CN201393150Y

CN201393150Y - Permanent-magnetic DC electric motor with double commutators

Info

Publication number: CN201393150Y
Application number: CN200820161029U
Authority: CN
Inventors: 陆新
Original assignee: CHANGZHOU FULLING PRODUCTS Co Ltd
Current assignee: CHANGZHOU FULLING PRODUCTS Co Ltd
Priority date: 2008-11-13
Filing date: 2008-11-13
Publication date: 2010-01-27
Anticipated expiration: 2018-11-13

Abstract

The utility model relates to a permanent-magnetic DC electric motor with double commutators, which is provided with a casing, wherein two ends of the casing are provided with a left end cover and a right end cover, a rotating shaft is arranged inside the casing, the middle part of the rotating shaft is provided with an iron core, the inner wall of the casing is provided with a magnetic steel corresponding to the iron core, two windings with different parameters are sequentially wound on the same iron core, each winding is respectively connected with the corresponding communitator and a carbon brush, and the outer edge disc planes of a left and a right carbon brushes are respectively provided with a left and a right wire connection pieces leading towards the left and the right end covers. A single iron core is utilized to wind two groups of windings with different parameters to be respectively connected with two groups of communitators, and two groups of electric brush structures are utilized, and an excitation structure and the iron core are shared, so that one electric motor can realize two different rotation velocity, thereby realizing low cost and reliable application.

Description

The permanent magnet direct current motor that has two commutators

Technical field

The utility model relates to a kind of permanent magnet direct current motor.

Background technology

Existing permanent magnet direct current motor, as shown in Figure 1 and Figure 2, use single iron core and single commutating structure, same electrical is depressed the rotating speed that can only provide single, when the motor of two kinds of different rotating speeds of needs, must use the different motors of two rotating speeds or use electronic speed regulation, can bring cost to improve and the insecure situation of whole system like this.

Summary of the invention

In order to overcome the deficiency that above-mentioned permanent magnet direct current motor exists, the utility model provides a kind of rotor structure design, depresses in same electrical and can realize that a motor reaches two kinds of different rotating speeds.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of permanent magnet direct current motor that has two commutators, has casing, at the casing two ends left end cap and right end cap are set, in casing, be provided with rotating shaft, the middle part of rotating shaft is provided with iron core, it is relative with iron core to be provided with magnet steel at the inwall of casing, on same iron core successively respectively the interior winding of two groups of different parameters of coiling and outside winding, interior winding and outer winding are mounted on left commutator and the right commutator in the rotating shaft respectively, on left end cap and right end cap, be respectively arranged with left carbon brush and right carbon brush, one end of a left side commutator and right commutator is installed in the centre bore of left carbon brush and right carbon brush, leads to left lug plate and right lug plate in the outer rim disc face of left carbon brush and right carbon brush respectively to left end cap and right end cap.

During use, iron core, interior winding, left commutator and left carbon brush link, and use magnet steel that excitation is provided, and make motor turn round; Iron core, outer winding, right commutator and right carbon brush link, and use magnet steel, make motor turn round, and the motor of two kinds of friction speeds is provided then; Because winding coil adopts the enamelled wire coiling, connect for insulating between each winding or between each coil, promptly realize two groups of shared one group of rotating shafts of coil and iron core, and be independent of each other.

The utility model uses single iron core, and two groups of different parameters of coiling are connected respectively with two groups of commutators, use two groups of brush structures, and shared excitation structure and iron core realize that a motor reaches two kinds of different rotating speeds, reaches low-cost and service-strong purpose.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is common permanent magnet direct current motor structural representation.

Fig. 2 is common permanent direct-current electric machine rotor left view.

Fig. 3 is the utility model structural representation.

Fig. 4 is the utility model rotor left view.

Fig. 5 is the utility model circuit diagram.

Among the figure: 1. right lug plate 10. power supplys of the outer winding 7-1. of winding 6-2. left side commutator 7-2. right commutator 8-1. left side carbon brush 8-2. right carbon brush 9-1. left side lug plate 9-2. in the casing 2-1. left end cap 2-2. right end cap 3. rotating shafts 4. iron cores 5. magnet steel 6. winding 6-1..

Embodiment

As shown in Figure 1 and Figure 2, common permanent magnet direct current motor uses single iron core 4 and single commutating structure, is wound with winding 6 on the iron core 4, and same electrical is depressed the rotating speed that can only provide single.

As Fig. 3, a kind of permanent magnet direct current motor that has two commutators shown in Figure 4, has casing 1, at casing 1 two ends left end cap 2-1 and right end cap 2-2 are set, in casing 1, be provided with rotating shaft 3, the middle part of rotating shaft 3 is provided with iron core 4, it is relative with iron core 4 to be provided with magnet steel 5 at the inwall of casing 1, on same iron core 4 successively respectively the interior winding 6-1 of two groups of different parameters of coiling and outside winding 6-1, interior winding 6-1 and outer winding 6-2 are mounted on left commutator 7-1 and the right commutator 7-2 in the rotating shaft 3 respectively, on left end cap 2-1 and right end cap 2-2, be respectively arranged with left carbon brush 8-1 and right carbon brush 8-2, the end of a left side commutator 7-1 and right commutator 7-2 is installed in the centre bore of left carbon brush 8-1 and right carbon brush 8-2, leads to left lug plate 9-1 and right lug plate 9-2 in the outer rim disc face of left carbon brush 8-1 and right carbon brush 8-2 respectively to left end cap 2-1 and right end cap 2-2.

During use, as shown in Figure 5, iron core 4, interior winding 6-1, left commutator 7-1 and left carbon brush 8-1 link, and use magnet steel that excitation is provided, and DC power supply 10 power supplies make motor turn round; Iron core 4, outer winding 6-2, right commutator 7-2 and right carbon brush 8-2 link, and use magnet steel, make motor turn round, and the motor of two kinds of friction speeds is provided then.

Claims

1. permanent magnet direct current motor that has two commutators, has casing (1), at casing (1) two ends left end cap (2-1) and right end cap (2-2) are set, in casing (1), be provided with rotating shaft (3), the middle part of rotating shaft (3) is provided with iron core (4), it is relative with iron core (4) to be provided with magnet steel (5) at the inwall of casing (1), it is characterized in that: same iron core (4) go up successively respectively the interior winding (6-1) of two groups of different parameters of coiling and outside winding (6-2), interior winding (6-1) and outer winding (6-2) are mounted on left commutator (7-1) and the right commutator (7-2) in the rotating shaft (3) respectively, on left end cap (2-1) and right end cap (2-2), be respectively arranged with left carbon brush (8-1) and right carbon brush (8-2), one end of a left side commutator (7-1) and right commutator (7-2) is installed in the centre bore of left carbon brush (8-1) and right carbon brush (8-2), leads to left lug plate (9-1) and right lug plate (9-2) in the outer rim disc face of left carbon brush (8-1) and right carbon brush (8-2) respectively to left end cap (2-1) and right end cap (2-2).