered full, for forming the intercell connector (10) being positioned between opposed two coated casting rings (6).

8. according to the rotor of claim 7, it is characterized in that, described intercell connector (10) is connected integratedly with opposed two coated casting rings (6).

9. according to the rotor of claim 5, it is characterized in that, described axial valley (9) is arranged on the outside broad side surface (7 ') of holding tank (5).

10. according to the rotor of claim 5, it is characterized in that, described axial valley (9) medially and in the axial direction extends continuously between two narrow sides (8) of holding tank (5).

11. according to the rotor of one of claim 1 to 4, it is characterized in that, described cast material consists of polypropylene or polyamide.