CN211017684U

CN211017684U - Carbon plane commutator

Info

Publication number: CN211017684U
Application number: CN201922290702.9U
Authority: CN
Inventors: 陈德雅
Original assignee: Ruian Deya Electronic Co ltd
Current assignee: Ruian Deya Electronic Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-07-14
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a carbon plane commutator, including copper skeleton, carbon piece and bakelite powder base member, its characterized in that: copper skeleton includes the circular bottom plate of bottom, the outer periphery of circular bottom plate upwards is equipped with the thin wall sleeve pipe, the thin wall sleeve pipe is cut apart into a plurality of arc lamellar bodies at the same circumference angle by a plurality of breach groove circumference equal divisions, the outside bending type in top of arc lamellar body forms the bonding wire crotch of carbon plane commutator, the medial surface of arc lamellar body is equipped with the outside hook of die-cut formation in the root position that is close to circular bottom plate, correspond every breach groove, a plurality of piece insulation ducts are milled out with milling cutter on the circular bottom plate, the up end of circular bottom plate is equipped with a plurality of reinforcing ring dogs around its centre bore position, the inner circle of reinforcing ring is embraced the reinforcing ring dog from the outside direction, the top of reinforcing ring dog is equipped with the bending and compresses tightly the. The utility model discloses simple processing forms the copper skeleton of carbon plane commutator behind the fashioned copper shell brazing carbon piece of cold-heading to utensil reinforcing ring design, simple structure intensity is high.

Description

Carbon plane commutator

Technical Field

The utility model relates to an improvement invention of a carbon plane commutator.

Background

Traditional carbon plane commutator, including copper skeleton, carbon piece and bakelite powder base member, the carbon piece is brazed and is fixed at the bottom terminal surface of copper skeleton, and copper skeleton and bakelite powder base member are integrative to be pressed and injected the shaping. The copper framework has the disadvantages that the copper framework generally adopts a single sheet body splicing structure and needs to be subjected to complicated sheet arrangement operation; in addition, the carbon planar commutator is not provided with the reinforcing ring, even if the reinforcing ring is designed, the reinforcing ring cannot be effectively compressed and positioned in the bakelite powder substrate of the carbon planar commutator, and when the carbon planar commutator is subjected to injection molding by an injection molding die, the reinforcing ring is easy to separate from the positioning step and loses the reinforcing effect. Therefore, the carbon plane commutator in the prior art has the defects of complex structure and difficulty in ensuring the strength.

Disclosure of Invention

In view of the deficiency of the prior art, the to-be-solved technical problem of the utility model is to provide a simple processing forms copper skeleton behind the fashioned copper shell brazing carbon piece of cold-heading to utensil reinforcing ring design, the high carbon planar commutator of simple structure intensity.

The utility model adopts the following technical proposal to complete:

carbon planar commutator, including copper skeleton, carbon piece and bakelite powder base member, the carbon piece is brazed and is fixed at the bottom terminal surface of copper skeleton, and the shaping of pressing injection molding, its characterized in that are integrative to copper skeleton and bakelite powder base member: copper skeleton includes the circular bottom plate of bottom, the outer periphery of circular bottom plate upwards is equipped with the thin wall sleeve pipe, the thin wall sleeve pipe is cut apart into a plurality of arc lamellar bodies at the same circumference angle by a plurality of breach groove circumference equal divisions, the outside bending type in top of arc lamellar body forms the bonding wire crotch of carbon plane commutator, the medial surface of arc lamellar body is equipped with the outside hook of die-cut formation in the root position that is close to circular bottom plate, correspond every breach groove, a plurality of piece insulation ducts are milled out with milling cutter on the circular bottom plate, the up end of circular bottom plate is equipped with a plurality of reinforcing ring dogs around its centre bore position, the inner circle of reinforcing ring is embraced the reinforcing ring dog from the outside direction, the top of reinforcing ring dog is equipped with the bending and compresses tightly the.

Above-mentioned technical scheme's carbon plane commutator, copper framework are with the whole shaping of cold-heading mode, then die-cut outside hook, processing dead slot and place the anchor ring, are equipped with the anchor ring dog specially in the copper framework and carry out the inner circle location to the anchor ring to the bending deformation through anchor ring dog top compresses tightly the anchor ring of location, so, the utility model discloses a carbon plane commutator not only the structure is more simple, can ensure the improvement of intensity moreover.

Preferably, the root part of the inner side surface of the arc sheet body is a thickened part of the connected arc sheet body before the outer side hook is punched, and the circular bottom plate, the arc sheet body and the reinforcing ring check block are cold-heading members formed by integrated cold heading.

Preferably, the number of the reinforcing ring stoppers is the same as that of the outer hooks and corresponds to that of the outer hooks one by one.

Drawings

The utility model discloses there is following figure:

figure 1 is a side view in the direction of the present invention,

figure 2 is a bottom view in elevation of figure 1,

figure 3 is an axial cross-sectional view of figure 1,

FIG. 4 is a side view of the copper skeleton after cold heading,

figure 5 is a top view in elevation of figure 4,

fig. 6 is an axial cross-sectional view of fig. 4.

Detailed Description

As shown in the figure, the carbon plane commutator of the utility model comprises a copper framework, a carbon sheet 6 and a bakelite powder base body 1, the carbon sheet 6 is fixed on the bottom end surface of the copper framework by brazing, the copper framework and the bakelite powder base body 1 are molded by integral injection molding, the copper framework comprises a circular bottom plate 5 at the bottom, a thin-wall sleeve is upwards arranged on the outer circumference of the circular bottom plate 5, the thin-wall sleeve is equally divided into eight arc-shaped sheet bodies 3 with the same circumferential angle by eight gap grooves 11, the top of the arc-shaped sheet bodies 3 is processed to narrow and is outwards bent to form a hook welding line 2 of the carbon plane commutator, the inner side surface of the arc-shaped sheet body 3 is provided with an outer side hook 10 formed by punching at the position close to the root of the circular bottom plate 5, the root of the inner side surface of the arc-shaped sheet body 3 is a thickened part 12 (shown in the figure 6) of the connected arc-shaped sheet body before the outer, the upper end face of circular bottom plate 5 is equipped with eight reinforcing ring dog 7 around its centre bore 13 position, and reinforcing ring dog 7 set up quantity and outside hook 10 the same and one-to-one, and reinforcing ring dog 7 is embraced from the outside direction to the inner circle of reinforcing ring 9, and the top of reinforcing ring dog 7 is equipped with crooked 8 and compresses tightly the location to reinforcing ring 9, circular bottom plate 5, arc lamellar body 3, reinforcing ring dog 7 are fashioned cold-heading component of integrative cold-heading.

Claims

1. Carbon planar commutator, including copper skeleton, carbon piece and bakelite powder base member, the carbon piece is brazed and is fixed at the bottom terminal surface of copper skeleton, and the shaping of pressing injection molding, its characterized in that are integrative to copper skeleton and bakelite powder base member: copper skeleton includes the circular bottom plate of bottom, the outer periphery of circular bottom plate upwards is equipped with the thin wall sleeve pipe, the thin wall sleeve pipe is cut apart into a plurality of arc lamellar bodies at the same circumference angle by a plurality of breach groove circumference equal divisions, the outside bending type in top of arc lamellar body forms the bonding wire crotch of carbon plane commutator, the medial surface of arc lamellar body is equipped with the outside hook of die-cut formation in the root position that is close to circular bottom plate, correspond every breach groove, a plurality of piece insulation ducts are milled out with milling cutter on the circular bottom plate, the up end of circular bottom plate is equipped with a plurality of reinforcing ring dogs around its centre bore position, the inner circle of reinforcing ring is embraced the reinforcing ring dog from the outside direction, the top of reinforcing ring dog is equipped with the bending and compresses tightly the.

2. A carbon planar commutator as defined in claim 1, wherein: the root of the inner side surface of the arc sheet body is a thickened part of the connected arc sheet body before the outer side hook is punched, and the circular bottom plate, the arc sheet body and the reinforcing ring check block are integrated into a cold heading member for forming cold heading.

3. A carbon planar commutator as claimed in claim 1 or 2, wherein: the number of the reinforcing ring stop blocks is the same as that of the outer side hooks and corresponds to that of the outer side hooks one by one.