Packaging structure of a plastic-sealed outer rotor motor

Abstract

The utility model relates to motor field discloses a kind of packaging structure of plastic package outer rotor motor.The utility model is in, including carton, positioning paperboard, pearl wool positioning, pearl wool pad, support paper partition and the containing space of containing finished motor, positioning paperboard is laid in the bottom and middle part in carton, pearl wool positioning is installed above middle positioning paperboard, and support paper partition is set to well structure and is set above pearl wool positioning, the shaft of finished motor is downward through pearl wool positioning and the shaft hole of middle positioning paperboard, pearl wool pad is placed in the top surface of outer rotor of finished motor, by adjusting the thickness or quantity adaptation of pearl wool pad same series different specifications finished motor, the core composition of explicit packaging structure and the basic assembly relationship of each component, by well support paper partition, the design of adjustable pearl wool pad, solve the problem of improper protection due to single specification of traditional packaging, provide basic structure support for motor transportation protection.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically a packaging structure for a plastic-encapsulated external rotor motor. Background Technology

[0002] External rotor motors are a type of power equipment widely used in aerospace, medical devices, home appliances, electric vehicles, and many other fields. Compared with traditional motors, external rotor motors are characterized by their compact structure, convenient installation, high efficiency, and stable operation.

[0003] Because the outer rotor is prone to noise problems due to stress during packaging and transportation, the requirements for the packaging of outer rotor motors have always been high. As the application scenarios of motors gradually expand, the miniaturization of motors and the diversification of packaging become more and more obvious, and the problem of motor damage caused by improper packaging protection is becoming more and more prominent.

[0004] However, existing external rotor motors suffer from problems such as short body, small size, and diverse body specifications within the same series; difficulty in limiting the motor within the packaging; easy damage to the external rotor under stress, leading to problems such as wave pad failure, poor coaxiality, and rotor deformation and friction; when using paper packaging structures for motors, grid partitions are commonly used for support, but the longitudinal and transverse partition grooves are shallow, and the partitions are prone to loosening; the varying heights of motors within the same series result in too many partition support specifications; and the existing foam packaging structure is difficult to apply to the increasingly diverse specifications of the models, due to the foam molding cycle and cost amortization. Utility Model Content

[0005] The purpose of this utility model is to provide a packaging structure for a plastic-encapsulated external rotor motor in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: A packaging structure for a plastic-sealed external rotor motor includes a carton, positioning cardboard, pearl cotton positioning, pearl cotton pads, supporting paper partitions, and a space for accommodating the finished motor. The positioning cardboard is laid at the bottom and middle of the carton. The pearl cotton positioning is installed above the middle positioning cardboard. The supporting paper partition is set as a grid structure and is set above the pearl cotton positioning. The output shaft of the finished motor passes downward through the output shaft holes of the pearl cotton positioning and the middle positioning cardboard and extends into the grid of the supporting paper partition. The height of the supporting paper partition is 5-15mm higher than the body of the finished motor. The pearl cotton pads are placed on the top surface of the outer rotor of the finished motor, and the stacked pearl cotton pads are 2mm higher than the supporting paper partition.

[0007] In a preferred embodiment, the positioning cardboard is made of corrugated cardboard, and the diameter of the output shaft hole on the positioning cardboard is slightly larger than the output shaft diameter of the finished motor. The positioning cardboard at the bottom of the carton completely covers the bottom surface of the carton.

[0008] In a preferred embodiment, the pearl cotton is made of EPE pearl cotton material, the shaft hole on the pearl cotton positioning is coaxially aligned with the shaft hole of the positioning cardboard, and the top surface of the pearl cotton positioning is tightly fitted with the bottom surface of the supporting paper partition.

[0009] In a preferred embodiment, the supporting paper partition is formed by the interlocking of longitudinal and transverse partitions to create a grid pattern.

[0010] In a preferred embodiment, the pearl cotton pad is made of EPE pearl cotton material, and the pearl cotton pad completely covers the top surface of the outer rotor of the finished motor, and the edge of the pearl cotton pad does not extend beyond the edge of the supporting paper partition.

[0011] In a preferred embodiment, the lead wire of the finished motor is folded and placed in the gap between the grid of the supporting paper partition and the finished motor, and the height of the folded lead wire is not higher than the height of the finished motor body. A buffer gap is provided between the inner wall of the carton and the outer wall of the supporting paper partition, and the gap is filled with EPE pearl cotton strips.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] 1. By using stackable and adjustable pearl cotton pads, universal packaging can be achieved for different specifications of plastic-sealed external rotor motors in the same series. There is no need to design packaging materials separately for each specification, which reduces the types of packaging materials and lowers the cost of packaging material procurement and management. At the same time, the design of the deepened locking groove supporting the paper partition improves the structural stability, avoids packaging failure caused by the loosening of traditional partitions, and reduces packaging loss.

[0014] 2. The supporting paper partition limits the circumference of the plastic-encapsulated stator, ensuring that the outer rotor of the motor is not subjected to external circumferential forces, preventing deformation of the outer rotor and deterioration of coaxiality; the double buffering of pearl cotton positioning and pearl cotton pads can absorb vertical and lateral vibrations during transportation, preventing the wave pads from being compressed and failing; the avoidance of the output shaft hole and the concealed placement of the lead wires further protect the key components of the motor, ensuring that the performance of the motor is not damaged after transportation and reducing the after-sales maintenance rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the motor packaging structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the novel motor support paper partition in this utility model;

[0017] Figure 3 This is a schematic diagram of the finished motor structure in this utility model.

[0018] The markings in the diagram are: 1. Cardboard box; 2. Motor encapsulated stator; 3. Motor outer rotor; 4. Positioning cardboard; 5. Pearl cotton positioning; 6. Pearl cotton pad; 7. Supporting paper partition; 8. Finished motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example:

[0021] Reference Figure 1-3 A packaging structure for a plastic-sealed external rotor motor includes a carton 1, positioning cardboard 4, pearl cotton positioning 5, pearl cotton pads 6, supporting paper partitions 7, and a receiving space for accommodating the finished motor 8. The positioning cardboard 4 is laid at the bottom and middle of the carton 1. The pearl cotton positioning 5 is installed above the middle positioning cardboard 4, and the supporting paper partitions 7 are configured with a grid structure and are positioned above the pearl cotton positioning 5. The output shaft of the finished motor 8 passes downward through the output shaft holes of the pearl cotton positioning 5 and the middle positioning cardboard 4, and extends into the grid of the supporting paper partitions 7. The height of the supporting paper partitions 7 is 5 mm higher than the body of the finished motor 8. -15mm, the pearl cotton pad 6 is placed on the top surface of the outer rotor of the finished motor 8, and the pearl cotton pad 6 is stacked 2mm higher than the supporting paper partition. By adjusting the thickness or quantity of the pearl cotton pad 6, it can be adapted to the finished motors 8 of different specifications in the same series. The core components of the packaging structure and the basic assembly relationship of each component are clarified. Through the design of the grid support paper partition 7 and the adjustable pearl cotton pad 6, the finished motor 8 can be accurately limited while adapting to multiple specifications of motors in the same series. This solves the problem of inadequate protection caused by the single specification of traditional packaging and provides basic structural support for the protection of motor transportation.

[0022] Reference Figure 1-3The positioning cardboard 4 is made of corrugated cardboard, and the diameter of the output shaft hole on the positioning cardboard 4 is slightly larger than the output shaft diameter of the finished motor 8. The positioning cardboard 4 at the bottom of the carton 1 completely covers the bottom surface of the carton 1. The positioning cardboard 4 in the middle is adapted to the size of the supporting paper partition 7 and is used to support the supporting paper partition 7 and the pearl cotton positioning 5. The corrugated cardboard material ensures that the positioning cardboard 4 has sufficient load-bearing strength, which can evenly distribute the pressure of stacked materials and avoid local pressure deformation of the carton 1. The limitation of the output shaft hole diameter not only provides clearance space for the motor output shaft, but also prevents the output shaft from shaking excessively during transportation. At the same time, the division of labor design between the bottom and middle positioning cardboard 4 further improves the stability of the internal structure of the packaging and ensures the balance of force on the motor in the vertical direction.

[0023] Reference Figure 1-3 The pearl cotton is made of EPE pearl cotton. The shaft hole on the pearl cotton positioning 5 is coaxially aligned with the shaft hole on the positioning cardboard 4, and the top surface of the pearl cotton positioning 5 is tightly attached to the bottom surface of the supporting paper partition 7. The high elasticity and low density of EPE pearl cotton can effectively absorb vertical vibration during transportation, reducing the risk of motor component damage caused by vibration. The coaxial design of the pearl cotton positioning 5 and the shaft hole of the positioning cardboard 4 ensures that the motor shaft passes through smoothly and avoids friction damage between the shaft and the hole wall. At the same time, the tight fit between the pearl cotton positioning 5 and the supporting paper partition 7 further enhances the overall integrity and stability of the packaging.

[0024] Reference Figure 1-2 The supporting paper partition 7 is formed by the interlocking of longitudinal and transverse partitions to create a grid pattern. The deepened interlocking grooves prevent structural failure of the supporting paper partition 7 due to loose partitions, thus improving the overall stability of the partition. The design of the grid and the cut edge of the plastic-sealed stator can precisely limit the displacement of the motor in the circumferential direction, ensuring that the outer rotor 3 of the motor is not subjected to external forces in the circumferential direction. This solves the problems of poor coaxiality and rotor friction caused by the deformation of the outer rotor under stress in traditional packaging, thus ensuring the performance of the motor.

[0025] Reference Figure 1-2 The pearl cotton pad 6 is made of EPE pearl cotton and completely covers the top surface of the outer rotor 3 of the finished motor 8. The edge of the pearl cotton pad 6 does not extend beyond the edge of the supporting paper partition 7. The stackable pearl cotton pad 6 design allows the packaging to be adapted to motors of different heights in the same series by adjusting the thickness, reducing the number of packaging materials and lowering packaging costs. The full coverage design of the pearl cotton pad 6 on the top surface of the outer rotor 3 of the motor can not only buffer the vertical impact force and prevent the outer rotor from being deformed by pressure, but also prevent the wave pad from failing due to excessive pressure, thus extending the service life of the motor.

[0026] Reference Figure 1-2The lead wire of the finished motor 8 is folded and placed in the gap between the grid of the supporting paper partition 7 and the finished motor 8. The height of the folded lead wire is not higher than the height of the finished motor 8 body. A buffer gap is provided between the inner wall of the carton 1 and the outer wall of the supporting paper partition 7. The gap is filled with EPE pearl cotton strips. The hidden placement of the lead wire prevents it from being squeezed or pulled during transportation and ensures the integrity of the motor wiring. The buffer gap and pearl cotton strips between the inner wall of the carton 1 and the supporting paper partition 7 can absorb the lateral impact force on the carton 1, further improving the overall cushioning performance of the packaging, reducing the risk of damage to the motor caused by lateral force, and adapting to complex transportation environments.

[0027] The implementation principle of this utility model's packaging structure embodiment for a plastic-encapsulated external rotor motor is as follows:

[0028] For encapsulated external rotor motors of different heights within the same series, the total thickness of the pads is changed by adjusting the number of stacked pearl cotton pads 6, ensuring that the pads are always higher than the supporting paper partition 7. This achieves complete vertical limiting of the motor and adapts to the protection requirements of motors of different heights. The grid design of the supporting paper partition 7, with its cut edges, is suitable for encapsulated stators of different outer diameters within the same series. This allows for circumferential limiting of motors of various specifications without the need to replace the partitions, reducing the number of packaging materials and improving packaging versatility.

[0029] The grid of the supporting paper partition 7 matches the outer circumferential edge of the motor's plastic-encapsulated stator 2, restricting the motor's displacement in the circumferential direction. This ensures that the motor's outer rotor 3 does not directly bear external circumferential forces, avoiding problems such as coaxiality deviation and rotor friction caused by outer rotor deformation, and ensuring that the core components of the motor are not damaged.

[0030] The bottom positioning cardboard 4 inside the carton 1 evenly distributes the pressure, while the middle positioning cardboard 4 and the pearl cotton positioning 5 support the motor and buffer vertical vibration; the motor output shaft passes through the output shaft hole to avoid vertical force, and the pearl cotton pad 6 covers the top surface of the outer rotor to buffer the top impact force and prevent the wave pad from failing due to excessive pressure, thus achieving all-round protection of the motor in the vertical direction.

[0031] The deepened locking groove of the supporting paper partition 7 enhances the connection strength of the partition strips and prevents the partition from loosening; the pearl cotton strip, pearl cotton positioning 5 and pearl cotton pad 6 between the inner wall of the carton 1 and the supporting paper partition 7 form a multi-level buffer structure that can absorb vibration and impact during transportation; the hidden placement of the lead wire and the avoidance design of the output shaft further reduce the risk of damage to the key components of the motor and ensure that the motor can maintain stable performance in complex transportation environments.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A packaging structure for a plastic-sealed external rotor motor, comprising a carton (1), positioning cardboard (4), pearl cotton positioning (5), pearl cotton pads (6), supporting paper partitions (7), and a receiving space for accommodating the finished motor (8), characterized in that: The positioning cardboard (4) is laid at the bottom and middle of the carton (1). The pearl cotton positioning (5) is installed above the middle positioning cardboard (4). The supporting paper partition (7) is set as a grid structure and is set above the pearl cotton positioning (5). The output shaft of the finished motor (8) passes through the output shaft hole of the pearl cotton positioning (5) and the middle positioning cardboard (4) downwards and extends into the grid of the supporting paper partition (7). The height of the supporting paper partition (7) is 5-15mm higher than the body of the finished motor (8). The pearl cotton pad (6) is placed on the top surface of the outer rotor of the finished motor (8). After the pearl cotton pad (6) is stacked, it is 2mm higher than the supporting paper partition (7).

2. The packaging structure of a plastic-encapsulated external rotor motor as described in claim 1, characterized in that: The positioning cardboard (4) is made of corrugated cardboard, and the diameter of the shaft hole on the positioning cardboard (4) is slightly larger than the diameter of the shaft of the finished motor (8). The positioning cardboard (4) at the bottom of the carton (1) completely covers the bottom surface of the carton (1).

3. The packaging structure of a plastic-encapsulated external rotor motor as described in claim 1, characterized in that: The pearl cotton is made of EPE pearl cotton material. The shaft hole on the pearl cotton positioning (5) is coaxially aligned with the shaft hole of the positioning cardboard (4), and the top surface of the pearl cotton positioning (5) is tightly attached to the bottom surface of the supporting paper partition (7).

4. The packaging structure of a plastic-encapsulated external rotor motor as described in claim 1, characterized in that: The supporting paper partition (7) is formed by the interlocking of longitudinal and transverse partitions to form a grid.

5. The packaging structure of a plastic-encapsulated external rotor motor as described in claim 1, characterized in that: The pearl cotton pad (6) is made of EPE pearl cotton, and the pearl cotton pad (6) completely covers the top surface of the outer rotor (3) of the finished motor (8). The edge of the pearl cotton pad (6) does not extend beyond the edge of the supporting paper partition (7).

6. The packaging structure of a plastic-encapsulated external rotor motor as described in claim 1, characterized in that: The lead wire of the finished motor (8) is folded and placed in the gap between the grid of the supporting paper partition (7) and the finished motor (8), and the height of the folded lead wire is not higher than the height of the finished motor (8) body. A buffer gap is provided between the inner wall of the carton (1) and the outer wall of the supporting paper partition (7), and the gap is filled with EPE pearl cotton strips.

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