Motor hub structure

Abstract

The utility model discloses a motor hub structure in the technical field of electric vehicles, which comprises a hub, a stator is fixedly mounted in the hub, a first rotor is movably mounted right on the left side of the stator, a second rotor is movably mounted right on the right side of the stator, and a plurality of grooves are respectively formed in the left side and the right side of the stator. By improving the rotor, the efficiency is improved, the energy loss can be effectively reduced, the copper loss and the iron loss are relatively low, the efficiency of the motor can be greatly improved and even exceed the national first-level energy efficiency level, and in an energy-saving test of a conventional water pump and a fan, compared with an induction motor, the energy is saved by about 15%-25%; by installing the optimally designed winding structure and reasonably distributing the number of turns and the arrangement mode of the windings, higher power and torque can be output under the same size or weight, and the optimized winding structure can reduce the resistance loss and improve the current transmission efficiency, so that higher power and torque output is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a motor hub structure. Background Art

[0002] In recent years, electric vehicles have entered the lives of more and more people, not only effectively avoiding traffic congestion, but also saving costs for living transportation expenses. However, generally, electric vehicles are driven by hub motors. The rotor of the hub motor is located around the stator and surrounds the stator. The rotor is used to cooperate with the stator. When powered on, a torque is generated between the rotor and the stator through electromagnetic induction, thereby driving the hub end cover to rotate. The coil is the basic unit that makes up the motor winding. Different motors have different winding forms. Except for centralized windings such as the excitation winding of a DC motor and windings with an overall structure such as a cage rotor, it is usually composed of one or more insulated wires wound and tied in a coil winding mold according to a certain number of turns and shapes. The number of turns of the winding and the size of the motor are relatively fixed, and the power of motors of the same size varies little. Therefore, how to improve the power of the motor while keeping the size of the motor unchanged is the technical problem to be solved by the utility model.

[0003] The existing patent with the publication number CN220754462U discloses a hub motor structure. This hub motor structure includes a hub motor housing, a hub motor cover, and a wound stator. A hub motor cover is provided on one side of the hub motor housing. The wound stator is located between the hub motor housing and the hub motor cover. Winding bosses are respectively provided on the two vertical surfaces of the wound stator, and coils are wound on two adjacent winding bosses. Magnet assembly surfaces are respectively provided on the hub motor housing and the hub motor cover corresponding to the wound stator, and magnets are assembled on the magnet assembly surfaces. Its beneficial effects are: the structure of the utility model is simple and convenient to assemble, changing the traditional winding method of the motor, making the contact surface between the copper wire and the magnet large, and making the motor power greater under the same size of the motor.

[0004] The special structure of the existing motor leads to high manufacturing difficulty and cost. The magnetic circuit design is complex and requires precise calculation and optimization. There are strict requirements for the axial dimension stability, increasing the design and manufacturing difficulty. There may also be problems of uneven heat dissipation, and a heat dissipation system needs to be carefully designed. For this reason, we propose a motor hub structure to solve the above-mentioned problems. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of the present invention, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the present utility model is to provide a motor hub structure, which can solve the problems that the special structure of the existing motor leads to high manufacturing difficulty and cost, the magnetic circuit design is complex and requires precise calculation and optimization, the axial dimension stability is strictly required, increasing the design and manufacturing difficulty, and there may also be uneven heat dissipation, and a carefully designed heat dissipation system is needed.

[0007] To solve the above technical problems, the present utility model provides a motor hub structure, adopting the following technical solutions: including a hub, a stator is fixedly installed inside the hub, a first rotor is movably installed directly to the left of the stator, a second rotor is movably installed directly to the right of the stator, a plurality of grooves are respectively opened on both the left and right sides of the stator, and iron cores are fixedly installed inside the grooves.

[0008] Optionally, a first rotor fixator is fixedly installed on the back of the first rotor, a plurality of coil regions are fixedly installed on the front of the first rotor, each coil region is composed of a plurality of coil circuits, and three electrodes are fixedly installed on the first rotor.

[0009] Optionally, a second rotor fixator is fixedly installed on the back of the second rotor, a plurality of coil regions are fixedly installed on the front of the second rotor, each coil region is composed of a plurality of coil circuits, and three electrodes are fixedly installed on the first rotor.

[0010] Optionally, a hole is opened in the middle between the stator and the first rotor and the second rotor, and a wheel bearing is movably installed in the hole.

[0011] Optionally, a plurality of wire grooves are opened on the fronts of both the first rotor fixator and the second rotor fixator.

[0012] Optionally, a hub is fixedly installed outside the stator and the first rotor and the second rotor, and a tire is fixedly installed outside the hub.

[0013] In summary, the present utility model includes at least one of the following beneficial effects: 1. By improving the rotor, the efficiency is improved, and the energy loss can be effectively reduced. Its copper loss and iron loss are relatively low, and the motor efficiency can be greatly improved. Through the careful planning and layout integration of each component, the installation space is significantly saved, which is conducive to the design and layout of equipment and vehicles to be more perfect and optimized.

[0014] 2. By installing an optimized winding structure, reasonably distributing the number of winding turns and the arrangement method, etc., a larger power and torque can be output under the same volume or weight. The optimized winding structure can reduce the resistance loss, improve the current transmission efficiency, increase the effective utilization rate of the magnetic field, and thus achieve a larger power and torque output. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the front view structure of the first rotor of the present invention;

[0018] Figure 3 It is a schematic diagram of the front view structure of the second rotor of the present invention;

[0019] Figure 4 It is a schematic diagram of the front view structure of the stator of the present invention;

[0020] Figure 5 It is a schematic diagram of the front view structure of the first rotor retainer of the present invention;

[0021] Figure 6 It is a schematic diagram of the front view of the second rotor retainer of the present invention.

[0022] Explanation of reference numerals: 1, hub; 2, stator; 3, first rotor; 4, second rotor; 5, groove; 6, iron core; 7, first rotor retainer; 8, second rotor retainer; 9, coil area; 10, coil circuit; 11, electrode; 12, hole; 13, wheel bearing; 14, wire groove; 15, tire. Specific embodiments

[0023] The following will further elaborate on the present invention in conjunction with the attached Figures 1-6 For a more detailed description of the present invention.

[0024] Embodiment 1, referring to Figures 1-6 , in this embodiment, in order to solve the problems of the existing motor, such as the special structure leading to high manufacturing difficulty and cost, complex magnetic circuit design requiring precise calculation and optimization, strict requirements for axial dimension stability, increasing design and manufacturing difficulty, and possible uneven heat dissipation, requiring careful design of the heat dissipation system, the present invention discloses a motor hub structure,

[0025] It includes a wheel hub 1, inside which a stator 2 is fixedly installed. A first rotor 3 is movably installed directly to the left of the stator 2, and a second rotor 4 is movably installed directly to the right of the stator 2. A number of grooves 5 are respectively opened on both the left and right sides of the stator 2, and iron cores 6 are fixedly installed inside the grooves 5. By installing the iron cores 6 in the grooves 5, the purpose of enhancing the magnetic field intensity is achieved, and the effect of improving the power output of the motor is realized.

[0026] A first rotor fixer 7 is fixedly installed on the back of the first rotor 3. A number of coil areas 9 are fixedly installed on the front of the first rotor 3. The coil areas 9 are composed of a number of coil circuits 10. Three electrodes 11 are fixedly installed on the first rotor 3. By installing multiple coil areas and circuits, the purpose of generating a strong and stable magnetic field is achieved, and the effect of enhancing the power output of the motor is realized.

[0027] A second rotor fixer 8 is fixedly installed on the back of the second rotor 4. A number of coil areas are fixedly installed on the front of the second rotor 4. The coil areas 9 are composed of a number of coil circuits 10. Three electrodes 11 are fixedly installed on the first rotor 3. By adopting a structure similar to that of the first rotor 3, the purpose of balancing the power output of the motor is achieved, and the effect of improving the overall performance of the motor is realized.

[0028] A hole 12 is opened in the middle between the stator 2, the first rotor 3, and the second rotor 4, and a wheel bearing 13 is movably installed in the hole 12. By opening the hole 11 in the middle and installing the wheel bearing 12, the purpose of reducing transmission loss is achieved, and the effect of improving the energy utilization efficiency is realized.

[0029] A number of wire grooves 14 are respectively opened on the fronts of the first rotor fixer 7 and the second rotor fixer 8. By opening the wire grooves 13, the purpose of optimizing the circuit layout is achieved, and the effects of reducing electromagnetic interference and improving the working efficiency of the motor are realized.

[0030] The stator 2, the first rotor 3, and the second rotor 4 are externally fixedly installed with the wheel hub 1, and a tire 15 is fixedly installed outside the wheel hub 1. By installing such an overall structure, the purpose of making the structure compact and saving space is achieved, and the effect of being convenient for installation and maintenance is realized.

[0031] The specific working principle is as follows: By installing the iron core 6 in the groove 5, the purpose of enhancing the magnetic field intensity is achieved, and the effect of improving the motor power output is realized. By installing multiple coil regions 9 and circuits, the purpose of generating a strong and stable magnetic field is achieved, and the effect of enhancing the motor power output is realized. By adopting a structure similar to that of the first rotor 3, the purpose of balancing the motor power output is achieved, and the effect of improving the overall performance of the motor is realized. By opening a hole 12 in the middle and installing the wheel bearing 13, the purpose of reducing transmission loss is achieved, and the effect of improving the energy utilization efficiency is realized. By installing such an overall structure, the purpose of making the structure compact and saving space is achieved, and the effect of facilitating installation and maintenance is realized.

[0032] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A motor hub structure, comprising a hub (1), characterized in that: A stator (2) is fixedly installed inside the hub (1). A first rotor (3) is movably installed directly to the left of the stator (2), and a second rotor (4) is movably installed directly to the right of the stator (2). A number of grooves (5) are respectively formed on both the left and right sides of the stator (2), and iron cores (6) are fixedly installed inside the grooves (5).

2. The motor hub structure according to claim 1, wherein: A first rotor fixture (7) is fixedly installed on the back of the first rotor (3). A number of coil regions (9) are fixedly installed on the front of the first rotor (3). The coil regions (9) are composed of a number of coil circuits (10). Three electrodes (11) are fixedly installed on the first rotor (3).

3. The motor hub structure according to claim 2, wherein: A second rotor fixture (8) is fixedly installed on the back of the second rotor (4). A number of coil regions are fixedly installed on the front of the second rotor (4). The coil regions (9) are composed of a number of coil circuits (10). Three electrodes (11) are fixedly installed on the first rotor (3).

4. A motor hub structure according to claim 1, characterized in that: A hole (12) is formed in the middle between the stator (2), the first rotor (3), and the second rotor (4), and a wheel bearing (13) is movably installed in the hole (12).

5. A motor hub structure according to claim 3, characterized in that: A number of wire grooves (14) are formed on the fronts of both the first rotor fixture (7) and the second rotor fixture (8).

6. The motor hub structure according to claim 1, characterized in that: The stator (2), the first rotor (3), and the second rotor (4) are externally fixedly installed with a hub (1), and a tire (15) is fixedly installed outside the hub (1).

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