CN209389857U - A kind of electric two-wheel vehicle electric machine structure - Google Patents

Abstract

The utility model relates to a kind of electric two-wheel vehicle electric machine structure, axis, and set gradually the motor module and slowdown module being connected on axis；Motor module includes motor housing and front motor cover, an internal cavities are constituted between motor housing and front motor cover, rotor is provided in cavity, rotor is fixed on axis outer ring by bearing, rotor periphery is provided with stator, multiple magnetic shoe structures are provided at rotor distance center L, the magnetic shoe structure is arranged along rotor circumference uniform intervals；Slowdown module is by being arranged on bracket, bracket is fixed on front motor cover by fastener, slowdown module is a kind of planetary reduction gear structure, it includes the axis tooth at center, primary teeth, secondary tooth and differential internal tooth, motor module and slowdown module periphery are coated by the wheel side lid at left and right end and the wheel outer cylinder of circumferential direction.This structure is compact-sized using planetary differential mode, and the linkage of three teeth greatly improves the mechanical strength and overload capacity when gear operation.

Description

A kind of electric two-wheel vehicle electric machine structure

Technical field

The utility model relates to vehicle technology field, especially a kind of electric two-wheel vehicle electric machine structure.

Background technique

External-rotor-type hub motor is vulgar direct driving motor, and mainly volume is big, weight weight, and consumptive material；Especially copper and The energy consumption of rare earth permanent-magnetic material is more, and overload capacity is relatively low, and for efficiency without high-speed motor height, energy consumption is also bigger.

Summary of the invention

The utility model is in view of the above-mentioned problems, provide a kind of electric two-wheel vehicle electric machine structure.It is mentioned according to the utility model The technical solution of confession:

A kind of electric two-wheel vehicle electric machine structure, it is characterized in that:

Axis, and set gradually the motor module and slowdown module being connected on axis；

The motor module includes motor housing and front motor cover, is constituted in one between the motor housing and front motor cover Portion's cavity is provided with rotor in cavity, and the rotor is fixed on axis outer ring by bearing, and the rotor periphery is provided with fixed Son, multiple magnetic shoe structures are provided at the rotor distance center L, and the magnetic shoe structure is arranged along rotor circumference uniform intervals Cloth；

By being arranged on bracket, the bracket is fixed on front motor cover the slowdown module by fastener, described Slowdown module is a kind of planetary reduction gear structure comprising the axis tooth at center, primary teeth, secondary tooth and differential internal tooth, motor module It is coated with slowdown module periphery by the wheel side lid at left and right end and the wheel outer cylinder of circumferential direction.

Axis tooth is closely arranged with axis outer ring as a further improvement of the utility model, the engagement assembly of axis tooth outer ring There is primary teeth, the primary teeth inner circle engagement connection has secondary tooth, and primary teeth forms coaxial conjuncted structure with secondary tooth, described secondary Grade tooth outer circle and differential interior tooth engagement；

The primary teeth is covered close to front motor cover end, the differential internal tooth by the wheel side that right end is arranged in pin；

The magnetic shoe structure includes the magnet of intermediate setting and is symmetrically formed as a further improvement of the utility model, The cavity at magnet both ends, the magnet are in strip structure, and cavity is that end has curved portion, and the curved portion has arc-shaped The height of end, the strip structure is higher than curved portion.As a further improvement of the utility model, along fixed on the stator Sub- inner wall offers the hole of trapezoidal shape, and trapezoidal bottom of a cup is arranged towards the stator center of circle；The bottom bottom of a cup width M of the trapezoidal hole For 5 ± 0.5mm.

The magnetic shoe is made of permanent-magnet material as a further improvement of the utility model,.

Wheel lid and right wheel side lid when lid includes revolver, the center revolver Bian Gai has aperture, on ontology left end Section of stretching out part covering brake rim simultaneously cooperates with it；

The center the right wheel Bian Gai has nose section, and the extension extended towards revolver side lid is provided on its ontology right end Section,

It is all hierarchic structure cooperation at two each wheel side lids and outer cylinder assembly.

The L control is in 23.75 ± 0.2mm as a further improvement of the utility model,.

The utility model has the technical effect that this structure is compact-sized using planetary differential mode, and three teeth link significantly The mechanical strength and overload capacity when gear operation are improved, avoids that previous spur reduction overload capacity is poor, the easy tooth and volume beaten Big problem.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model flange type rotor part.

Fig. 2 is the schematic diagram of slowdown module.

Fig. 3 is rotor schematic diagram.

Fig. 4 is the schematic diagram of magnetic shoe structure.

Fig. 5 is the schematic diagram of stator.

Fig. 6 is the schematic diagram taken turns outer cylinder and take turns outer cylinder.

Specific embodiment

Below with reference to specific attached drawing and example, the utility model is described in further detail.

In Fig. 1~6, a kind of electric two-wheel vehicle electric machine structure, it is characterized in that:

Axis 1, and set gradually the motor module and slowdown module being connected on axis 1；

The motor module includes motor housing 2 and front motor cover 10, is constituted between the motor housing 2 and front motor cover One internal cavities are provided with rotor 3 in cavity, and the rotor is fixed on 1 outer ring of axis by bearing, and the rotor periphery is set It is equipped with stator 4, is provided with multiple magnetic shoe structures 9 at the rotor distance center L, the magnetic shoe structure is uniform along rotor circumference It is intervally arranged；

For the slowdown module by being arranged on bracket 13, the bracket is fixed on front motor cover 10 by fastener 14 On, the slowdown module is a kind of planetary reduction gear structure comprising the axis tooth 5 at center, primary teeth 6, secondary tooth 7 and differential internal tooth 8, motor module and slowdown module periphery are coated by the wheel side lid 11 at left and right end and the wheel outer cylinder 12 of circumferential direction.

Axis tooth 5 is closely arranged with 1 outer ring of axis as a further improvement of the utility model, 5 outer ring of the axis tooth engagement dress Equipped with primary teeth 6,6 inner circle of the primary teeth engagement connection has secondary tooth 7, and primary teeth forms coaxial conjuncted structure with secondary tooth, Secondary 7 outer circle of tooth is engaged with differential internal tooth 8；

The primary teeth 6 is covered close to front motor cover end, the differential internal tooth 8 by the wheel side that right end is arranged in pin；

The magnetic shoe structure 9 includes the magnet of intermediate setting and is symmetrically formed as a further improvement of the utility model, Cavity 9.2 at magnet both ends, the magnet are in strip structure, and cavity 9.2 is that end has curved portion, and the curved portion has The height of the end of arc-shaped, the strip structure is higher than curved portion.Cavity structure is used to reduce the leakage field between time magnet.

Offer the hole of trapezoidal shape on the stator 4 along stator inner wall as a further improvement of the utility model, 4.1, and trapezoidal bottom of a cup is arranged towards the stator center of circle；The bottom bottom of a cup width M of the trapezoidal hole is 5 ± 0.5mm.

The magnetic shoe is made of permanent-magnet material.

Wheel lid 11.1 and right wheel side lid 11.2 when lid includes revolver as a further improvement of the utility model, The center revolver Bian Gai has aperture 11.3, and 11.5 part of the section of stretching out covering brake rim 20 on ontology left end 11.4 is simultaneously matched with it It closes；

The center the right wheel Bian Gai has nose section 11.6, is provided on its ontology right end 11.7 towards revolver Bian Gaiyan The extended segment 11.8 stretched,

It is all hierarchic structure cooperation at two each wheel side lids and outer cylinder assembly.

The L control is in 23.75 ± 0.2mm as a further improvement of the utility model,.

Such motor is considered as one end motor special for electric vehicle for adapting to the new international standard of electric vehicle and bicycle and designing, more former First old money direct-drive type hub motor has two advantages:

Changing straight drive is differential reducing；

Change big motor major diameter low-rotate speed and becomes the high revolving speed of motor minor diameter.

To increase motor output torque, save silicon steel sheet, copper consumption and rare earth permanent-magnetic material, electric vehicle is improved Climbing capacity, reduce the power consumption of battery, to reach energy-saving and environment-friendly purpose.

Work process: rotor and axis tooth are coaxial, at the beginning of three be fixed on bracket are driven when rotor runs at high speed Grade tooth operating,

The motor shaft tooth 5 engages primary teeth 6, and primary teeth constitutes conjuncted structure with secondary tooth 7, and primary teeth rotation drives secondary The grade synchronized circular motion of tooth, the differential internal tooth 8 that secondary tooth is engaged with outer circle again realize differential motion.

It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model It encloses, should all cover in the scope of the claims of the utility model.

Claims (7)

1. a kind of electric two-wheel vehicle electric machine structure, it is characterized in that:

Axis (1), and set gradually the motor module and slowdown module being connected on axis (1)；

The motor module includes motor housing (2) and front motor cover (10), structure between the motor housing (2) and front motor cover It at an internal cavities, is provided in cavity rotor (3), the rotor is fixed on axis (1) outer ring, the rotor by bearing Periphery is provided with stator (4), is provided with multiple magnetic shoe structures (9) at the rotor distance center L, the magnetic shoe structure along turn Sub- even circumferential is intervally arranged；

For the slowdown module by being arranged on bracket (13), the bracket is fixed on front motor cover (10) by fastener (14) On, the slowdown module is a kind of planetary reduction gear structure comprising the axis tooth (5) at center, primary teeth (6), secondary tooth (7) and poor Dynamic internal tooth (8), motor module and slowdown module periphery are coated by the wheel side lid (11) at left and right end and the wheel outer cylinder (12) of circumferential direction.

2. a kind of electric two-wheel vehicle electric machine structure described in accordance with the claim 1, it is characterized in that: axis tooth (5) and axis (1) outer ring Close setting, axis tooth (5) the outer ring engagement are equipped with primary teeth (6), and primary teeth (6) the inner circle engagement connection has secondary tooth (7), primary teeth forms coaxial conjuncted structure with secondary tooth, and secondary tooth (7) outer circle is engaged with differential internal tooth (8)；

The primary teeth (6) is covered close to front motor cover end, the differential internal tooth (8) by the wheel side that right end is arranged in pin.

3. a kind of electric two-wheel vehicle electric machine structure described in accordance with the claim 1, it is characterized in that: the magnetic shoe structure (9) is wrapped It includes the magnet of intermediate setting and is symmetrically formed the cavity (9.2) at magnet both ends, the magnet is in strip structure, cavity (9.2) There is curved portion for end, the curved portion has the end of arc-shaped, and the height of the strip structure is higher than curved portion.

4. a kind of electric two-wheel vehicle electric machine structure described in accordance with the claim 1, it is characterized in that: on the stator (4) along Stator inner wall offers the hole (4.1) of trapezoidal shape, and trapezoidal bottom of a cup is arranged towards the stator center of circle；The bottom cup of the trapezoidal hole Bottom width degree M is 5 ± 0.5mm.

5. a kind of electric two-wheel vehicle electric machine structure described in accordance with the claim 1, it is characterized in that: the magnetic shoe uses permanent magnetism material Material production.

6. a kind of electric two-wheel vehicle electric machine structure described in accordance with the claim 1, it is characterized in that: wheel side lid includes revolver The lid (11.2) in lid (11.1) and right wheel, the center revolver Bian Gai have aperture (11.3), stretching on ontology left end (11.4) Section (11.5) part covers brake rim (20) and cooperates with it out；

The center the right wheel Bian Gai has nose section (11.6), is provided on its ontology right end (11.7) towards revolver Bian Gaiyan The extended segment (11.8) stretched,

It is all hierarchic structure cooperation at two each wheel side lids and outer cylinder assembly.

7. a kind of electric two-wheel vehicle electric machine structure described in accordance with the claim 1, it is characterized in that:

The L control is in 23.75 ± 0.2mm.