CN2857280Y

CN2857280Y - Carbon brush base

Info

Publication number: CN2857280Y
Application number: CN 200520142317
Authority: CN
Inventors: 庄斐志
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2007-01-10
Anticipated expiration: 2015-11-25

Abstract

The utility model discloses a carbon brush base which includes a shell. The shell is provided with a carbon brush, an elastic body and a locating member. The shell comprises conducting sheets on the periphery wherein one end of the conducting sheet is connected with power supply. The elastic body has the characters of stable elasticity and fixing force, therefor the carbon brush is effectively pushed out from the shell to ensure the work life and reduce the replacing frequency.

Description

The carbon brush pedestal

Technical field

The utility model relates to a kind of carbon brush pedestal, refers in particular to the carbon brush pedestal that a kind of motivation motor of powering is provided with carbon brush.

Background technology

Motor, be commonly called as motor, be used in various field by people widely, for example: generate electricity, draw water or drive device or the like, yet brush motor then must use carbon brush contact rectification (commutator) to make its internal current commutation, and carbon brush all is to be located at the carbon brush pedestal that is positioned at motor shell one end.

Existing carbon brush pedestal please cooperate with reference to shown in Figure 4, and it has a hollow housing 60, and an end spiral shell of housing 60 is provided with a cap 61, and the other end is provided with an outlet 62;

One conducting strip 70, it is fixedly arranged in the housing 60, and an end of conducting strip 70 is stretched out by outlet 62 places of housing 60, and conducting strip 70 is connected with a conduction ring plate 71 with respect to an end of cap 61;

One carbon brush 80, the one end is pushed against by a spring 81, and the other end of spring 81 and a lamellar body 82 interconnect, and are connected with a lead 83 between carbon brush 80 and the lamellar body 82.

During use, carbon brush 80 can be inserted in the housing 60 by the end that housing 60 is provided with cap 61, carbon brush 80 can be stretched out by outlet 62 places, and is again that cap 61 and housing 60 mutual spiral shells are solid, and lamellar body 82 can be between cap 61 and conduction ring plate 71.

When motor running, carbon brush 80 can be worn away by the commutator of motor gradually, and spring 81 can continue carbon brush 80 can to guarantee so that by releasing in the housing 60 carbon brush 80 and commutator can contact formation one galvanic circle.

When all elastomeric objects are in its elastic limit, its stressed size is directly proportional with the change amount of its length, in other words, when spring 81 was extruded, the deformation meeting that it produced promoted thereupon, and the elasticity that spring 81 is produced also can promote thereupon, and when carbon brush 80 used the initial stage, spring 81 can make it hold more carbon brush 80 in housing 60 as far as possible toward lamellar body 82 extruding, the spring 81 of this moment is the relation of extruding therefore, is maximum and make its elastic force and deformation;

Yet when spring 81 is in the state of elasticity maximum, carbon brush 80 suffered pushing and pressing strength from spring 81 are also maximum, so between carbon brush 80 and the commutator 90 contact will be tight more, the electric weight that produces or export is lifting or maximum thereupon also, yet also can cause carbon brush 80 losses big more.

Please cooperate with reference to shown in Figure 5, after the loss through the end time, carbon brush 80 can be worn and foreshorten to certain length, this moment, spring 81 no longer was subjected to powerful extruding, elastic force is minimum, so just can not form tight the contact between carbon brush 80 and the commutator 90, electric weight thus generated or output also decreases.

Comprehensively above-mentioned, the change meeting of the elastic force size of spring 81 directly influences the exposure level between carbon brush 80 and the commutator 90, the same loss that also can influence carbon brush 80 simultaneously, and this two can influence the size of electric weight, so how to obtain one on average between loss and elasticity, this is must improved problem.

The utility model content

The technical problems to be solved in the utility model is: a kind of carbon brush pedestal is provided, and it can reduce number of times and saving service time that carbon brush is changed, to overcome the aforementioned disadvantages of existing carbon brush pedestal.

For this reason, technological means of the present utility model is to propose a kind of carbon brush pedestal, and it has a hollow housing, and its both ends of the surface are respectively equipped with a posting port and an export, is provided with a slot at the lateral wall of housing, and the inwall place axially spaced-apart of housing is provided with several caulking grooves; One carbon brush, it is arranged in the housing, and an end of carbon brush is stretched out by the export place, and the other end of carbon brush is connected with a lamellar body with lead; One elastomer, it has a reed, and the two ends of reed are connected with a reed end that curls respectively, and reed end and inner walls are in contact with one another, and an end and reed that carbon brush is connected with lead push against mutually; Positioning piece, it has opening, keeper can be disposed in the housing by the caulking groove of housing, the edge of the opening of keeper can push against mutually with elastomeric reed, edge in the opening of keeper is connected with the stop section, the stop section can push against mutually with elastomeric reed end, and elastomer is fixed in housing; One conducting strip, the one end is connected with electric sheet with lead, and conducting strip is arranged in the slot of housing, and the lamellar body of electric sheet, carbon brush and keeper three pile up in regular turn; One cap, it can cover mutually with the end that housing has a posting port, and cap can be fixed in lamellar body, keeper, elastomer and the carbon brush of electric sheet, carbon brush in the housing.

Aforesaid carbon brush pedestal, wherein, the dual-side of described conducting strip convexes into the portion of ending that can fasten mutually with the edge of described slot respectively.

Aforesaid carbon brush pedestal, wherein, described keeper is that a section is the lamellar body of ㄇ type.

Aforesaid carbon brush pedestal, wherein, an end of described housing and be provided with the screw thread that can screw togather mutually adjacent to the periphery wall place of posting port and the medial surface of this cap.

Aforesaid carbon brush pedestal, wherein, the caulking groove of described housing is with respect to posting port and export position.

Aforesaid carbon brush pedestal, wherein, the free end of described conducting strip can be towards tilting away from housing direction.

When using, elastomer has stable decide power and flexible characteristic, so carbon brush can effectively be released housing by elastomer, and make carbon brush in the contact rectification period of the day from 11 p.m. to 1 a.m by minimum abrasion, so just can guarantee carbon brush useful life and electric stablizing.

In addition, electric sheet and conducting strip are to interconnect with lead, and lead has preferable ductility, even when changing carbon brush, lead is through repeatedly bending, and lead also can not rupture, and so can guarantee the usability of carbon brush pedestal.

The utility model has overcome the defective of existing carbon brush pedestal, it is to be provided with the carbon brush that is pushed against by elastomer in a hollow housing, elastomer has can be not still can not provide the characteristic of stablizing elasticity and deciding power because of the change of decrement, therefore can design in a rational elastic range makes carbon brush wear away minimum in the contact rectification period of the day from 11 p.m. to 1 a.m, and then guarantee carbon brush useful life and electric stable, in addition, be connected with lead between conducting strip and the electric sheet with preferable ductility, therefore lead is again through after repeatedly bending, lead still can keep its integrality, and the carbon brush pedestal can be from the outside carbon brush of changing of motor, just replace carbon brush and just can make motor possess its user mode, and whole design can reduce number of times and saving service time that carbon brush is changed.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is a profile of the present utility model.

Fig. 3 is a user mode section reference diagram of the present utility model.

Fig. 4 is the profile of existing carbon brush pedestal.

Fig. 5 is another profile of existing carbon brush pedestal.

The drawing reference numeral explanation:

10, housing 101, screw thread

11, posting port 12, export

13, fixing hole 14, cap

141, internal thread 15, caulking groove

20, carbon brush 21, lead

22, lamellar body 30, elastomer

31, reed 32, reed end

40, keeper 41, opening

42, stop section 50, conducting strip

51, end portion 52, lead

53, electric sheet 60, housing

61, cap 62, outlet

70, conducting strip 71, conduction ring plate

80, carbon brush 81, spring

82, lamellar body 83, lead

90, commutator

Embodiment

The utility model is a kind of carbon brush pedestal, please cooperate with reference to Figure 1 and Figure 2, it has a hollow housing 10, the both ends of the surface of housing 10 are respectively equipped with a posting port 11 and an export 12, the inwall place of housing 10 and be provided with several caulking grooves 15 with respect to posting port 11 and export 12 position axially spaced-aparts, one end of housing 10 and be provided with screw thread 101 adjacent to the periphery wall place of posting port 11, the lateral wall of housing 10 is provided with a slot 13;

One carbon brush 20, it is arranged in the housing 10, and an end of carbon brush 20 is stretched out by export 12 places, and the other end of carbon brush 20 is connected with a lamellar body 22 with lead 21;

One elastomer 30, it has a reed 31, and the two ends of reed 31 are connected with a reed end 32 that curls respectively, and reed end 32 is in contact with one another with housing 30 inwalls, and an end and reed 31 that carbon brush 20 is connected with lead 21 push against mutually;

Positioning piece 40, it is that a section is the lamellar body of ㄇ type, keeper 40 can be disposed in the housing 10 by the caulking groove 15 of housing 10, the edge that keeper 40 has an end of opening 41 can push against mutually with the reed 31 of elastomer 30, and be connected with stop section 42 in the edge of the opening 41 of keeper 40, stop section 42 can push against mutually with the reed end 32 of elastomer 30, and elastomer 30 is fixed in housing 10;

One conducting strip 50, its dual-side has convexed into only portion 51 respectively, one end of conducting strip 50 is connected with an electric sheet 53 with lead 52, conducting strip 50 is arranged in the slot 13 of housing 10, and the free end of conducting strip 50 can be towards tilting away from housing 10 directions, so that interconnect with other lead, ending portion 51 can fasten mutually with the edge of slot 13, whereby conducting strip 50 is fixed in the slot 13, and the lamellar body 22 of electric sheet 53, carbon brush 20 piles up in regular turn with keeper 40 threes;

One cap 14, it can cover mutually with the end that housing 10 has a posting port 11, the medial surface of cap 14 is provided with the internal thread 141 that can screw togather mutually with housing 10 screw threads 101, and cap 14 can be fixed in lamellar body 22, keeper 40, the elastomer 30 of electric sheet 53, carbon brush 20 in the housing 10 with carbon brush 20.

During actual the use, please cooperate with reference to figure 2 and shown in Figure 3, elastomer 30 has exportable stable decide power and flexible characteristic, therefore carbon brush 20 can effectively be released housing 10 by the reed 31 of elastomer 30, and carbon brush 20 is worn away uniformly in the contact rectification period of the day from 11 p.m. to 1 a.m, so just can guarantee the useful life of carbon brush 20 and electric stability.

And when carbon brush 20 was subjected to pushing from the outside, carbon brush 20 can be pressed in the keeper 40 by opening 41 together with reed 31.

When changing carbon brush 20, cap 14 can be taken off by housing 10 places, and electric sheet 52, lamellar body 22, keeper 40, elastomer 30 and carbon brush 20 will be separated from each other, so can be by taking out in the housing 10 with keeper 40, elastomer 30 and carbon brush 20, and change another carbon brush 20, in regular turn elastomer 30 and keeper 40 grades are put back in the housing 10 again.

Because electric sheet 53 is to interconnect with lead 52 with conducting strip 50, and lead 52 has preferable ductility, promptly when changing carbon brush 20, lead 52 is through repeatedly bending, and lead 52 also can not rupture, and so can guarantee the usability of carbon brush pedestal.

Comprehensive above institute says, elastomer 30 can be stable decides power and elasticity with carbon brush 20 release housings 10, but and make carbon brush 20 even wears, so guarantee the useful life of carbon brush 20 and electric stability.

In addition, lead 52 has preferable ductility, thus can not produce situation about breaking away from mutually between conducting strip 50 and the electric sheet 53 through repeatedly bending, so the carbon brush pedestal just can be guaranteed its usability.

Claims

1. carbon brush pedestal is characterized in that having:

One hollow housing, its both ends of the surface are respectively equipped with a posting port and an export, and the lateral wall of described housing is provided with a slot, and the inwall place axially spaced-apart of housing is provided with several caulking grooves;

One carbon brush, it is arranged in the above-mentioned housing, and an end of this carbon brush is stretched out by the export place, and the other end of carbon brush is connected with a lamellar body with lead;

One elastomer, it has a reed, and the two ends of this reed are connected with a reed end that curls respectively, and reed end and above-mentioned inner walls are in contact with one another setting, and an end and this reed that described carbon brush is connected with lead push against setting mutually;

Positioning piece, it has opening, this keeper is disposed in the housing by the caulking groove of housing, the edge of the opening of keeper and elastomeric reed push against mutually, and the edge of the opening of keeper is connected with the stop section, this stop section and elastomeric reed end push against mutually, and elastomer is fixed in the housing;

One conducting strip, the one end is connected with electric sheet with lead, and described conducting strip is arranged in the slot of above-mentioned housing, and the lamellar body and the keeper three of described electric sheet, carbon brush pile up setting in regular turn;

One cap, the end that itself and above-mentioned housing have posting port covers mutually, and this cap is fixed in lamellar body, keeper, elastomer and the carbon brush of electric sheet, carbon brush in the housing.

2. carbon brush pedestal as claimed in claim 1 is characterized in that, the dual-side of described conducting strip convexes into the portion of ending that can fasten mutually with the edge of described slot respectively.

3. carbon brush pedestal as claimed in claim 2 is characterized in that, described keeper is that a section is the lamellar body of ㄇ type.

4. carbon brush pedestal as claimed in claim 3 is characterized in that, an end of described housing and be provided with the screw thread that can screw togather mutually adjacent to the periphery wall place of posting port and the medial surface of this cap.

5. carbon brush pedestal as claimed in claim 4 is characterized in that, the caulking groove of described housing is with respect to posting port and export position.

6. carbon brush pedestal as claimed in claim 5 is characterized in that the free end of described conducting strip is obliquely installed towards the direction away from described housing.