RU15525U1 - DC MOTOR - Google Patents

Description

The useful model refers to electric DC machines with a lined barbed armature, with excitation from permanent magnets, used, for example, in electromechanical power steering systems of automobiles.

A known direct current electric machine containing a universal frame, inside of which permanent magnets are fixed, a shaft on which a lined prong anchor with grooves and a collector are installed, a caliper shield with brushes, bearings installed in the bearing shield, ij

The disadvantages of this electric motor include non-optimal specific mass and dimensional indicators, and a high tooth moment of the armature, which affects the quality and characteristics of the electric motor.

The purpose of the proposed utility model is to reduce specific weight and size indicators, and reduce the tooth moment of the anchor.

This goal is achieved by the fact that the DC motor contains an inductor with four staple magnets, a support plate with four brushes, a shaft on which a pinned gear anchor and a collector are installed, a laced gear anchor is made with a bevel groove of 0.5 - 1 gear divisions, in the grooves of which a simple loop winding is laid, the inductor includes a magnetic core made of magnetically soft material and staple-shaped magnets made of a highly coercive sintered alloy Nd-Fe-B with a uniform air gap under the pole, a brush code Holders of the support shield are made of a well type with current leads to the brushes through conductive ropes, the output end of the shaft is made with internal (external) splines.

The figure shows a General view of the proposed electric motor.

The electric motor contains an inductor 1, with four staple-shaped magnets 2 of a high-cer tain sintered alloy Nd-Fe-B with a uniform puffed gap under the pole. Caliper 3, with four brushes 4. Shaft 5, on which a lined prong anchor 6 and a collector 7 are mounted. A lined prong anchor 6 is made with a bevel groove of 0.5-1 prong divisions, in the grooves of which a simple loop winding is laid. The inductor 1 is made of soft magnetic material. The brush holders 8 of the caliper shield 3 are made of a well type with current leads to the brushes through current-carrying ropes. The output end of the shaft 5 is made with internal (external) splines.

The electric motor operates as follows. The supply voltage is supplied through the conductive ropes to the brushes 4. Through the circuit "brushes 4 - collector 7 - winding of the armature 6, a current flows, interacting with the magnetic flux of permanent magnets 2. The resulting torque, acts on the armature 6. Anchor 6, and together with it and the shaft 5, the electric motor begin to rotate.

Thus, using an inductor in the electric motor, which includes a magnetic conductor made of soft magnetic material and four staple-shaped permanent magnets made of highly selective Nd-Fe-B sintered alloy, a caliper with four brushes installed in the brush holders of the well type with current leads to the brushes through the conductive cord lined made with a bevel of a groove of 0.5 - 1 tooth division, in the grooves of which a simple loop winding is laid, all this made it possible to reduce the specific mass and dimensional indicators, and ix schihtovannogo perforated anchor groove with a chamfer of 0.5 - 1 tooth pitch reduced the claw point.

At present, a batch of electric motors ДП80-180-1,8-12 of the proposed design has been manufactured at the present time, which have drilled with positive results from ignition as part of the electromechanical power steering of a car, and their serial production is being prepared. Sources of INFORMATION (} W

Natent No. 5113104 Н02К 5/16 “Structural construction of a dynamoelectric mapshn USA publ. 05/12/92

Claims (4)

1. A DC motor containing an inductor with four staple magnets, a caliper with four brushes, a shaft on which a lined prong anchor and a collector are installed, characterized in that the lined prong bar anchor is made with a bevel groove of 0.5-1 prong divisions, in the grooves of which a simple loop winding is laid.  2. The DC motor according to claim 1, characterized in that the inductor includes a magnetic core made of magnetically soft material and staple-shaped magnets made of highly etched sintered alloy Nd-Fe-B with a uniform air gap under the pole.  3. The DC motor according to claim 1, characterized in that the brush holders of the caliper shield are made of a well type with current leads to the brushes through conductive ropes. 4. The electric motor according to claim 1, characterized in that the output end of the shaft is made with internal (external) splines.