Anti-falling end cover structure of hub motor and hub motor

Abstract

The utility model relates to the technical field of hub output, in particular to a hub motor anti-drop end cover structure and a hub motor, which comprise a rotor shell, a magnet yoke and an end cover, the rotor shell is provided with a cavity, the magnet yoke is arranged on the inner side surface of the cavity, and the rotor shell is provided with a contact surface at the port of the cavity. The end cover is arranged at the port of the cavity and attached to the contact surface, a connecting clamping groove is formed in the opening of the cavity, and a boss is arranged between the connecting clamping groove and the contact surface; the end cover is provided with an assembly connecting ring, the inner side face of the boss is attached to the outer side face of the assembly connecting ring, a filling groove is formed in the position, close to the connecting clamping groove, of the assembly connecting ring, the filling groove is filled with an adhesive, and the adhesive is used for connecting the end cover and the magnet yoke. According to the utility model, the problem that the end cover of the existing hub motor is easy to fall off is solved, the magnet yoke and the end cover are connected by adopting viscose water, the structural connection is stable, and the phenomenon of falling off is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub output, in particular to a wheel hub motor anti-dropping end cover structure and a wheel hub motor. Background Art

[0002] A hub motor generally refers to an electric drive system integrated into the wheel hub of a mobile device. This type of motor is commonly used in electric vehicles, hybrid vehicles, intelligent robots, and other fields. They directly drive the wheel hub of the device to provide power. Hub motors have many advantages. First, because the motor is directly mounted on the wheel, the number of transmission devices is reduced, the structure of the entire mobile device is simplified, and the loss of energy transmission is reduced. Second, the low center of gravity design of the hub motor helps to improve the stability of movement.

[0003] The existing wheel hub motor will inevitably encounter the phenomenon of driving shaking during use, and the end cover is prone to loosening and falling off, which will cause the motor to be unusable or require maintenance. Therefore, it is necessary to further improve the existing wheel hub motor. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a hub motor anti-falling end cover structure and a hub motor which solves the problem that the end cover of the existing hub motor is easy to fall off. The yoke is connected to the end cover by glue, and the structural connection is stable and will not fall off.

[0005] The technical solution adopted by the utility model is: a hub motor anti-detachment end cover structure, comprising a rotor shell, a yoke and an end cover, the rotor shell is provided with a cavity, the yoke is arranged in the cavity and is located on the inner side of the rotor shell; the end of the rotor shell has an opening, and a contact surface is provided at the opening, the end cover is arranged at the opening of the rotor shell and fits with the contact surface; the rotor shell is provided with a connecting groove close to the opening, and a boss is provided between the connecting groove and the contact surface; the end cover is provided with an assembly connecting ring, the inner side surface of the boss fits with the outer side surface of the assembly connecting ring, and the assembly connecting ring is provided with a filling groove close to the connecting groove, the filling groove is filled with an adhesive, and the adhesive is used to connect the end cover and the yoke.

[0006] A further improvement to the above scheme is that a magnetic steel bracket is provided at the bottom of the rotor housing at the cavity, a plurality of magnetic steel bodies are mounted on the magnetic steel bracket, and the end face of the assembly connecting ring is close to or in contact with one end of the magnetic steel body.

[0007] A further improvement to the above solution is that a side surface of the connecting slot away from the end cover is higher than or flush with an end surface of the magnetic steel body.

[0008] A further improvement to the above solution is that a guiding arc surface is provided at one end of the connecting slot close to the contact surface.

[0009] A further improvement to the above solution is that the magnetic yoke is arranged in the cavity of the rotor housing by integral molding.

[0010] A further improvement to the above solution is that a contact step is provided on the outer periphery of the end cover on the assembly connection ring, and one side of the contact step is in contact with the contact surface.

[0011] A further improvement to the above solution is that the contact step is provided with a slot, and one end of the slot is connected to the assembly connection ring.

[0012] A further improvement to the above solution is that a connecting buckle is provided on the outer periphery of the assembly connecting ring, and the connecting buckle is used to be clamped on the connecting slot.

[0013] A further improvement to the above solution is that the filling groove is arranged on a side close to the connecting buckle.

[0014] A hub motor comprises the hub motor anti-detachment end cover structure.

[0015] The beneficial effects of the utility model are:

[0016] Compared with the existing hub motor, the utility model is provided with a filling groove on the assembly connection ring, and the filling groove is filled with adhesive so that the end cover and the yoke are bonded, and the adhesive is used to fill and bond after assembly, so that the connection between the two is stable and will not fall off. Furthermore, a connecting card slot is also provided to cooperate with the card connection of the assembly connection ring, and during the assembly process, a fixed card connection can be performed to further ensure the stability of the connection, and the stability of the structural connection is ensured after filling with glue. The problem that the end cover of the existing hub motor is easy to fall off is solved, and the yoke is connected to the end cover with adhesive, and the structural connection is stable and will not fall off.

[0017] The utility model forms a high-strength connection between the end cover and the rotor housing through the design of the boss, the connection slot and the assembly connection ring, which can effectively prevent the end cover from falling off or loosening during operation, and improve the stability and reliability of the overall structure. The end cover is attached to the contact surface and connected by an adhesive, which can form a good sealing effect, effectively prevent external substances such as dust and water vapor from entering the inside of the hub motor, protect the motor components from being affected by the external environment, and extend the service life of the motor. The adhesive filled in the filling groove can provide a stable bonding effect, ensure the firm connection between the end cover and the yoke, and at the same time have a certain anti-vibration and anti-vibration ability, which improves the durability and stability of the overall structure. The design of the boss can provide positioning and alignment functions during assembly, making the end cover more accurate and stable during installation, reducing assembly errors, and ensuring the consistency and stability of the structure. It can reduce the use of materials, reduce manufacturing costs, and improve production efficiency while ensuring the connection strength and sealing. The technical effects of high-strength connection, excellent sealing performance, reliable bonding effect, precise assembly characteristics and saving material costs are achieved, which provides important guarantees for the safe and stable operation of the motor and the control of production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the anti-detachment end cover structure of the hub motor of the utility model;

[0019] Figure 2 for Figure 1 A top view of the anti-drop end cover structure of the mid-wheel hub motor;

[0020] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0021] Figure 4 for Figure 3 A is an enlarged schematic diagram;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of the end cover of the anti-drop end cover structure of the mid-wheel hub motor;

[0023] Figure 6 It is a three-dimensional schematic diagram of the hub motor of the utility model.

[0024] Explanation of the accompanying drawings: rotor housing 1, cavity 11, contact surface 12, connecting slot 13, guide arc surface 131, boss 14, magnetic steel bracket 15, magnetic steel body 16, yoke 2, end cover 3, assembly connecting ring 31, connecting buckle 311, filling groove 32, contact step 33, slot 331. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 6 As shown, in one embodiment of the utility model, a hub motor anti-detachment end cover structure is involved, including a rotor housing 1, a yoke 2 and an end cover 3, wherein the rotor housing 1 is provided with a cavity 11, and the yoke 2 is arranged in the cavity 11 and located on the inner side of the rotor housing. The end of the rotor housing 1 has an opening, and a contact surface 12 is arranged at the opening, and the end cover 3 is arranged at the opening of the rotor housing 1 and fits with the contact surface 12, and the rotor housing 1 is provided with a connecting slot 13 near the opening, the connecting slot 13 is connected with the cavity 11, and a boss 14 is arranged between the connecting slot 13 and the contact surface 12; the end cover 3 is provided with an assembly connection ring 31, and the inner side of the boss 14 fits with the outer side of the assembly connection ring 31, and the assembly connection ring 31 is provided with a filling slot 32 near the connection slot 13, and the filling slot 32 is filled with an adhesive, and the adhesive is used to connect the end cover 3 and the yoke 2. In this embodiment, a filling groove 32 is provided on the assembly connection ring 31, and an adhesive is filled in the filling groove 32 to make the end cover 3 and the yoke 2 bonded. After assembly, the adhesive is used to fill and bond them. The connection between the two is stable and will not fall off. Furthermore, a connecting card slot 13 is also provided to cooperate with the card connection of the assembly connection ring 31. During the assembly process, it can be fixed and carded to further ensure the stability of the connection. After filling with glue, the stability of the structural connection is guaranteed. The problem that the end cover 3 of the existing hub motor is prone to falling off is solved. The adhesive is preferably glue. The yoke 2 is connected to the end cover 3 by glue. The structural connection is stable and will not fall off.

[0028] In this embodiment, through the design of the boss 14, the connecting slot 13 and the assembly connecting ring 31, a high-strength connection is formed between the end cover 3 and the rotor housing 1, which can effectively prevent the end cover 3 from falling off or loosening during operation, thereby improving the stability and reliability of the overall structure.

[0029] In the above embodiment, the end cover 3 is attached to the contact surface 12 and connected with an adhesive, which can form a good sealing effect, effectively prevent external substances such as dust and water vapor from entering the inside of the hub motor, protect the motor components from the external environment, and extend the service life of the motor.

[0030] In the above embodiment, the adhesive filled in the filling groove 32 can provide a stable bonding effect, ensuring a firm connection between the end cover 3 and the yoke 2, while having a certain anti-vibration and anti-shock capability, thereby improving the durability and stability of the overall structure.

[0031] In the above embodiment, the design of the boss 14 can provide positioning and alignment functions during assembly, making the end cover 3 more accurate and stable during installation, reducing assembly errors, and ensuring the consistency and stability of the structure. It can reduce the amount of material used, reduce manufacturing costs, and improve production efficiency while ensuring connection strength and sealing. It achieves the technical effects of high-strength connection, excellent sealing performance, reliable bonding effect, precise assembly characteristics, and saving material costs, providing important guarantees for the safe and stable operation of the motor and the control of production costs.

[0032] The rotor housing 1 is provided with a magnetic steel bracket 15 at the bottom of the cavity 11, and a plurality of magnetic steel bodies 16 are installed on the magnetic steel bracket 15, and the end face of the assembly connection ring 31 is close to or in contact with one end of the magnetic steel body 16. In this embodiment, the magnetic steel bracket 15 and the plurality of magnetic steel bodies 16 installed thereon provide additional support and stability, making the bottom of the entire rotor housing 1 more solid and stable, helping to reduce vibration and deformation, and improving the running stability of the motor. The setting of the magnetic steel bracket 15 increases the mechanical strength of the entire structure, can better withstand external impact and pressure, effectively protect the internal motor components, and reduce the risk of damage caused by external factors. The plurality of magnetic steel bodies 16 installed on the magnetic steel bracket 15 can optimize the distribution of the magnetic field, improve the magnetic field efficiency and performance stability of the motor, and help improve the working efficiency and output performance of the motor. The end face of the assembly connection ring 31 is close to or in contact with one end of the magnetic steel body 16, which can achieve precise positioning and alignment, ensure the position accuracy of the end cover 3 during the assembly process, and improve the efficiency and accuracy of the assembly.

[0033] A side surface of the connecting slot 13 away from the end cover 3 is higher than or flush with an end surface of the magnetic steel body 16. Specifically, the two planes are roughly on the same level to ensure the compactness and stability of the structure.

[0034] The magnetic yoke 2 is integrally formed and arranged in the cavity 11 of the rotor housing 1. In this embodiment, the integrally formed magnetic yoke 2 structure is adopted, which is stable and reliable and convenient for installing the magnetic steel.

[0035] The end cap 3 is provided with a contact step 33 on the outer periphery of the assembly connection ring 31, and one side of the contact step 33 contacts the contact surface 12. In this embodiment, the contact installation is performed through the contact step 33 of the end cap 3, which ensures the structural stability and the structural sealing, and protects the internal components.

[0036] The contact step 33 is provided with a slot 331, one end of which is connected to the assembly connection ring 31. In this embodiment, the slot 331 is used to open the end cover 3 to insert a tool, so that the end cover 3 is opened by force to maintain the internal structure.

[0037] The outer periphery of the assembly connection ring 31 is provided with a connection buckle 311, and the connection buckle 311 is used to be clamped on the connection clamping slot 13. In this embodiment, the connection buckle 311 is clamped on the connection clamping slot 13, which can further ensure the stability and reliability of the structure.

[0038] A guide arc surface 131 is provided at one end of the connection slot 13 close to the contact surface 12. In this embodiment, the guide arc surface 131 is used to guide the connection buckle 311 during assembly, which makes assembly more convenient. Even during disassembly, the slot 331 can play a guiding role when a tool is inserted and pried to a certain position.

[0039] The filling groove 32 is arranged on a side close to the connection buckle 311. In this embodiment, the filling groove 32 cooperates with the connection buckle 311, so that the adhesive connects the assembly connection ring 31 with the boss 14, and the connection buckle 311 connects with the connection slot 13.

[0040] See also Figure 6 As shown, a hub motor includes the above-mentioned anti-detachment end cover structure, a tire is sleeved on the outside of the rotor housing 1, and a base and a stator element are arranged inside to cooperate with the magnetic steel to realize the operation of the hub motor.

[0041] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A hub motor anti-drop end cover structure, characterized in that: It includes a rotor shell, a yoke and an end cover, wherein the rotor shell is provided with a cavity, the yoke is arranged in the cavity and is located on the inner side of the rotor shell; the end of the rotor shell has an opening, and a contact surface is arranged at the opening, the end cover is arranged at the opening of the rotor shell and fits with the contact surface; the rotor shell is provided with a connecting slot near the opening, and a boss is arranged between the connecting slot and the contact surface; the end cover is provided with an assembly connecting ring, the inner side surface of the boss fits with the outer side surface of the assembly connecting ring, and the assembly connecting ring is provided with a filling groove near the connecting slot, the filling groove is filled with an adhesive, and the adhesive is used to connect the end cover and the yoke.

2. The anti-detachment end cover structure of the hub motor according to claim 1, characterized in that: The rotor housing is provided with a magnetic steel bracket at the bottom of the cavity, and a plurality of magnetic steel bodies are installed on the magnetic steel bracket. The end face of the assembly connection ring is close to or in contact with one end of the magnetic steel body.

3. The anti-detachment end cover structure of the hub motor according to claim 2, characterized in that: A side surface of the connecting slot away from the end cover is higher than or flush with an end surface of the magnetic steel body.

4. The anti-detachment end cover structure of the hub motor according to claim 1, characterized in that: The magnetic yoke is arranged in the cavity of the rotor housing by integral molding.

5. The anti-detachment end cover structure of the hub motor according to claim 1, characterized in that: The end cover is provided with a contact step on the outer periphery of the assembly connection ring, and one side of the contact step is in contact with the contact surface.

6. The anti-detachment end cover structure of the hub motor according to claim 5, characterized in that: The contact step is provided with a slot, and one end of the slot is connected to the assembly connection ring.

7. The anti-detachment end cover structure of the hub motor according to claim 1, characterized in that: A connecting buckle is arranged on the outer periphery of the assembly connecting ring, and the connecting buckle is used to be clamped on the connecting slot.

8. The anti-detachment end cover structure of the hub motor according to claim 7, characterized in that: A guiding arc surface is arranged at one end of the connection slot close to the contact surface.

9. The anti-detachment end cover structure of the hub motor according to claim 7, characterized in that: The filling slot is arranged on a side close to the connecting buckle.

10. A hub motor, characterized in that: It comprises the anti-detachment end cover structure of the hub motor as claimed in any one of claims 1 to 9.

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