CN208939308U - Carbon commutator copper bar skeleton - Google Patents

Abstract

The utility model discloses carbon commutator copper bar skeletons, it is characterized by: being made of carbonaceous circle body and copper hook body, the cylindrical body outer circle of carbonaceous circle body is contact working face of the commutator with carbon brush for electric machine, copper hook body is equipped with multiple, make circumference laying in the upper surface of carbonaceous circle body, the lower part soldering of copper hook body is fixed on the upper surface of carbonaceous circle body, and the top of copper hook body has bonding wire crotch.The utility model is exclusively used in the production of carbon commutator, and the additive that can avoid in fuel oil causes to corrode to carbon commutator, improves fuel pump service life.

Description

Carbon commutator copper bar skeleton

Technical field:

The utility model relates to a kind of commutators, and in particular to a kind of copper bar skeleton of carbon commutator.

Background technique:

Commutator is mainly used on various motors, the motor of fuel pump, due to using under fuel oil environment, and in fuel oil The surface of the copper commutator segment of commutator can inevitably be made added with alcohols materials, these alcohols materials such as some ethyl alcohol At corrosion, so seriously affecting the service life of fuel oil pump motor.The etching problem for solving carbon commutator, is actually wanted Solve the etching problem of the copper bar skeleton of carbon commutator.

Summary of the invention:

In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of production for being exclusively used in carbon commutator, The additive that can avoid in fuel oil causes to corrode to carbon commutator, improves the carbon commutator copper bar skeleton of fuel pump service life.

The utility model adopts the following technical scheme that complete:

Carbon commutator copper bar skeleton, it is characterised in that: be made of carbonaceous circle body and copper hook body, the cylinder of carbonaceous circle body External circle is contact working face of the commutator with carbon brush for electric machine, and copper hook body is equipped with multiple, is made in the upper surface of carbonaceous circle body Circumference is laid, and the lower part soldering of copper hook body is fixed on the upper surface of carbonaceous circle body, and the top of copper hook body has bonding wire Crotch.

The carbon commutator copper bar skeleton of above-mentioned technical proposal, carbonaceous circle body in conjunction with the phenolic moulding powder matrix with commutator, Outer circle opens up the commutator segment that carbonaceous material is become after insulation tank, after commutator is installed in fuel pump, just only carbonaceous material The commutator segment of material it is exposed and with fuel contacts (copper hook body makees encapsulation process with motor-spin-coil), so The alcohols material in fuel oil is avoided to cause to corrode to the surface of commutator, to improve the service life of fuel oil pump motor.

To guarantee there are enough bond strengths between copper bar skeleton and the phenolic moulding powder matrix of commutator, preferably, described The internal circular surfaces circumference uniform distribution of carbonaceous circle body is equipped with more I-shaped feet, and I-shaped foot and the carbonaceous circle body are integrated knot Structure, the quantity of I-shaped foot are identical as the quantity of the copper hook body.

Detailed description of the invention:

Fig. 1 is the top-direction view of carbon commutator copper bar skeleton,

Fig. 2 is the top-direction view of carbonaceous circle body in Fig. 1,

Fig. 3 is the A-A view of Fig. 1.

Specific embodiment:

As shown, the carbon commutator copper bar skeleton of the utility model, is made of, carbon carbonaceous circle body 1 and copper hook body 2 Matter circle body 1 uses graphite fluoride composite material, and the cylindrical body outer circle of carbonaceous circle body 1 is contact work of the commutator with carbon brush for electric machine Face, the internal circular surfaces circumference uniform distribution of the carbonaceous circle body 1 are equipped with 14 I-shaped feet 4, I-shaped foot 4 and the carbonaceous circle Body 1 is structure as a whole, the copper hook body 2 be equipped with 14, the upper surface of carbonaceous circle body 1 make circumference lay and with it is described I-shaped foot 4 corresponds, and the distance left between adjacent copper hook body 2 is greater than the insulation tank to be opened up of carbonaceous circle body 1 Width had not only saved copper product but also had facilitated opening up for insulation tank, and the lower part soldering of copper hook body 2 is fixed on the upper of carbonaceous circle body 1 The top of end face, copper hook body 2 has bonding wire crotch 3.

Claims (2)

1. carbon commutator copper bar skeleton, it is characterised in that: be made of carbonaceous circle body and copper hook body, the cylindrical body of carbonaceous circle body Outer circle be contact working face of the commutator with carbon brush for electric machine, copper hook body be equipped with it is multiple, carbonaceous circle body upper surface make justify Zhou Bushe, the lower part soldering of copper hook body are fixed on the upper surface of carbonaceous circle body, and the top of copper hook body is curved with bonding wire Hook.

2. carbon commutator copper bar skeleton as described in claim 1, it is characterised in that: the internal circular surfaces circumference of the carbonaceous circle body Be laid with more I-shaped feet, I-shaped foot is structure as a whole with the carbonaceous circle body, the quantity of I-shaped foot with it is described The quantity of copper hook body is identical.