CN201041959Y - A gasoline start electromotor - Google Patents

Abstract

The utility model relates to the electric starting motor of a gasoline engine, consisting of a shell and a stator iron core arranged in the shell and integrated with the shell. The stator iron core is two iron core bodies that are mutually separate and symmetric to each other along the axes of the electric starting motor. Two armature slots, which are symmetric to each other along the axes of the electric starting motor, are formed between the two stator iron cores and the shell. Under the circumstance that the electric starting motor has the same radial dimension as the prior electric starting motor, the electric starting motor has larger armature slot space than the prior electric starting motor, and thereby, an electric starting motor with the structure has a smaller radial volume than the prior electric starting motor, under the circumstance that the armature slot space is invariable.

Description

A kind of starter motor of gasoline engine

Technical field

The utility model relates to the starter motor of gasoline engine.

Background technology

Starter motor is used widely on small utility gasoline engine, and it is fixed on the crankcase of gasoline engine and is positioned at outside the crankcase.The starter motor of gasoline engine comprises shell, rear end cap and middle end cap, and shell is connected as a single entity the three by two bolts between rear end cap and middle end cap.Be provided with stator core and rotor in the shell, as shown in Figure 3, Figure 4, stator core is the iron-core workpiece of the integral body that combines as a whole with shell, it forms two armature slots with starter motor axis symmetry in the enclosure, and with the rotor chamber of starter motor coaxial line, two armature slots are connected with rotor chamber, be provided with lead-out wires of coil in the armature slot therein, thereby and the bolt that shell, rear end cap and middle end cap are connected is also vertically passed armature slot occupied the certain space in the armature slot, described rotor is arranged in rotor chamber.

Because the space of installing for starter motor on the general gasoline engines is limited, so the volume of starter motor is radially dwindled, and the volume of starter motor reduces, to two armature slot spaces in the starter motor be reduced, because the existing coil that is wrapped on the stator core in the armature slot, two lead-out wires of coil and connecting bolt are arranged again, and the reducing of armature slot space will make coil, lead-out wires of coil and connecting bolt very crowded in armature slot, make connecting bolt pass very difficulty from armature slot.

The utility model content

The purpose of this utility model provides a kind of starter motor of gasoline engine, and under the situation identical with existing starter motor radial dimension, existing starter motor armature slot space, its armature slot space is big.

The starter motor of gasoline engine described in the utility model, comprise shell and be positioned at shell and stator core that shell combines as a whole, stator core forms the rotor chamber with the starter motor coaxial line in the enclosure, stator core be two separate and with the iron-core workpiece of starter motor axis symmetry, form two armature slots between two stator cores and the shell with starter motor axis symmetry.

Starter motor described in the utility model is because its armature slot is to be formed by stator core and shell, but not all form by stator core as existing starter motor, thereby make starter motor minus two sections iron-core workpieces that two stator cores are combined as a whole, and this two iron legs core body forms the part of existing starter motor armature slot just, so under the identical situation of starter motor radial dimension, the space of the utility model starter motor armature slot is greater than the space of existing starter motor armature slot, also make starter motor with this kind structure under the constant situation of armature slot spatial volume, radially existing starter motor of volume is little for it.Simultaneously, because shell and two stator cores combine as a whole, can utilize the shell magnetic conduction between the starter motor magnetic pole of the stator, and can not influence the operate as normal of starter motor.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 looks generalized section for the partial structurtes master of the starter motor of gasoline engine described in the utility model;

Fig. 2 is the cutaway view of A-A line among Fig. 1;

Fig. 3 looks generalized section for the partial structurtes master of the starter motor of existing gasoline engine;

Fig. 4 is the cutaway view of B-B line among Fig. 3.

Embodiment

As shown in Figure 1 and Figure 2, the starter motor of this gasoline engine comprises shell 1 and is positioned at the stator core 2 that shell 1 and shell 1 combine as a whole, stator core 2 forms the rotor chamber 7 with the starter motor coaxial line in shell 1, rotor 5 is arranged in the rotor chamber 7, stator core 2 be two separate and with the iron-core workpiece of starter motor axis symmetry, be wound with coil 4 on two stator cores 2, form two armature slots 6 between two stator cores 2 and the shell 1, wherein be provided with lead-out wires of coil 3 in the armature slot 6 with starter motor axis symmetry.

Claims (1)

1. the starter motor of a gasoline engine, comprise shell (1) and be positioned at shell and stator core (2) that shell combines as a whole, stator core forms the rotor chamber (7) with the starter motor coaxial line in the enclosure, it is characterized in that: stator core be two separate and with the iron-core workpiece of starter motor axis symmetry, form two armature slots (6) between two stator cores and the shell with starter motor axis symmetry.

Images