CN206149119U

CN206149119U - A wheel hub formula motor for two rounds of electric motor cars

Info

Publication number: CN206149119U
Application number: CN201621269765.6U
Authority: CN
Inventors: 舒国勇; 王晨晖
Original assignee: Jiangmen Dachangjiang Group Co Ltd
Current assignee: Jiangmen Dachangjiang Group Co Ltd
Priority date: 2016-11-23
Filing date: 2016-11-23
Publication date: 2017-05-03
Anticipated expiration: 2026-11-23

Abstract

The utility model discloses a wheel hub formula motor for two rounds of electric motor cars, including motor shaft, fixed connection in the stator of motor shaft to reach by the rim and be located the motor casing of the left and right side cover constitution of rim both sides, the inner wall of the rim is equipped with the annular magnetic yoke, the permanent magnet has been arranged to the annular magnetic yoke, the rim adopts the integrative injection molding of aluminum alloy with the left side lid, the annular magnetic yoke is poured into a mould in the lump and is fixed in the interior rampart of rim, the right lid then connection is fixed on the rim, the utility model discloses an intensity of wheel hub formula motor had both been strengthened to integrated into one piece's manufacture, realizes the lightweight, has simplified the assembly again, and the concentricity is high, improves the working property, can extensively fit a wheel hub formula motor for two rounds of electric motor cars.

Description

A kind of hub-type motor for being used for two wheel electric motor cars

Technical field

The utility model is related to electric motor car, especially a kind of hub-type motor for being used for two wheel electric motor cars.

Background technology

The hub-type motor of existing two wheels electric motor car adopts split type iron rim structure, is disposed with the annular of permanent magnet Yoke reinforcement of weld constitutes rotor on iron tyre rim internal ring wall, and is threaded hole on the both sides end face of annular yoke, The side lid of both sides is fastened by bolts in annular yoke.

There are following deficiencies in this split type iron rim structure, one is that annular yoke two sides are provided with multiple bolts installations Hole, is to ensure enough intensity, and annular yoke needs larger thickness, causes weight to increase, meanwhile, magnetic conduction stability drop Low, motor performance weakens；Two is left and right side lid and the separately machined shaping of iron tyre rim, and after machining motor shaft is attached to again On, can so cause the required precision of opposite side lid high, the concentricity for assembling rear motor axle and annular yoke is poor, air gap occurs uneven It is even, even there is the problem of sweeping thorax.

In addition, also there is wheel hub made by the aluminium alloy using said structure, its annular yoke is pressed directly into and is assembled to wheel rim Internal ring wall, easily there is the potential potential safety hazard that annular yoke flies off, deforms in this during causing to travel.

The content of the invention

In order to overcome the deficiencies in the prior art, the utility model to provide a kind of hub-type motor for being used for two wheel electric motor cars.

The utility model solves the technical scheme that its technical problem adopted：

A kind of hub-type motor for being used for two wheel electric motor cars, including motor shaft, the stator of the motor shaft is fixedly connected on, And the electric machine casing being made up of wheel rim and the left and right side lid positioned at the wheel rim both sides, the wheel rim inwall is provided with annular magnetic Yoke, the annular yoke is disposed with permanent magnet, and the wheel rim and left side lid are molded using aluminium alloy integrated die-casting, the annular magnetic Yoke pours into a mould in the lump the internal ring wall for being fixed on the wheel rim；The right lid is then fastened on the wheel rim.

The annular yoke is provided with lug boss, and the lug boss is embedded in the wheel rim and prevents to relatively rotate or axial direction Skew.

The wheel rim lateral wall of the wheel rim is provided with bolt mounting holes, and is connected with the right lid by bolt.

It is end face seal between the right lid and the wheel rim, sealing gasket is folded between the two.

The sealing gasket is papery sealing ring.

The left side outer side of lid one moulding by casting has trig loop.

The beneficial effects of the utility model are：

(1) another independent side lid is directly installed on integral type wheel rim, it is not necessary to installing hole is separately done in annular yoke, more For lightweight, magnetic conduction stability is high, and motor performance is more stable；

(2) annular yoke and wheel rim integrally casting shaping, the more conventional press-in assembling mode of annular yoke is less susceptible to fly off, Deformation, concentricity is guaranteed；

(3) one hub-type electric machine structure is formed using aluminum alloy gravity casting, trailing wheel bulk strength not only can be increased, And more conventional split type iron rim structure has lacked the welding procedure of iron tyre rim, reduces overall weight, saves a side lid Installation, make assembling simpler；

(4) in processing and assembling process electric machine casing without clamping again, its all location dimension can time processing it is complete Into, it is ensured that concentricity, solve that conventional wheel hub motor is overproof to the concentricity tolerance of wheel rim because of side lid and the air gap that occurs It is uneven.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is structural representation of the present utility model.

Specific embodiment

With reference to Fig. 1, a kind of hub-type motor for being used for two wheel electric motor cars, including motor shaft 1, it is fixedly connected on the motor The motor stator 9 of axle 1, and the electric machine casing being made up of wheel rim 2 and the left side lid 3 positioned at the both sides of the wheel rim 2, the right lid 4, The inwall of the wheel rim 2 is provided with the composition rotor of annular yoke 5 for being disposed with permanent magnet, and the wheel rim 2 and left side lid 3 adopt aluminium Alloy integrated die-casting is molded, and the annular yoke 5 pours into a mould in the lump the internal ring wall for being fixed on the wheel rim 2；The right lid 4 then connects Connect and be fixed on the wheel rim 2.

The wheel rim 2 and left side lid 3 are molded using aluminium alloy integrated die-casting, not only can increase trailing wheel bulk strength, and And overall weight is reduced, and the installation of a side lid is saved, make assembling simpler；And in processing and assembling process all positioning Size can be processed at one time, it is ensured that concentricity without clamping again, solve traditional electric car motor because side lid is to wheel rim 2 Concentricity tolerance it is overproof and occur non-uniform air-gap.

The annular yoke 5 pours into a mould in the lump the internal ring wall for being fixed on the wheel rim 2, more conventional split type iron rim structure The welding procedure of iron tyre rim is lacked, and has been difficult to fly off compared with press-in assembling mode, deforms.

Further, the annular yoke 5 is provided with the lug boss 51 in the embedded wheel rim 2, can such as arrange 2 point-like convex Play portion 51 to be distributed in this on excircle wall of annular yoke 5, annular yoke 5 will not court under the action of the centrifugal force when ensureing to rotate Outer disengaging, while also will not produce relative rotation with wheel rim 2, firmness and reliability are greatly promoted.

The lateral wall of the wheel rim 2 is provided with bolt mounting holes 21, and the right lid 4 is covered to the open end face and by spiral shell Bolt 8 is connected, and the different frame modes for needing to be machined with bolt mounting holes in annular yoke 5 in the past, annular can be optimized The wall thickness of yoke 5, reduces weight, is conducive to the lightweight of product, and magnetic conduction stability to be improved, and motor performance is more stable.

Because wheel rim 2 is formed in one with left side lid 3, concentricity is high, the axial tolerance between each part can control to compared with Small range, making can be using end face seal between the right lid 4 and wheel rim 2, the side for mutually being sealed using axial seal or filler than ever The more stable reliability of formula.

And be that both sealings are realized by the sealing gasket 6 of sandwiched between the right lid 4 and the side wall of the wheel rim 2, keep away The problem that sealing is deteriorated or even cannot seal exempted to dismount again in the past after, makes motor housing not only to carry with being dismounted for multiple times High maintainability, and avoid human body from excessively contacting harmful chemical, improve production environment；The sealing gasket 6 is paper Matter sealing ring, compares routine and adopts sealing gasket made by rubber heat-resist, is more suitable for.

Further, the left side lid 3 and the one moulding by casting of trig loop 7, not only reduce the erector of trig loop 7 Sequence, assembles easier, while higher with the concentricity of electric machine casing, performance is more stable.

After using the technical solution of the utility model, by integrally formed manufacture, hub-type motor had both been strengthened Intensity, realize lightweight, in turn simplify assembling, concentricity is high, improves service behaviour, is widely portable to two wheel electric motor cars Hub-type motor.

Claims

1. a kind of hub-type motor for being used for two wheel electric motor cars, including motor shaft (1), the motor shaft (1) is fixedly connected on Stator (9), and the electric machine casing being made up of wheel rim (2) and the left and right side lid (3,4) positioned at the wheel rim (2) both sides, it is described Wheel rim (2) inwall is provided with annular yoke (5), and the annular yoke (5) is disposed with permanent magnet, it is characterised in that：The wheel rim (2) It is molded using aluminium alloy integrated die-casting with left side lid (3), the annular yoke (5) is poured into a mould be fixed on the wheel rim (2) in the lump Internal ring wall；The right lid (4) is then fastened on the wheel rim (2).

2. hub-type motor according to claim 1, it is characterised in that：The annular yoke (5) is provided with lug boss (51), The lug boss (51) is embedded in the wheel rim (2) and prevents to relatively rotate or axial dipole field.

3. hub-type motor according to claim 1, it is characterised in that：The side wall of the wheel rim (2) is provided with bolt installation Hole (21), and be connected with the right lid (4) by bolt (8).

4. the hub-type motor according to claim 1 or 3, it is characterised in that：The right lid (4) and the wheel rim (2) Between be end face seal, sealing gasket (6) is folded between the two.

5. hub-type motor according to claim 4, it is characterised in that：The sealing gasket (6) is papery sealing ring.

6. hub-type motor according to claim 1, it is characterised in that：Left side lid (3) outside one moulding by casting There is trig loop (7).