Motor end cover structure

Abstract

The utility model discloses a motor end cover structure, which relates to the technical field of motor end covers and comprises a motor end cover main body, a plurality of fixing plates distributed in an annular array are mounted at the rear part of the outer surface of the motor end cover main body, and mounting holes are formed in the plurality of fixing plates. The upper portion and the lower portion of the front inner wall of the motor end cover body are each provided with a plurality of heat dissipation holes, the heat dissipation holes extend to the front side of the motor end cover body, the upper portion and the lower portion of the front end of the motor end cover body are each provided with a screen, and the left portion and the right portion of the front end of the motor end cover body are jointly provided with a U-shaped frame. And a connecting shaft is movably arranged in the U-shaped frame in a sleeving manner. According to the utility model, the baffle plate, the brush and the connecting shaft cooperate with each other to block the front of the screen, so that dust, metal chips or other impurities are prevented from passing through the heat dissipation holes to pollute the interior of the motor, and the performance and normal use of the motor are ensured.

Description

Technical Field

[0001] This utility model relates to the field of motor end cover technology, and in particular to a motor end cover structure. Background Technology

[0002] Motor end caps are an important component of motors, primarily used to support motor bearings, protect internal components, and provide a seal to prevent dust, moisture, and other external contaminants from entering the motor. End caps are typically made of aluminum alloy, cast iron, or other high-strength materials to ensure good durability and heat dissipation.

[0003] The prior art (publication number: CN 221652370 U) discloses a motor end cover structure, including a motor. The front of the motor is connected to the end cover by a fixed plate threaded connection. The end cover is provided with a heat dissipation structure, which includes ventilation holes, a sliding groove and a filter plate. A plurality of ventilation holes are opened at the front of the end cover. The sliding groove is opened at the inside of the end cover near the two sides. The filter plate is slidably installed in the sliding groove by a slider at the middle position of the two outer sides of the filter plate.

[0004] While the aforementioned patent allows airflow to pass through the larger holes and then the smaller holes with the help of the ventilation holes at the front of the end cover, thus accelerating airflow and enhancing heat exchange inside the motor, and the filter plate inside the end cover helps filter dust from the air entering the motor, reducing dust damage to the motor's interior, it has the following drawbacks: after the motor is used, the ventilation holes on the end cover cannot be closed. The ventilation holes are exposed for a long time, which easily accumulates dust, metal shavings, or other impurities, leading to internal contamination of the motor, affecting motor performance, and even causing short circuits. Further improvements are needed, and therefore, a motor end cover structure is proposed. Utility Model Content

[0005] The main purpose of this utility model is to provide a motor end cover structure that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A motor end cover structure includes a motor end cover body. A plurality of fixed plates arranged in a circular array are mounted on the rear outer surface of the motor end cover body. Each of the fixed plates has mounting holes. A plurality of heat dissipation holes are formed on the upper and lower parts of the front inner wall of the motor end cover body, extending to the front side of the motor end cover body. Screens are mounted on the upper and lower front ends of the motor end cover body. A U-shaped frame is mounted on the left and right front ends of the motor end cover body. A connecting shaft is movably fitted inside the U-shaped frame. Two symmetrically distributed baffles are fixedly fitted on the rear outer surface of the connecting shaft. Brushes are mounted on the rear ends of both baffles. The connecting shaft can drive the baffles to rotate, thereby moving the brushes to the front side of the screen.

[0008] Preferably, the rear part of the outer surface of the connecting shaft is provided with a plurality of protrusions arranged in a ring array, the rear end of the connecting shaft is fixedly connected to a circular plate, the outer surface of the connecting shaft is movably fitted with a knob through the protrusions, and the front end of the knob is provided with a plurality of fixing rods arranged in a ring array.

[0009] Preferably, the front end of the U-shaped frame has a plurality of fixing holes arranged in a circular array, and the plurality of fixing rods are respectively located in the plurality of fixing holes.

[0010] Preferably, the diameter of the circular plate is larger than the diameter of the connecting shaft, and a spring is movably connected between the knob and the circular plate, the spring being movably sleeved on the outer surface of the connecting shaft.

[0011] Preferably, the front end of the brush is in active contact with the front end of the motor end cover body.

[0012] Preferably, the outer surface of the motor end cover body is equipped with a plurality of heat sinks arranged in a ring array.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up baffles, brushes and connecting shafts to work together, the front of the screen can be blocked. After the motor is used, pull the knob back to move the fixing rod away from the fixing hole. Turning the knob will drive the connecting shaft to rotate. The connecting shaft drives the brush to rotate to the front of the screen through the baffle, which can close the heat dissipation holes and prevent dust, metal shavings or other impurities from contaminating the inside of the motor through the heat dissipation holes, thus ensuring the motor performance and normal use.

[0015] 2. The screen surface can be cleaned by setting up a brush. When the brush rotates, it can clean the surface of the screen. The cleaned screen can reduce impurities that obstruct airflow, improve the airflow speed of the heat dissipation holes, enhance the heat dissipation performance of the motor, and prevent the motor efficiency from decreasing or being damaged due to overheating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire structure presented in this embodiment;

[0017] Figure 2 This is a schematic diagram of another viewpoint structure in this embodiment;

[0018] Figure 3 This is a cross-sectional view of the U-shaped frame and baffle in this embodiment;

[0019] Figure 4 This is a schematic diagram of the U-shaped frame in this embodiment;

[0020] Figure 5 This is an enlarged structural diagram of point A in this embodiment.

[0021] In the diagram: 1. Motor end cover body; 2. Heat sink; 3. Fixing plate; 4. Mounting hole; 6. Screen; 7. Baffle; 8. U-shaped frame; 9. Heat dissipation hole; 10. Brush; 11. Connecting shaft; 12. Fixing hole; 13. Knob; 14. Fixing rod; 15. Protrusion; 16. Spring; 17. Circular plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-5As shown, a motor end cover structure includes a motor end cover body 1. Several fixing plates 3 arranged in a circular array are mounted on the rear of the outer surface of the motor end cover body 1. Each fixing plate 3 has mounting holes 4. Several heat dissipation holes 9 are formed on the upper and lower parts of the front inner wall of the motor end cover body 1, extending to the front side of the motor end cover body 1. The heat dissipation holes 9 on one side together form a fan-shaped structure. Screens 6 are installed on the upper and lower front ends of the motor end cover body 1, respectively located in front of the upper and lower sets of heat dissipation holes 9. The screens 6 have a fan-shaped structure and are used to block large particles of impurities. The left and right front ends of the motor end cover body 1 are also shown. A U-shaped frame 8 is installed together, and a connecting shaft 11 is movably fitted inside the U-shaped frame 8. Two symmetrically distributed baffles 7 are fixedly fitted on the rear of the outer surface of the connecting shaft 11. The baffles 7 have a fan-shaped structure, and brushes 10 are installed at the rear ends of the two baffles 7. When in use, the motor end cover body 1 is installed on the motor, and the hot air inside the motor can be discharged through the heat dissipation holes 9 and the screen 6. When the motor is no longer in use, rotating the connecting shaft 11 will rotate the two baffles 7 ninety degrees, causing the brushes 10 to rotate to the front of the screen 6, which will close the heat dissipation holes 9. This prevents dust, metal shavings or other impurities from contaminating the inside of the motor through the heat dissipation holes 9, ensuring the performance of the motor and normal use.

[0026] To fix the position of the rotating connecting shaft 11, several protrusions 15 arranged in a circular array are installed on the rear of the outer surface of the connecting shaft 11. A circular plate 17 is fixedly connected to the rear end of the connecting shaft 11. A knob 13 is movably fitted onto the outer surface of the connecting shaft 11 through the protrusions 15. The protrusions 15 restrict the knob 13 to move only back and forth. Several fixing rods 14 arranged in a circular array are installed at the front end of the knob 13. Several fixing holes 12 arranged in a circular array are opened at the front end of the U-shaped frame 8. The fixing rods 14 are respectively located at several... Inside the fixing hole 12, the diameter of the circular plate 17 is larger than the diameter of the connecting shaft 11. A spring 16 is movably connected between the knob 13 and the circular plate 17. The spring 16 is movably sleeved on the outer surface of the connecting shaft 11. When the knob 13 is pulled backward, the spring 16 is compressed, which drives the fixing rod 14 away from the fixing hole 12. The connecting shaft 11 can be rotated by rotating the knob 13. After rotation, the knob 13 is released, and the spring 16 drives the knob 13 to move backward, so that the fixing rod 14 re-enters the fixing hole 12, thus fixing the position of the connecting shaft 11.

[0027] In addition, the front end of the brush 10 is in active contact with the front end of the motor end cover body 1. The brush 10 is an anti-static brush. When the brush 10 rotates, it can clean the surface of the screen 6. The cleaned screen 6 can reduce impurities that obstruct airflow, increase the airflow speed of the heat dissipation holes 9, enhance the heat dissipation performance of the motor, and prevent the motor efficiency from decreasing or being damaged due to overheating.

[0028] The outer surface of the motor end cover body 1 is equipped with several heat sinks 2 arranged in a ring array. The heat sinks 2 are used to increase the heat dissipation area of ​​the motor end cover body 1.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric machine end cap structure comprising an electric machine end cap body (1), characterized in that: The rear part of the outer surface of the motor end cover body (1) is provided with a plurality of fixed plates (3) arranged in an annular array, a plurality of mounting holes (4) are formed in the fixed plates (3), a plurality of heat dissipation holes (9) are formed in the upper and lower inner walls of the motor end cover body (1), the heat dissipation holes (9) extend to the front side of the motor end cover body (1), a screen (6) is installed on the upper and lower front ends of the motor end cover body (1), a U-shaped frame (8) is installed on the left and right front ends of the motor end cover body (1), a connecting shaft (11) is movably sleeved in the U-shaped frame (8), two left and right symmetrically distributed baffles (7) are fixedly sleeved on the rear part of the outer surface of the connecting shaft (11), a brush (10) is installed on the rear end of each baffle (7), and the connecting shaft (11) can drive the baffles (7) to rotate, so as to drive the brushes (10) to move to the front side of the screen (6).

2. The motor end turn structure of claim 1, wherein: The rear part of the outer surface of the connecting shaft (11) is provided with a plurality of protrusions (15) arranged in an annular array, the rear end of the connecting shaft (11) is fixedly connected with a circular plate (17), and the outer surface of the connecting shaft (11) is movably sleeved with a knob (13) through the protrusions (15).

3. The motor end turn structure of claim 2, wherein: The front end of the U-shaped frame (8) is provided with a plurality of fixed holes (12) arranged in an annular array, and a plurality of fixed rods (14) are located in the fixed holes (12), respectively.

4. The motor end turn structure of claim 2, wherein: The diameter of the circular plate (17) is greater than the diameter of the connecting shaft (11), a spring (16) is movably connected between the knob (13) and the circular plate (17), and the spring (16) is movably sleeved on the outer surface of the connecting shaft (11).

5. The motor end turn structure of claim 1, wherein: The front end of the brush (10) is movably connected with the front end of the motor end cover body (1).

6. The motor end turn structure of claim 1, wherein: The outer surface of the motor end cover body (1) is provided with a plurality of heat dissipation fins (2) arranged in an annular array.

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