Electric vehicle motor

Abstract

The utility model relates to the related technical field of motors of electric motorcycles, in particular to a motor of an electric vehicle, which comprises a motor shaft, first magnetic steel is fixedly connected to the inner side surface of an iron ring, and second magnetic steel is fixedly connected to the inner side surface of the iron ring. According to the electric vehicle motor, through the arrangement of the first magnetic steel and the second magnetic steel, when current enters the winding of the stator 11, the winding of the stator 11 can generate a rotating magnetic field according to the law of electromagnetic induction, and under the interaction of the magnetic field, generated electromagnetic force can drive the motor shaft 1 to rotate, so that electric energy is more effectively converted into mechanical energy; the double-row magnetic steel mode improves the strength of single magnetic steel, the double-magnetic-circuit mode is adopted, the two pieces of short magnetic steel are easy to machine, the manufacturing cost is low, the product cost is reduced, and the cost performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric motor car motor technical field especially relates to a kind of electric vehicle motor. BACKGROUND

[0002] Electric motor car refers to the electric vehicle that electric battery, battery driven motor operation provides power, along with the rapid development of electric vehicle market, user's quality and power performance requirement of electric vehicle increasing, motor as the core component of electric vehicle, its power performance directly affects the power performance of whole vehicle, market demand high power, high cost performance, high reliability product, therefore, especially need a kind of electric vehicle motor.

[0003] But the existing electric vehicle motor, magnetic steel structure and performance promotion aspect there is certain limitation, magnetic steel strength is limited and easy to break, magnetic steel processing is complex, manufacturing cost is higher. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of electric vehicle motor, to solve the problem that the existing electric vehicle motor is proposed in above-mentioned background art, magnetic steel structure and performance promotion aspect there is certain limitation, magnetic steel strength is limited and easy to break, magnetic steel processing is complex, manufacturing cost is higher.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of electric vehicle motor, including motor shaft, the outer surface of the motor shaft is fixedly connected with first rotating shaft, the outer surface of the first rotating shaft is rotatably connected with first shell, the inner surface of the first shell is equipped with first rotating groove, the side surface of the first shell is fixedly connected with iron ring, the outer surface of the iron ring is fixedly connected with hub, the inner surface of the iron ring is fixedly connected with first magnetic steel, the inner surface of the iron ring is fixedly connected with second magnetic steel, the outer surface of the motor shaft is fixedly connected with fixed frame, the inner surface of the fixed frame is equipped with rotating groove, the outer surface of the fixed frame is fixedly connected with stator, the outer surface of the motor shaft is fixedly connected with second rotating shaft, the outer surface of the second rotating shaft is rotatably connected with second shell, the inner surface of the second shell is equipped with second rotating groove.

[0006] Preferably, the outer side size of the first rotating shaft is consistent with the inner side size of the first rotating groove, and the first shell is bolted to the iron ring.

[0007] Preferably, the first magnetic steel is connected with N-S-N-S in a circle, and the first magnetic steel and the second magnetic steel are connected with two same-pole magnetic steels.

[0008] Preferably, the first magnetic steel and the second magnetic steel are connected with a certain gap between two magnetic steels, and the second magnetic steel is connected with N-S-N-S in a circle.

[0009] Preferably, the motor shaft is fixedly connected with the stator through a fixing frame, and the inner size of the rotating groove is consistent with the outer size of the motor shaft.

[0010] Preferably, the second shell is fixedly connected with the first shell through a ring, and the first rotating shaft and the second rotating shaft are in parallel distribution.

[0011] Preferably, the outer size of the second rotating shaft is consistent with the inner size of the second rotating groove, and the second shell is bolted with the ring through bolts.

[0012] Compared with the prior art, the electric vehicle motor has the beneficial effects that: through the arrangement of the first magnetic steel and the second magnetic steel, when the current is passed into the winding of the stator 11 during use, according to the law of electromagnetic induction, the winding of the stator 11 will generate a rotating magnetic field, and due to the fact that the first magnetic steel 7 and the second magnetic steel 8 are fixed inside the ring 5 and are in a specific N-S-N-S distribution, the rotating magnetic field and the magnetic field generated by the first magnetic steel 7 and the second magnetic steel 8 interact with each other, and under the magnetic field interaction, the electromagnetic force generated will drive the motor shaft 1 to rotate, the double magnetic circuit structure and the unique distribution mode of the first magnetic steel 7 and the second magnetic steel 8 can provide a stronger and more stable magnetic field compared with a traditional single magnetic circuit motor, the same-pole magnetic steel and the gap at the connecting position of the first magnetic steel 7 and the second magnetic steel 8 optimize the magnetic field distribution, further improve the power output characteristics of the motor, and make the motor run efficiently and stably under different load conditions, more effectively convert electrical energy into mechanical energy, finally drive the hub 6 connected with the ring 5 to rotate, realize the driving forward movement or backward movement of the electric vehicle, and during the whole running process, the motor can maintain a low noise level and good temperature stability, adapt to various complex use environments, the double-row magnetic steel mode improves the single magnetic steel strength, the double magnetic circuit mode is adopted, the two short magnetic steels are simple to process and low in manufacturing cost, the product cost is reduced, and the performance-cost ratio is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a side view appearance structure schematic view of the utility model;

[0014] Figure 2 It is a first rotating shaft and first rotating groove mutual cooperation structure schematic view of the utility model;

[0015] Figure 3 It is a second shell and ring mutual cooperation structure schematic view of the utility model;

[0016] Figure 4 It is a first magnetic steel and second magnetic steel mutual cooperation structure schematic view of the utility model.

[0017] In the figure: 1, motor shaft; 2, the first rotating shaft; 3, the first shell; 4, the first rotating groove; 5, the iron ring; 6, the hub; 7, the first magnetic steel; 8, the second magnetic steel; 9, the fixed frame; 10, the rotating groove; 11, the stator; 12, the second rotating shaft; 13, the second shell; 14, the second rotating groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of electric motor car motor, including motor shaft 1, the outer surface of motor shaft 1 is fixedly connected with first rotating shaft 2, the outer surface of first rotating shaft 2 is rotatably connected with first shell 3, the inner surface of first shell 3 is equipped with first rotating groove 4, the side surface of first shell 3 is fixedly connected with iron ring 5, the outer surface of iron ring 5 is fixedly connected with hub 6, the inner surface of iron ring 5 is fixedly connected with first magnetic steel 7, the inner surface of iron ring 5 is fixedly connected with second magnetic steel 8, the outer surface of motor shaft 1 is fixedly connected with fixed frame 9, the inner surface of fixed frame 9 is equipped with rotating groove 10, the outer surface of fixed frame 9 is fixedly connected with stator 11, the outer surface of motor shaft 1 is fixedly connected with second rotating shaft 12, the outer surface of second rotating shaft 12 is rotatably connected with second shell 13, the inner surface of second shell 13 is equipped with second rotating groove 14.

[0020] Further, the outside size of first rotating shaft 2 is consistent with the inside size of first rotating groove 4, first shell 3 is bolted with iron ring 5 by bolt, by the setting of first rotating shaft 2 and first rotating groove 4, in use, the outside size of first rotating shaft 2 is consistent with the inside size of first rotating groove 4, ensure the smooth operation of rotating shaft in shell, this precision fit reduces friction and energy loss, so that the efficiency of motor is improved.

[0021] Further, the N-S-N-S distribution of first magnetic steel 7 is connected in a circle, two of first magnetic steel 7 and second magnetic steel 8 are same-pole magnetic steel, by the setting of first magnetic steel 7 and second magnetic steel 8, in use, the N-S-N-S distribution of first magnetic steel 7 is connected in a circle, forms a continuous magnetic field path, second magnetic steel 8 and first magnetic steel 7 form complement, so that the intensity and stability of magnetic field are enhanced.

[0022] Further, the first magnetic steel 7 and the second magnetic steel 8 are connected between the two magnetic steels, and a certain gap is left between the two magnetic steels connected by the second magnetic steel 8, and the N-S-N-S distribution is distributed through the setting of the first magnetic steel 7 and the second magnetic steel 8. In use, a certain gap is left between the two magnetic steels connected by the first magnetic steel 7 and the second magnetic steel 8, which ensures the uniform distribution of the magnetic field and avoids the increase of magnetic resistance caused by the direct contact of the magnetic steel, so that the motor runs more stably.

[0023] Further, the motor shaft 1 is fixedly connected with the stator 11 through the fixing frame 9, the inner size of the rotating groove 10 is consistent with the outer size of the motor shaft 1, and through the setting of the motor shaft 1, the fixing frame 9, the stator 11, the rotating groove 10 and the motor shaft 1, the motor shaft 1 is fixedly connected with the stator 11 through the fixing frame 9 in use, which ensures the stability of the stator 11 during the operation of the motor, and the inner size of the rotating groove 10 is consistent with the outer size of the motor shaft 1, which further ensures the smooth operation of the motor shaft 1, so that the motor can run efficiently and stably for a long time.

[0024] Further, the second housing 13 is fixedly connected with the first housing 3 through the iron ring 5, and the first rotating shaft 2 and the second rotating shaft 12 are parallel, and through the setting of the second housing 13, the iron ring 5 and the first housing 3, the second housing 13 is fixedly connected with the first housing 3 through the iron ring 5 in use, and the fastening between the second housing 13, the iron ring 5 and the first housing 3 is realized by bolt connection, so that the first housing 3 and the second housing 13 are combined into a relatively closed and stable whole, which can provide effective protection for various internal components.

[0025] Further, the outer size of the second rotating shaft 12 is consistent with the inner size of the second rotating groove 14, and the second housing 13 is bolted with the iron ring 5, and through the setting of the second rotating shaft 12 and the second rotating groove 14, the second rotating groove 14 limits the second rotating shaft 12 in use, so that the second rotating shaft 12 rotates in the second rotating groove 14, so that the motor runs more stably.

[0026] Working principle: when the current is passed into the winding of the stator 11, according to the law of electromagnetic induction, the winding of the stator 11 will generate a rotating magnetic field, since the first magnetic steel 7 and the second magnetic steel 8 are fixed inside the iron ring 5 and are in a specific N-S-N-S distribution, the rotating magnetic field interacts with the magnetic field generated by the first magnetic steel 7 and the second magnetic steel 8, under the interaction of the magnetic field, the electromagnetic force generated will drive the motor shaft 1 to rotate, the double magnetic circuit structure of the first magnetic steel 7 and the second magnetic steel 8 and the unique distribution mode can provide stronger and more stable magnetic field compared with the traditional single magnetic circuit motor, the same-pole magnetic steel and gap design at the connection of the first magnetic steel 7 and the second magnetic steel 8 optimizes the magnetic field distribution, further improves the power output characteristics of the motor, so that the motor can run efficiently and stably under different load conditions, and the motor can convert electrical energy into mechanical energy more effectively, finally drive the wheel hub 6 connected with the iron ring 5 to rotate, realize the driving forward or backward movement of the electric vehicle, and in the whole running process, the motor can keep low noise level and good temperature stability, adapt to various complex use environments.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electric motor for an electric vehicle comprising a motor shaft (1), characterised in that: The outer side surface of the motor shaft (1) is fixedly connected with a first rotating shaft (2), the outer side surface of the first rotating shaft (2) is rotatably connected with a first shell (3), the inner side surface of the first shell (3) is provided with a first rotating groove (4), one side surface of the first shell (3) is fixedly connected with an iron ring (5), the outer side surface of the iron ring (5) is fixedly connected with a hub (6), the inner side surface of the iron ring (5) is fixedly connected with a first magnetic steel (7), the inner side surface of the iron ring (5) is fixedly connected with a second magnetic steel (8), the outer side surface of the motor shaft (1) is fixedly connected with a fixed frame (9), the inner side surface of the fixed frame (9) is provided with a rotating groove (10), the outer side surface of the fixed frame (9) is fixedly connected with a stator (11), the outer side surface of the motor shaft (1) is fixedly connected with a second rotating shaft (12), the outer side surface of the second rotating shaft (12) is rotatably connected with a second shell (13), and the inner side surface of the second shell (13) is provided with a second rotating groove (14).

2. The electric vehicle motor of claim 1, wherein: The outer side size of the first rotating shaft (2) is consistent with the inner side size of the first rotating groove (4), and the first shell (3) is bolted with the iron ring (5) through bolts.

3. The electric vehicle motor of claim 1, wherein: The N-S-N-S distribution of the first magnetic steel (7) is connected in a circle, and the two connected first magnetic steel (7) and second magnetic steel (8) are same-pole magnetic steels.

4. The electric vehicle motor of claim 1, wherein: The two magnetic steels connected between the first magnetic steel (7) and the second magnetic steel (8) leave a certain gap, and the N-S-N-S distribution of the second magnetic steel (8) is connected in a circle.

5. The electric vehicle motor of claim 1, wherein: The motor shaft (1) is fixedly connected with the stator (11) through the fixed frame (9), and the inner side size of the rotating groove (10) is consistent with the outer side size of the motor shaft (1).

6. The electric vehicle motor of claim 1, wherein: The second shell (13) is fixedly connected with the first shell (3) through the iron ring (5), and the first rotating shaft (2) and the second rotating shaft (12) are parallel.

7. The electric vehicle motor of claim 1, wherein: The outer side size of the second rotating shaft (12) is consistent with the inner side size of the second rotating groove (14), and the second shell (13) is bolted with the iron ring (5) through bolts.

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