CN202014013U - Thermometal commutating segment - Google Patents
Thermometal commutating segment Download PDFInfo
- Publication number
- CN202014013U CN202014013U CN2011200602879U CN201120060287U CN202014013U CN 202014013 U CN202014013 U CN 202014013U CN 2011200602879 U CN2011200602879 U CN 2011200602879U CN 201120060287 U CN201120060287 U CN 201120060287U CN 202014013 U CN202014013 U CN 202014013U
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- China
- Prior art keywords
- commutator segment
- bimetallic
- dovetail groove
- main body
- segment body
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Abstract
The utility model discloses a thermometal commutating segment comprising a commutating segment main body; metallic cooper is arranged on the position contacted with an electric brush on the commutating segment main body; the commutating segment main body comprises a working section directly contacted with the electric brush and a fixed pin fixed on a bakelite main body; in the thermometal commutating segment provided by the utility model, the metallic cooper layer is arranged on the commutating segment main body so as to increase the conducting performance; the commutating segment main body is made of aluminum of which the expansion coefficient is similar to that of the cooper, so that the mass of the commutating segment is smaller, and the cost is lower; meanwhile, the centrifugal force and the mass are in proportional relation, so that the load of a reverser is smaller, the mechanical performance of the reverser is improved, and higher revolving speed can be designed to meet requirements of high-speed motor.
Description
Technical field
The utility model relates to the commutator segment on a kind of commutator, is specifically related to a kind of bimetallic commutator segment.
Background technology
Commutator is the critical piece in the motor, and it mainly is made up of the bakelite main body of neck bush, neck bush periphery and the copper bar commutator segment that is arranged in bakelite main body periphery.Commutator segment is all processed by copper material usually, and waste of material is many, and cost is bigger.
The bimetallic commutator segment of employing is also arranged in recent years, promptly close material with the copper material coefficient of expansion, can reduce cost, but the quality of commutator segment is heavier, because the relation that centrifugal force is directly proportional with the quality of copper bar, the commutator that the more commutator segment of utilization copper material is formed, mechanical strength is bigger, damage to commutator is bigger, it as the patent No. 200620070423.1 utility model patent, the active section (1) that provides a kind of bimetallic commutator segment to comprise to expose outside the bakelite main body and stretch into fixing feet (2) in the bakelite main body, described commutator segment has two parts (3 up and down, 4) form, the latter half (4) comprises fixing feet (2) at least, and the latter half of described bimetallic commutator segment has adopted metal material close with the copper coefficient of expansion and that price is lower.Adopt the commutator segment of said structure, because the working face of commutator segment and brush still is a fine copper, the quality of commutator segment is still heavier, and cost is higher.
Therefore, a kind of electric conductivity is better, lighter weight, and lower-cost bimetallic commutator segment is demanded urgently proposing.
The utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of electric conductivity better, lighter weight, lower-cost bimetallic commutator segment.
For achieving the above object, the technical solution of the utility model is as follows: a kind of bimetallic commutator segment, comprise the commutator segment body, the part that contacts with brush on described commutator segment body is provided with metallic copper, and described commutator segment body comprises active section that directly contacts with brush and the fixing feet that is fixed on the bakelite main body.
Preferably, be coated with layer of metal copper layer on the described commutator segment body.
Preferably, be provided with first dovetail groove, be provided with first projection corresponding with the described first dovetail groove position and that be complementary with it on described metal copper layer top on the top of the described active section of described commutator segment body.
Preferably, be provided with second dovetail groove, be provided with second projection corresponding with the described second dovetail groove position and that be complementary with it in described metal copper layer bottom in the bottom of the described fixing feet of described commutator segment body.
Preferably, be provided with the 3rd dovetail groove and the 4th dovetail groove in the both sides of the described active section of described commutator segment body; On described copper layer, be provided with the 3rd projection that is complementary with it, on described copper layer, be provided with the 4th projection that is complementary with it with the corresponding position of described the 4th dovetail groove with the corresponding position of described the 3rd dovetail groove.
Preferably, described commutator segment body top is curved, is set to arc with the corresponding described copper layer of described arc body position.
Preferably, the described active section of described commutator segment body is trapezoidal.
Preferably, be provided with boss in the described fixing feet bottom of described commutator segment.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: a kind of bimetallic commutator segment, comprise the commutator segment body, the part that contacts with brush on described commutator segment body is provided with metallic copper, and described commutator segment body comprises active section that directly contacts with brush and the fixing feet that is fixed on the bakelite main body; Adopt bimetallic commutator segment provided by the utility model, described commutator segment body is provided with metal copper layer, has improved electric conductivity; Described commutator segment body is made by the aluminum that is close with the coefficient of expansion and copper, make that the commutator segment quality is lighter, cost is less, simultaneously because the relation that centrifugal force is directly proportional with quality, make the load of commutator diminish, the mechanical performance of commutator improves like this, can design the requirement that higher rotating speed satisfies high-speed electric expreess locomotive.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the profile of a kind of bimetallic commutator segment of the utility model embodiment 1;
Fig. 2 is the structural representation of a kind of bimetallic commutator segment of the utility model embodiment 1;
Fig. 3 is the profile of a kind of bimetallic commutator segment of the utility model embodiment 2;
Fig. 4 is the structural representation of the commutator that is made of a kind of bimetallic commutator segment of the utility model embodiment 2;
Fig. 5 is the profile of a kind of bimetallic commutator segment of the utility model embodiment 3.
The represented corresponding component title of numeral among the figure:
1. commutator segment body 2. metal copper layer 3. first dovetail grooves 4. first projections 5. second dovetail grooves 6. second projections 7. the 3rd dovetail groove 8. the 3rd projection 9. the 4th dovetail groove 10. the 4th projection 11. boss
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of electric conductivity better, lighter weight, lower-cost bimetallic commutator segment.
As Fig. 1 and as shown in Figure 2, a kind of bimetallic commutator segment comprises commutator segment body 1, and described commutator segment body 1 comprises the active section (not shown) that directly contacts with brush and is fixed on fixing feet (not shown) on the bakelite main body; The part that contacts with brush on described commutator segment body 1 is provided with metallic copper, and described commutator segment body 1 is that the aluminum that adopts the coefficient of expansion and copper to be close is made, and is coated with layer of metal copper layer 2 on the described commutator segment body 1.
Guaranteeing that the part that commutator segment contacts with brush still adopts copper product, under the situation still identical with former fine copper commutator segment with the break-in between the brush, the commutator segment body adopts aluminum, can save the copper resource, saves cost; Simultaneously, because the density of aluminium is 30% of copper density, in the commutator segment with volume, commutator segment body 1 adopts aluminum, can reduce copper bar weight greatly; In addition, commutator belongs to the object that runs up in motor, change more than 35000 commentaries on classics of scooter per minute, centrifugal force is directly proportional with the quality of commutator segment, described bimetallic commutator segment is owing to alleviated the quality of commutator segment under equal volume, the mechanical performance of commutator improves, and therefore can design the requirement that higher rotating speed satisfies high-speed electric expreess locomotive.
Described commutator segment body 1 top is curved, is set to arc with the corresponding described copper layer 2 in described arc body 1 position, and the described active section of described commutator segment body 1 is trapezoidal, is provided with boss 11 in the described fixing feet bottom of described commutator segment 1.
In the present embodiment, described commutator segment body 1 combines with metallic copper and has adopted the clad welded manufacturing technology, the process technology of present embodiment is: the outer surface that high-quality silver-bearing copper is coated on one heart the aluminium core, and make the firm interatomic metallurgical binding of formation between copper layer and the aluminium core, make two kinds of different metal materials be combined into indivisible integral body, can as the single wire of processing, make drawing and annealing in process, copper and aluminium reducing in proportion in the drawing process, copper layer volume ratio then keeps invariable relatively, save the copper resource, reduced cost.
Adopt technique scheme, the beneficial effect of present embodiment is: a kind of bimetallic commutator segment, comprise commutator segment body 1, the part that contacts with brush on described commutator segment body 1 is provided with metallic copper, and described commutator segment body comprises active section that directly contacts with brush and the fixing feet that is fixed on the bakelite main body; Adopt bimetallic commutator segment provided by the utility model, described commutator segment body is provided with metal copper layer 2, has improved electric conductivity; Described commutator segment body 1 is made by the aluminum that is close with the coefficient of expansion and copper, make that the commutator segment quality is lighter, cost is less, simultaneously because the relation that centrifugal force is directly proportional with quality, make the load of commutator diminish, the mechanical performance of commutator improves like this, can design the requirement that higher rotating speed satisfies high-speed electric expreess locomotive.
As Fig. 3 and as shown in Figure 4, all the other are identical with embodiment 1, difference is, top at the described active section of described commutator segment body 1 is provided with first dovetail groove 3, be provided with first projection 4 corresponding with first dovetail groove, 3 positions and that be complementary with it on described metal copper layer 2 tops, bottom in the described fixing feet of described commutator segment body 1 is provided with second dovetail groove 5, is provided with second projection 6 corresponding with second dovetail groove, 5 positions and that be complementary with it in described metal copper layer 2 bottoms.
Adopt the present embodiment technical scheme, it is better to reach electric conductivity, lighter weight, lower-cost advantage, simultaneously, when commutator segment body 1 combines with metal copper layer 2, can not need process by further, mutually sheathed with corresponding first dovetail groove 3 and second dovetail groove 5 respectively by first projection 4 on the metal copper layer 2 with second projection 6, directly with commutator segment body 1 and metal copper layer 2 assemblings, can save manufacturing procedure, and then reduce cost accordingly.
As shown in Figure 5, a kind of bimetallic commutator segment comprises commutator segment body 1, and described commutator segment body 1 comprises active section (not shown) that directly contacts with brush and the fixing feet (not shown) that is fixed on the bakelite main body; The part that contacts with brush on described commutator segment body 1 is provided with metallic copper, described commutator segment body 1 is that the aluminum that adopts the coefficient of expansion and copper to be close is made, and is provided with the 3rd dovetail groove 7 and the 4th dovetail groove 9 in the both sides of the described active section of described commutator segment body 1; On described copper layer 2, be provided with the 3rd projection 8 that is complementary with it, on described copper layer 2, be provided with the 4th projection 10 that is complementary with it with described the 4th dovetail groove 9 corresponding positions with described the 3rd dovetail groove 7 corresponding positions.
In the present embodiment, arranged outside at described active section has copper layer 2, the inner aluminum that adopts, with the contacted fixing feet of bakelite, also be the aluminum that adopts the coefficient of expansion and copper to be close, simultaneously with respect to embodiment 1, the copper layer that adopts still less, with break-in between the brush identical with former fine copper still, saved more copper resource, further reduced cost.
Match with projection on being arranged at copper layer 2 by the dovetail groove that will be arranged on the commutator segment body 1, commutator segment body 1 and copper layer 2 are connected and fixed, connected mode is easy, and is simple to operate; At this, the commutator segment body 1 in the present embodiment and the connected mode of copper layer 2, can also directly adopt the mode of clad welded, to not be connected with the combination of projection coupling by dovetail groove, concrete execution mode, be determined on a case-by-case basis, the present invention does not do any qualification, can realize the present invention.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: a kind of bimetallic commutator segment, comprise commutator segment body 1, the part that contacts with brush on described commutator segment body 1 is provided with metallic copper, and described commutator segment body 1 comprises active section that directly contacts with brush and the fixing feet that is fixed on the bakelite main body; Adopt bimetallic commutator segment provided by the utility model, described commutator segment body is provided with metal copper layer 2, has improved electric conductivity; Described commutator segment body is made by the aluminum that is close with the coefficient of expansion and copper, make that the commutator segment quality is lighter, cost is less, simultaneously because the relation that centrifugal force is directly proportional with quality, make the load of commutator diminish, the mechanical performance of commutator improves like this, can design the requirement that higher rotating speed satisfies high-speed electric expreess locomotive.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. bimetallic commutator segment, it is characterized in that, comprise the commutator segment body, the part that contacts with brush on described commutator segment body is provided with metallic copper, and described commutator segment body comprises active section that directly contacts with brush and the fixing feet that is fixed on the bakelite main body.
2. bimetallic commutator segment according to claim 1 is characterized in that, is coated with layer of metal copper layer on the described commutator segment body.
3. bimetallic commutator segment according to claim 2, it is characterized in that, top at the described active section of described commutator segment body is provided with first dovetail groove, is provided with first projection corresponding with the described first dovetail groove position and that be complementary with it on described metal copper layer top.
4. bimetallic commutator segment according to claim 3, it is characterized in that, bottom in the described fixing feet of described commutator segment body is provided with second dovetail groove, is provided with second projection corresponding with the described second dovetail groove position and that be complementary with it in described metal copper layer bottom.
5. bimetallic commutator segment according to claim 3 is characterized in that, is provided with the 3rd dovetail groove and the 4th dovetail groove in the both sides of the described active section of described commutator segment body; On described copper layer, be provided with the 3rd projection that is complementary with it, on described copper layer, be provided with the 4th projection that is complementary with it with the corresponding position of described the 4th dovetail groove with the corresponding position of described the 3rd dovetail groove.
6. according to each described bimetallic commutator segment of claim 1-5, it is characterized in that described commutator segment body top is curved, be set to arc with the corresponding described copper layer of described arc body position.
7. bimetallic commutator segment according to claim 6 is characterized in that, the described active section of described commutator segment body is trapezoidal.
8. bimetallic commutator segment according to claim 7 is characterized in that, is provided with boss in the described fixing feet bottom of described commutator segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200602879U CN202014013U (en) | 2011-03-09 | 2011-03-09 | Thermometal commutating segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200602879U CN202014013U (en) | 2011-03-09 | 2011-03-09 | Thermometal commutating segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014013U true CN202014013U (en) | 2011-10-19 |
Family
ID=44784624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200602879U Expired - Lifetime CN202014013U (en) | 2011-03-09 | 2011-03-09 | Thermometal commutating segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202014013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593681A (en) * | 2012-04-06 | 2012-07-18 | 浙江松普换向器有限公司 | Commutator segment for commutators, and manufacturing method and special punching die thereof |
| CN102684025A (en) * | 2011-03-09 | 2012-09-19 | 苏州工业园区安固电器有限公司 | Double-metal commutating sheet and processing process thereof |
-
2011
- 2011-03-09 CN CN2011200602879U patent/CN202014013U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684025A (en) * | 2011-03-09 | 2012-09-19 | 苏州工业园区安固电器有限公司 | Double-metal commutating sheet and processing process thereof |
| CN102593681A (en) * | 2012-04-06 | 2012-07-18 | 浙江松普换向器有限公司 | Commutator segment for commutators, and manufacturing method and special punching die thereof |
| CN102593681B (en) * | 2012-04-06 | 2014-08-27 | 浙江松普换向器有限公司 | Commutator segment for commutators, and manufacturing method and special punching die thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |