CN216216127U

CN216216127U - Magneto for motorcycle

Info

Publication number: CN216216127U
Application number: CN202122302948.0U
Authority: CN
Inventors: 丁雪妍
Original assignee: Gongcheng Denso Chongqing Co ltd
Current assignee: Gongcheng Denso Chongqing Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-05
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to a magneto for a motorcycle, which comprises a rotor, a stator and a trigger, wherein the stator is arranged in the rotor and is used for outputting each phase voltage when the rotor rotates, magnetic steel with a first polarity and a second polarity is alternately arranged on the inner circumference of the rotor, the first polarity is opposite to the second polarity, a plurality of grooves are formed in the outer circumferential wall of the rotor, and the trigger is used for generating a pulse signal with positive and negative directions when passing through each groove. In the utility model, the rotor is provided with the groove, so that the rotor and the trigger can be closer to each other, thereby saving the installation space of the engine.

Description

Magneto for motorcycle

Technical Field

The utility model relates to a motor, in particular to a magneto for a motorcycle.

Background

The acquisition of data such as the zero crossing point of the magneto has important significance for ignition of the engine and motor equality change. At present, the determination of the zero crossing point position of the magneto is provided by a pulse trigger, specifically: the pulse trigger and a plurality of bosses arranged on the outer circumference of the rotor generate electromagnetic induction to generate pulse signals. But because of the existence of the lug boss, a large installation space of the engine is required.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a magneto for a motorcycle, a groove is arranged on a rotor in the magneto, and a trigger generates a pulse signal through electromagnetic induction with the groove arranged on the outer circular wall of the rotor, so that the installation space of an engine is saved.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

the utility model provides a magneto for motorcycle, includes rotor, stator and trigger, the stator is arranged in the rotor and this stator exports each phase voltage when being used for the rotor to rotate, set up the magnet steel that has first polarity and second polarity on the rotor in turn, just first polarity is opposite with the second polarity, the rotor periphery has configured the trigger, just be equipped with trigger iron core boss on the trigger, be equipped with a plurality of recesses on the periphery wall of rotor, trigger iron core boss is used for at each the leading edge of recess exports reverse pulse signal when passing through, at each the back porch of recess exports forward pulse signal when passing through.

Preferably, the first polarity is either N-pole or S-pole.

Preferably, the groove is provided along an axial direction of the rotor outer peripheral wall, and a length of the groove is determined according to a mounting requirement of the engine.

Preferably, the groove penetrates the entire axial direction of the rotor.

Preferably, the rotor is mounted on an engine crankshaft and the stator is mounted on the engine end cover.

Preferably, the trigger is mounted to the stator by a trigger mount.

Preferably, the stator has stator core and coil winding, the last ring row of stator core is equipped with a plurality of teeth, the coil winding is around locating on the tooth, the rotor has one set and locates stator core's rotor case, the magnet steel arrange in the rotor case.

The utility model has the beneficial effects that: the pulse motor comprises a rotor, a stator and a trigger, wherein the stator is arranged in the rotor, a plurality of grooves are formed in the rotor, the trigger is used for outputting a reverse pulse signal when the front edge of each groove passes through, and outputting a forward pulse signal when the rear edge of each groove passes through. According to the utility model, the groove is used for replacing the traditional boss, the trigger generates an electromagnetic induction pulse signal through the groove arranged on the outer circumference of the rotor, when the maximum outer diameter of the rotation is the same, the weight of the groove arranged on the rotor is lighter, so that the rotational inertia is relatively larger, the functional requirements of the rotor as an engine flywheel for energy storage and speed stabilization are met, and meanwhile, due to the arrangement of the groove, the rotor and the trigger can be closer to each other, so that the installation space of the engine is saved.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a side view of example 1 of the present invention;

FIG. 3 is a schematic structural view of a rotor according to embodiment 1 of the present invention;

FIG. 4 is a diagram showing the pulse shape of the flip-flop of embodiment 1 of the present invention;

FIG. 5 is a schematic structural view of example 2 of the present invention;

FIG. 6 is a side view of example 2 of the present invention;

FIG. 7 is a schematic view showing the structure of a rotor in embodiment 2 of the present invention;

FIG. 8 is a diagram showing the pulse shape of the flip-flop of embodiment 2 of the present invention;

in the figure: 10-rotor, 11-groove, 20-stator, 30-trigger, 31-trigger iron core boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 8, a magnetic motor for a motorcycle includes a rotor 10, a stator 20, and a trigger 30, where the stator 20 is disposed in the rotor 10 and is used for outputting each phase voltage when the rotor rotates, magnetic steels with a first polarity and a second polarity are alternately disposed on the rotor 10, the first polarity is opposite to the second polarity, the first polarity is an N pole or an S pole, the trigger 30 is disposed on the periphery of the rotor, a trigger core boss 31 is disposed on the trigger 30, a plurality of grooves 11 are disposed on the outer peripheral wall of the rotor, and the trigger core boss 31 is used for outputting a reverse pulse signal when the leading edge of each groove 11 passes through, and outputting a forward pulse signal when the trailing edge of each groove 11 passes through. The rotor 10 is sleeved on the stator 20, the trigger 30 is located outside the rotor 10 and is used for outputting a pulse signal, the first polarity may be an N pole or an S pole, correspondingly, the second polarity is a polarity opposite to the first polarity, and magnetic steels of the N pole and the S pole are alternately arranged at the edge of the rotor. The trigger 30 is a device capable of cutting a magnetic field to make an induction coil in a contact generate an electronic pulse, when the leading edge of the groove 11 passes through the induction part of the trigger, it means that the groove just arrives at the trigger, when the trailing edge of the groove 11 passes through the induction part of the trigger, it means that the groove is about to leave the trigger, when the motor rotates, the grooves 11 on the rotor 10 pass through the trigger 30 one by one, the trigger generates a pulse signal as shown in fig. 4 and 8, and the change of the pulse signal can represent the arrangement position of the groove. The groove is used for replacing a traditional boss, when the maximum outer diameter of rotation is the same, the groove is arranged on the rotor, the weight is lighter, the rotary inertia is larger, the functional requirements of the rotor as an engine flywheel for energy storage and speed stabilization are met, and meanwhile, due to the arrangement of the groove, the rotor and the trigger can be closer to each other, and the installation space of the engine is saved.

The grooves 11 are provided along the axial direction of the outer peripheral wall of the rotor 10, and the length of the grooves 11 is determined according to the mounting requirements of the engine. In embodiment 1, as shown in fig. 2 to 3, the length of the groove 11 occupies about half of the height of the rotor, fig. 4 is a pulse waveform diagram generated by the trigger in this embodiment, 11 grooves are provided in this embodiment, and the groove numbers in fig. 1 and fig. 4 correspond one-to-one.

In embodiment 2, the groove 11 penetrates the entire axial direction of the rotor. The only difference between embodiment 2 and embodiment 1 is that the grooves penetrate the entire axial direction of the rotor, as shown in fig. 6-7, fig. 8 is a pulse waveform diagram generated by the trigger in this embodiment, 11 grooves are provided in this embodiment, and the groove numbers in fig. 5 and fig. 8 correspond one-to-one.

The rotor 10 is mounted on the engine crankshaft and the stator 20 is mounted on the engine end cover. The crankshaft of the engine is the most important part in the engine, and the crankshaft bears the force transmitted by the connecting rod and converts the force into torque which is output through the crankshaft and drives other parts on the engine to work. The specific connection mode of the rotor and the engine crankshaft can be selected according to actual conditions, in the embodiment, a plurality of grooves 11 are distributed on the outer peripheral wall of the rotor 10, but one target position is not provided with the grooves, for example, 12 grooves can be uniformly distributed on the rotor, but only 11 grooves are provided, as shown in fig. 1 and 5, only the target position is not provided with the grooves, when the motor rotates, because the target position is not provided with the grooves, the pulse signal output by the trigger 30 is as shown in fig. 4 and 8, and when the target position passes through the position of the trigger, the pulse signal is not generated.

The trigger 30 is mounted to the stator 20 by a trigger mount. The trigger 30 is electrically connected to a controller, and the controller has signal processing capability and signal generating capability; the trigger 30 may be mounted to the stator 20 or may be a separate component. Stator 20 has stator core and coil winding, the last ring row of stator core is equipped with a plurality of teeth, the coil winding is around locating on the tooth, rotor 10 has one set and locates stator core's rotor case, the magnet steel arrange in the rotor case.

The operation process of the utility model is as follows: taking embodiment 1 as an example, as shown in fig. 1 to 3, when the motor rotates, the grooves 11 on the rotor 10 pass through the trigger 30 one by one, the trigger 30 outputs a reverse pulse signal when the leading edge of each groove 11 passes through, and outputs a forward pulse signal when the trailing edge of each groove 11 passes through, so as to generate a pulse signal as shown in fig. 4, the change of the pulse signal can represent the arrangement position of the grooves, in this embodiment, 11 grooves are provided on the rotor, and the groove marks in fig. 1 and fig. 4 correspond to each other one by one; because only one magnetic steel is left on the rotor and no groove is arranged, when the motor rotates, because the target position is not provided with a groove, the pulse signal output by the trigger 30 does not generate a pulse signal (the target position is marked in figure 4) when the target position passes through the position of the trigger, and according to the characteristics, the position of the crankshaft of the engine, namely the position of the zero crossing point of the magneto can be determined by combining the specific position of the crankshaft of the engine and the rotor.

It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A magneto for a motorcycle, characterized in that: the trigger comprises a rotor (10), a stator (20) and a trigger (30), wherein the stator (20) is arranged in the rotor (10) and used for outputting each phase voltage when the rotor rotates, magnetic steels with a first polarity and a second polarity are alternately arranged on the rotor (10), the first polarity is opposite to the second polarity, the trigger (30) is arranged on the periphery of the rotor, a trigger iron core boss (31) is arranged on the trigger (30), a plurality of grooves (11) are formed in the peripheral wall of the rotor, the trigger iron core boss (31) is used for outputting a reverse pulse signal when the front edge of each groove (11) passes through, and outputting a forward pulse signal when the rear edge of each groove (11) passes through.

2. The magneto according to claim 1, wherein: the first polarity is an N pole or an S pole.

3. The magneto according to claim 1, wherein: the groove (11) is arranged along the axial direction of the outer peripheral wall of the rotor (10), and the length of the groove (11) is determined according to the installation requirements of the engine.

4. A magneto-electric machine for a motorcycle according to claim 3, wherein: the groove (11) penetrates the entire axial direction of the rotor.

5. The magneto according to claim 1, wherein: the rotor (10) is mounted on an engine crankshaft, and the stator (20) is mounted on the engine end cover.

6. The magneto according to claim 1, wherein: the trigger (30) is mounted to the stator (20) by a trigger mount.

7. The magneto according to claim 1, wherein: stator (20) has stator core and coil winding, the last ring row of stator core is equipped with a plurality of teeth, the coil winding is around locating on the tooth, rotor (10) have one set locate stator core's rotor case, the magnet steel arrange in the rotor case.