Iron core rubber coating structure and motor

Abstract

The utility model relates to the technical field of motors, in particular to an iron core rubber coating structure and a motor, the iron core rubber coating structure comprises a base, a stator iron core and a rubber coating framework which is coated outside the stator iron core and is connected with the base, and the rubber coating framework is coated outside the stator iron core through injection molding and is integrated with the base. A stator core is prepared and formed in a stamping mode, meanwhile, a base is formed through machining, then the stator core and the base are assembled and put into a mold of rubber coating equipment, rubber is injected into the mold through the rubber coating equipment, and a rubber coating framework is formed outside the core and at the position of the base through injection molding. According to the utility model, the base and the stator core are connected into a whole in a rubber coating injection molding manner, and two original accessories are changed into a single accessory, so that the motor assembly process is more convenient, and the precision is easier to master.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an iron core rubber-coated structure and a motor. Background Art

[0002] A brushless motor is a type of motor, also known as a brushless DC motor or an electronically controlled speed motor. Compared to conventional brushed DC motors, brushless motors do not require brushes and collector rings for commutation, so they have higher efficiency, longer life, and lower maintenance requirements. The working principle of a brushless motor is to use an electronic controller to achieve timely switching of current to drive the motor rotor to rotate. It usually consists of a stator and a rotor. The stator contains several coils that generate a rotating magnetic field by switching current. The rotor is equipped with permanent magnets or magnets, which rotate due to the rotating magnetic field.

[0003] The iron core is one of the essential components inside the motor. However, the existing iron core structure needs to be coated with rubber on the outside before installation and use. However, since the iron core and the installation part are designed separately, the installation process is more complicated and the accuracy is more difficult to control. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a core rubber-coated structure and a motor which are connected to form a whole by rubber-coated injection molding, and the original two accessories are formed into a single accessory, which is more convenient in the motor assembly process and the precision is easier to control.

[0005] The technical solution adopted by the utility model is: a core rubber-coated structure, comprising a base, a stator core and a rubber-coated frame coated on the outside of the stator core and connected to the base, the rubber-coated frame is coated on the outside of the stator core by injection molding and forms an integral body with the base.

[0006] A further improvement to the above solution is that the base includes a fixed mounting portion and a stator mounting portion, the fixed mounting portion is arranged at one end of the stator mounting portion, and the rubber-coated frame is used to cover the stator core in the stator mounting portion.

[0007] A further improvement to the above solution is that the fixed mounting portion protrudes outward and is provided with a mounting platform, a mounting hole is provided on the mounting platform, a rotating mounting cavity is centrally provided on the mounting platform, and one end of the rotating mounting cavity passes through the stator mounting portion.

[0008] A further improvement to the above solution is that a limiting step is provided on one side of the stator mounting portion close to the fixed mounting portion, the inner diameter of the stator core fits in the stator mounting portion, and one side abuts against the limiting step.

[0009] A further improvement to the above solution is that a rubber coating groove is provided on the outer side of the limiting step, and a filling block is provided on the rubber coating frame, and the filling block is used to fill the rubber coating groove.

[0010] A further improvement to the above solution is that a rubber-coated liner is provided on the inner side of the rubber-coated frame, and the rubber-coated liner is used to cover the inside of the stator core and fix it on the base.

[0011] A further improvement to the above scheme is that a directional positioning groove is provided on the outer side of the stator mounting portion, and a positioning groove is provided on the stator core. The positioning groove cooperates with the directional positioning groove to form a positioning hole. A positioning pin is provided on the positioning hole, and the positioning pin is used for positioning the stator core after cooperation with the stator mounting portion.

[0012] A further improvement to the above scheme is that a plurality of tooth blocks are evenly distributed on the outer circumference of the stator core, tooth grooves are provided between two adjacent tooth blocks, and stop blocks are provided at the outer ends of the tooth blocks; the rubber-coated frame covers the tooth blocks and the stop blocks by injection molding.

[0013] A motor comprises the iron core rubber-coated structure.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the existing motor core structure, the utility model connects the base and the core into one piece by means of plastic injection molding, and the original two accessories are formed into a single accessory, which is more convenient in the motor assembly process and the precision is easier to control. The motor is more stable and reliable when in use. The problem of complex structure, high assembly difficulty and insufficient stability of the existing motor is solved.

[0016] The utility model effectively reinforces and supports the stator core through the injection molding of the rubber-coated skeleton. This design can improve the structural strength of the entire motor, enable it to withstand greater loads and vibrations, and reduce deformation and damage caused by external forces. The injection molding of the rubber-coated skeleton forms a buffer layer on the outside of the stator core, which can effectively absorb the vibration and impact force generated when the motor is running. This can reduce the noise level of the motor, reduce interference with the surrounding environment and equipment, and provide a quieter and more comfortable working environment. The injection molding of the rubber-coated skeleton can provide good insulation protection. It can block the intrusion of external moisture, dust and impurities, and reduce the risk of insulation aging and failure of the motor. This helps to improve the reliability and service life of the motor. The injection molding of the rubber-coated skeleton can increase the surface area of ​​the stator core and improve the heat dissipation effect. It can increase the contact area with the surrounding environment, promote the conduction and dissipation of heat, effectively reduce the temperature of the motor, and improve work efficiency and stability. By injection molding the overmolded frame onto the stator core and integrating it with the base, the number and complexity of parts can be reduced, space can be saved, and installation and integration into various motor systems can be facilitated.

[0017] The core encapsulation process is to assemble the stator core with the base and inject plastic into the mold to form an encapsulated skeleton so that the core and the base are integrated. This tightly combined design can improve the structural strength of the entire motor, reduce the risk of loosening and falling off, and improve the reliability and stability of the motor. The injection molding process of the encapsulated skeleton provides a buffer layer for the core, which can effectively absorb the vibration and impact generated when the motor is running. This can reduce the noise level of the motor and reduce interference with the surrounding environment and equipment, providing a quieter and more comfortable working environment. The injection molding process of the encapsulated skeleton can provide good insulation protection. It can block the intrusion of external moisture, dust and impurities, and reduce the risk of insulation aging and failure of the motor. This helps to improve the reliability and service life of the motor. The injection molding process of the encapsulated skeleton can increase the surface area of ​​the core and improve the heat dissipation effect. It can increase the contact area with the surrounding environment, promote the conduction and dissipation of heat, effectively reduce the temperature of the motor, and improve work efficiency and stability. The core encapsulation process can improve production efficiency by integrating multiple steps together. The process of stamping the stator core and machining the base can achieve mass production, while the injection molding process can be completed quickly, reducing production cycle and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the iron core rubber-coated structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of top view of the rubber-coated structure of the middle iron core;

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

[0021] Figure 4 for Figure 1 Another perspective of the iron core rubber-coated structure is that it is integrated;

[0022] Figure 5 for Figure 1 Explosion diagram of the core rubber encapsulation structure;

[0023] Figure 6 for Figure 4 A is an enlarged schematic diagram.

[0024] Explanation of the accompanying drawings: base 1, fixed mounting part 11, mounting platform 111, mounting hole 112, rotating mounting cavity 113, stator mounting part 12, limiting step 121, rubber-coated groove 122, direction positioning groove 123, stator core 2, positioning groove 21, positioning pin 22, tooth block 23, stop block 24, rubber-coated frame 3, rubber-coated lining 31. 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 meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein 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.

[0028] like Figure 1 to Figure 6As shown, in one embodiment of the utility model, a core rubber-coated structure is involved, including a base 1, a stator core 2, and a rubber-coated frame 3 coated on the outside of the stator core 2 and connected to the base 1, wherein the rubber-coated frame 3 is coated on the outside of the stator core 2 by injection molding and is integrated with the base 1. In this embodiment, the base 1 and the stator core 2 are connected to form a whole by rubber-coated injection molding, and the original two accessories are formed into a single accessory, which is more convenient in the motor assembly process and the accuracy is easier to control. The motor is more stable and reliable when in use. The problems of complex structure, high assembly difficulty and insufficient stability of existing motors are solved.

[0029] In the above embodiment, the stator core 2 is effectively reinforced and supported by the injection molding of the rubber-coated frame 3. This design can improve the structural strength of the entire motor, enable it to withstand greater loads and vibrations, and reduce deformation and damage caused by external forces.

[0030] In the above embodiment, the injection molding of the rubber-coated frame 3 forms a buffer layer on the outside of the stator core 2, which can effectively absorb the vibration and impact force generated when the motor is running. This can reduce the noise level of the motor and reduce the interference with the surrounding environment and equipment, providing a quieter and more comfortable working environment.

[0031] In the above embodiment, the injection molding of the rubber-coated frame 3 can provide good insulation protection. It can block the intrusion of external moisture, dust and impurities, reduce the risk of insulation aging and failure of the motor, and help improve the reliability and service life of the motor.

[0032] In the above embodiment, the injection molding of the rubber-coated frame 3 can increase the surface area of ​​the stator core 2 and improve the heat dissipation effect. It can increase the contact area with the surrounding environment, promote the conduction and dissipation of heat, effectively reduce the temperature of the motor, and improve the working efficiency and stability. By injection molding the rubber-coated frame 3 on the stator core 2 and forming it as a whole with the base 1, the number and complexity of parts can be reduced, space can be saved, and it is convenient to install and integrate into various motor systems.

[0033] The base 1 includes a fixed mounting portion 11 and a stator mounting portion 12, wherein the fixed mounting portion 11 is arranged at one end of the stator mounting portion 12, and the rubber-coated frame 3 is used to cover the stator core 2 in the stator mounting portion 12. Specifically, the fixed mounting portion 11 protrudes outward and is provided with a mounting platform 111, and a mounting hole 112 is provided on the mounting platform 111. A rotating mounting cavity 113 is centrally provided on the mounting platform 111, and one end of the rotating mounting cavity 113 passes through the stator mounting portion 12. In this embodiment, the fixed mounting portion 11 of the base 1 provides a stable fixed support point by protruding outward and providing the mounting platform 111. This design can ensure the accurate position and stable installation of the stator core 2, prevent it from loosening or displacement when the motor is running, and improve the reliability and stability of the motor. The mounting platform 111 of the base 1 is provided with a mounting hole 112 and a rotating mounting cavity 113. The mounting hole 112 can be easily connected with other components to realize the overall assembly of the motor. The design of the rotating installation cavity 113 makes the installation of the stator core 2 more convenient. The stator core 2 can be easily inserted into the stator mounting portion 12 through the rotating installation cavity 113, thereby improving the installation efficiency. The stator core 2 can be accurately positioned in the stator mounting portion 12 through the rotating installation cavity 113 of the base 1. The stator core 2 can be accurately inserted into the rotating installation cavity 113, and the correct position and symmetry of the stator core 2 can be ensured by fixing the rotating installation cavity 113, thereby ensuring the running balance and stable performance of the motor. The rubber-coated frame 3 covers the stator core 2 in the stator mounting portion 12, providing effective protection for it.

[0034] A limiting step 121 is provided on one side of the stator mounting portion 12 close to the fixed mounting portion 11, and the inner diameter of the stator core 2 is matched in the stator mounting portion 12, and one side is in contact with the limiting step 121. Specifically, a rubber-coated groove 122 is provided on the outside of the limiting step 121, and the rubber-coated frame 3 is provided with a filling block, and the filling block is used to fill the rubber-coated groove 122. In this embodiment, by providing a limiting step 121 on one side of the stator mounting portion 12 close to the fixed mounting portion 11, the stator core 2 can be accurately matched in the stator mounting portion 12 and abut against the limiting step 121. This design ensures the fixed position and symmetry of the stator core 2, and improves the running balance and stable performance of the motor. A rubber-coated groove 122 is provided on the outside of the limiting step 121, and a filling block is provided on the rubber-coated frame 3. The filling block can fill the rubber-coated groove 122 to ensure a tight fit between the rubber-coated frame 3 and the limiting step 121. This rubber-coated fixing design strengthens the connection between the rubber-coated frame 3 and the stator core 2, prevents them from loosening or falling off, and improves the reliability and stability of the motor.

[0035] The inner side of the rubber-coated skeleton 3 is provided with a rubber-coated lining 31, and the rubber-coated lining 31 is used to cover the inside of the stator core 2 and fix it on the base 1. In this embodiment, the rubber-coated lining 31 is located on the inner side of the rubber-coated skeleton 3, and can fit tightly with the inside of the stator core 2. Through injection molding and coating, the rubber-coated lining 31 can accurately cover and fix the stator core 2 to ensure its stability and accurate position. The setting of the rubber-coated lining 31 can prevent the stator core 2 from loosening when the motor is running. It provides additional support and fixation to prevent the stator core 2 from loosening or displacement due to vibration and impact, and improve the reliability and stability of the motor. The setting of the rubber-coated lining 31 can increase the connection strength between the stator core 2 and the base 1. It can provide additional support and fixation, enhance the structural stability between the stator core 2 and the base 1, and improve the vibration resistance and structural strength of the motor.

[0036] See also Figure 6 As shown, the outer side of the stator mounting portion 12 is provided with a direction positioning groove 123, and the stator core 2 is provided with a positioning groove 21, and the positioning groove 21 cooperates with the direction positioning groove 123 to form a positioning hole, and a positioning pin 22 is provided on the positioning hole, and the positioning pin 22 is used for positioning the stator core 2 after cooperating with the stator mounting portion 12. In this embodiment, a precise positioning hole is formed by the cooperation of the direction positioning groove 123 and the positioning groove 21. The positioning pin 22 provided on the positioning hole can ensure the accurate alignment of the stator core 2 and the stator mounting portion 12. This precise positioning design can ensure the correct relative position of each component of the motor, and improve the running balance and stable performance of the motor. In addition to providing the positioning function, the positioning pin 22 can also increase the connection strength between the stator core 2 and the stator mounting portion 12. The setting of the positioning pin 22 makes the stator core 2 and the stator mounting portion 12 tightly fixed, preventing it from loosening or displacement when the motor is running, and improving the reliability and stability of the motor. The coordination of the positioning holes and the positioning pins 22 makes the assembly of the stator core 2 and the stator mounting portion 12 more convenient and efficient. The design of the positioning holes and the positioning pins 22 makes the installation position of the stator core 2 accurate and easy to align, simplifies the assembly process, and improves production efficiency.

[0037] The outer circumference of the stator core 2 is evenly distributed with a plurality of tooth blocks 23, and a tooth groove is provided between two adjacent tooth blocks 23, and a stopper 24 is provided at the outer end of the tooth block 23; the rubber-coated skeleton 3 covers the tooth block 23 and the stopper 24 by injection molding. In this embodiment, by designing that a plurality of tooth blocks 23 are evenly distributed on the outer circumference of the stator core 2, the connection area between the tooth block 23 and the rubber-coated skeleton 3 can be increased. In this way, the fixity of the tooth block 23 can be improved, and it can be prevented from loosening or displacement when the motor is running, and the stability and precise position of the stator core 2 can be ensured. The stopper 24 is arranged at the outer end of the tooth block 23, which can play a protective role. They can prevent external objects from damaging the tooth block 23, and improve the durability and service life of the tooth block 23. Covering the tooth block 23 and the stopper 24 by injection molding can provide additional protection.

[0038] A motor adopts a stator with an iron core rubber-coated structure, wherein the rubber-coated frame 3 covers the tooth block 23 and the stopper 24 by means of injection molding, thereby providing an additional protective layer. The motor assembly process is more convenient, and the precision is easier to control. The motor is more stable and reliable when in use.

[0039] 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 core rubber-coated structure, characterized in that: It includes a base, a stator core, and a rubber-coated frame wrapped around the outside of the stator core and connected to the base. The rubber-coated frame is wrapped around the outside of the stator core by injection molding and forms an integral body with the base. The base includes a fixed mounting portion and a stator mounting portion. The fixed mounting portion is arranged at one end of the stator mounting portion. The rubber-coated frame is used to wrap the stator core inside the stator mounting portion.

2. The core rubber-coated structure according to claim 1, characterized in that: The fixed installation portion protrudes outward and is provided with a mounting platform, and the mounting platform is provided with a mounting hole.

3. The core rubber-coated structure according to claim 2, characterized in that: A rotating installation cavity is centrally arranged on the installation platform, and one end of the rotating installation cavity passes through the stator installation part.

4. The core rubber-coated structure according to claim 1, characterized in that: A limiting step is arranged on one side of the stator mounting portion close to the fixed mounting portion, the inner diameter of the stator core is matched in the stator mounting portion, and one side is in contact with the limiting step.

5. The core rubber-coated structure according to claim 4, characterized in that: The outer side of the limiting step is provided with a rubber coating groove, and the rubber coating frame is provided with a filling block, and the filling block is used to fill the rubber coating groove.

6. The core rubber-coated structure according to claim 1, characterized in that: A rubber-coated liner is arranged on the inner side of the rubber-coated frame, and the rubber-coated liner is used to cover the inside of the stator core and fix it on the base.

7. The core rubber-coated structure according to claim 1, characterized in that: The outer side of the stator mounting portion is provided with a direction positioning groove, and the stator core is provided with a positioning groove. The positioning groove cooperates with the direction positioning groove to form a positioning hole. The positioning hole is provided with a positioning pin, and the positioning pin is used for positioning the stator core after it cooperates with the stator mounting portion.

8. The core rubber-coated structure according to claim 1, characterized in that: A plurality of tooth blocks are evenly distributed on the outer circumference of the stator core, and tooth slots are arranged between two adjacent tooth blocks.

9. The core rubber-coated structure according to claim 8, characterized in that: A stopper is arranged at the outer end of the tooth block; the rubber-coated frame covers the tooth block and the stopper by injection molding.

10. A motor, characterized in that: The invention comprises the core rubber-coated structure as described in any one of claims 1 to 9.

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