CN206542281U - A kind of clean robot motor - Google Patents

Abstract

The utility model provides a kind of clean robot motor, including being fixed on the carbon brush supports being oppositely arranged on electric motor end cap with commutator, the carbon brush supports include holder and lower retainer, the holder mutually snaps together the cavity to be formed and house carbon brush with lower retainer, it is provided with the cavity and forces the spring that carbon brush is contacted with commutator, the spring is in compressive state when carbon brush is contacted with commutator, and length of spring when being compressed is worn and torn when carbon brush is contacted with the commutator of motor and become larger with carbon brush length.The utility model is defined by using spring structure to the installation of carbon brush, further increase carbon brush length, is improved carbon brush service life, is reduced maintenance of motor cost.

Description

A kind of clean robot motor

Technical field

The utility model is related to a kind of clean robot motor.

Background technology

Motor refers to a kind of calutron that electric energy conversion or transmission are realized according to the law of electromagnetic induction, and it can extensive use In industry and civil area, as applied to electrical equipment or various mechanical power sources.For example, motor can be applied to some family expenses In electrical equipment, the power of work is provided for household electrical appliance.

Energy or signal are transmitted between motor or the fixed part and rotating part of generator or other rotating machineries Device, is usually to add coagulator to be made by pure carbon, external form is usually square, is fixed on shell fragment and shaft contacts friction, and motor turns When dynamic, electric energy is conveyed to coil by commutator, because its main component is carbon, referred to as carbon brush, it be it is easy to wear, Need periodic maintenance to change, and clear up carbon distribution.

Due to existing clean robot, the carbon brush of the motor of such as sweeping robot is fixed by way of riveting or being bonded On carbon brush holder, carbon brush is caused to need to lead when replacing carbon brush holder, increase maintenance cost, and carbon brush abrasion are serious in replacing Shell fragment and shaft contacts are caused, causes to be fixed on the commutator in rotating shaft and is damaged.

Utility model content

The utility model embodiment provides a kind of clean robot motor, to overcome clean robot institute in the prior art The deficiency that the motor used itself is present.

Specifically, the utility model embodiment provides a kind of clean robot motor, including it is fixed on electric motor end cap The carbon brush supports that upper and commutator is oppositely arranged, the carbon brush supports include holder and lower retainer, the holder Or the lower retainer has holding tank, the holding tank has the opening for stretching out carbon brush close to one end of commutator, away from opening One end be provided with baffle plate；The lower retainer is provided through the extension of the holder or the electric motor end cap, the extension Portion makes lower retainer be fixed on the electric motor end cap when bending；The holder mutually snaps together shape with lower retainer Into the cavity for housing carbon brush, provided with the spring that carbon brush is contacted with commutator is forced in the cavity, the spring is in carbon brush with changing It is in compressive state when being contacted to device.

The cell wall thickness of the holding tank is 0.3-3mm.

Further, the holder is provided with adjutage to the lower retainer, is fitted in during the adjutage bending The lower retainer surface.

Further, the lower retainer includes the cover plate being arranged on the holding tank and is fixed on cover plate to extension The conductive arm stretched, the cover plate is provided with the through hole passed through for adjutage.

Further, the holder is located at the electric motor end cap upper surface and following table respectively with the lower retainer Face.

Further, the holder is integrally formed with the electric motor end cap.

Further, the holder and/or the lower retainer include the electric conductor that conductive material is made.

Further, it is less than the flange of spring outer diameter at the opening provided with diameter.

Further, the two ends of the spring are respectively the fixed part fixed with the cavity, and fix the guarantor of carbon brush Hold portion.

Further, the motor includes micromachine.

In the utility model embodiment, have the advantages that：The effective of carbon brush is lengthened by voluntarily stretching for spring Length, and the effective length of spring is controlled, increase the use time of carbon brush, reduce the replacing number of times of carbon brush, reduce maintenance of motor Cost；Simultaneously, moreover it is possible to improve the life-span of motor.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the utility model embodiment, For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings Other accompanying drawings.

Fig. 1 is existing electric motor end cap carbon brush structure schematic diagram；

Fig. 2 is structural upright schematic diagram of the present utility model；

Fig. 3 is structural profile schematic diagram of the present utility model；

Fig. 4 is carbon brush bracket structure schematic diagram of the present utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Cleaning device described herein is not limited to wipe ground dust suction, wipes window type from mobile robot.It is new based on this practicality Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of the utility model protection.

In order to preferably observe carbon brush structure, there is provided show a kind of end cover structure of existing motor to overlook visual angle by such as Fig. 1 View, the electric motor end cap 1 is provided with carbon brush supports 3, through the rotating shaft for having motor in the end cap 1, and configures in rotating shaft Commutator 2.Wherein, groove 11 is provided with along the axis perpendicular to rotating shaft on end cap 1, the two ends of groove 11 are respectively equipped with fixed column 12, carbon brush supports 3 are that one end is fixed in fixed column 12, the elastic arm that the other end deviates to commutator 2；Carbon brush 4 is fixed In carbon brush supports 3 and one end of the CONTACT WITH FRICTION of commutator 2.When motor is rotated, electric energy is conveyed to line by commutator 2 Circle, it is easy to wear, it is necessary to periodic maintenance is changed because the main component of carbon brush 4 is carbon, and clear up carbon distribution.And the structure is used When micro-machine, constrained by elastic arm with commutator support, the length or thickness of carbon brush 4 can not set long, be usually Length or thickness 1.5mm, cause the use time of carbon brush 4 short, change frequent.

Based on problem present in above-mentioned existing carbon brush for electric machine support, the application provides a kind of cleaner in one embodiment The motor used on the similar existing sweeping robot of device people's motor, particularly size, further, micromachine can also refer to Motor of the motor housing diameter in 25-50mm.As to overlook shown in the Fig. 2 at visual angle, a kind of motor end cap structure is configured with commutation The rotating shaft 20 of the motor of device 30 passes through electric motor end cap 10, wherein, electric motor end cap 10 is fixed with symmetrically arranged carbon brush supports 40.

As shown in figure 3, the carbon brush supports 40 include holder 410 and lower retainer 420, holder 410 is protected with lower Hold frame 420 and mutually snap together the cavity 411 to be formed and house carbon brush, interior be provided with of the cavity 411 forces carbon brush 50 and commutator The spring 60 of 30 contacts.Spring 60 is in compressive state when carbon brush 50 is contacted with commutator 30, and length of the spring 60 when being compressed Degree weares and teares when carbon brush 50 is contacted with the commutator 30 of motor and become larger with the length of carbon brush 50.User can be according to spring 60 elastic force or the length of carbon brush 50 are made adjustment, so that carbon brush 50 will not cause commutator 30 inclined when being contacted with commutator 30 Move.

Further, holder 410 has holding tank 411, and the holding tank 411 has close to one end of commutator 30 to be stretched Go out the opening of carbon brush 50, moved away from one end of opening provided with the limited spring 60 of baffle plate 413 to the direction away from commutator 30.Make To be preferred, baffle plate 413 is bent to form by the groove arm of holding tank 411, can be used for the near-end for fixing spring 60, is made close to commutator 30 distal end flexible.

Further, the wall thickness of holding tank or cavity is 0.3-3mm, and the length of carbon brush or thickness can be original structures One times, twice, three times or more.

Further, as shown in figure 4, holder 410 holds down frame 420 provided with adjutage 412, adjutage 412 is curved The surface of lower retainer 420 is fitted in during folding, holder 410 is grouped together into a receipts with lower retainer 420 Hold the cavity (holding tank) 411 of spring 60 and carbon brush 50.

Further, as shown in figure 4, lower retainer 420 includes the cover plate being arranged on holding tank 411 and is fixed on cover plate On the conductive arm 422 that stretches out, the cover plate is provided with the through hole 421 passed through for adjutage 412.Wherein, the shape of through hole 421 With the external shape fits of adjutage 412.

Further, holder 410 is located at the upper and lower surface of electric motor end cap 10 respectively with lower retainer 420.

Further, holder 410 or lower retainer 420 are integrally formed with electric motor end cap 10 in one embodiment, are made Carbon brush bracket structure is simpler, can save the cost of manufacture of carbon brush supports 40.

In one embodiment, to prevent spring from being stretched out from opening, and occur substantial exposure with commutator 30, set at opening There is diameter to be less than the flange (can be back-off) of the external diameter of spring 60, prevent spring 60 from excessively stretching to commutator 30.Similarly, flange can To be arranged on the cavity inner surface that holder 410 and lower retainer 420 are constituted, with the hyper-extended of limited spring 60.

In another embodiment, holder is located at electric motor end cap upper and lower surface, lower guarantor respectively with lower retainer The extension that frame is provided through holder or electric motor end cap is held, the extension makes lower retainer be fixed on electric motor end cap when bending On.

Further, holder described herein and/or lower retainer include the electric conductor that conductive material is made.

Further, one end of spring has the fixed part fixed with cavity, and fixes the maintaining part of carbon brush.

Further, maintaining part includes adapting to the running-on or elastic clip of carbon brush profile.

Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly Interest field, therefore equivalent variations made according to the utility model claim still belong to the scope that the utility model is covered.

Claims (10)

1. a kind of clean robot motor, it is characterised in that including being fixed on what is be oppositely arranged on electric motor end cap with commutator Carbon brush supports, the carbon brush supports include holder and lower retainer, and the holder or the lower retainer, which have, to be held Receive groove, the holding tank has the opening for stretching out carbon brush close to one end of commutator, baffle plate is provided with away from one end of opening；Under described Retainer is provided through the extension of the holder or the electric motor end cap, and the extension fixes lower retainer when bending In on the electric motor end cap；The holder mutually snaps together the cavity to be formed and house carbon brush with lower retainer, described Provided with the spring that carbon brush is contacted with commutator is forced in cavity, the spring is in compressive state when carbon brush is contacted with commutator.

2. clean robot motor according to claim 1, it is characterised in that the cell wall thickness of the holding tank is 0.3-3mm。

3. clean robot motor according to claim 1, it is characterised in that the holder lower is kept to described Erection has adjutage, and the lower retainer surface is fitted in during the adjutage bending.

4. clean robot motor according to claim 1, it is characterised in that the lower retainer includes being arranged at described Cover plate on holding tank is provided with for leading to that adjutage is passed through with the conductive arm stretched out on cover plate, the cover plate is fixed on Hole.

5. clean robot motor according to claim 1, it is characterised in that the holder and the lower retainer It is located at the electric motor end cap upper and lower surface respectively.

6. clean robot motor according to claim 1, it is characterised in that the holder and the electric motor end cap It is integrally formed.

7. clean robot motor according to claim 1, it is characterised in that the holder and/or described lower protect Holding frame includes the electric conductor that conductive material is made.

8. clean robot motor according to claim 1, it is characterised in that be less than spring provided with diameter at the opening The flange of external diameter.

9. clean robot motor according to claim 1, it is characterised in that the two ends of the spring be respectively with it is described The fixed part that cavity is fixed, and fix the maintaining part of carbon brush.

10. clean robot motor according to claim 1, it is characterised in that the motor includes micromachine.