A finned cooling motor structure

Abstract

This utility model discloses a motor structure with heat dissipation fins, including a motor body, a first bearing assembly installed at a first axial end of the motor body, a second bearing assembly installed at a second axial end of the motor body, an end cover covering the outer periphery of the first bearing assembly, and a cooling fan disposed within the end cover. The end cover has multiple heat dissipation holes. The motor body includes a base and a rotating shaft rotatably disposed within the base. The rotating shaft is supported on the first and second bearing assemblies. The cooling fan is mounted on the rotating shaft. The outer wall of the base has multiple heat dissipation fins extending axially in the circumferential direction. The motor structure also includes a guide shroud installed at the second axial end of the motor body and covering the second bearing assembly. An air outlet is located between the end cover and the outer wall of the base, and an air inlet is located between the guide shroud and the outer wall of the base. The motor structure provided by this utility model can improve the heat dissipation performance of the bearing at the shaft extension end and reduce rainwater ingress into the motor.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and specifically relates to a motor structure with heat dissipation fins for cooling. Background Technology

[0002] Traditional finned motors include a motor body, a first bearing assembly mounted on the first axial end of the motor body, a second bearing assembly mounted on the second axial end of the motor body, an end cover covering the outer periphery of the first bearing assembly, and a cooling fan installed inside the end cover. The first bearing assembly dissipates heat through the airflow introduced by the cooling fan from the end cover. However, the first bearing assembly relies on natural heat dissipation, which is inefficient. The first bearing assembly at the shaft extension end cannot be effectively cooled, resulting in a high temperature for the first bearing assembly and affecting the service life of the motor. Utility Model Content

[0003] The purpose of this invention is to provide a motor cooling structure with heat dissipation fins, which can use a cooling fan to dissipate heat from the bearing assembly at the shaft extension end, thereby improving the reliability of the motor.

[0004] Based on the above problems, the technical solution provided by this utility model is as follows:

[0005] A heat dissipation fin-cooled motor structure includes a motor body, a first bearing assembly mounted on a first axial end of the motor body, a second bearing assembly mounted on a second axial end of the motor body, an end cover covering the outer periphery of the first bearing assembly, and a cooling fan disposed within the end cover. The end cover has multiple heat dissipation holes. The motor body includes a base and a rotating shaft rotatably disposed within the base. The rotating shaft is supported on the first and second bearing assemblies. The cooling fan is mounted on the rotating shaft. The outer wall of the base has multiple heat dissipation fins extending axially in the circumferential direction. The structure also includes:

[0006] A flow guide is installed at the second axial end of the motor body and covers the second bearing assembly.

[0007] An air outlet is provided between the end cover and the outer wall of the base, and an air inlet is provided between the guide cover and the outer wall of the base.

[0008] In some embodiments, the end cap of the base located at the second axial end of the motor body is provided with a plurality of mounting posts in the circumferential direction, and the flow guide is mounted on the plurality of mounting posts via a plurality of connectors.

[0009] In some embodiments, the fairing is provided with a first waist-shaped positioning hole through which the connector passes.

[0010] In some embodiments, the connector is a bolt, and a first gasket is provided between the connector and the outer wall of the shroud.

[0011] In some embodiments, the flow guide includes a first flow guide portion, a second flow guide portion, and an end plate connected in sequence. The first flow guide portion is semi-circular, and the second flow guide portion tapers towards the end plate from the first flow guide portion. The end plate is provided with a clearance opening that cooperates with the second bearing component.

[0012] In some embodiments, the end cover opposite to the motor body is detachably provided with a baffle, and there is an air inlet gap between the baffle and the end cover.

[0013] In some embodiments, the baffle is provided with a plurality of connecting pieces in the circumferential direction, and the inner wall of the end cover is provided with a plurality of connecting blocks that cooperate with the plurality of connecting pieces. The connecting pieces and the connecting blocks are detachably connected by fasteners.

[0014] In some embodiments, the connecting piece is provided with a second waist-shaped positioning hole through which the fastener passes.

[0015] In some embodiments, the fastener is a bolt, and a second washer is provided between the fastener and the connecting piece.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. A guide shroud is installed above the second bearing assembly at the shaft extension end. The air from the cooling fan introduced into the end shroud is guided through the cooling fins to the position of the second bearing assembly to dissipate heat from the second bearing assembly, thereby improving heat dissipation efficiency, preventing the bearing temperature from getting too high, and improving the reliability of the motor.

[0018] 2. Installing baffles on the end cover can reduce rainwater entering the motor and improve the reliability of motor operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the structural schematic diagrams of an embodiment of a heat dissipation fin cooling motor structure according to the present invention;

[0021] Figure 2 This is a second structural schematic diagram of an embodiment of the present utility model;

[0022] Figure 3 This is one of the structural schematic diagrams of the flow guide in the embodiments of this utility model;

[0023] Figure 4 This is the second schematic diagram of the structure of the flow guide in this utility model embodiment;

[0024] Figure 5 This is one of the schematic diagrams of the installation structure of the baffle in the embodiments of this utility model;

[0025] Figure 6 This is a second schematic diagram of the installation structure of the baffle in an embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of the baffle structure in an embodiment of the present utility model;

[0027] in:

[0028] 1. Base; 1-1. Heat dissipation fins;

[0029] 2. Shaft;

[0030] 3. First bearing assembly;

[0031] 4. Second bearing assembly;

[0032] 5. Cooling fan;

[0033] 6. End cap;

[0034] 7. Flow guide 7-1, first flow guide 7-1a, first waist-shaped positioning hole 7-2, second flow guide 7-3, end plate;

[0035] 8. Install the column;

[0036] 9. Connectors;

[0037] 10. Baffle;

[0038] 11. Connecting piece 11-1, second oblong positioning hole;

[0039] 12. Fasteners;

[0040] 13. Connecting block. Detailed Implementation

[0041] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0042] like Figure 1 and Figure 2The diagram shown is a structural schematic of an embodiment of the present utility model, which provides a heat dissipation fin cooling motor structure, including a motor body, a first bearing assembly 3 installed at the first axial end of the motor body, a second bearing assembly 4 installed at the second axial end (shaft extension end) of the motor body, an end cover 6 covering the outer periphery of the first bearing assembly 3, and a cooling fan 5 disposed inside the end cover 6.

[0043] The motor body includes a base 1 and a rotating shaft 2 rotatably disposed within the base 1. The rotating shaft 2 is supported on a first bearing assembly 3 and a second bearing assembly 4. A cooling fan 5 is mounted on the rotating shaft 2. Multiple cooling fins 1-1 extending axially are provided on the outer wall of the base 1.

[0044] To improve the heat dissipation performance of the second bearing assembly 4 at the shaft extension end, a guide shroud 7 is also provided. This shroud is installed at the second axial end of the motor body and covers the second bearing assembly 4. An air outlet is located between the end cover 6 and the outer wall of the base 1, and an air inlet is located between the guide shroud 7 and the outer wall of the base 1. Thus, air introduced into the end cover 6 by the cooling fan 5 can enter the guide shroud 7 through the cooling fins 1-1 to dissipate heat from the second bearing assembly 4. The airflow direction is as follows: Figure 1 and Figure 2 As shown in Figure A.

[0045] To facilitate the installation of the flow guide 7, multiple mounting posts 8 are provided around the end cover at the second axial end of the motor body on the base 1. The flow guide 7 is mounted on the multiple mounting posts 8 via multiple connectors 9. The mounting posts 8 are welded to the outer circumference of the end cover and extend radially along the motor body. The connectors 9 are bolts.

[0046] To improve structural stability, a first gasket is provided between the connector 9 and the outer wall of the guide shield 7.

[0047] To facilitate adjustment of the installation position of the air deflector 7, a first waist-shaped positioning hole 7-1a is provided on the air deflector 7 for the connector 9 to pass through. The installation position of the air deflector 7 can be adjusted by adjusting the position of the connector 9 in the first waist-shaped positioning hole 7-1a.

[0048] like Figure 3 and Figure 4 As shown, the air deflector 7 includes a first air deflector 7-1, a second air deflector 7-2, and an end plate 7-3 connected in sequence. The first air deflector 7-1 is semi-circular, and the second air deflector 7-2 tapers from the first air deflector 7-1 towards the end plate 7-3. The end plate 7-3 has a clearance opening for cooperation with the second bearing assembly 4. The first air deflector 7-1 and the end plate 7-3 are connected by the second air deflector 7-2, which avoids wind vortices caused by right-angle connections and improves heat dissipation efficiency. There is a gap between the lower end of the second air deflector 7-2 and the second bearing assembly 4 to avoid interference with the oil injection pipe of the second bearing assembly 4.

[0049] To reduce rainwater entering the motor and improve its reliability, such as Figures 5 to 7 As shown, a baffle 10 is detachably provided at the end of the end cover 6 away from the motor body, and there is an air inlet gap between the baffle 10 and the end cover 6.

[0050] Specifically, multiple connecting pieces 11 are provided around the baffle 10, and multiple connecting blocks 13 that cooperate with the multiple connecting pieces 11 are provided on the inner wall of the end cover 6. The connecting pieces 11 and the connecting blocks 13 are detachably connected by fasteners 12, wherein the fasteners 12 are bolts. The connecting blocks 13 are welded to the end cover 6 and are provided with threaded holes that cooperate with the connecting parts 9. At the same time, a second gasket is provided between the fasteners 12 and the connecting pieces 11 to improve the stability of the structure.

[0051] To facilitate adjustment of the distance between the baffle 10 and the end cover 6 as needed, thereby reducing the amount of rainwater entering the motor, a second waist-shaped positioning hole 11-1 is provided on the connecting piece 11 for the fastener 12 to pass through. By adjusting the position of the fastener 12 in the second waist-shaped positioning hole 11-1, the distance between the baffle 10 and the end cover 6 can be adjusted. To improve the stability of the structure, two second waist-shaped positioning holes 11-1 are provided on the connecting piece 11 at intervals, and the connecting piece 11 and the connecting block 13 are connected by two fasteners 12.

[0052] The working principle of this utility model is as follows:

[0053] When the motor is working, the cooling fan 5 draws air into the end cover 6 through the air inlet gap between the baffle 10 and the end cover 6. The air in the end cover 6 is further introduced into the guide shroud 7 through the gap between the cooling fins 1-1 to dissipate heat on the second bearing assembly 4 at the shaft extension end. The baffle 10 installed on the end cover 6 can reduce rainwater entering the motor and improve the reliability of motor operation.

[0054] In summary, this motor structure can utilize a cooling fan to dissipate heat from the bearing assembly at the shaft extension end, improving heat dissipation performance. At the same time, it can reduce the amount of rainwater entering the motor, thereby improving the reliability of motor operation.

[0055] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A heat dissipation fin-cooled motor structure, comprising a motor body, a first bearing assembly mounted on a first axial end of the motor body, a second bearing assembly mounted on a second axial end of the motor body, an end cover covering the outer periphery of the first bearing assembly, and a cooling fan disposed within the end cover, wherein the end cover has a plurality of heat dissipation holes, the motor body includes a base, a rotating shaft rotatably disposed within the base, the rotating shaft being supported on the first bearing assembly and the second bearing assembly, the cooling fan being mounted on the rotating shaft, and the outer wall of the base having a plurality of axially extending heat dissipation fins circumferentially extended therefrom, characterized in that... Also includes: A flow guide is installed at the second axial end of the motor body and covers the second bearing assembly. An air outlet is provided between the end cover and the outer wall of the base, and an air inlet is provided between the guide cover and the outer wall of the base.

2. The fin-cooled electric machine construction of claim 1, wherein: The base is provided with multiple mounting posts on the circumferential direction of the end cover at the second axial end of the motor body, and the flow guide is mounted on the multiple mounting posts via multiple connectors.

3. The fin-cooled electric machine construction of claim 2 wherein: The flow guide is provided with a first waist-shaped positioning hole through which the connector passes.

4. The fin-cooled electric machine construction of claim 3, wherein: The connector is a bolt, and a first gasket is provided between the connector and the outer wall of the flow guide.

5. The fin-cooled electric machine construction of claim 1 wherein: The flow guide includes a first flow guide section, a second flow guide section, and an end plate connected in sequence. The first flow guide section is semi-circular, and the second flow guide section gradually narrows from the first flow guide section toward the end plate. The end plate is provided with a clearance opening that cooperates with the second bearing assembly.

6. The fin-cooled electric machine construction of claim 1 wherein: The end cover opposite to the motor body is detachably provided with a baffle, and there is an air inlet gap between the baffle and the end cover.

7. The fin-cooled electric machine construction of claim 6 wherein: The baffle is provided with multiple connecting pieces around its circumference, and the inner wall of the end cover is provided with multiple connecting blocks that cooperate with the multiple connecting pieces. The connecting pieces and the connecting blocks are detachably connected by fasteners.

8. The fin-cooled electric machine construction of claim 7, wherein: The connecting piece is provided with a second waist-shaped positioning hole through which the fastener passes.

9. The fin-cooled electric machine construction of claim 8 wherein: The fastener is a bolt, and a second washer is provided between the fastener and the connecting piece.

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