Motor front cover mounting structure

Abstract

The utility model relates to the technical field of motor manufacturing, in particular to a motor front cover mounting structure. The structure comprises a front cover and a shell, a mounting groove is formed in the front cover, a mounting step is arranged on the shell, and positioning and connection of the front cover and the shell are achieved through matching of the mounting groove and the mounting step; a plurality of uniformly spaced through holes are formed in the mounting step in a hollow manner, and a corresponding clamping piece is arranged in the mounting groove. In addition, the front cover can be made of aluminum or plastic materials, a first guide slope is arranged at the end, away from the shell, of the installation step, and a second guide slope is correspondingly arranged at a notch of the installation groove. The effects of simplifying the assembly steps, improving the assembly precision and stability and reducing the production cost are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of motor manufacturing, in particular to a motor front cover mounting structure. BACKGROUND

[0002] In the field of motor manufacturing, the mounting structure of the motor front cover and the shell has been a key factor affecting the performance and overall quality of the motor. With the continuous expansion of motor application scenarios, higher and higher requirements are put forward for the motor front cover mounting structure. Not only the stability and reliability of the structure need to be ensured, but also the lightweight, high air tightness, and efficient production and assembly efficiency and other performances need to be considered.

[0003] In the prior art, the motor front cover and the shell are connected by simple assembly methods such as bolt connection and buckle connection. Although this connection method can realize the assembly of the front cover and the shell to a certain extent, when facing high-frequency vibration, large torque change and complex mechanical environment, the connection part is prone to looseness. The looseness will cause the relative displacement between the front cover and the shell, thereby damaging the stability of the overall structure of the motor, causing the internal parts of the motor to be subjected to additional impact and wear, and reducing the service life of the motor. Moreover, these connection methods often require additional connection parts such as bolts, nuts, buckles, etc., which not only increase the number of parts and assembly procedures, reduce the production efficiency, but also increase the overall weight of the motor to a certain extent, which is not conducive to the lightweight design of the motor.

[0004] Therefore, based on the above problems, the prior art needs to be improved. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide a motor front cover mounting structure.

[0006] The above technical purpose of the application is realized by the following technical scheme: a motor front cover mounting structure, comprising a front cover and a shell, the front cover is provided with a mounting groove, the shell is provided with a mounting step, the mounting groove and the mounting step are matched to realize the positioning and connection of the front cover and the shell, and the mounting step is hollowly provided with a through hole.

[0007] By adopting the above technical scheme, the cooperation of the installation groove and the installation step realizes the accurate positioning and connection of the front cover and the shell, ensures the accurate relative position of the two in the installation process, and lays a foundation for subsequent stable combination. The through hole hollowly arranged on the installation step plays a key role in the injection molding process, so that the plastic material can be smoothly filled therein, effectively enhancing the connection strength between the front cover and the shell, avoiding problems such as loosening during motor operation due to loose connection. At the same time, this structure design optimizes the stress distribution, avoids excessive stress concentration in local areas, greatly improves the overall strength and durability of the front cover and shell connection, so that it can better cope with various complex working conditions in motor operation. In addition, the existence of the through hole also helps to exhaust air during injection molding, reduces the generation of defects such as air bubbles, and further ensures product quality, thereby improving the stability and reliability of the motor front cover mounting structure, prolonging the service life of the motor.

[0008] Optionally, the through hole is provided with a plurality of through holes.

[0009] By adopting the above technical scheme, the existence of multiple through holes significantly increases the number of connection points between the front cover and the shell, making the connection between the two more tight and stable, and enhancing the anti-separation ability of the overall structure. When facing various complex stresses generated during motor operation, such as strong vibration, frequent torque change and the like, these dispersed connection points can more effectively disperse stress and prevent stress from accumulating excessively in local areas, thereby greatly reducing the risk of structural damage caused by stress concentration, effectively guaranteeing the long-term stability and reliability of the motor front cover mounting structure. At the same time, multiple through holes provide more flow channels and filling space for plastic material during injection molding, which helps to further improve the quality of injection molding, making the combination between the front cover and the shell more uniform and dense, reducing defects that may be caused by uneven injection molding, thereby further optimizing the performance of the motor front cover mounting structure, improving the overall quality and service life of the motor, better meeting the working requirements of the motor under different working conditions, and enhancing the adaptability and advantages of the motor in related fields of application.

[0010] Optionally, the plurality of through holes are uniformly spaced on the installation step.

[0011] By adopting the above technical scheme, the uniform and spaced layout ensures that the plastic material can be more evenly distributed in the connecting area of the front cover and the shell during injection molding, avoiding the problem of uneven structural strength caused by excessive or insufficient local material filling, making the strength of the entire connecting part more consistent and reliable. The uniform stress distribution characteristics ensure that the motor can effectively disperse the stress through the uniformly distributed through holes and the surrounding filling material regardless of the direction of the acting force during operation, thereby greatly reducing the occurrence of stress concentration phenomenon, greatly improving the ability of the front cover and shell connecting structure to cope with complex working conditions, significantly enhancing its durability and stability, reducing the risk of damage such as cracking and breaking caused by long-term stress, and effectively ensuring the safety and reliability of the motor during long-term use. At the same time, the uniformly spaced through holes also help to improve the process controllability during production, facilitating more stable and standardized operation during injection molding, improving the consistency of product quality, reducing the scrap rate, and thereby improving production efficiency, providing strong support for large-scale and efficient production of motors, and improving the comprehensive performance and market competitiveness of the motor front cover mounting structure from multiple dimensions.

[0012] Optionally, the front cover is made of aluminum material.

[0013] By adopting the above technical scheme, the aluminum material itself has excellent heat conduction performance, which can efficiently conduct the heat generated during motor operation, helping to maintain the uniformity and stability of the internal temperature of the motor, avoiding damage to electrical elements and windings inside the motor caused by local overheating, thereby improving the working reliability and service life of the motor. At the same time, the relatively light weight characteristics of aluminum material help to achieve the lightweight design goal of the motor as a whole, which can effectively reduce the overall load of the equipment and improve energy utilization efficiency in application scenarios with strict weight requirements such as aerospace, electric vehicles, etc., and to some extent, help to improve the dynamic performance of the equipment. In addition, aluminum material has good plasticity and processability, which facilitates the manufacture of complex-shaped front covers through various processing techniques to meet the structural and functional requirements of different motor designs, and ensures high precision and surface quality during processing, which is beneficial to improving the fitting precision between the front cover and the shell, thereby improving the overall stability and sealing performance of the motor front cover mounting structure, ensuring stable operation of the motor under various working conditions, and providing strong support for the expansion of the motor in high-performance application fields.

[0014] Optionally, the front cover is made of plastic material.

[0015] By adopting the above technical scheme, the density of the plastic material is relatively low, compared with the traditional metal material (such as aluminum, etc.), the weight of the front cover can be greatly reduced, thereby effectively reducing the overall weight of the motor, meeting the urgent needs of modern motors in terms of lightweight, especially suitable for weight-sensitive application scenarios such as portable devices, drones, etc., which helps to improve the portability and energy utilization efficiency of the device. The plastic material has good forming performance, and the front cover structure with complex shape and high precision can be easily manufactured through injection molding process, which not only meets the diversified design requirements, but also reduces the production cost and production cycle to some extent, and improves the production efficiency. The plastic material itself has certain elasticity and buffering performance, which can effectively absorb and alleviate the force generated by vibration, impact, etc. during the operation of the motor, reduce the damage to the internal parts of the motor, and further improve the stability and reliability of the motor operation. The plastic material also has good insulation performance, which can effectively prevent electrical conduction between the electrical elements inside the motor and the front cover, avoid short circuit and other electrical faults, provide reliable protection for the safe operation of the motor, and help to improve the working performance and overall quality of the motor under various complex working conditions.

[0016] Optionally, the mounting step is provided with a first guide inclined surface away from one end of the shell.

[0017] By adopting the above technical scheme, in the installation process, the first guide inclined surface plays a key role in guiding the front cover to be accurately positioned. The inclined surface can make the front cover more easily preliminarily dock with the mounting step, effectively reducing the difficulty of cooperation between the front cover and the mounting step, reducing the risk of installation jamming or damage caused by inaccurate alignment, greatly improving the success rate and efficiency of installation. The guide inclined surface design helps to automatically correct the position of the front cover during assembly, ensuring that the mounting groove and the mounting step between the front cover and the shell can be more accurately matched, thereby forming a more compact and stable connection structure. The compact and stable connection structure can better withstand various forces generated during the operation of the motor, including vibration, torque, etc., reducing the risk of motor failure caused by loose connection, effectively prolonging the service life of the motor, improving the stability of the overall performance of the motor, and thereby enhancing the competitiveness of the motor in the market, so that it can operate more reliably in various application scenarios.

[0018] Optionally, a second guide inclined surface is arranged at the mounting groove opening corresponding to the first guide inclined surface.

[0019] By adopting the technical scheme, in the installation operation, the second guide inclined surface cooperates with the first guide inclined surface, so that the front cover can be more smoothly and accurately docked with the shell along the predetermined path during installation. Not only does it further reduce the installation difficulty, greatly improves the convenience and efficiency of installation, and reduces the possibility of installation failure caused by human operation error, but also ensures that the connection between the front cover and the shell is more closely and uniformly, thereby improving the stability and reliability of the connection. The closely stable connection effectively avoids abnormal vibration, noise and potential safety hazards caused by the relative displacement between the front cover and the shell during the operation of the motor, ensures the normal operating environment of the internal parts of the motor, helps to prolong the service life of the motor, improves the working performance and overall quality of the motor, and enables the motor to operate stably and reliably under various complex working conditions, thereby enhancing the competitiveness of the motor in the market, and is especially suitable for application scenarios with high requirements for installation precision and structural stability.

[0020] Optionally, the mounting groove is provided with a clamping piece corresponding to the through hole.

[0021] By adopting the technical scheme, in the installation link, the clamping piece is accurately embedded in the through hole, a stable mechanical interlocking system is constructed, external force interference such as vibration and torque change during motor operation is effectively resisted, relative displacement or separation of the front cover and the shell is strictly prevented, and the reliability of the connection is greatly strengthened, thereby ensuring the safety of the motor operation. At the same time, this close connection plays an important role in maintaining the sealing of the motor, can effectively block the invasion of dust, moisture, corrosive gas and the like, builds a protective barrier for the electrical and mechanical parts inside the motor, prolongs the service life of the motor, and reduces the maintenance cost. Even if the clamping piece is embedded in the through hole, the through hole still plays a key role in the subsequent glue injection process. When injecting glue, the glue can flow smoothly along the small gap between the clamping piece and the through hole, further filling and reinforcing the connection part of the two, so that the combination of the front cover and the shell is more dense and gapless. On the one hand, this optimizes the stress distribution, makes the stress evenly distributed through the filled structure, avoids the risk of stress concentration, and improves the durability of the connection structure; after the glue solidifies, it is like an additional fixation for the connection part, cooperates with the clamping piece to enhance the overall stability, and ensures that the motor always operates stably under the aforementioned complex working conditions.

[0022] In summary, the present application at least has the following beneficial effects:

[0023] 1. The positioning and connection are realized by the cooperation of the front cover mounting groove and the shell mounting step, and the through holes (several can be set and are uniformly spaced) set on the mounting step are filled with plastic during injection molding, forming a structure that enhances the connection. At the same time, the clamping piece corresponding to the through hole in the mounting groove cooperates with the through hole to form mechanical interlocking, further stabilizing the connection and effectively resisting the forces such as vibration and torque during motor operation, greatly reducing the risk of damage to the connection part due to stress concentration, ensuring the long-term stability and high strength of the connection between the front cover and the shell, and making the overall structure of the motor more reliable.

[0024] 2. The front cover can be made of aluminum or plastic. Aluminum material is beneficial for heat conduction and processing and can ensure the fitting accuracy. Plastic material has good formability, light weight, and insulation, etc. Both of them can meet different needs and help the overall lightweight design of the motor. Moreover, the plastic front cover can effectively shorten the production cycle, improve the production efficiency, and enhance the competitiveness of motor products in the market through efficient processes such as injection molding combined with reasonable structural design (such as through holes that facilitate injection molding). BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural diagram of a motor front cover mounting structure.

[0026] Figure 2 It is an exploded view of a motor front cover mounting structure.

[0027] Figure 3 It is a position diagram of the clamping piece.

[0028] REFERENCE NUMERALS

[0029] 1, front cover; 2, shell; 3, mounting groove; 4, mounting step; 5, through hole; 6, clamping piece. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] In this embodiment, refer to Figures 1-2 A motor front cover mounting structure includes a front cover 1 and a shell 2. The front cover 1 is provided with a mounting groove 3, and the shell 2 is provided with a mounting step 4. The front cover 1 and the shell 2 are positioned and connected by the cooperation of the mounting groove 3 and the mounting step 4. The mounting step 4 is hollow and provided with a through hole 5. Specifically, this design optimizes the connection method of the front cover 1 and the shell 2, realizes higher airtightness and better stability, simplifies the production and assembly process, and improves the installation efficiency.

[0033] Specifically, the front cover 1 is made of plastic material, such as polypropylene (PP). This material has good chemical corrosion resistance and mechanical strength, can effectively resist the influence of the external environment, at the same time significantly reduce the overall weight of the motor, is conducive to lightweight design. In the alternative, other high-performance engineering plastics, such as polycarbonate (PC) or ABS resin, can also be selected to meet the needs of different application scenarios.

[0034] The shell 2 can be made of various materials, such as aluminum alloy, stainless steel, or cast iron. The choice of these materials depends on the working environment and expected service life of the motor. For example, in situations where higher strength and wear resistance are required, aluminum alloy or stainless steel can be chosen; while in situations where cost control is emphasized, cast iron can be chosen. Regardless of the material, it can be combined with the front cover 1 through the injection molding process to form an integrated structure.

[0035] The mounting groove 3 is provided on the inner side edge of the front cover 1, and its shape and size are matched with the mounting step 4 to ensure that the two are tightly fitted. In order to further improve the stability of the connection, a protruding part can be provided at the bottom of the mounting groove 3, which cooperates with the recessed part on the mounting step 4 to form a multiple locking mechanism. In addition, reinforcing ribs can also be provided on both sides of the mounting groove 3 to increase the rigidity of the structure and prevent loosening caused by vibration.

[0036] The mounting step 4 is located at the front end of the shell 2, and its height and width are designed according to actual needs. In order to improve the strength of the connection part, the mounting step 4 is hollow and provided with a plurality of through holes 5, which not only helps to reduce material usage and reduce overall weight, but also allows the plastic material to penetrate better during the injection molding process, forming a more secure connection. Preferably, the plurality of through holes 5 are evenly spaced on the mounting step 4 to ensure that the stress distribution at each point is balanced and local overload is avoided.

[0037] The implementation principle of the present embodiment is that by precisely matching the mounting groove 3 and the mounting step 4 of the front cover 1 and the shell 2, a stable and reliable connection structure is formed. In particular, the front cover 1 made of plastic material not only significantly reduces the weight of the motor, but also has excellent sealing performance, effectively preventing external moisture and impurities from entering the interior of the motor, prolonging the service life of the motor. In addition, the injection molding integrated technology makes the production process simpler and more efficient, without the need for additional assembly steps, greatly improving production efficiency.

[0038] Embodiment 2

[0039] The difference between this embodiment and the above embodiments is that the front cover 1 is made of aluminum material. Although aluminum material is relatively heavy, it has excellent thermal conductivity and mechanical strength, and is particularly suitable for use in high-power motors or situations that require good heat dissipation performance. In this case, the heat dissipation effect can be enhanced by arranging heat dissipation fins on the surface of the front cover 1, while maintaining good air tightness.

[0040] Specifically, the thickness and shape of the front cover 1 can be adjusted according to actual needs to balance weight and heat dissipation performance. For example, for motors that require high heat dissipation performance, the thickness of the front cover 1 can be appropriately increased, and more heat dissipation fins can be arranged on its surface. Conversely, if the requirement for lightness is high, the thickness of the front cover 1 can be appropriately reduced, and the number of heat dissipation fins can be reduced.

[0041] The design of the mounting groove 3 is similar to that of Embodiment 1, and is also arranged on the inner side edge of the front cover 1, tightly fitted with the corresponding mounting step 4. In order to further improve the reliability of the connection, a guide slope can be arranged at the entrance of the mounting groove 3 to facilitate the quick and accurate installation of the front cover 1. In addition, a elastic buckle can also be arranged at the bottom of the mounting groove 3 to ensure that the front cover 1 does not easily fall off after installation.

[0042] The height and width of the mounting step 4 are designed according to the size of the front cover 1 to ensure that the fit of the two is optimal. In order to enhance the strength of the connection part, a plurality of through holes 5 are hollowly arranged on the mounting step 4, which have the same effect as those in Embodiment 1, i.e. allowing the plastic material to penetrate better during injection molding, forming a more secure connection. Especially when using an aluminum alloy front cover 1, these through holes 5 also help to release internal pressure and prevent deformation due to temperature changes.

[0043] The implementation principle of this embodiment is to realize a high-strength and high-reliability connection structure by precisely fitting the aluminum material front cover 1 with the shell 2 through the mounting groove 3 and the mounting step 4. Especially using an aluminum material front cover 1 not only has good heat dissipation performance, but also effectively prevents the motor from overheating, prolonging the service life of the motor. In addition, the injection molding technology still makes the production process simple and efficient, improving production efficiency.

[0044] Embodiment 3

[0045] The difference between this embodiment and the above embodiments is that the end of the mounting step 4 away from the shell 2 is provided with a first guide slope, and the slot of the mounting groove 3 is provided with a second guide slope corresponding to the first guide slope. This design guides the front cover 1 to smoothly embed into the mounting step 4, reducing the resistance in the installation process and improving the installation speed and accuracy.

[0046] Specifically, the angle of the first guide slope can be adjusted according to actual conditions, and it is generally recommended to be set between 10° and 30°. Such an inclination angle can not only effectively guide the front cover 1 into the installation groove 3, but also ensure that the front cover 1 has enough support force after installation to prevent loosening caused by vibration. The second guide slope is provided at the entrance of the installation groove 3, and its angle corresponds to that of the first guide slope to ensure smooth docking during installation.

[0047] Referring to Figure 3 The material of the front cover 1 can still be plastic or aluminum, and the specific choice depends on the actual application scenario of the motor. Regardless of the material, it can be combined with the shell 2 through an injection molding process to form an integrated structure. To further improve the reliability of the connection, multiple clamping pieces 6 can be provided at the bottom of the installation groove 3, which cooperate with the through holes 5 on the installation step 4 to form a multi-point locking mechanism, ensuring the tight connection of the front cover 1 and the shell 2.

[0048] The height and width of the installation step 4 are designed according to the size of the front cover 1 to ensure that the fit is in the best state. To enhance the strength of the connection part, the installation step 4 is hollow and provided with a plurality of through holes 5, which have the same effect as the previous embodiment, i.e., allowing the plastic material to penetrate better during injection molding, forming a more secure connection. Especially when using the design of the first guide slope and the second guide slope, these through holes 5 also help to reduce air resistance during installation, improving installation efficiency.

[0049] The implementation principle of this embodiment is: by introducing the design of the first guide slope and the second guide slope, the installation experience of the front cover 1 and the shell 2 is greatly improved. The presence of these two guide slopes allows the front cover 1 to be smoothly inserted into the installation step 4 with less force, reducing friction and resistance during installation, improving installation speed and accuracy. At the same time, the multi-point locking mechanism and the injection molding integrated technology work together to ensure the long-term stable connection of the front cover 1 and the shell 2, improving the overall performance and service life of the motor.

[0050] Embodiment 4

[0051] The difference between this embodiment and the above-mentioned embodiments is that the clamping pieces 6 are provided in the installation groove 3 corresponding to the through holes 5. The design purpose of these clamping pieces 6 is to provide additional locking force when the front cover 1 is connected to the shell 2, ensuring the stability of the connection. The clamping pieces 6 can have different forms, such as spring sheets, spring pins or hooks, and the specific choice depends on actual needs and use environment.

[0052] Specifically, the clamping pieces 6 can be one or more, distributed at different positions in the mounting groove 3. For example, one clamping piece 6 can be arranged at each of the four corners of the mounting groove 3, or a plurality of clamping pieces 6 can be densely arranged in the middle region. The shape and size of these clamping pieces 6 can be customized according to the size and position of the through hole 5, to ensure that they can be accurately inserted into the through hole 5 and form a stable connection.

[0053] The material of the front cover 1 can still be plastic or aluminum, and the specific choice depends on the actual application scenario of the motor. Regardless of the material, it can be combined with the shell 2 through the injection molding process to form an integrated structure. In order to further improve the reliability of the connection, barbs or protrusions can be provided at the end of the clamping piece 6, which can play a role in preventing loosening caused by vibration and the like after the front cover 1 is installed.

[0054] The height and width of the mounting step 4 are designed according to the size of the front cover 1 to ensure that the fit is in the best state. In order to enhance the strength of the connection part, a plurality of through holes 5 are hollowly arranged on the mounting step 4, which have the same effect as the previous embodiment, that is, the plastic material penetrates better during the injection molding process, forming a more secure connection. Especially in the design using clamping pieces 6, these through holes 5 also help to disperse stress and improve the impact resistance of the overall structure.

[0055] The implementation principle of this embodiment is that by arranging clamping pieces 6 in the mounting groove 3, the stability of the connection between the front cover 1 and the shell 2 is greatly improved. These clamping pieces 6 can be accurately inserted into the through hole 5 when the front cover 1 is installed, forming a multi-point locking mechanism to ensure the close combination of the front cover 1 and the shell 2. At the same time, the injection molding integrated molding technology and the multi-point locking mechanism work together to make the entire connection structure not only strong but also reliable, effectively preventing loosening caused by factors such as vibration, and improving the overall performance and service life of the motor.

[0056] Embodiment 5

[0057] The difference between this embodiment and the above-mentioned embodiments is that the through hole 5 is provided with a plurality of through holes 5, and these through holes 5 are uniformly and spacedly arranged on the mounting step 4. This design not only helps to reduce material usage and reduce overall weight, but also allows the plastic material to penetrate better during the injection molding process, forming a more secure connection. In addition, the uniformly distributed through holes 5 can effectively disperse stress and improve the impact resistance and fatigue life of the connection part.

[0058] Specifically, the number and spacing of the through holes 5 can be adjusted according to actual needs. For example, for large motors or occasions that need to bear larger loads, more through holes 5 can be provided to ensure the strength and stability of the connection part; for small motors or occasions of lightweight design, the number of through holes 5 can be appropriately reduced to reduce the overall weight. The diameter and depth of each through hole 5 also need to be optimized according to the flowability of the plastic material to ensure that it can be fully filled during injection molding.

[0059] The material of the front cover 1 can still be plastic or aluminum, and the specific choice depends on the actual application scenario of the motor. Regardless of the material, it can be combined with the shell 2 through the injection molding process to form an integrated structure. In order to further improve the reliability of the connection, reinforcing ribs can be provided around the through holes 5, which can enhance the rigidity of the connection part and prevent loosening caused by vibration.

[0060] The height and width of the mounting step 4 are designed according to the size of the front cover 1 to ensure that the fit is optimal. In order to enhance the strength of the connection part, the mounting step 4 is hollow and provided with a plurality of through holes 5, which have the same effect as the foregoing embodiments, that is, the plastic material penetrates better during injection molding, forming a more secure connection. Especially when using uniformly distributed through holes 5 design, these through holes 5 can also effectively disperse stress, improve the impact resistance and fatigue life of the overall structure.

[0061] The implementation principle of this embodiment is to uniformly and spacedly arrange a plurality of through holes 5 on the mounting step 4, achieving the dual goals of lightweight and high strength. These through holes 5 not only help to reduce material usage and reduce overall weight, but also allow the plastic material to penetrate better during injection molding, forming a more secure connection. In addition, the uniformly distributed through holes 5 can also effectively disperse stress, improve the impact resistance and fatigue life of the connection part, and ensure the stability and reliability of the motor during long-term operation.

[0062] The embodiments of the specific implementation manner are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electric motor front cover mounting structure characterized by comprising: The front cover (1) is positioned and connected with the shell (2) through the cooperation of the mounting groove (3) and the mounting step (4).

2. The motor front cover mounting structure according to claim 1, characterized by The through hole (5) is provided with a plurality of first guide inclined surfaces.

3. The motor front cover mounting structure according to claim 2, characterized by The plurality of through holes (5) are uniformly and spacedly arranged on the mounting step (4).

4. The motor front cover mounting structure according to claim 1, characterized by The front cover (1) is made of aluminum material.

5. The motor front cover mounting structure according to claim 1, characterized by The front cover (1) is made of plastic material.

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