An IC 511 inner sliding ring motor sliding ring chamber cooling structure

Abstract

The utility model discloses a kind of IC511 inner sliding ring motor sliding ring room cooling structure, it includes base, rotating shaft, sliding ring, sliding ring fan, wind collecting cover, the sliding ring is placed in the sliding ring room inside, and is sleeved in the rotating shaft outside, the wind collecting cover is installed on the sliding ring room upside and is communicated with it, the sliding ring fan is located in the wind collecting cover inside, the wind collecting cover is compressed after the wind that the sliding ring fan blows to blow to the sliding ring surface, again exhaust through the air outlet net board below the sliding ring room, it can satisfy sliding ring heat dissipation demand, reduce sliding ring and carbon brush wear, prolong the service life of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing, and in particular to a cooling structure for the slip ring chamber of an IC511 internal slip ring motor. Background Technology

[0002] Electric motors are commonly used equipment in industrial production. Their efficiency and lifespan are closely related to the heat generated, making cooling crucial. The IC511 is a fully enclosed self-ventilated motor cooling system. It achieves heat dissipation through heat pipes around the motor housing and internal and external airflow fans, making it suitable for environments with high protection requirements, such as chemical and coal mining industries.

[0003] The slip ring structure is typically designed with the slip ring housed inside the slip ring chamber. Traditionally, the slip ring chamber is cooled by welding heat dissipation fins to the outside of the motor frame. These fins exchange heat with the outside air to cool the slip ring chamber. However, this cooling method has several drawbacks. When the rotor current is high and the number of carbon brushes is large, the heat generated by friction between the slip ring and the carbon brushes is significant. Relying solely on the heat conduction of the heat dissipation fins is insufficient to meet the cooling needs of the slip ring chamber, leading to high slip ring surface temperatures, rapid wear, and ultimately, a reduced motor lifespan. Utility Model Content

[0004] The problem solved by this utility model is to provide a cooling structure for the slip ring chamber of an IC511 internal slip ring motor, which can meet the heat dissipation requirements of the slip ring, reduce slip ring wear, and extend the service life of the motor.

[0005] This utility model provides a cooling structure for the slip ring chamber of an IC511 internal slip ring motor, which includes a base, a rotating shaft, and a slip ring. The slip ring chamber is provided on the outside of the base. The slip ring is placed inside the slip ring chamber and fitted onto the outside of the rotating shaft. The structure is characterized by further including a slip ring fan and an air collector shroud. The air collector shroud is installed on the upper side of the slip ring chamber and communicates with it. The slip ring fan is located inside the air collector shroud. The air collector shroud compresses the air blown in by the slip ring fan and blows it onto the surface of the slip ring, and then discharges it through the air outlet mesh plate below the slip ring chamber.

[0006] A filter is also provided outside the slip ring chamber, and the filter is connected to the outer end cover chamber via a support.

[0007] The air collecting hood is equipped with a flow diversion guide plate, which diverts the air and corresponds to the three phase rings on the slip ring.

[0008] The lower end of the slip ring chamber is also provided with an air outlet in the shape of an "8" at the position corresponding to the air outlet mesh plate.

[0009] The cross-sectional area of ​​the upper opening of the air collecting hood is larger than the cross-sectional area of ​​the lower opening.

[0010] The beneficial effects of the motor slip ring chamber cooling structure of this utility model application are: By installing a connected air collector hood outside the slip ring chamber, the cold air blown in by the slip ring fan is compressed and blown onto the slip ring surface. After being guided through the slip ring chamber, it is discharged through the lower air outlet plate. This can remove the heat accumulated by the slip ring rubbing against the carbon brush during operation, thus achieving a good heat dissipation effect, ensuring the normal operation of the slip ring, reducing slip ring wear caused by heat, and extending the service life of the motor. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model.

[0012] Explanation of reference numerals in the attached figures 1-Support; 2-Filter; 3-Shaft; 4-Brush rod; 5-Slip ring; 6-Slip ring fan; 7-Inner end cover; 8-Air collector cover; 9-Base; 10-External fan; 11-Slip ring chamber; 12-Air outlet mesh plate; 13-Flow divider plate; 14-Air outlet. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "multiple" means two or more.

[0015] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 , 2As shown, a cooling structure for the slip ring chamber of an IC511 internal slip ring motor includes a base 9, a rotating shaft 3, a slip ring 5, a slip ring fan 6, and an air collector shroud 8. The rotating shaft 3 is installed inside the base 9 and extends outward. A slip ring chamber 11 is provided on the outer wall of the inner end cover 7 near the base 9. The slip ring 5 is placed inside the slip ring chamber 11 and fitted onto the outside of the rotating shaft 3. A brush rod 4 is also provided on the outside of the slip ring 5 and is fixed on the inner end cover 7. The air collector shroud 8 is installed on the upper side of the slip ring chamber 11 and communicates with it. The slip ring fan 6 is located inside the air collector shroud 8. Since the cross-sectional area of ​​the upper opening of the air collector shroud 8 is larger than the cross-sectional area of ​​the lower opening, the lower opening of the air collector shroud 8 is located directly above the slip ring 5. Thus, the air blown in by the slip ring fan 6 is compressed by the air collector shroud 8, blown onto the surface of the slip ring 5, and then guided by the slip ring chamber 11 before being discharged from the lower air outlet mesh plate 12.

[0017] The motor slip ring chamber cooling structure in this application, compared to the existing motor slip ring chambers which use heat dissipation fins for cooling, has poor heat dissipation, resulting in high slip ring surface temperature, rapid wear, and ultimately affecting the motor's service life. In contrast, this application, by setting an air collector shroud 8 and a slip ring fan 6 on the outside of the slip ring chamber 11, ensures that the air blown in by the slip ring fan 6 is compressed by the air collector shroud 8 and blown onto the surface of the slip ring 5. The air forms an internal annular airflow path inside the slip ring chamber 11 and is then discharged through the air outlet mesh 12 below the slip ring chamber 11. This effectively removes the heat accumulated between the slip ring 5 and the carbon brushes, providing excellent heat dissipation, ensuring the normal operation of the slip ring 5, reducing wear caused by heat on the slip ring 5, and extending the motor's service life.

[0018] Furthermore, a filter 2 is provided outside the slip ring chamber 11. The filter 2 is connected to the slip ring chamber 11 through the support 1. The filter 2 filters the cold air entering the slip ring fan 6, reducing the amount of impurities entering the slip ring chamber 11.

[0019] Furthermore, the air collector shroud 8 is also equipped with a flow diversion guide plate 13. By setting the flow diversion guide plate 13, the air blown into the air collector shroud 8 is diverted and corresponds to the three phase rings of the slip ring 5, which can ensure the cooling effect of each phase ring and the uniformity of heat dissipation.

[0020] Furthermore, the lower end of the slip ring chamber 11 is provided with an air outlet 14 in the shape of an octagon at the position corresponding to the air outlet mesh plate 12. The air outlet 14 guides the airflow and facilitates the blowing out of hot air.

[0021] The working principle of the motor slip ring chamber cooling structure in this application is as follows: like Figure 2As shown, an air collector shroud 8 is installed on the slip ring chamber 11 of the IC511 internal slip ring motor. Cold air is drawn in by the slip ring fan 6 inside the shroud 8. After being filtered by the filter 2, the cold air enters the shroud 8, is concentrated and compressed, and then blown onto the three phase rings of the slip ring 5 for heat exchange. The hot air after heat exchange is then discharged through the ventilation mesh plate 12 below the slip ring chamber 11. This invention features a compact structure, a reasonable cooling airflow arrangement, and does not affect the discharge of hot air from the motor's cooling pipes. It improves the cooling capacity of the slip ring chamber of the IC511 internal slip ring motor, especially when the rotor current is large. Furthermore, it achieves an IP24 protection rating, has strong structural independence, requires no external water source or forced fan, and has low maintenance costs.

Claims

1. A cooling structure for a slip ring chamber of an IC511 internal slip ring motor, comprising a base, a shaft, and a slip ring, wherein a slip ring chamber is provided on the outer side of the base, and the slip ring is placed inside the slip ring chamber and fitted onto the outside of the shaft, characterized in that... It also includes a slip ring fan and an air collector shroud. The air collector shroud is installed on the upper side of the slip ring chamber and communicates with it. The slip ring fan is located inside the air collector shroud. The air collector shroud compresses the air blown in by the slip ring fan and blows it toward the surface of the slip ring, and then discharges it through the air outlet mesh plate below the slip ring chamber. The air collector shroud is provided with a flow diversion guide plate. The flow diversion guide plate divides the air and corresponds to the three phase rings on the slip ring.

2. The cooling structure for the slip ring chamber of an IC511 internal slip ring motor according to claim 1, characterized in that, A filter is also provided outside the slip ring chamber, and the filter is connected to the slip ring chamber through a support.

3. The cooling structure for the slip ring chamber of an IC511 internal slip ring motor according to claim 2, characterized in that, The lower end of the slip ring chamber is also provided with an air outlet in the shape of an "8" at the position corresponding to the air outlet mesh plate.

4. The cooling structure for the slip ring chamber of an IC511 internal slip ring motor according to claim 3, characterized in that, The cross-sectional area of ​​the upper opening of the air collecting hood is larger than the cross-sectional area of ​​the lower opening.

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