CN106877613A

CN106877613A - Automobile current generator

Info

Publication number: CN106877613A
Application number: CN201710224233.3A
Authority: CN
Inventors: 陈进光
Original assignee: ZHEJIANG ZHENGTIAN ELECTRIC MANUFACTURING Co Ltd
Current assignee: ZHEJIANG ZHENGTIAN ELECTRIC MANUFACTURING Co Ltd
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2017-06-20

Abstract

The invention discloses a kind of automobile current generator, including housing, stator module, rotor assembly, carbon brush holder, carbon brush and belt pulley, there is armature spindle on rotor assembly, carbon brush holder is arranged with armature spindle, carbon brush holder front and back annular array has several carbon brush grooves, on carbon brush holder the carbon brush groove at the positive back side at regular intervals interlock circumferential arrangement, carbon brush is installed in carbon brush groove, spring is installed in the afterbody of carbon brush, correspondence spring is provided with power-assisted torsion spring, there are two elastic foots on power-assisted torsion spring, two elastic foot is stretched into carbon brush groove, one of elastic foot is welded on the bottom of spring, another elastic foot is connected to the bottom of carbon brush groove.The technique effect that the carbon brush replacement cycle is long and electricity transformation efficiency is high is so just reached.

Description

Automobile current generator

Technical field

The present invention relates to a kind of automobile current generator.

Background technology

Automobile current generator, including be made up of drive end bearing bracket, rear end cap housing, stator, rotor, rectifier, etc. adjuster；Turn Attached bag includes two pawls being oppositely arranged, the rotor windings and its skeleton, armature spindle that are surrounded in the cavity for constituting positioned at two pawls, Rotor is located at and is surrounded and constituted in installation cavity by drive end bearing bracket, rear end cap, and the armature spindle two ends of rotor pass through drive end bearing bracket, rear end cap respectively Support, collector ring and carbon brush electrical connection of the rotor windings through being socketed on armature spindle, is formed during work by belt drive rotation Rotating excitation field；Stator includes stator core and stator winding, and stator is located at and is surrounded and constituted in installation cavity simultaneously by drive end bearing bracket, rear end cap It is arranged on drive end bearing bracket by stator core, electric current is produced by stator cutting magnetic line during work；Rectifier is used for will exchange Direct current is converted into, adjuster is used for the electrical equipments such as controlled output voltage, rectifier, adjuster, carbon brush and is typically mounted on rotor In cavity and rear end cap between.

In said structure, carbon brush is arranged on a carbon brush holder, has the brush box placed for carbon brush on carbon brush holder, is installing carbon Pass through spring as brush is latter and make it keep contacting under stress with sliding surface, in some cases, the length of brush box inner chamber is spent It is long, carbon brush under the Spring driving with sliding surface contact wear after build-up of pressure it is not enough, make carbon brush utilization rate small so that the replacement cycle It is short, and need to increase the quantity of carbon brush to increase the electricity of conversion, and traditional method is exactly on the end face of carbon brush holder Circumferential arrangement increase the quantity of brush-box, due to needing to keep certain interval between brush-box so that space is extremely narrow.

The content of the invention

To solve the above problems, it is an object of the invention to provide a kind of carbon brush replacement cycle is long and electricity transformation efficiency Automobile current generator high.

To achieve the above object, the invention provides following technical scheme：A kind of automobile current generator, including housing, stator Component, rotor assembly, carbon brush holder, carbon brush and belt pulley, have armature spindle on described rotor assembly, it is characterised in that：Institute Described carbon brush holder is arranged with the armature spindle stated, described carbon brush holder front and back annular array there are several carbon brush grooves, The carbon brush groove at the positive back side interlocks circumferential arrangement at regular intervals on the carbon brush holder, and described carbon is installed in described carbon brush groove Brush, spring is provided with the afterbody of the carbon brush, and the described spring of correspondence is provided with power-assisted torsion spring, has on described power-assisted torsion spring Two elastic foots, two elastic foot is stretched into carbon brush groove, and one of elastic foot is welded on the bottom of the spring, another elastic foot It is connected to the bottom of carbon brush groove.

By having the beneficial effect that for being reached using above-mentioned technical proposal：Between front carbon brush groove and back side carbon brush groove are pressed necessarily Every after staggeredly circumferential arrangement, more carbon brush quantity being installed in same space so that electric energy conversion efficiency is higher, and It is provided with after power-assisted torsion spring between the bottom land of spring and carbon brush groove, it is possible to provide the more extruding forces of spring, makes carbon brush groove（Brush Box）When the length of inner chamber is long, the sliding surface after carbon brush abrasion all the time with rotating shaft under the process auxiliary drive of power-assisted torsion spring is contacted, and is made The utilization rate of carbon brush increases and extends the replacement cycle of carbon brush, has so just reached that the carbon brush replacement cycle is long and electricity conversion effect Rate technique effect high.

The invention will be further described with reference to the accompanying drawings and detailed description.

Brief description of the drawings

Fig. 1 is the structural representation of the specific embodiment of the invention；

Fig. 2 is the enlarged drawing of A in Fig. 1；

Fig. 3 is the lower view of carbon brush holder in the specific embodiment of the invention；

Fig. 4 is the top view of carbon brush holder in the specific embodiment of the invention.

Specific embodiment

As shown in Fig. 1-Fig. 4, this automobile current generator, including housing 1, stator module 2, rotor assembly 3, carbon brush holder 4, Carbon brush 5 and belt pulley 6, have armature spindle 31 on rotor assembly 3, carbon brush holder 4, the front of carbon brush holder 4 are arranged with armature spindle 31 Annular array has several fronts carbon brush groove 41, has several back sides carbon brush groove 42, front carbon in the back side annular array of carbon brush holder 4 Brush groove 41 and back side carbon brush groove 42 interlock circumferential arrangement, carbon brush groove at regular intervals（41、42）Interior installation carbon brush 5, in carbon brush 5 Afterbody is provided with spring 7, and correspondence spring 7 is provided with power-assisted torsion spring 8, has two elastic foots on power-assisted torsion spring 8（81、82）, two bullet Property pin（81、82）Stretch into carbon brush groove（41、42）Interior, one of elastic foot 81 is welded on the bottom of spring 7, another elastic foot 82 It is connected to carbon brush groove（41、42）Bottom.

In embodiment, front carbon brush groove 41 and back side carbon brush groove 42 interlock after circumferential arrangement at regular intervals, same The quantity of more carbon brush 5 can be installed in space so that electric energy conversion efficiency is higher, and between the bottom land of spring 7 and the groove of carbon brush 5 It is provided with after power-assisted torsion spring 8, it is possible to provide the more extruding forces of spring 7, makes the groove of carbon brush 5（Brush box）When the length of inner chamber is long, Sliding surface after the abrasion of carbon brush 5 all the time with rotating shaft under the process auxiliary drive of power-assisted torsion spring is contacted, and makes the utilization rate increase of carbon brush 5 simultaneously Extend the replacement cycle of carbon brush 5, so just reach the technique effect that the replacement cycle of carbon brush 5 is long and electricity transformation efficiency is high.

Claims

1. a kind of automobile current generator, including housing, stator module, rotor assembly, carbon brush holder, carbon brush and belt pulley, it is described There is armature spindle on rotor assembly, it is characterised in that：Described carbon brush holder, described carbon brush holder are arranged with described armature spindle Front and back annular array has several carbon brush grooves, on the carbon brush holder carbon brush groove at the positive back side at regular intervals interlock circumference Arrangement, installs described carbon brush in described carbon brush groove, spring is provided with the afterbody of the carbon brush, and the described spring of correspondence sets There is power-assisted torsion spring, there are two elastic foots on described power-assisted torsion spring, two elastic foot is stretched into carbon brush groove, one of elastic foot The bottom of the spring is welded on, another elastic foot is connected to the bottom of carbon brush groove.