CN201051698Y - Deviated car electromotor - Google Patents

Abstract

The utility model relates to an electric motor, in particular to an offset vehicle electric motor for electric cars. An iron magnetic core is sleeved in a casing, and a rotor is sleeved in an iron magnetic core inner hole and is fixed on a main shaft which is rotationally engaged with the casing through a support. A speed measuring magnetosphere is fixedly connected on the right end of the main shaft, a Hall bracket is sleeved on the outer side of the speed measuring magnetosphere, and a Hall element is arranged on the Hall bracket and a circuit board which are fixedly connected on the left outer side of a main body. An input gear is arranged on the right end of the main shaft, and a primary output gear is contacted on the outer side of the main shaft and is rotationally engaged with the main body through a secondary gear shaft support. A secondary input gear is arranged on the left side of the primary output gear, and a contact pair is constituted by the secondary input gear and the input gear. When electrifying the electric motor, the casing is fixed, and the rotor is rotated, and the deceleration is outputted from the output shaft through the mutual contact of gears. The utility model has the advantages of high efficiency, low energy consumption, and convenient disassembly and assembly, etc.

Description

Bias Vehicle Motor

technical field

One relates to electric motors, primarily biased vehicle motors for electric vehicles.

Background technique

Chinese patent ZL03229449.2 The brushless motor for electric vehicles is the same as other brushless motors, and has the advantages of simple structure and reliable performance. However, they have the following defects: high-speed operation cannot be achieved, and the angular velocity must not be greater than 1500° per second. When it is greater than 1500°, the no-load current is ≥ 3A; the radial and axial dimensions of the stator are too large, the cost is high, and the consumables are large, which affects electric vehicles. Lightweight; unable to overcome the problem of large load starting current; there is an error in the ratio of the number of slots to the magnetic pole, and the efficiency is not high.

Contents of the invention

In order to overcome the defects of the prior art, this patent provides a biased vehicle motor, which solves the problem of speed limitation and at the same time achieves the goals of high efficiency, low energy consumption and convenient disassembly and assembly.

The technical solution of this patent to achieve the above purpose is: offset vehicle motor, the housing is fixed on the left side of the main body, the ferromagnetic core is fixed in the housing, the inner hole of the ferromagnetic core is sleeved with the rotor, the rotor is fixed on the main shaft, and the main shaft is connected to the main shaft through the support. The shell is rotated and matched; the right end of the main shaft is fixed to the speed-measuring magnetic coil, and the outside of the speed-measuring magnetic ring is connected to the Hall bracket. The first-stage output gear, the first-stage output gear rotates with the main body through the second-stage gear shaft and support, and the second-stage input gear is arranged on the left side of the first-stage output gear, and the second-stage input gear and the output gear form a meshing pair; the outer wheel of the clutch is sleeved with a clutch The inner wheel, the outer wheel of the clutch is fixed on the left side of the output gear, the inner wheel of the clutch is fixed on the output shaft, the output shaft rotates with the main body through the support, and the output gear rotates with the output shaft through the support. The inner wheel is unidirectionally rotated and matched; the hub is sleeved on the hub shaft, and the hub shaft is sleeved with the output shaft. The ferromagnetic core is provided with 6 winding slots uniformly distributed in the radial direction of the circumference, and the 6 winding slots are wound with three-phase winding coils; the rotor is composed of rotor magnetic tile magnetic poles and magnetic ring supports, and the rotor magnetic tile magnetic pole Arranged in N-S-N-S on the magnetic coil bracket, the magnetic coil bracket is fixed on the main shaft, the magnetic coil bracket is equipped with 4 magnetic tile rivets, and the number of rotor magnetic tile poles is 2 pairs; the speed measuring magnetic coil is fixed on the speed measuring magnetic coil bracket , the number of magnetic poles of the speed measuring magnetic coil is equal to that of the rotor magnetic tile, and the phase is the same; the number of Halls is 3, and the 3 Halls form two adjacent 60° and 1 240° angles, and the phase of the Hall is the same as that of the three-phase winding The phase of the slot where the coil lead wire is located corresponds to.

The working principle and beneficial technical effects of this patent are: the three-phase winding of the motor, the DC power supply passes through the Hall and the main board control system, and is input with a sine wave three-phase pulse, and the rotor and the stator are driven to move relative to each other due to mutual attraction or repulsion. When the stator is fixed The rotor rotates clockwise or directional. Change the number of slots from more slots to fewer slots, change more poles to less poles, increase torque ripple, improve electromagnetic effects, and the dead zone area is small when the load is started, the starting current and no-load current per unit rated power are small, and the motor efficiency reaches 92%. .

Description of drawings

Fig. 1 is the schematic diagram of the main view section structure of the utility model;

Fig. 2 is the schematic diagram of the cross-sectional structure of the motor of the present invention;

Fig. 3 is a structural schematic diagram of the utility model clutch;

Fig. 4 is the schematic diagram of the Hall control system of the present invention;

Fig. 5 is a schematic diagram of the front section structure of the second example of the utility model;

Fig. 6 is a schematic diagram of the front section structure of the third example of the utility model;

Fig. 7 is a schematic structural diagram of the second example of the motor of the present invention.

In Figures 1, 2, 3 and 4:

1-main body 2-main body bearing 3-input gear

4-Secondary input gear 5-Secondary gear shaft 6-Secondary gear shaft right bearing

7-Level 1 output gear 8-Output shaft right bearing 9-Output shaft

10-Body end cover 11-Lead hole 12-Ferromagnetic core

13-Rotor magnetic tile pole 14-Shell 15-Magnet bracket

16-main shaft 17-housing bearing 18-secondary gear shaft left bearing

19-Left bearing of output shaft 20-Right bearing of output gear 21-Left bearing of output gear

22-Output gear 23-Wheel hub 24-Jump pin spring

25-roller A-clutch outer wheel B-clutch inner wheel

C-circuit board D-Hall bracket E-Hall

F-speed magnetic coil bracket G-speed magnetic coil H-winding slot

I-Magnetic tile riveting J-Wheel hub shaft K-Wheel hub shaft bearing

In Figure 5:

1- Main body end cover 2- Output gear 3- Main body end cover bearing

4-input sprocket 5-output shaft 6-main body bearing

7-Input gear 8-Wheel hub bearing 9-Main body

10-output gear bearing 11-housing bearing 12-spindle

13-Magnet bracket 14-Rotor magnetic tile pole 15-Ferromagnetic core

16-shell 17-hub shaft 18-hub

A-clutch inner wheel B-clutch outer sprocket C-circuit board

D-Hall Bracket E-Hall F-Speed Magnetic Coil Bracket

G-speed magnetic coil

In Figure 6:

1-clutch outer wheel 2-clutch roller bracket 3-clutch inner shaft

4-input gear left bearing 5-input gear 6-roller

7-right end cover 8-right end cover bearing 9-spindle

10-Lead wire hole 11-Spindle left bearing 12-Shell

13-Motor inner shell 14-Output gear 15-Output shaft

16-subject

In Figure 7:

1-Shell 2-Magnet bracket 3-Magnet tile

4- Ferromagnetic core 5- Commutator 6- Carbon brush

Detailed ways

Referring to Figures 1, 2, 3, and 4, the bias vehicle motor has a housing 14 fixed on the left side of the main body 1, and a ferromagnetic core 12 is fixed inside the housing 14. The inner hole of the ferromagnetic core 12 is sleeved with the rotor, and the rotor is fixed on the main shaft 16, the main shaft 16 rotates with the housing 14 through the housing bearing 17 and the main body bearing 2; the right end of the main shaft 16 is fixedly connected to the speed measuring magnetic coil G, and the outside of the speed measuring magnetic coil G is connected to the Hall bracket D, and the outer side of the Hall bracket D is fixed to the circuit Board C, the circuit board C is fixed on the left side of the main body 1; the right end of the main shaft 16 is provided with an input gear 3, the outer side meshes with the primary output gear 7, and the primary output gear 7 passes through the secondary gear shaft 5 and the right bearing 6 of the secondary gear shaft And the left bearing 18 of the secondary gear shaft rotates with the main body 1 and the main body end cover 10. The left side of the primary output gear 7 is provided with a secondary input gear 4, and the secondary input gear 4 and the output gear 22 form a meshing pair; the clutch outer wheel A The clutch inner wheel B is sleeved inside, the clutch outer wheel A is fixed on the left side of the output gear 22, the clutch inner wheel B is fixed on the output shaft 9, the output shaft 9 is connected to the main body 1 and the main body through the output shaft left bearing 19 and the output shaft right bearing 8 The end cover 10 rotates and cooperates, and the output gear 22 rotates and cooperates with the output shaft 9 through the output gear left bearing 21 and the output gear right bearing 20. The characteristic of the clutch is that the clutch outer wheel A and the clutch inner wheel B pass through the roller 25 and the ejector pin spring 24 unidirectional rotation fit; the hub 23 is sleeved on the hub shaft J, and the hub shaft J is sleeved with the output shaft 9 through the hub shaft bearing K. The ferromagnetic core 12 is provided with 6 winding slots H uniformly distributed in the radial direction of the circumference, and the 6 winding slots H are wound with three-phase winding coils; the magnetic coil support 15 is provided with 2 pairs of N-S-N-S arrangement The rotor magnetic tile magnetic pole 13, the magnetic ring support 15 is fixed on the main shaft 16, the magnetic ring support 15 is provided with 4 magnetic tile rivets I; the speed measuring magnetic coil G is fixed on the speed measuring magnetic coil support F, and the speed measuring magnetic coil G magnetic pole The number of pole pairs is equal to that of the rotor magnetic tile, and the phase is the same; the number of the Hall E is 3, and the 3 Hall Es form two adjacent angles of 60° and 1 angle of 240°, and the phase of the Hall E is the same as that of the three-phase winding The phase of the slot where the coil lead wire is located corresponds to. The lead wires of the three-phase winding coils and the Hall E wires are drawn out from the lead hole 11 to be connected to the external control system.

Referring to Fig. 5, the bias vehicle motor has a housing 16 fixed on the left side of the main body 9, a ferromagnetic core 15 is fixed inside the housing 16, the inner hole of the ferromagnetic core 15 is socketed with the rotor, the rotor is fixed on the main shaft 12, and the main shaft 12 passes through The housing bearing 11 and the main body bearing 6 are in rotation with the housing 16; the right end of the main shaft 12 is fixedly connected to the speed measuring magnetic coil G, and the outside of the speed measuring magnetic coil G is connected to the Hall bracket D, and the outer side of the Hall bracket D is fixed to the circuit board C, and the circuit board C Fixed on the left outer side of the main body 9; the right end of the main shaft 12 is provided with an input gear 7, the outer side meshes with the output gear 2, and the output gear 2 rotates with the main body 9 and the main body end cover 1 through the output wheel shaft 5, the main body end cover bearing 3 and the output gear bearing 10 Cooperate, the right end of the output wheel shaft 5 is provided with an input sprocket 4, the input sprocket 4 forms a meshing pair with the clutch outer sprocket B and the chain; the clutch outer sprocket B is sleeved with the clutch inner wheel A, and the clutch inner wheel A is fixed on the hub 18 Above, the feature of the clutch is that the clutch outer sprocket B and the clutch inner wheel A rotate in one direction; the hub 18 is sleeved on the hub shaft 17 through the hub bearing 8, and the hub shaft 17 is fixed on the right side of the main body 9; the iron The magnetic core 15 is provided with 6 winding slots uniformly distributed in the radial direction of the circumference, and the 6 winding slots are wound with three-phase winding coils; the magnetic coil support 13 is provided with 2 pairs of rotor magnetic tile poles 14 arranged in N-S-N-S , the magnetic ring support 13 is fixed on the main shaft 12, and the magnetic ring support 13 is provided with 4 magnetic tile rivets I; the speed measuring magnetic coil G is fixed on the speed measuring magnetic coil support F, and the speed measuring magnetic coil G magnetic pole pair is connected with the rotor magnetic tile The number of pairs of magnetic poles is equal, and the phase is the same; the number of Hall E is 3, and the three Hall Es form two adjacent angles of 60° and one angle of 240°. corresponding to the phase.

Referring to Fig. 6, the main shaft 9 of the offset vehicle motor is fixed on the inner wall of the housing 12, and the inner housing 13 of the motor rotates with the main shaft 9 through the left bearing 11 of the main shaft and the bearing 8 of the right end cover; the inner shaft 3 of the clutch is fixed on the right end cover 7 Above, the clutch inner shaft 3 is externally connected to the roller bracket 2, and rollers 6 are evenly distributed on the roller bracket 2, and the rollers 6 are externally meshed with the clutch outer wheel 1, and the clutch inner shaft 3 and the clutch outer wheel 1 are unidirectionally rotated and matched by the rollers 6; The input gear 5 rotates with the main body 16 through the input gear left bearing 4. The left side of the input gear 5 is fixedly connected to the clutch outer wheel 1. The outer side of the input gear 5 is meshed with other gears, and the deceleration is transmitted to the output gear 14. The output gear 14 is fixed to the output shaft 15. ; The coil and the Hall wire are drawn out from the lead hole 10 . The clutch can be located at other positions, and the right end cover 7 is coupled with the input gear 5 .

Referring to Fig. 7, the bias vehicle motor has a magnetic coil support 2 fixed in the motor housing 1, and a magnetic tile 3 is fixed in the magnetic coil bracket 2. The magnetic tiles 3 are arranged in an N-S-N-S circumferential ring, and the magnetic tiles 3 are uniformly distributed in the annular circumferential direction. The ferromagnetic core 4 is socketed, the commutator 5 is fixed outside the ferromagnetic core 4, and the commutator 5 is equipped with a carbon brush 6 outside. The magnetic tiles 3 are arranged in N-S-N-S, and the number of magnetic pole pairs is 2 pairs. The ferromagnetic core 4 is provided with winding slots uniformly distributed in the radial direction of the circumference, and the number of winding slots is 6. The coil winding method is three-phase winding, the 6 winding slots can be combined into 3, and the commutator 5 can be 6 pieces or 3 pieces, and the 3 magnetic poles of the magnetic tile can be 1 pair. The pole pair ratio of the tile 3 is 3:2 or 3:4, the carbon brush 6 is one pair, and the symmetry line of the carbon brush 6 can be an included angle of 180° or 150°. The ferromagnetic core 4 is rotatably matched with the housing 1 .

Referring to FIG. 1 , the right end of the main shaft 16 is provided with an input gear 3 , and the outer side can be engaged with an output gear 22 , while the first-stage output gear 7 and the second-stage input gear 4 can be omitted. The clutch can be arranged on the main shaft 16 or on the secondary gear shaft 5 . The clutch can be a clutch of a push plate friction mechanism, and a suitable clutch thereof.

The number of pole pairs of the rotor magnetic tiles of the bias vehicle motor can be 1, or more than 3. The ratio of the number of winding slots of the ferromagnetic core to the number of pole pairs of the rotor magnetic tile is 3:2 or 3:4. The motor can be rotated internally or externally; the magnetic poles of the rotor magnetic tiles can be externally mounted or internally mounted, and the ferromagnetic core corresponds to it.

The bearings are usually deep groove bearings, but also cylindrical roller bearings or tapered roller bearings, and suitable bearings thereof.

The left, right, clockwise, counterclockwise, inside and outside are for the convenience of text expression, any reverse will not affect the implementation of the utility model.

Claims (5)

1. biasing motor of vehicle, its housing are fixed on the main body left side, housing internal fixation ferromagnetic core, and the ferromagnetic core inner hole sleeve switches through son, and rotor is fixed on the main shaft, and main shaft is rotatably assorted by supporting and housing; The affixed magnetosphere that tests the speed of main shaft right-hand member, the outer socket Hall support of the magnetosphere that tests the speed, the affixed circuit board in the Hall support outside, circuit board is fixed on the main body left-external side; The right end of main shaft is provided with the input gear, outside engagement one-level output gear, and the one-level output gear is rotatably assorted with main body by the supporting of secondary gear axle, and one-level output gear left side is provided with secondary input gear, and secondary input gear and output gear are formed Meshing Pair; Wheel in the socket clutch in the clutch foreign steamer, the clutch foreign steamer is fixed on the output gear left side, wheel is fixed on the output shaft in the clutch, output shaft is rotatably assorted by supporting and main body, output gear is rotatably assorted by supporting and output shaft, and described clutch is characterized in that the clutch foreign steamer cooperates with wheel one-directional rotation in the clutch; Wheel hub is socketed on the hub spindle, hub spindle and output shaft socket.

2. biasing motor of vehicle as claimed in claim 1 is characterized in that ferromagnetic core is provided with 6 winding slots that are the circumference radial equipartition, and 6 winding slots are wound with the three-phase winding coil.

3. biasing motor of vehicle as claimed in claim 1, it is characterized in that rotor is made up of rotor magnetic shoe magnetic pole, magnetosphere support, rotor magnetic shoe magnetic pole is the N-S-N-S arrangement and is located on the magnetosphere support, the magnetosphere support is fixed on the main shaft, the magnetosphere support is provided with 4 magnetic shoe rivetings and carves, and rotor magnetic shoe number of magnetic poles is 2 pairs.

4. biasing motor of vehicle as claimed in claim 1, the magnetosphere that it is characterized in that testing the speed is fixed on the magnetosphere support that tests the speed, and the magnetosphere magnetic pole that tests the speed equates that with rotor magnetic shoe number of magnetic poles phase place is identical.

5. biasing motor of vehicle as claimed in claim 1 is characterized in that Hall quantity is 3, and 3 Halls constitute adjacent 2 60 ° and 1 240 ° of angle, and the Hall phase place is corresponding with the phase place of three-phase winding coil lead-out wire place groove.

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