DE7107613U - Linear motor - Google Patents

Description

Herbert Morris, Limited
Lcughborough, Leicester, England

Linear motor

This innovation relates to improvements in linear motors.

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The power output of a linear motor is due to the temperature rise within the motor winding limited and this is made more difficult if the motor is encapsulated because of the mechanical protection is because the encapsulation is a poor conductor of heat for reasons of electrical insulation.

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The task of the innovation is to increase the output power by creating heat extraction paths improve from the engine.

According to the innovation, heat extraction waves in the form of fingers or inserts made of material from Good thermal conductivity inserted into the winding slots in the motor, with your fingers stretching over the Edges of the fin packs extend and clamp to the motor frame or mounting clamps dissipate heat generated in the winding therefrom.

The innovation is based on preferred embodiments in connection with the accompanying drawings.

It shows:

Figure 1 is a perspective view of the stationary member of a linear motor with the coil windings omitted for the sake of clarity which represents the innovation applied thereto;

Figure 2 is a side view of the same;

Figure 3 is a sectional view on the line 3 - 3 in Figure 2;

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Figures 4 and 5 perspective views of further designs

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The stationary link of a linear motor is with coils 1 in motor winding slots 2 between packets formed by lamellae 3, the coils and lamellae between motor terminals 4 forming angle members are fixed in position by bolts 5. The ends of the coils 1 in Figure 3 are at the end faces the disk packs 3 shown ending, but can be outward via the Motorkiemmen 4 extend beyond.

Fingers or inserts 6 (Figure 2) of low thermal resistance made of a material that conducts heat well, such as aluminum, copper, or some other metal, are in the motor winding slots from each side 2 used to extend substantially across the width of the grooves. A space is between the ends of the fingers or inserts in each groove.

The fingers or inserts 6 are, for example, when leaving the grooves 2 on the edge of the lamella pack 3

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bent by 9o, as shown in Figure 1, and are on the edge of the lamellae by means of the motor terminals (also made of a metrial are made of low thermal resistance) clamped by the clamping bolts 5 or rivets.

In this way, the heat generated by the coil 1 in the slots 2 is transferred from within the slots transfer the fingers or inserts 6 into the motor terminals 4 or the motor frame.

The linear motor is on a heat sink or cooling fin arrangement attached to dissipate the heat and thus to cool the engine.

In comparison to a linear motor, the windings 1 of the linear motor are without the fingers or inserts 6 not affected in any way.

The fingers or inserts 6 can be a number of individual elements or because of the more expedient Manufactured in one piece similar to a comb, as shown in Figure 4, in which they are related to the side parts 7 by which

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the bolts 5 run.

In a further embodiment shown in Figure 5, the inserts are channel members 8, which are inserted into the bottom of the grooves 2. Taper the sides of the gutters because of the training of the press tool from bottom to top to make contact with the Coils 1 to increase standing area, and to increase the height over half the distance between the Raising gutters to allow maximum heat accumulation to take place.

On a linear motor with a large structure of lamellas 3, the material is slotted to provide additional Add fingers or inserts and clips 4 and shorten the heat conductive path.

Protection claims

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Claims (4)

Protection claims 1. Linear induction motor, the stationary member of which is formed with coil windings which are inserted in grooves between lamellas packs, characterized in that heat extraction paths in the form of fingers or inserts 06) made of material with good thermal conductivity are introduced into the winding slots (3) in the motor are, the fingers or inserts C6) extending over the edges of the plate packs (3) and on the motor frame or mounting clamps C4) are clamped to generated in the winding (1) To dissipate heat from it. 2. Motor according to claim 1, characterized by the fact that the fingers or inserts (6) are inserted into the motor winding grooves C2) from each side and each on the edge of the laminated core (3) is bent down and clamped onto it. 710711316.6.71 3. Motor after. Claim 1, characterized in that the fingers or inserts (6) are designed to be integral with the side parts (J) and are held in position by the clamps (4). : 4. Motor according to claim 1, characterized characterized in that the inserts as channel members (8) connected to the side parts (7) are formed and pressed therefrom, and are held in place by the clamps (4). 7107S1316.6.71