CN2904450Y

CN2904450Y - AC generator

Info

Publication number: CN2904450Y
Application number: CN 200620022718
Authority: CN
Inventors: 王学良; 乔林
Original assignee: Prestolite Electric Beijing Ltd
Current assignee: Prestolite Electric Beijing Ltd
Priority date: 2006-01-16
Filing date: 2006-01-16
Publication date: 2007-05-23
Anticipated expiration: 2016-01-16

Abstract

The field frame assembly of an alternator forms a convex-concave combination with a front end cover and a back end cover,and the size of the stator core of the field frame assembly is that the outer diameter is PHI 167mm to PHI 169mm and the inner diameter is PHI 126mm to PHI 128mm. The rotor assembly comprises a rotor shaft,a coil,a pair of claw poles,a bearing and a slip ring,and the coil is clipped between the two claw poles having a tight fit with the rotor shaft which also has a tight fit with the slip ring and the bearing. The front end cover and the back end cover are combined with the rotor assembly by the bearing, and an electric fan and a belt pulley fixed on the front end cover are circularly fixed by keys. A stud brush assembly is fixed on the back end cover assembly, and the stud brush is pressed on the slip ring of the rotor assembly by a spring in a stud brush hole. The back end cover assembly is arranged with the voltage regulator shroud components which are provided with two excitation terminals connected with the stud brush of the stud brush assembly through a lead wire. The excitation uses direct current and the excited current is 36V to 40V,and the power reaches 4KW,the output voltage after rectifying reaches 320V. This alternator is small in size and reasonable in structure.

Description

A kind of alternating current generator

Technical field

The utility model relates to a kind of automobile-used electric electrical energy supply device.

Background technology

In order to satisfy Hyundai Motor, require that the vehicle alternator volume is little, reliable in structure, work is lasting, generating capacity is strong and it is higher to send voltage to development need high-grade, comfortable, electric automatization.And the generator power of 4KW is less relatively both at home and abroad at present, and physical dimension is bigger, and consumptive material is many, and generating voltage has not satisfied the requirement of modern vehicle.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of rational in infrastructure, power is big, volume is little, voltage is higher, the novel alternating current generator of dependable performance.

To achieve these goals, the utility model provides a kind of alternating current generator, comprises field frame assembly, rotor assembly, front end cover assembly, rear end cap assembly, belt pulley, fan, brush assembly of electric, voltage regulator cover assembly, it is characterized in that,

Described field frame assembly is fixed between described front end cover assembly and the described rear end cap assembly and always is shaped as convex-concave with described front end cover assembly and described rear end cap and cooperates, the stator core of described field frame assembly is of a size of: external diameter Φ 167mm～Φ 169mm, internal diameter Φ 126mm～Φ 128mm;

Described rotor assembly, comprise armature spindle, winding, a pair of pawl utmost point, bearing and slip ring, described winding is fixed between the described two pawl utmost points and described winding two ends are connected with described slip ring, and described armature spindle runs through the described two pawl utmost points, described bearing and described slip ring and difference interference fit successively;

Described front end cover assembly and described rear end cap assembly by described Bearing Installation on described armature spindle and contain described field frame assembly and described rotor assembly;

Described fan and described belt pulley place the described front end housing outside circumferentially to fix on described armature spindle and by first fixture and described armature spindle successively, are fixed in successively on the described front end cover assembly by second fixture;

Described brush assembly of electric is fixed on the described rear end cap assembly and the brush of described brush assembly of electric and described slip ring closing;

Described voltage regulator cover assembly is fixed on the described rear end cap assembly outside, the voltage regulator of described voltage regulator cover assembly is provided with two excitatory binding posts and is connected with the brush of described brush assembly of electric by lead-in wire, and its sharp electric current of excitatory employing direct current is 36V～40V.

Above-mentioned alternating current generator is characterized in that, the brush of described brush assembly of electric is provided with the hole that elastic component is installed, and described brush is pressed against on the described slip ring of described rotor assembly by elastic component.

Above-mentioned alternating current generator is characterized in that, described first fixture is a retainingf key, has corresponding keyway on the described armature spindle.

Above-mentioned alternating current generator is characterized in that, described second fixture is nut and pad.

Above-mentioned alternating current generator is characterized in that, the stator piece of described field frame assembly adopts silicon steel sheet.

Above-mentioned alternating current generator is characterized in that, described rear end cap assembly is equipped with heating panel.

Above-mentioned alternating current generator is characterized in that, the described elastic component that is installed in the brush hole is a spring.

Effect of the present utility model is, adopts the Lundell structure, and it swashs 36～40V excitatory employing direct current, is output as the three phase sine alternating current of high pressure; Stator core is of a size of: external diameter φ 167mm～φ 169mm, internal diameter φ 126mm～φ 128mm; Power is 4KW, and with respect to the motor of domestic and international equal volume, power has increased 1KW, has saved material, has improved the output voltage after the rectification simultaneously, reaches 320V.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is the outline drawing of the utility model alternating current generator;

Fig. 2 is the utility model installation diagram;

Fig. 3 is the utility model rear end cap assembly figure;

Fig. 4 is the utility model explosive view;

Fig. 5 is the utility model rotor assembly figure.

Wherein, Reference numeral

1 nut, 2 pads

3 belt pulleys, 4 keys

5 fans, 6 front end cover assemblies

7 rotor assemblies, 8 field frame assemblies

9 rear end cap assemblies, 10 brush assembly of electric

11 voltage regulator cover assemblies, 12 heating panels

71 armature spindles, the 72 pawl utmost points

73 windings, 74 bearings

75 slip rings

Embodiment

See also Fig. 2, Fig. 3, Fig. 4 and Fig. 5, Fig. 2 is the utility model installation diagram, and Fig. 3 is the utility model rear end cap assembly figure, and Fig. 4 is the utility model explosive view, and Fig. 5 is the utility model rotor assembly figure.The utility model alternating current generator comprises nut 1, pad 2, belt pulley 3, key 4, fan 5, front end cover assembly 6, rotor assembly 7, field frame assembly 8, rear end cap assembly 9, brush assembly of electric 10, voltage regulator cover assembly 11, heating panel 12.

Rotor assembly 7 comprises armature spindle 71, winding 73, a pair of pawl utmost point 72, bearing 74 and slip ring 75, and winding is extremely fixing by two pawls, and the two pawl utmost points form firm interference fit with armature spindle respectively, and slip ring and bearing also form interference fit with armature spindle.The two ends of winding are welded together with slip ring after by the crossed beam trunking on the pawl utmost point and the axle, and slip ring surface keeps contacting with brush.It swashs to adopt direct current, in motor rotation, can whether control electric power generation by switching on and off exciting circuit; The increase exciting curent to strengthen magnetic field, is output as the three phase sine alternating current of high pressure (rectification after output direct current 320V) to guarantee it to 36V～40V; Rotor assembly 7 forms with front end cover assembly 6 and rear end cap assembly 7 respectively by two bearings and cooperates the reliability when guaranteeing its high speed rotating.Rotor rotated provides magnetic field for stator.

Fan 5 and belt pulley 3 prevents that by key 4 them from circumferentially relatively rotating with rotor assembly 7, and with nut 1, pad 2 is pressed abd fixed on the front end cover assembly 6;

Field frame assembly 8 forms convex-concave with front end cover assembly 6 and rear end cap assembly 9 and cooperates, and to guarantee its reliable connection, the stator piece of field frame assembly adopts silicon steel sheet, to increase its magnetic conductivity, reduces eddy current loss; Resistant to elevated temperatures enamel-cover money is adopted in coiling, and dipping lacquer repeatedly, to increase its insulation property and high voltage bearing reliability; The electric phase angle of three phase windings of stator is 120 °, and the rotating magnetic field that cutting rotor produces produces three-phase alternating current.The stator core of field frame assembly is of a size of: external diameter φ 167mm～φ 169mm, internal diameter φ 126mm～φ 128mm;

Brush assembly of electric 10 is fixed on the rear end cap assembly 9, and brush is pressed on the slip ring on the rotor assembly 7 by the spring in the brush hole, keeps it to be in contact with one another, and forms stable closed circuit with the field winding of auxiliary rotation;

Voltage regulator cover assembly 11 is screwed on rear end cap assembly 9, has two excitatory binding posts also to be connected on the brush of brush assembly of electric 10 with lead-in wire on the voltage regulator;

Rear end cap assembly 9 is equipped with heating panel 12, with the radiating efficiency of expanded motor, improves the heat-sinking capability of motor when high-power output;

Adopt such scheme, the utility model power is 4KW, with respect to equal power product volume is little both at home and abroad, economical with materials, be output as the three phase sine alternating current (output direct current 320V after the rectification) of high pressure, and adopt multiple reliable version, improve Performance And Reliability.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1, a kind of alternating current generator comprises field frame assembly, rotor assembly, front end cover assembly, rear end cap assembly, belt pulley, fan, brush assembly of electric, voltage regulator cover assembly, it is characterized in that,

Described voltage regulator cover assembly is fixed on the described rear end cap assembly outside, the voltage regulator of voltage regulator cover assembly is provided with two excitatory binding posts and is connected with the brush of described brush assembly of electric by lead-in wire, and its sharp electric current of excitatory employing direct current is 36V～40V.

2, alternating current generator according to claim 1 is characterized in that, the brush of described brush assembly of electric is provided with the hole that elastic component is installed, and described brush is pressed against on the described slip ring of described rotor assembly by elastic component.

3, alternating current generator according to claim 1 is characterized in that, described first fixture is a retainingf key, has corresponding keyway on the described armature spindle.

4, alternating current generator according to claim 1 is characterized in that, described second fixture is nut and pad.

5, alternating current generator according to claim 1 is characterized in that, the stator piece of described field frame assembly adopts silicon steel sheet.

6, alternating current generator according to claim 1 is characterized in that, described rear end cap assembly is equipped with heating panel.

7, alternating current generator according to claim 2 is characterized in that, the described elastic component that is installed in the brush hole is a spring.