End cover with reticulate pattern structure

Through the combination of mesh structure end cap design and protective components, the problem of stress concentration of motor end caps is solved, material saving and impact resistance are improved, and the motor is lightweight and energy-saving.

CN223093577UActive Publication Date: 2025-07-11WUXI LANBAO TECH CO LTD
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Patent Information

Application Number
CN202421601557.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-08
Publication Date
2025-07-11
Estimated Expiration
2034-07-08

AI Technical Summary

Technical Problem

Existing motor end caps are prone to stress concentration during die-casting, resulting in an increased risk of local damage and a high material consumption, which affects the motor's lightweight and energy-saving design.

Method used

The mesh structure end cap design is designed, combined with fixing grooves, connecting bolts and protective components, and the impact force is dispersed through the cushioning spring and rubber protective plate, reducing material consumption and enhancing structural strength.

Benefits of technology

It effectively reduces stress concentration, reduces material consumption and weight, improves the lightweight and energy-saving performance of the motor, and enhances the impact resistance of the end cap.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of motor manufacturing, and particularly relates to an end cover with a reticulate pattern structure, which comprises an end cover body. A fixing groove is formed in the edge of one end of the end cover body in a surrounding mode. A motor shaft hole is formed in the other end of the end cover body; a plurality of reticulated grooves are formed in the inner side surface of one end, close to the motor shaft hole, of the end cover body; the reticulate pattern grooves are annularly arranged in a reticulate shape; a plurality of reticulated grooves are formed in the inner side surface of one end, close to the motor shaft hole, of the end cover body; the threads on the fixing grooves are connected with connecting bolts; the number of the connecting bolts is four. The inner side face of the end cover body is of the reticulate pattern structure, material consumption is reduced on the premise that product strength is guaranteed, a material runner is improved, pressure casting stress concentration is reduced, meanwhile, the design of the reticulate pattern structure possibly facilitates reduction of the weight of the whole end cover, reduction of the overall mass of a motor is facilitated due to reduction of the weight of the end cover, and cost is reduced. Therefore, the energy consumption of the motor in the operation process is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to an end cover with a mesh structure. Background Art

[0002] The motor end cover is the cover of the motor casing, generally divided into a front cover and a rear cover, and is mainly used to fix and support the motor shaft. Its main function is to determine the spatial position of the rotor shaft, cooperate with different forms of bearings, and be connected to the outer casing of the fixed motor stator through the end cover to ensure the gap between the rotor and the stator.

[0003] The motor end cover in the prior art mainly adopts triangular ribs for strength support, and this type of motor end cover is prone to stress concentration during die-casting, which will cause stress concentration in certain local areas, causing certain parts to bear excessive stress when subjected to force, thereby increasing the risk of damage or failure of the end cover in these parts. At the same time, using triangular ribs for strength design may increase the volume and weight of the end cover, thereby increasing material consumption, which not only increases manufacturing costs, but may also be detrimental to the lightweight and energy-saving design of the motor.

[0004] Therefore, in order to solve the above problems, a mesh structure end cover is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the utility model proposes an end cover with a mesh structure.

[0006] The technical solution adopted by the utility model to solve its technical problem is: the utility model describes a mesh structure end cover, including an end cover body; a fixing groove is opened around the edge of one end of the end cover body; and a motor shaft hole is opened at the other end of the end cover body; a plurality of mesh grooves are opened on the inner side surface of one end of the end cover body close to the motor shaft hole; and the mesh grooves are arranged in a mesh-like ring shape.

[0007] Preferably, the threaded connection on the fixing groove is provided with a connecting bolt; four connecting bolts are provided; a fixing frame is connected to the connecting bolt; six protective components are installed on the fixing frame; the six protective components are arranged in a T shape on the fixing frame.

[0008] Preferably, the protective component includes a connecting column; a buffer column is slidably connected to the connecting column; a movable groove is opened in the buffer column, and the buffer column is slidably connected in the movable groove in the buffer column; a buffer spring is fixedly connected to the top end of the connecting column; the other end of the buffer spring is fixed on the inner side of the buffer column.

[0009] Preferably, the top of the connecting bolt is configured to be hexagonal; and a threaded hole is provided on the top surface of the connecting bolt.

[0010] Preferably, a fixing bolt is installed on the fixing bracket; the fixing bracket is fixed in the threaded hole through the fixing bolt and then fixed on the connecting bolt.

[0011] Preferably, a protective plate is connected to one end of the protective component away from the fixing bracket; six protective components are connected to the same protective plate; the protective plate is made of rubber.

[0012] Preferably, a support column is fixedly connected to the fixing bracket; one end of the support column away from the fixing bracket is lapped on the outer surface of the end cover body.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the end cover with a reticulated structure of the present utility model, the inner side surface of the end cover body adopts a reticulated structure, which reduces material consumption and improves the material flow path while ensuring the strength of the product, reduces die-casting stress concentration, and at the same time, the design of the reticulated structure may help to reduce the weight of the entire end cover. The reduction of the end cover weight helps to reduce the overall mass of the motor, thereby reducing the energy consumption during the operation of the motor.

[0015] 2. For the end cover with a reticulated structure of the present utility model, by setting the protective component, when the end cover body is impacted, the protective plate drives the buffer column to move, and then drives the connecting column to slide in the moving groove in the buffer column. The buffer spring reduces the impact force brought by the impact, thereby protecting the end cover body, so that when the end cover body is impacted, the impact force can be effectively dispersed and reduced, thus reducing damage to the end cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 It is a schematic diagram of the separated structure of the end cover body and the fixing bracket of the present utility model;

[0019] Figure 3 It is a schematic diagram of the end cover body structure of the present utility model;

[0020] Figure 4 It is a schematic diagram of the separated structure of the connecting bolt and the fixing bracket of the present utility model;

[0021] Figure 5 Schematic diagram of the fixing frame structure in the present utility model;

[0022] Figure 6 Schematic diagram of the protection component structure in the present utility model.

[0023] In the figure: 1, end cover body; 2, fixing groove; 3, connecting bolt; 4, fixing frame; 5, threaded hole; 6, fixing bolt; 7, protection component; 701, connecting column; 702, moving groove; 703, buffer spring; 704, buffer column; 8, protection plate; 9, support column; 10, motor shaft hole; 11, reticulated groove. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] As Figure 1-6 shown, a reticulated end cover includes an end cover body 1; a fixing groove 2 is circumferentially formed at one end edge of the end cover body 1; and a motor shaft hole 10 is formed at the other end of the end cover body 1; a plurality of reticulated grooves 11 are formed on the inner side surface of the end cover body 1 near the motor shaft hole 10; and the reticulated grooves 11 are arranged in a reticulated ring shape; the reticulated structure is adopted on the inner side surface of the end cover body 1, which reduces the material consumption, improves the material flow channel, reduces the die-casting stress concentration while ensuring the product strength. At the same time, the design of the reticulated structure may help to reduce the weight of the entire end cover, and the reduction of the end cover weight helps to reduce the overall mass of the motor, thereby reducing the energy consumption during the operation of the motor.

[0026] Further, as Figure 2 and Figure 4 shown, a connecting bolt 3 is threadedly connected to the fixing groove 2; four connecting bolts 3 are provided; a fixing frame 4 is connected to the connecting bolt 3; six protection components 7 are installed on the fixing frame 4; the six protection components 7 are arranged in a T shape on the fixing frame 4; by turning the connecting bolt 3, the connecting bolt 3 is fixed in the fixing groove 2, and then the fixing frame 4 and the protection component 7 are fixed on the end cover body 1.

[0027] Further, as Figure 6As shown, the protection component 7 includes a connecting column 701; a buffer column 704 is slidably connected to the connecting column 701; a moving groove 702 is formed in the buffer column 704, and the buffer column 704 is slidably connected in the moving groove 702 in the buffer column 704; a buffer spring 703 is fixedly connected to the top end of the connecting column 701; the other end of the buffer spring 703 is fixed to the inner side surface of the buffer column 704; by providing the protection component 7, when the end cap body 1 is impacted, the protection plate 8 drives the buffer column 704 to move, and then drives the connecting column 701 to slide in the moving groove 702 in the buffer column 704, and the buffer spring 703 reduces the impact force brought by the impact, thereby protecting the end cap body 1, so that when the end cap body 1 is impacted, the impact force can be effectively dispersed and reduced, thus reducing damage to the end cap body 1.

[0028] Further, as Figure 2 and Figure 4 shown, the top of the connecting bolt 3 is hexagon-shaped; a threaded hole 5 is formed in the top end surface of the connecting bolt 3; a fixing bolt 6 is installed on the fixing bracket 4; the fixing bracket 4 is fixed in the threaded hole 5 through the fixing bolt 6 and then fixed on the connecting bolt 3; during operation, by tightening the fixing bolt 6, the fixing bolt 6 is rotated threadedly into the threaded hole 5, thereby fixing the fixing bracket 4, so that the fixing bracket 4 is fixed on the connecting bolt 3. The top of the connecting bolt 3 is hexagon-shaped, and when the connecting bolt 3 is fixed on the end cap body 1, it is more convenient for personnel to tighten the connecting bolt 3.

[0029] Further, as Figure 4 shown, one end of the protection component 7 away from the fixing bracket 4 is connected with a protection plate 8; six protection components 7 are connected to the same protection plate 8; the protection plate 8 is made of rubber; during operation, the protection plate 8 reduces the impact force borne when the end cap body 1 is impacted, assisting the protection component 7 to protect the end cap body 1. At the same time, when the rubber-made protection plate 8 is in use, if a person accidentally hits the end cap body 1, the rubber-made protection plate 8 can play a buffering role and reduce the harm to the person.

[0030] Further, as Figure 1 and Figure 4 shown, a support column 9 is fixedly connected to the fixing bracket 4; one end of the support column 9 away from the fixing bracket 4 is lapped on the outer surface of the end cap body 1; during operation, the support column 9 assists the connecting bolt 3 to support the fixing bracket 4 and shares the impact force generated when the fixing bracket 4 is impacted.

[0031] Working principle: During operation, the inner side surface of the end cover body 1 adopts a reticulated structure, which reduces material consumption, improves the material flow path, and reduces die-casting stress concentration while ensuring the product strength; by turning the connecting bolt 3, the connecting bolt 3 is fixed in the fixing groove 2, and then the fixing bracket 4 and the protection component 7 are fixed on the end cover body 1; when the end cover body 1 is impacted, the protection plate 8 drives the buffer column 704 to move, and then drives the connecting column 701 to slide in the moving groove 702 in the buffer column 704, and the buffer spring 703 reduces the impact force brought by the impact, thereby protecting the end cover body 1; during operation, by tightening the fixing bolt 6, the fixing bolt 6 is screwed into the threaded hole 5 by thread rotation, and then the fixing bracket 4 is fixed, so that the fixing bracket 4 is fixed on the connecting bolt 3. The top of the connecting bolt 3 is hexagonal. When the connecting bolt 3 is fixed on the end cover body 1, it is more convenient for personnel to tighten the connecting bolt 3; during operation, the protection plate 8 reduces the impact force borne when the end cover body 1 is impacted, and assists the protection component 7 to protect the end cover body 1. At the same time, when the protection plate 8 made of rubber is in use, if a person accidentally hits the end cover body 1; the support column 9 assists the connecting bolt 3 to support the fixing bracket 4 and shares the impact force generated when the fixing bracket 4 is impacted.

[0032] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A reticulated structure end cover, comprising an end cover body (1); characterized in that: A fixing groove (2) is circumferentially formed at one end edge of the end cover body (1); and a motor shaft hole (10) is formed at the other end of the end cover body (1); a plurality of reticular grooves (11) are formed on the inner side surface of the end cover body (1) near the motor shaft hole (10); and the reticular grooves (11) are arranged in a reticular ring shape.

2. The reticulated structure end cap according to claim 1, characterized in that: A connecting bolt (3) is threadedly connected to the fixing groove (2); four connecting bolts (3) are provided; a fixing frame (4) is connected to the connecting bolt (3); six protection components (7) are installed on the fixing frame (4); and the six protection components (7) are arranged in a T shape on the fixing frame (4).

3. The end cap with a reticular structure according to claim 2, characterized in that: The protection component (7) includes a connecting column (701); a buffer column (704) is slidably connected to the connecting column (701); a moving groove (702) is formed in the buffer column (704), and the buffer column (704) is slidably connected in the moving groove (702) formed in the buffer column (704); a buffer spring (703) is fixedly connected to the top end of the connecting column (701); and the other end of the buffer spring (703) is fixed to the inner side surface of the buffer column (704).

4. The end cover with a reticular structure according to claim 2, wherein: The top of the connecting bolt (3) is hexagonal; a threaded hole (5) is formed in the top end surface of the connecting bolt (3).

5. The end cover with a reticulated structure according to claim 2, characterized in that: A fixing bolt (6) is installed on the fixing frame (4); and the fixing frame (4) is fixed in the threaded hole (5) and thus fixed to the connecting bolt (3) through the fixing bolt (6).

6. The reticulated structure end cap according to claim 3, characterized in that: A protection plate (8) is connected to the end of the protection component (7) away from the fixing frame (4); the six protection components (7) are connected to the same protection plate (8); and the protection plate (8) is made of rubber.

7. The end cover with a reticulated structure according to claim 2, wherein: A support column (9) is fixedly connected to the fixing frame (4); and the end of the support column (9) away from the fixing frame (4) is lapped on the outer surface of the end cover body (1).