Motor rear cover structure convenient for lead welding
By designing recessed mounting grooves and conductive lead wire grooves on the motor rear cover, combined with multiple lead wire grooves and positioning grooves, the problems of wire misalignment and poor contact during the lead wire welding process of traditional motor rear covers are solved, achieving efficient and reliable motor assembly and stable operation.
Patent Information
- Application Number
- CN202520155243.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Traditional motor back covers are prone to problems such as wire misalignment and poor contact during lead wire welding, resulting in low production efficiency and affecting product reliability.
Design a motor back cover structure that facilitates lead wire soldering, including a recessed mounting groove and a conductive lead wire groove to ensure that the circuit board is firmly embedded and accurately connected to the soldering parts. Multiple lead wire grooves and positioning grooves are set to optimize the wiring system. A hollow structure and spoke structure are adopted to reduce weight and improve heat dissipation performance.
It simplifies the lead wire soldering process, reduces the probability of wire misalignment and poor contact, improves assembly efficiency and product reliability, extends motor life, and adapts to stable operation under complex working conditions.
Smart Images
Figure CN223785847U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of electric machines, in particular to a motor rear cover structure facilitating lead welding. BACKGROUND
[0002] The motor rear cover is one of the key components of the motor, mainly serving to protect the internal elements and provide support. With the continuous expansion of the application range of the motor, its performance and reliability requirements are also continuously improved. In particular, in some high-precision and high-performance application scenarios, such as industrial automation equipment, precision instruments and the like, higher requirements are put forward for the design and manufacturing of the motor. The circuit board is arranged on the rear cover, and the traditional motor rear cover design often focuses on the structural strength and sealing performance, but there are many deficiencies in the lead welding, resulting in low production efficiency and affected product reliability. During the lead welding process, mispositioning of the circuit and poor contact and the like are prone to occur, which not only increases the assembly difficulty, but also may cause the product quality to decline.
[0003] Therefore, based on the above problems, the prior art needs to be improved. CONTENT OF THE UTILITY MODEL
[0004] The application aims to provide a motor rear cover structure facilitating lead welding.
[0005] The above technical purpose of the application is achieved by the following technical scheme: a motor rear cover structure facilitating lead welding, comprising a rear cover body, an installation groove for installing a circuit board is concavely arranged on the rear cover body, a lead groove is arranged on the rear cover body, the lead groove and the installation groove are in communication, and the lead groove is arranged corresponding to the welding position of the circuit board.
[0006] By adopting the above technical scheme, the installation groove concavely arranged on the rear cover body provides a dedicated and stable installation space for the circuit board, so that the circuit board can be stably embedded, displacement or damage caused by factors such as shaking and collision during the operation or assembly of the motor is avoided, and the relative position stability of the circuit board and the motor rear cover is ensured; the lead groove in communication precisely corresponds to the welding position of the circuit board, a channel is built for the internal lead of the motor, so that the lead can orderly and accurately reach the welding point, the lead welding process is greatly simplified, the probability of problems such as mispositioning of the circuit and poor contact is effectively reduced, the assembly efficiency is improved, and the overall reliability of the product is effectively enhanced.
[0007] Optionally, the lead groove is provided with a plurality of lead grooves.
[0008] By adopting the technical scheme, the wiring system of the motor is further optimized by arranging the plurality of lead grooves. The motor leads with different functions can be arranged in place, and each lead can be sequentially extended to the circuit board welding position along the corresponding lead groove, avoiding the situation that the plurality of leads are intertwined and disordered, facilitating the identification and operation of each lead by workers during assembly, reducing the risk of short circuit, open circuit and other electrical faults caused by lead disorder, providing a neat and efficient circuit layout basis for the construction of the complex circuit of the motor, effectively ensuring the stability and reliability of the electrical connection of the motor, and enabling the motor to adapt to more complex and diverse working requirements.
[0009] Optionally, the rear cover body is provided with a positioning groove for limiting the position of the circuit board.
[0010] By adopting the technical scheme, the positioning groove provides reliable guarantee for the accurate positioning of the circuit board on the rear cover body. It can give the circuit board a clear and unique placement position according to the contour and installation requirements of the circuit board, so that the circuit board can be quickly and accurately embedded in the positioning groove during installation, and the displacement of the circuit board caused by manual operation error or motor operation vibration is avoided. This not only ensures that the lead and the circuit board welding position are always accurately connected, and each welding operation can be efficiently and accurately completed, but also maintains the continuity and stability of the circuit connection during long-term operation of the motor, effectively reduces the problems of signal interruption and poor contact caused by loose connection, and greatly improves the reliability and durability of the overall operation of the motor.
[0011] Optionally, a clamping groove is recessed in the wall of the positioning groove.
[0012] By adopting the technical scheme, the clamping groove further enhances the fixing effect of the circuit board. When the circuit board is placed in the positioning groove, the corresponding clamping structure can be tightly matched with the clamping groove to form a stable clamping connection, which can more effectively prevent the circuit board from loosening or shifting due to external forces such as vibration and shaking during motor operation, and ensure that the circuit board is always in the accurate and predetermined position. The good connection state of the lead and the circuit board welding position is continuously ensured, which greatly reduces the possibility of electrical faults such as loose welding points and poor line contact caused by the change of the position of the circuit board, and further improves the stability and reliability of the motor under various working conditions.
[0013] Optionally, the bottom of the mounting groove is in a hollow structure, a bearing mounting seat is fixedly arranged at the center of the hollow area, the bearing mounting seat is provided with spokes in a radial outward manner, and one end of each spoke away from the bearing mounting seat is connected with the rear cover body.
[0014] By adopting the technical scheme, the hollow structure of the installation groove bottom reduces the overall weight of the rear cover body, reduces the load of the motor itself while meeting the basic performance requirements of the motor, and is beneficial to improve the energy efficiency and portability of the motor. The bearing mounting seat located at the center of the hollow area precisely positions the bearing, ensuring the concentricity and stability of the motor shaft during rotation, reducing vibration, noise and wear caused by bearing misalignment, and effectively prolonging the service life of the motor. The spokes arranged in a radial manner uniformly disperse the force received by the bearing mounting seat to the rear cover body, greatly enhancing the overall structural strength of the rear cover, enabling it to withstand all complex stresses generated during motor operation, and preventing deformation and damage of the rear cover. On the other hand, the gaps formed between the spokes create a natural ventilation and heat dissipation channel for the motor interior, facilitating rapid heat dissipation and preventing heat accumulation from causing thermal damage to the bearings and surrounding components, optimizing the performance of the motor in all directions and ensuring stable and efficient operation of the motor under harsh working conditions.
[0015] Optionally, the spokes are provided in multiple rows.
[0016] By adopting the technical scheme, the multiple rows of spokes can more finely and uniformly disperse the force received by the bearing mounting seat to various parts of the rear cover body, further enhancing the overall load-bearing capacity of the rear cover, effectively dealing with high-strength impact and vibration forces generated by the motor under complex working conditions such as high-speed operation and frequent start-stop, greatly reducing the risk of cracks, deformation or even damage to the rear cover due to excessive local stress, and ensuring the integrity and stability of the motor structure. The numerous spokes are distributed at intervals in the hollow area at the bottom of the installation groove, not only stably supporting the bearing mounting seat to ensure that the bearing is always in a precise installation position and maintain stable rotation of the motor shaft, but also increasing the number of spokes to make the ventilation and heat dissipation channels more fine and diverse, allowing hot air to be discharged more smoothly and quickly, and cold air to be replenished more efficiently, significantly improving the heat dissipation efficiency of the motor interior, creating a good thermal environment for reliable long-term operation of the motor, and effectively meeting the stringent requirements for heat dissipation of the motor in high-performance application scenarios.
[0017] Optionally, the multiple rows of spokes are uniformly and evenly spaced.
[0018] By adopting the technical scheme, the uniform distribution makes the force dispersion effect reach the best state, the load borne by each spoke tends to be balanced, the overstrain or premature failure of individual spokes caused by uneven stress is avoided, thereby continuously and stably providing high-strength support for the bearing mounting seat, guaranteeing the stability of the motor rotating shaft in the running process, reducing the generation of vibration and noise, and prolonging the service life of the motor. The uniformly spaced spokes construct a regular and smooth ventilation network in the hollow area of the bottom of the mounting groove, air can flow uniformly and smoothly along these regular channels, without local airflow congestion or ventilation dead angles, thereby comprehensively improving the heat dissipation performance of the motor, ensuring the timely dissipation of heat, effectively preventing problems such as bearing lubrication failure and component material performance degradation caused by local overheating, and laying a solid foundation for the stable and reliable operation of the motor in high-temperature and high-strength operating environments.
[0019] Optionally, the spoke and the bearing mounting seat are integrally formed.
[0020] By adopting the technical scheme, the integrally formed structure eliminates the connection part, avoids the hidden troubles such as gaps and looseness that may exist in traditional connection modes (such as welding and riveting), makes the overallity and stability of the whole structure stronger, ensures that there is no relative displacement between the spoke and the bearing mounting seat during the operation of the motor, always maintains a reliable force transmission path, provides stable and accurate support for the bearing, and guarantees the stable rotation of the motor rotating shaft. The integrally formed design reduces the manufacturing procedures and costs additionally increased due to the connection structure, improves the production efficiency, reduces the risk that the quality of the connection components is uneven and affects the quality of the whole structure, makes the product quality more stable and reliable, and is helpful to keep the motor rear cover structure at a high standard and consistency in mass production.
[0021] In summary, the present application at least has the following beneficial effects:
[0022] 1. The installation groove provides a stable installation space for the circuit board, guarantees the position stability, the conductive lead slot corresponds to the welding part of the circuit board, simplifies the lead welding process, reduces the probability of line problems, improves the assembly efficiency and product reliability, and is beneficial to the stable operation of the motor in high-precision and high-performance occasions.
[0023] 2. The hollow structure of the bottom of the installation groove reduces the weight of the rear cover, improves the operation energy efficiency and portability, the central bearing mounting seat guarantees the stability of the rotating shaft, reduces problems such as wear and tear, prolongs the service life of the motor, the spoke disperses the stress to enhance the strength of the rear cover, and also forms a ventilation and heat dissipation channel, thereby optimizing the performance of the motor. BRIEF DESCRIPTION OF DRAWINGS
[0024] Fig. 1 It is a structure diagram of a motor rear cover structure convenient for lead welding;
[0025] Fig. 2 is a schematic view of a motor rear cover structure facilitating lead soldering.
[0026] Reference signs
[0027] 1, rear cover body; 2, circuit board; 3, mounting groove; 4, lead groove; 5, soldering site; 6, positioning groove; 7, clamping groove; 8, bearing mounting seat; 9, spoke. DETAILED DESCRIPTION
[0028] The application will be further described in detail below with reference to the accompanying drawings.
[0029] Embodiment 1
[0030] In this embodiment, with reference to Figs. 1-2 A motor rear cover structure facilitating lead soldering includes a rear cover body 1, a mounting groove 3 for mounting a circuit board 2 is recessed in the rear cover body 1, a lead groove 4 is provided on the rear cover body 1, the lead groove 4 and the mounting groove 3 are in communication, and the lead groove 4 is arranged corresponding to a soldering site 5 of the circuit board 2. Through this design, the convenience and reliability of lead soldering can be significantly improved, and the operation time and cost on the production line can be reduced.
[0031] Specifically, the rear cover body 1 is made of metal material or high-strength plastic material. Selecting appropriate materials can ensure that the rear cover body 1 has sufficient strength and corrosion resistance, thereby prolonging the service life. The mounting groove 3 is located inside the rear cover body 1, and its shape can be customized according to the actual size of the circuit board 2, and common shapes include rectangle, circle, etc. In order to enhance stability, reinforcing ribs or protruding structures can be added to the edges of the mounting groove 3 to prevent displacement of the circuit board 2 in a vibrating environment.
[0032] The rear cover body 1 is provided with a lead groove 4, and the lead groove 4 and the mounting groove 3 are in communication, which is used to guide the lead from the outside to the soldering site 5 of the circuit board 2 in the mounting groove 3. The width and depth of the lead groove 4 need to be determined according to the actual diameter of the lead, and in general, the width of the lead groove 4 is slightly larger than the diameter of the lead, so that the lead can be smoothly inserted without being damaged. In addition, the surface of the lead groove 4 can be treated with an anti-oxidation coating to avoid poor contact of the lead due to oxidation after long-term use.
[0033] The implementation principle of this embodiment is that by providing a dedicated mounting groove 3 and a lead groove 4 on the rear cover body 1, the circuit board 2 can be accurately placed at the predetermined position, and the lead can be directly introduced from the outside to the soldering site, greatly simplifying the soldering process. This way not only improves production efficiency, but also reduces quality problems caused by human factors, improving the reliability and consistency of the product.
[0034] Embodiment 2
[0035] The difference between this embodiment and the above embodiments is that multiple lead grooves 4 are provided. By providing multiple lead grooves 4, different types of circuit board 2 layout requirements can be met, and when there are multiple soldering points on a single circuit board 2, the lead path can be arranged more flexibly to avoid mutual interference.
[0036] Specifically, multiple lead grooves 4 can be evenly distributed along the circumference of the rear cover body 1, or asymmetrically arranged according to the specific layout of the circuit board 2. The length and direction of each lead groove 4 also need to be adjusted according to the actual situation to ensure that the lead can be smoothly connected to the soldering point from any angle. For some complex circuit board 2 design, even cross-connection can be set between the lead grooves 4 to form a three-dimensional lead network, further improving the flexibility and reliability of wiring.
[0037] The implementation principle of this embodiment is that by providing multiple lead grooves 4, not only can the wiring requirements of complex circuit boards 2 be met, but also mutual interference between leads can be effectively avoided, improving soldering quality and production efficiency. Especially in large-scale production and automated assembly lines, this multi-lead groove 4 design can significantly reduce the error rate and improve the yield.
[0038] Embodiment 3
[0039] The difference between this embodiment and the above embodiments is that the rear cover body 1 is provided with a positioning groove 6 for limiting the position of the circuit board 2. By providing the positioning groove 6, it can be ensured that the circuit board 2 is always in the correct position during installation, avoiding soldering failure due to position deviation.
[0040] Specifically, the positioning groove 6 can be one or more, and its shape and size should match the shape of the circuit board 2. To further enhance the positioning effect, a clamping groove 7 can be recessed in the side wall of the positioning groove 6. The function of the clamping groove 7 is to cooperate with the protruding part on the circuit board 2 to form a locking mechanism, so that the circuit board 2 will not easily move when subjected to external force. The cross-sectional shape of the clamping groove 7 can be square, circular or triangular, etc., depending on the shape of the protruding part on the circuit board 2.
[0041] The implementation principle of this embodiment is that by providing the positioning groove 6 and the clamping groove 7, the circuit board 2 can be effectively fixed so that it remains stable during soldering, avoiding displacement caused by vibration or misoperation. This design not only improves the quality of soldering, but also shortens the assembly time and reduces costs.
[0042] Embodiment 4
[0043] The difference between this embodiment and the above-mentioned embodiments is that the bottom of the mounting groove 3 is in a hollow structure, and a bearing mounting seat 8 is fixedly arranged at the center of the hollow area. The bearing mounting seat 8 is provided with spokes 9 radially outward, and the ends of the spokes 9 away from the bearing mounting seat 8 are connected with the rear cover body 1. Such design can provide better support for the motor rotor, and also help heat dissipation.
[0044] Specifically, the bottom of the hollow mounting groove 3 can be designed as a honeycomb or mesh structure, which can not only reduce weight but also ensure sufficient rigidity. The bearing mounting seat 8 is usually cylindrical or annular, and its material can be selected from alloy steel or ceramic materials with high wear resistance. The center hole diameter of the bearing mounting seat 8 should match the bearing specifications of the motor rotor to ensure good concentricity and smooth rotation.
[0045] The number and spacing of the spokes 9 can be adjusted according to the power and load of the motor. Generally speaking, the more spokes 9, the more stable the support, but the manufacturing cost will also increase. Therefore, a balance between stability and economy needs to be found. The common number of spokes 9 is 3-6, and the cross-sectional shape of each spoke 9 can be flat, circular or oval, depending on the stress situation and aesthetic requirements.
[0046] In order to further optimize the heat dissipation performance, heat dissipation fins or holes can be arranged between the spokes 9, which can increase the surface area and speed up the heat conduction. In addition, a layer of efficient heat transfer coating such as graphene or nano-silver powder can be coated on the outer surface of the rear cover body 1 to enhance the heat dissipation effect.
[0047] The implementation principle of this embodiment is:
[0048] By setting a hollow structure at the bottom of the mounting groove 3 and a bearing mounting seat 8 with spokes 9, stable support can be provided for the motor rotor, and heat dissipation performance can be improved. This design not only improves the working efficiency of the motor, but also helps to prolong the service life, especially suitable for application in high-load and high-temperature environments.
[0049] Embodiment 5
[0050] The difference between this embodiment and the above-mentioned embodiments is that the spokes 9 are provided in multiple numbers, and the multiple spokes 9 are uniformly spaced. This can maximize the dispersion of the load, ensure that each part of the motor is balanced during operation, and reduce vibration and noise.
[0051] Specifically, the number of multiple spokes 9 can be adjusted according to the power and working conditions of the motor. Generally, it is recommended to set 3-8 spokes 9, and the length and width of each spoke 9 also need to be set according to the specific situation. In order to ensure uniform spacing, precise numerical control machine tools or mold forming processes can be used to ensure the consistent distance between each spoke 9.
[0052] The spoke 9 and the bearing mount 8 can be designed as a single unit, meaning they are formed in one piece through casting or injection molding. This can improve the overall structure and durability. Alternatively, fasteners such as bolts or rivets can be used between the two, which may increase the assembly steps but make maintenance and replacement easier.
[0053] To further optimize the mechanical properties, reinforcing ribs can be added to the middle of the spoke 9, similar to the beam structure on an airplane wing, to improve bending resistance and load capacity. In addition, a layer of shock-absorbing material such as rubber or polyurethane foam can be coated on the surface of the spoke 9 to absorb high-frequency vibrations and reduce noise transmission.
[0054] The principle of the embodiment is to set up multiple evenly spaced spokes 9 to effectively disperse the load generated during motor operation, reduce vibration and noise, and improve the stability and reliability of the system. This design is particularly suitable for applications sensitive to vibration, such as precision instruments and medical equipment motors.
[0055] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made in terms of structure, shape, and principle should be covered within the protection scope of the present application.
Claims
1. A motor rear cover structure that facilitates lead wire soldering, characterized in that, Includes a back cover body (1), the back cover body (1) is recessed and has a mounting groove (3) for mounting a circuit board (2), the back cover body (1) is provided with a lead wire groove (4), the lead wire groove (4) and the mounting groove (3) are connected, and the lead wire groove (4) is provided corresponding to the soldering part (5) of the circuit board (2).
2. The motor rear cover structure for easy lead wire soldering according to claim 1, characterized in that, The lead wire groove (4) is provided in multiple places.
3. The motor rear cover structure for easy lead wire soldering according to claim 1, characterized in that, The rear cover body (1) is provided with a positioning groove (6) for defining the position of the circuit board (2).
4. The motor rear cover structure for easy lead wire soldering according to claim 3, characterized in that, The positioning groove (6) has a snap-fit groove (7) recessed in the groove wall.
5. The motor rear cover structure for easy lead wire soldering according to claim 1, characterized in that, The bottom of the mounting groove (3) is hollow, and a bearing mounting seat (8) is fixedly installed in the center of the hollow area. Spokes (9) are arranged radially outward from the bearing mounting seat (8), and the end of the spokes (9) away from the bearing mounting seat (8) is connected to the rear cover body (1).
6. The motor rear cover structure for easy lead wire soldering according to claim 5, characterized in that, The spokes (9) are provided with multiple spokes.
7. The motor rear cover structure for easy lead wire soldering according to claim 6, characterized in that, The spokes (9) are evenly spaced.
8. The motor rear cover structure for easy lead wire soldering according to claim 5, characterized in that, The spokes (9) and the bearing mounting base (8) are integrally formed.