Motor end cover sealing structure

Abstract

The utility model discloses a motor end cover sealing structure, and belongs to the field of motors. Comprising a motor housing, one side of which is provided with an end cover; heat dissipation grooves for heat dissipation are formed in the end cover in the circumferential direction; the rotating ring is rotationally arranged on the end cover; the shielding assembly is arranged on the rotating ring; the shielding assembly comprises a shielding plate arranged on the rotating ring; and the shielding block is fixedly arranged on the shielding plate in the circumferential direction and is used for shielding the heat dissipation groove. The motor end cover sealing structure has the beneficial effect that the motor end cover sealing structure can be conveniently used in different environments.

Description

Technical Field

[0001] This application relates to the field of electric motors, and more particularly, to a sealing structure for the end cover of an electric motor. Background Art

[0002] The housing of a traditional motor generally includes an end cover and an outer shell. In a high-temperature environment, in order to ensure the heat dissipation of the motor, heat dissipation grooves or holes are usually provided on the end cover or the outer shell. However, motors are usually used as accessories, and during the use of the motor in a dusty and humid environment, it is inevitable that dust, water vapor or debris particles will enter the interior of the motor through the heat dissipation grooves and holes. This will not only make the internal components prone to rust or damage, resulting in an increased safety hazard. Therefore, a motor with better sealing performance is required, but it is not convenient to use in different environments.

[0003] The structure of the product can refer to the end cover structure of a three-phase asynchronous motor disclosed in the Chinese patent document with the publication number: CN220775533U, which includes a rotating shaft. An inner frame is embedded inside the rotating shaft. A heat dissipation component is arranged on the side of the inner frame. A blowing component is embedded inside the inner frame. A rotating shaft is arranged on the side of the blowing component. In this utility model, by setting the heat dissipation component, under the elastic action of the first spring, the clamping block can be clamped with the clamping groove, and the mounting ring can drive the heat dissipation net to be installed and fixed inside the end cover.

[0004] The end cover of the motor in the above structure is not sealed, resulting in the problem of inconvenience in use in different environments.

[0005] Therefore, a sealing structure for the end cover of an electric motor that is convenient to use in different environments is needed. Summary of the Utility Model

[0006] The content part of this application is used to briefly introduce the concepts, which will be described in detail in the following detailed implementation part. The content part of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] To solve the technical problems mentioned in the above background art part, some embodiments of this application provide a sealing structure for the end cover of an electric motor, including: an electric motor housing, with an end cover installed on one side; the end cover, on which heat dissipation grooves for heat dissipation are circumferentially arranged; a rotating ring, rotatably arranged on the end cover; a shielding component, arranged on the rotating ring; the shielding component includes: a shielding plate, arranged on the rotating ring; shielding blocks, circumferentially and fixedly arranged on the shielding plate, used to shield the heat dissipation grooves.

[0008] Furthermore, an annular groove for accommodating the rotating ring is provided on the end cover, and an arc-shaped through groove is opened on the cylindrical wall of the annular groove, and the rotating ring shields the arc-shaped through groove.

[0009] Further, a connecting portion passing through the arc-shaped through groove is provided on the rotating ring. A sliding groove is formed at the lower end of the connecting portion, and an abutting portion slidably arranged in the sliding groove is fixedly connected to the shielding plate.

[0010] Further, a threaded hole extending to the sliding groove is formed in the connecting portion, and a bolt is threadedly installed in the threaded hole. One end of the bolt abuts against the abutting portion, and the side of the abutting portion in contact with the bolt is provided as an inclined surface.

[0011] Further, sealing grooves are formed on both side walls of the annular groove, and a flange embedded in the sealing groove is provided on the rotating ring.

[0012] Further, a sealing rubber pad is provided on the side surface of the shielding block close to the heat dissipation groove.

[0013] Further, an installation protrusion for installing to the motor housing is provided on the end cover. An installation hole is formed on the installation protrusion, and the end cover is installed by a bolt passing through the installation hole.

[0014] Further, an installation protrusion for installing to the motor housing is provided on the end cover. An installation hole is formed on the installation protrusion, and the end cover is installed by a bolt passing through the installation hole.

[0015] Further, through holes for the motor shaft to pass through are provided at the central positions of both the shielding plate and the end cover.

[0016] The beneficial effect of this application is: to provide a motor end cover sealing structure that is convenient to use in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, purposes, and advantages of this application more obvious. The schematic embodiments of the drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0019] In the drawings:

[0020] Figure 1 is the overall schematic diagram according to an embodiment of this application;

[0021] Figure 2 is Figure 1 the installation schematic diagram of the end cover in the embodiment;

[0022] Figure 3 is Figure 1 the structural schematic diagram of the rotating ring in the embodiment;

[0023] Figure 4 is Figure 1 The partial enlarged view of the connecting part in the embodiment.

[0024] Reference numerals:

[0025] 100, motor housing; 101, end cover; 102, rotating ring; 103, baffle plate; 104, blocking block; 105, mounting protrusion; 106, heat dissipation groove; 107, annular groove; 108, arc-shaped through groove; 109, sealing groove; 110, flange; 111, connecting part; 112, sliding groove; 113, abutting part; 114, threaded hole; 115, bolt. Detailed implementation manners

[0026] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0027] In addition, it should be noted that for the sake of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0029] It should be noted that the modifications of "one" and "plural" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0030] Hereinafter, the present disclosure will be described in detail with reference to the drawings and in combination with the embodiments.

[0031] Refer to Figures 1-4, the motor end - cover sealing structure includes: a motor housing 100, an end - cover 101, a rotating ring 102, a shielding plate 103, and a shielding block 104. The end - cover 101 is fixedly arranged on one side of the motor housing 100. The end - cover 101 is provided with an installation protrusion 105 for installing on the motor housing 100. The installation protrusion 105 is provided with an installation hole, and a bolt 115 passes through the installation hole to install the end - cover 101. The end - cover 101 is provided with a plurality of circumferentially - distributed heat - dissipation grooves 106. An annular groove 107 is arranged on the outer wall of the end - cover 101, and the rotating ring 102 is rotatably arranged in the annular groove 107. A plurality of uniformly - distributed arc - shaped through - grooves 108 are arranged on the cylindrical wall of the annular groove. The rotating ring 102 shields the arc - shaped through - grooves 108 to ensure sealing.

[0032] In one embodiment, sealing grooves 109 are arranged on both side walls of the annular groove 107, and flanges 110 embedded in the sealing grooves 109 are arranged on the rotating ring 102. Sealing grease is filled in the gap between the flanges 110 and the sealing grooves 109 to ensure the sealing effect.

[0033] The rotating ring 102 is provided with a connecting portion 111 passing through the arc - shaped through - groove 108. A chute 112 is arranged at the lower end of the connecting portion 111. The shielding plate 103 is arranged inside the rotating ring 102. An abutting portion 113 is arranged at the outer edge of the shielding plate 103, and the abutting portion 113 is slidably arranged in the chute 112.

[0034] The connecting portion 111 slidably passes through the arc - shaped through - groove 108. When the rotating ring 102 rotates in the annular groove 107, the connecting portion 111 can move to both ends of the arc - shaped through - groove 108.

[0035] So that the shielding plate 103 can slide along the direction of the chute 112 and can rotate with the rotating ring 102 at the same time. The shielding blocks 104 are circumferentially - distributed and fixedly arranged on the shielding plate 103. The shielding blocks 104 are located on one side of the heat - dissipation grooves 106, and the projection on the end - cover 101 can cover the heat - dissipation grooves 106. The shielding plate 103 has a vacant area.

[0036] When the connecting portion 111 is at one end of the arc - shaped through - groove 108, the projection of the shielding block 104 on the end - cover 101 cannot cover the heat - dissipation grooves 106. When the connecting portion 111 is at the other end of the arc - shaped through - groove 108, the projection of the shielding block 104 on the end - cover 101 can cover the heat - dissipation grooves 106.

[0037] The connecting portion 111 is provided with a threaded hole 114 extending to the sliding groove 112. A bolt 115 is threadedly installed in the threaded hole 114. One end of the bolt 115 abuts against the abutting portion 113, and the side of the abutting portion 113 in contact with the bolt 115 is set as an inclined surface. The inclined surface of the abutting portion 113 is set as an inclined structure that is higher on the side closer to the end cover 101 and lower on the side farther from the end cover 101. When the bolt 115 is rotated so that one end of the bolt 115 abuts against the abutting portion 113, the shielding plate 103 is caused to approach the end cover 101 under the action of the inclined surface.

[0038] In one embodiment, when the bolt 115 is screwed to the lowest end of the threaded hole 114, the end of the bolt 115 abuts against the end cover 101 to fix the rotating ring 102.

[0039] In one embodiment, a rubber pad is provided on the side surface of the shielding block 104 closer to the end cover 101. When the shielding block 104 abuts against the end cover 101, the heat dissipation groove 106 is sealed by the rubber pad.

[0040] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. The sealing structure of the motor end cover is characterized by: include: A motor housing with an end cover mounted on one side; An end cover, wherein a heat dissipation slot for dissipating heat is circumferentially arranged on the end cover; A rotating ring, rotatably arranged on the end cover; A shielding component is arranged on the rotating ring; The occlusion components include: A shielding plate is arranged on the rotating ring; The shielding block is fixedly arranged on the shielding plate in the circumferential direction and is used for shielding the heat dissipation slot.

2. The motor end cover sealing structure according to claim 1, characterized in that: The end cover is provided with an annular groove for accommodating the rotating ring, and an arc-shaped through groove is opened on the cylindrical wall of the annular groove, and the rotating ring blocks the arc-shaped through groove.

3. The motor end cover sealing structure according to claim 2, characterized in that: The rotating ring is provided with a connecting portion passing through the arc-shaped through slot, a sliding slot is provided at the lower end of the connecting portion, and the shielding plate is fixedly connected to an abutting portion slidably arranged in the sliding slot.

4. The motor end cover sealing structure according to claim 3, characterized in that: The connection part is provided with a threaded hole extending to the slide groove, a bolt is threadedly installed on the threaded hole, one end of the bolt abuts against the abutment part, and the side of the abutment part in contact with the bolt is set as an inclined surface.

5. The motor end cover sealing structure according to claim 2, characterized in that: Sealing grooves are provided on both side walls of the annular groove, and flanges embedded in the sealing grooves are provided on the rotating ring.

6. The motor end cover sealing structure according to claim 1, characterized in that: A sealing rubber pad is arranged on a side of the shielding block close to the heat dissipation slot.

7. The motor end cover sealing structure according to claim 1, characterized in that: The end cover is provided with a mounting protrusion for mounting on the motor housing, the mounting protrusion is provided with a mounting hole, and the end cover is mounted by bolts passing through the mounting hole.

8. The motor end cover sealing structure according to claim 4, characterized in that: The inclined surface of the abutting portion is configured to be an inclined structure that is higher on a side close to the end cover and lower on a side away from the end cover.

9. The motor end cover sealing structure according to claim 1, characterized in that: The shielding plate and the end cover are both provided with through holes at the center thereof for the motor shaft to pass through.

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