Commutator copper bar skeleton
A technology of commutator and copper bar, which is applied in the field of commutator, can solve the problems such as inapplicability of ultra-high-speed electric tools
Active Publication Date: 2018-05-15
高唐融知融智科技服务有限公司
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Problems solved by technology
[0002] The commutator is generally composed of the commutator base and the commutator copper sheets arranged around the outer circle of the commutator base. In order to improve the mechanical strength and overspeed performance of the commutator products, the commutator copper sheets are usually The upper and lower reinforcing rings are set to hoop the copper sheets of the commutator, that’s all. When the motor is running at a high speed, it is inevitable that the copper sheets of the commutator will loosen. Therefore, the commutator of the prior art is not suitable for ultra-high speed power tools
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[0011] As shown in the figure, the commutator copper bar framework of the present invention includes a central bushing 1 and twenty-two commutator copper sheets 4 forming a circle around the central bushing 1. The central bushing 1 The outer circle of the commutator is evenly distributed with the same number of lugs 2 as the commutator copper pieces 4, and the lugs 2 are fixed on the outer circle of the center bushing 1, and the lugs 2 and the commutator copper pieces The fixed-length rods 3 are connected; the inner surface of the commutator copper sheet 4 is not provided with hooks, the left and right sides of the commutator copper sheet 4 are directly provided with the first through-holes 6 left and right, and the left and right sides of the ear piece 2 The second through-hole 5 is set left and right, the outer end of the fixed-length rod 3 is bent and fixed after passing through the first through-hole 6, and the inner end of the fixed-length rod 3 is bent and fixed after pas...
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The invention discloses a commutator copper bar framework. The commutator bus framework comprises a center bush and commutator copper sheets which are enclosed into a circle by taking the center bush as the center. The communication copper bar framework is characterized in that lugs which correspond to the commutator copper sheets one by one are uniformly distributed on the excircle of the center bush in a quantity being the same as the quantity of the commutator copper sheets; the lugs are fixed to the excircle of the center bush; and the lugs are connected with the commutator copper sheets through fixed-length rod pieces. The commutator copper bar framework has high structural strength, and can be suitable for ultrahigh-speed electric tools. Bonding force between the commutator and the commutator substrate during injection molding of the commutator can be enhanced greatly, and the mechanical strength and over-speed performance of a commutator product are improved.
Description
Technical field: [0001] The invention relates to the technical field of commutators, in particular to a copper bar skeleton of a commutator. Background technique: [0002] The commutator is generally composed of the commutator base and the commutator copper sheets arranged around the outer circle of the commutator base. In order to improve the mechanical strength and overspeed performance of the commutator products, the commutator copper sheets are usually The upper and lower reinforcing rings are set to hoop the copper sheets of the commutator, that’s all. When the motor is running at a high speed, it is inevitable that the copper sheets of the commutator will loosen. Therefore, the commutator of the prior art It is not suitable for ultra-high speed power tools. Invention content: [0003] In view of the deficiencies in the background technology, the purpose of the present invention is to provide a high structural strength, which can greatly enhance the bonding strength ...
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IPC IPC(8): H01R39/04
CPCH01R39/04H01R2201/10
Inventor 吴清照
Owner 高唐融知融智科技服务有限公司