A motor winding protection cover

Abstract

This utility model relates to the field of motor technology and discloses a motor winding protective cover, including an outer ring and an inner ring located inside the outer ring and concentrically arranged with respect to the outer ring; a top plate, the bottom surface of which is fixedly connected to the top of the outer ring and the inner ring respectively, and the top plate is arc-shaped; a junction box, fixedly connected to the upper side of the outer ring, the junction box having evenly distributed and independent wire outlet holes inside; a fixed platform and a movable platform, fixedly connected to the front of the junction box, the movable platform being located above the fixed platform and movably connected to the fixed platform, and the movable platform having an annular groove inside corresponding to the position of the wire outlet hole. In this utility model, by setting up a junction box, a fixed platform, and a movable platform, a multi-layer sealing effect is achieved at the wire outlet, avoiding the problem of rainwater seepage due to poor sealing of the junction box in rainy areas.

Description

Technical Field

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

[0002] Motor windings are structures in a motor consisting of conductive coils arranged in a specific pattern for electromagnetic energy conversion. They are usually made of conductive materials (such as copper wire) and wound around the motor's iron core according to certain rules and methods. Motor winding protective covers are components used to protect motor windings and are usually installed at the ends of the motor stator iron core.

[0003] The drive motors in existing substations and distribution boxes may be exposed to outdoor or semi-outdoor environments. In areas with frequent rain, they may be exposed to humid air and be corroded by rainwater for a long time. If the wiring ports of the protective cover are not properly sealed, rainwater can easily seep in, causing the motor windings to become damp, the insulation performance to deteriorate, and even short circuits.

[0004] To address these issues, we provide a motor winding protection cover. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a motor winding protection cover to address the issue that drive motors in existing substations and distribution boxes may be exposed to outdoor or semi-outdoor environments. In areas with frequent rainfall, they may be exposed to humid air and be corroded by rainwater for a long time. If the wiring port of the protection cover is not properly sealed, rainwater can easily seep in, causing the motor windings to become damp, the insulation performance to decline, and even short circuits.

[0006] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0007] A motor winding protective cover includes: an outer ring, and an inner ring located inside the outer ring and co-centered with the outer ring;

[0008] The top plate and bottom surface are respectively fixedly connected to the top of the outer ring and the inner ring, and the top plate is arc-shaped;

[0009] A junction box is fixedly connected to the upper side of the outer ring, and the junction box has evenly distributed and independent cable outlet holes inside;

[0010] A fixed platform and a movable platform are fixedly connected to the front of the junction box. The movable platform is located above the fixed platform and is movably connected to the fixed platform. The fixed platform and the movable platform have annular grooves inside that correspond to the positions of the cable outlet holes.

[0011] Furthermore, the outer ring, inner ring, and top plate combine to form an internal cavity for protecting the motor windings.

[0012] Furthermore, a fixing foot that is fixedly connected to the stator core is fixedly connected to the bottom of the outer ring, and a sealing ring is connected around the bottom of the inner side of the outer ring.

[0013] Furthermore, a conical sealing ring is connected inside the outlet hole, with the smaller end of the conical sealing ring located on the outside of the junction box.

[0014] Furthermore, a fixing block is fixedly connected to the upper surface of the fixed platform, and a connecting block is provided at the bottom of the movable platform. The connecting block is connected to the interior of the fixing block through a movable shaft.

[0015] Furthermore, rubber rings are fixedly connected in the annular grooves inside both the fixed platform and the movable platform.

[0016] Furthermore, connecting platform one and connecting platform two are fixedly connected to the other side of the fixed platform and the movable platform, respectively. Connecting platform one and connecting platform two have grooves inside and are fixed with screws.

[0017] Furthermore, a lower tube sleeve body is fixedly connected to the outer surface of the fixed platform at the corresponding annular groove, and an upper tube sleeve body is fixedly connected to the outer surface of the movable platform at the corresponding annular groove. The lower tube sleeve body and the upper tube sleeve body have the same diameter and fit together.

[0018] Furthermore, the diameters of the lower sleeve body and the upper sleeve body are slightly larger than the diameters of the annular grooves in the fixed platform and the movable platform.

[0019] This utility model provides a protective cover for motor windings. Compared with the prior art, it has the following advantages:

[0020] 1. By setting up junction boxes, fixed platforms, and movable platforms, the junction boxes seal the wiring ports, and the conical sealing rings in the junction boxes individually seal multiple wires. The fixed platforms and movable platforms then provide a secondary seal at the wire outlets, achieving a multi-layered sealing effect at the wire outlets. This prevents rainwater from seeping into the protective cover in rainy areas due to poor sealing of the junction boxes.

[0021] 2. By setting up a lower sleeve body and an upper sleeve body, after the line leads out of the protective cover, the lower sleeve body and the upper sleeve body are joined together, guiding the line to bend downwards, avoiding the problem of rainwater flowing back along the line to the junction box at the joint, effectively improving the sealing effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the junction box structure of this utility model.

[0025] Figure 4 This is a cross-sectional view of the junction box of this utility model.

[0026] Figure 5 This is a structural diagram of the fixing platform of this utility model.

[0027] The attached figures are labeled as follows:

[0028] 1. Outer ring; 2. Inner ring; 3. Top plate; 4. Inner cavity; 5. Fixing foot; 6. Sealing ring; 7. Junction box; 701. Outlet hole; 702. Conical sealing ring; 8. Fixing platform; 801. Fixing block; 802. Movable shaft; 803. Connecting platform one; 9. Movable platform; 901. Connecting block; 902. Connecting platform two; 10. Rubber ring; 11. Screw; 12. Lower sleeve body; 13. Upper sleeve body. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0031] Reference Figures 1-2 A motor winding protective cover is provided, including an outer ring 1, an inner ring 2 located inside the outer ring 1 and arranged with the same center as the outer ring 1, a top plate 3, and a bottom surface that is fixedly connected to the top of the outer ring 1 and the inner ring 2 respectively, and the top plate 3 is arc-shaped.

[0032] The outer ring 1, inner ring 2 and top plate 3 are combined to form an inner cavity 4 for protecting the motor windings.

[0033] The bottom of the outer ring 1 is fixedly connected to a fixing foot 5 that is connected to the stator core, and a sealing ring 6 is connected around the bottom of the inner side of the outer ring 1.

[0034] The motor windings are protected by the inner cavity 4 inside the outer ring 1, inner ring 2 and top plate 3. The protective cover is connected to the stator core through the fixing foot 5 in the outer ring 1. The top plate 3 is arc-shaped and can guide the water flow to drain quickly along the curved surface under the action of gravity, preventing water from accumulating on the top plate 3. The sealing ring 6 is V-shaped and can be used for guidance during installation. At the same time, the sealing ring 6 is used to prevent water vapor from entering through the interface between the protective cover and the stator core.

[0035] Reference Figures 3-5 It includes a junction box 7, which is fixedly connected to the upper side of the outer ring 1. The junction box 7 has evenly distributed and independent cable outlet holes 701 inside. A fixed platform 8 and a movable platform 9 are fixedly connected to the front of the junction box 7. The movable platform 9 is located above the fixed platform 8 and is movably connected to the fixed platform 8. The fixed platform 8 and the movable platform 9 have annular grooves inside that correspond to the positions of the cable outlet holes 701.

[0036] Specifically, a conical sealing ring 702 is connected inside the outlet hole 701. The smaller end of the conical sealing ring 702 is located outside the junction box 7. A fixing block 801 is fixedly connected to the upper surface of the fixing platform 8. A connecting block 901 is provided at the bottom of the movable platform 9. The connecting block 901 is connected to the inside of the fixing block 801 through the movable shaft 802.

[0037] Rubber rings 10 are fixedly connected in the annular grooves inside the fixed platform 8 and the movable platform 9. Connecting platform 1 803 and connecting platform 2 902 are fixedly connected to the other side of the fixed platform 8 and the movable platform 9 respectively. Connecting platform 1 803 and connecting platform 2 902 have holes and grooves inside and are fixed by screws 11.

[0038] The lower tube sleeve body 12 is fixedly connected to the outer surface of the fixed platform 8 at the corresponding annular groove, and the upper tube sleeve body 13 is fixedly connected to the outer surface of the movable platform 9 at the corresponding annular groove. The lower tube sleeve body 12 and the upper tube sleeve body 13 have the same diameter and fit together. The diameter of the lower tube sleeve body 12 and the upper tube sleeve body 13 is slightly larger than the diameter of the annular groove in the fixed platform 8 and the movable platform 9.

[0039] Junction box 7 has a separate cable outlet 701, which can organize and protect different cables. The conical sealing ring 702 inside the cable outlet produces a certain elastic deformation in the axial and radial directions, so as to fit tightly against the contact surface of the cable and ensure a good sealing effect. When passing through the cable, the bottom of the cable contacts the annular groove inside the fixed platform 8. Under the action of the movable shaft 802, the movable platform 9 is rotated so that the annular groove inside the movable platform 9 contacts the upper part of the cable. The fixed platform 8 and the movable platform 9 are tightened with screws 11 until the cable is secure. The rubber ring 10 inside the fixed platform 8 and the movable platform 9 can seal the cable again. When the movable platform 9 is connected to the fixed platform 8, the lower sleeve body 12 and the upper sleeve body 13 are engaged to guide the cable and make the cable bend downward, preventing rainwater from flowing back to the junction box along the cable.

[0040] Working principle: The protective cover is connected to the stator core via the fixing foot 5 in the outer ring 1. The top plate 3 is arc-shaped, which guides water flow to drain quickly along the curved surface under gravity, preventing water from accumulating on the top plate 3. The sealing ring 6 is V-shaped, which guides the water during installation and prevents moisture from entering through the interface between the protective cover and the stator core. The junction box 7 has a separate cable outlet 701, which can organize and protect different wires. The conical sealing ring 702 inside the cable outlet produces a certain amount of elastic deformation in the axial and radial directions, thus tightly fitting the contact surface of the wire. To ensure a good sealing effect, when the wire passes through, the bottom contacts the annular groove inside the fixed platform 8. Under the action of the movable shaft 802, the movable platform 9 is rotated so that the annular groove inside the movable platform 9 contacts the upper part of the wire. The fixed platform 8 and the movable platform 9 are tightened with screws 11 until the wire is secure. The rubber ring 10 inside the fixed platform 8 and the movable platform 9 can seal the wire again. When the movable platform 9 is connected to the fixed platform 8, the lower tube sleeve body 12 and the upper tube sleeve body 13 are engaged to guide the wire and make the wire bend downward, preventing rainwater from flowing back to the connection port along the cable.

[0041] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. An electrical machine winding protection cover, characterized in that, include: Outer ring (1), and inner ring (2) located inside the outer ring (1) and co-centered with the outer ring (1); The top plate (3) is fixedly connected to the top of the outer ring (1) and the inner ring (2) respectively, and the top plate (3) is arc-shaped; Junction box (7) is fixedly connected to the upper side of the outer ring (1), and the junction box (7) is provided with evenly distributed and independent wire outlet holes (701); The fixed platform (8) and the movable platform (9) are fixedly connected to the front of the junction box (7). The movable platform (9) is located above the fixed platform (8) and is movably connected to the fixed platform (8). The fixed platform (8) and the movable platform (9) have annular grooves inside that correspond to the position of the cable outlet (701).

2. A motor winding protection cover according to claim 1, characterized in that The outer ring (1), inner ring (2) and top plate (3) are combined to form an inner cavity (4) for protecting the motor windings.

3. A motor winding protection cover according to claim 1, characterized in that The bottom of the outer ring (1) is fixedly connected to a fixed foot (5) that is connected to the stator core, and a sealing ring (6) is connected around the bottom of the inner side of the outer ring (1).

4. A motor winding protection cover according to claim 1, characterized in that The outlet hole (701) is internally connected to a conical sealing ring (702), and the smaller end of the conical sealing ring (702) is located outside the junction box (7).

5. A motor winding protection cover according to claim 1, wherein A fixing block (801) is fixedly connected to the upper surface of the fixed platform (8), and a connecting block (901) is provided at the bottom of the movable platform (9). The connecting block (901) is connected to the interior of the fixing block (801) through a movable shaft (802).

6. A motor winding protection cover according to claim 5, wherein Rubber rings (10) are fixedly connected in the annular grooves inside both the fixed platform (8) and the movable platform (9).

7. A motor winding protection cover according to claim 6, characterised in that The fixed platform (8) and the movable platform (9) are respectively fixedly connected to the other side of the connecting platform one (803) and the connecting platform two (902). The connecting platform one (803) and the connecting platform two (902) are provided with holes and grooves inside and are fixed by screws (11).

8. A motor winding protection cover according to claim 1, characterized in that The lower tube sleeve body (12) is fixedly connected to the outer surface of the fixed platform (8) at the corresponding annular groove, and the upper tube sleeve body (13) is fixedly connected to the outer surface of the movable platform (9) at the corresponding annular groove. The lower tube sleeve body (12) and the upper tube sleeve body (13) have the same diameter and fit together.

9. A motor winding protection cover according to claim 8, characterised in that, The diameter of the lower sleeve body (12) and the upper sleeve body (13) is slightly larger than the diameter of the annular groove in the fixed platform (8) and the movable platform (9).

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