CN208656557U - A kind of low noise direct current generator - Google Patents

Abstract

The utility model discloses a kind of low noise direct current generators, including direct current generator ontology, the direct current generator ontology includes rear cover, the first oiliness bearing, brush, rotor, stator and the second oiliness bearing, the left side of first oiliness bearing and the inside of rear cover are socketed, the inside of rear cover is through on the left of the brush, and the both ends on the left of brush are socketed with the top and bottom on the right side of rear cover respectively, the left side of second oiliness bearing and the inside of stator are socketed.The mutual cooperation that the utility model passes through setting rear cover, the first oiliness bearing, brush, rotor, stator and the second oiliness bearing, solve the problems, such as that noise is excessive when the use of existing direct current generator, noise is small when in use for the direct current generator ontology, to reduce the influence to surrounding resident quality of life, the influence to user's hearing is also reduced simultaneously, to improve the practicability of direct current generator ontology, therefore it is suitble to promote the use of.

Description

A kind of low noise direct current generator

Technical field

The utility model relates to DC motor technology field, specially a kind of low noise direct current generator.

Background technique

Direct current generator, which refers to, can be converted into mechanical energy (dc motor) by direct current energy or convert mechanical energy into direct current The rotating electric machine of electric energy (dc generator), it is to be able to achieve direct current energy and motor that mechanical energy is converted mutually, when it makees electricity Motivation is dc motor when running, and converts electrical energy into mechanical energy, makees when generator operation to be dc generator, by mechanical energy Be converted to electric energy.

With the development of science and technology, the use of direct current generator is also more and more, but noise mistake when the use of existing direct current generator Greatly, to influence the quality of life of surrounding resident when direct current generator uses, while use can also listen user for a long time Power impacts, to reduce the practicability of direct current generator, therefore is not suitable for promoting the use of.

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of low noise direct current generator, and it is small etc. excellent to have noise Point solves the problems, such as that noise is excessive when the use of existing direct current generator.

(2) technical solution

To realize the small purpose of above-mentioned noise, the utility model is provided the following technical solutions: a kind of low noise direct current generator, Including direct current generator ontology, the direct current generator ontology includes that rear cover, the first oiliness bearing, brush, rotor, stator and second contain Oil bearing, the left side of first oiliness bearing and the inside of rear cover are socketed, and the inside of rear cover is through on the left of the brush, And the both ends on the left of brush are socketed with the top and bottom on the right side of rear cover respectively, the left side of second oiliness bearing and stator Inside socket, the right side of the rotor are socketed through stator and with the inside of the second oiliness bearing, and the left side of the stator is with after The right side of lid is clamped.

Preferably, the brushing piece of the brush is cut into 5, and 5 brushing piece sizes are identical.

Preferably, the quantity of the brush is two, and two brushes are symmetrical set about rear cover.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of low noise direct current generator, have it is following the utility model has the advantages that

1, the utility model passes through the mutual of rear cover, the first oiliness bearing, brush, rotor, stator and the second oiliness bearing Cooperation solves the problems, such as that noise is excessive when the use of existing direct current generator, and noise is small when in use for the direct current generator ontology, from And the influence to surrounding resident quality of life is reduced, while also reducing the influence to user's hearing, to improve straight The practicability of motor body is flowed, therefore is suitble to promote the use of.

2, the utility model passes through the setting of the first oiliness bearing and the second oiliness bearing, and reducing direct current generator ontology makes The noise that used time generates, avoids the excessive situation of plain bearing frictional noise, by the setting of brush, alleviates brush and change To the frictional force of device, to reduce noise when direct current generator ontology uses.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

In figure: 1 direct current generator ontology, 2 rear covers, 3 first oiliness bearings, 4 brushes, 5 rotors, 6 stators, 7 second oil-containing axis It holds.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, a kind of low noise direct current generator, including direct current generator ontology 1, direct current generator ontology 1 include rear cover 2, the first oiliness bearing 3, brush 4, rotor 5, stator 6 and the second oiliness bearing 7, left side and the rear cover 2 of the first oiliness bearing 3 Inside socket, the left side of brush 4 are through to the inside of rear cover 2, and the both ends in 4 left side of the brush top with 2 right side of rear cover respectively It is socketed with bottom, the brushing piece of brush 4 is cut into 5, and 5 brushing piece sizes are identical, and the quantity of brush 4 is two, and two electricity Brush 4 is symmetrical set about rear cover 2, by the setting of brush 4, the frictional force of brush 4 Yu commutator is alleviated, to reduce Noise when direct current generator ontology 1 uses, the left side of the second oiliness bearing 7 and the inside of stator 6 are socketed, and the right side of rotor 5 is passed through It wears stator 6 and is socketed with the inside of the second oiliness bearing 7, pass through the setting of the first oiliness bearing 3 and the second oiliness bearing 7, drop The noise that low direct current generator ontology 1 generates when using, avoids the excessive situation of plain bearing frictional noise, a left side for stator 6 Side and the right side of rear cover 2 are clamped, and pass through rear cover 2, the first oiliness bearing 3, brush 4, rotor 5, stator 6 and the second oiliness bearing 7 Mutual cooperation, solve the problems, such as existing direct current generator use when noise it is excessive, which makes an uproar when in use Sound is small, to reduce the influence to surrounding resident quality of life, while the influence to user's hearing is also reduced, to mention The high practicability of direct current generator ontology 1, therefore be suitble to promote the use of.

When in use, by the setting of the first oiliness bearing 3 and the second oiliness bearing 7, reducing direct current generator ontology 1 makes The noise that used time generates, avoids the excessive situation of plain bearing frictional noise, by the setting of brush 4, alleviate brush 4 with The frictional force of commutator has reached the direct current generator ontology 1 to reduce noise when direct current generator ontology 1 uses at this time The small advantage of noise.

In conclusion the low noise direct current generator, passes through rear cover 2, the first oiliness bearing 3, brush 4, rotor 5,6 and of stator The mutual cooperation of second oiliness bearing 7 solves the problems, such as that noise is excessive when the use of existing direct current generator.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of low noise direct current generator, including direct current generator ontology (1), it is characterised in that: direct current generator ontology (1) packet Rear cover (2), the first oiliness bearing (3), brush (4), rotor (5), stator (6) and the second oiliness bearing (7) are included, described first contains The left side of oil bearing (3) and the inside of rear cover (2) are socketed, and the inside of rear cover (2), and electricity are through on the left of the brush (4) Brush (4) on the left of both ends respectively on the right side of rear cover (2) top and bottom be socketed, the left side of second oiliness bearing (7) with The inside of stator (6) is socketed, and the right side of the rotor (5) is socketed through stator (6) and with the inside of the second oiliness bearing (7), The left side of the stator (6) and the right side of rear cover (2) are clamped.

2. a kind of low noise direct current generator according to claim 1, it is characterised in that: the brushing piece of the brush (4) is cut At 5, and 5 brushing piece sizes are identical.

3. a kind of low noise direct current generator according to claim 1, it is characterised in that: the quantity of the brush (4) is two It is a, and two brushes (4) are symmetrical set about rear cover (2).