Airing device for paint-dipped coil

By designing a coil varnish-drying device with a hot air circulation box and rotating disc structure, the problem of uneven coil drying was solved, achieving uniform drying and efficient production.

CN223540421UActive Publication Date: 2025-11-11ANHUI JUYIDE ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202423085783.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-11
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

The existing drying equipment has a fixed hot air outlet position, which results in uneven drying of the insulating varnish on the coil surface, affecting the overall drying efficiency.

Method used

Design a device for drying coils after impregnation with varnish. It adopts a hot air circulation box and a rotating disk structure. The rotating disk drives the impregnation frame to rotate synchronously, so as to achieve uniform distribution of hot air. Combined with the receiving tray, it prevents the insulating varnish from dripping and improves the drying efficiency.

Benefits of technology

This method achieves uniform drying of the coils, improves drying efficiency, prevents insulating varnish from dripping, and enhances production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The drying device comprises a hot air circulation box, the bottom of an inner cavity of the hot air circulation box is rotationally connected with a rotating disc, the top of the rotating disc is detachably provided with a base plate, three supporting columns are welded to the rear side of the top of the base plate, and a plurality of mounting hoops are welded to the surfaces of the supporting columns; the installation hoops are arranged in order up and down, and the inner cavities of the installation hoops are detachably provided with the paint dipping frames. The coils are placed in the inner cavities of the paint dipping frames for paint dipping, then the paint dipping frames are placed in the inner cavities of the installation hoops one by one, the base plate is pushed to the top of the rotating disc, the coils in the paint dipping frames are driven to rotate synchronously through rotation of the rotating disc, and therefore the purpose of evenly airing and drying the coils is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of motor coil processing technology, and in particular relates to a device for drying coils after impregnation with varnish. Background Technology

[0002] The motor coil is the most vulnerable component in the motor structure. In order to improve the moisture resistance, corrosion resistance, and insulation strength of the motor coil, as well as improve its mechanical strength, thermal conductivity, heat dissipation effect, and delay aging, the shaped motor coil must be impregnated with varnish and dried.

[0003] After impregnating the coil with varnish in a vacuum impregnation oven, a drying device is usually used to accelerate the drying efficiency of the coil in order to shorten the drying time. Since the hot air outlet of the drying device is fixed, the insulating varnish on the surface of the coil near the air outlet dries quickly, while the insulating varnish far from the air outlet dries more slowly, thus affecting the overall drying efficiency. Therefore, it is necessary to design a coil impregnation drying device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a device for drying coils after varnishing, which has the advantage of uniformly drying the coils, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A coil varnish-drying device, which includes a hot air circulation box: a rotating disk is rotatably connected to the bottom of the inner cavity of the hot air circulation box, a base is detachably installed on the top of the rotating disk, three support columns are welded to the rear side of the top of the base, multiple mounting hoops are welded to the surface of the support columns, the mounting hoops are neatly arranged vertically, and an varnish-drying frame is detachably installed in the inner cavity of the mounting hoops.

[0006] Preferably, the top of the paint-impregnated frame is welded with an anti-detachment ring that works in conjunction with the mounting hoop, and handles are installed on both the left and right sides of the top of the anti-detachment ring.

[0007] Preferably, a receiving tray is installed on the top of the chassis, and an installation groove for use with the receiving tray is opened on the top of the chassis. The diameter of the receiving tray is larger than the diameter of the impregnation frame.

[0008] Preferably, the bottom of the chassis is equipped with multiple pulleys, and the top of the rotating disk is provided with a slot for cooperating with the pulleys.

[0009] Preferably, a ramp is installed at the bottom of the front side of the hot air circulation box.

[0010] Preferably, the surface of the support column is provided with a handle groove.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model involves immersing the coil in the inner cavity of the immersion frame for immersion, then placing the immersion frames one by one in the inner cavity of the mounting hoop and pushing the base plate to the top of the rotating disk. The rotation of the rotating disk drives the coil in the immersion frame to rotate synchronously, thereby achieving the purpose of evenly drying the coil.

[0013] 2. This utility model, through the setting of the receiving tray, can receive the insulating varnish dripping from the coil after impregnation, and prevent the insulating varnish from dripping onto the surface of the base plate;

[0014] 3. By using multiple mounting clamps, this utility model can dry a large number of coils at once, thus improving drying efficiency. Attached Figure Description

[0015] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0016] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0017] Figure 2 This is a partial three-dimensional disassembled schematic diagram of one embodiment of the present invention.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Hot air circulation box, 2. Rotary disc, 3. Chassis, 4. Support column, 5. Impregnation frame, 6. Mounting hoop, 7. Anti-detachment ring, 8. Receiving tray, 9. Mounting groove, 10. Pulley, 11. Slot, 12. Ramp. Detailed Implementation

[0020] In the following description, embodiments of the coil varnish-impregnated and dried device of the present invention will be described with reference to the accompanying drawings.

[0021] Figure 1-2This invention illustrates a coil varnish-drying device according to an embodiment of the present invention. It includes a hot air circulation box 1. A rotating disk 2 is rotatably connected to the bottom of the inner cavity of the hot air circulation box 1. A base 3 is detachably mounted on the top of the rotating disk 2. Three support columns 4 are welded to the rear side of the top of the base 3. Multiple mounting hoops 6 are welded to the surface of the support columns 4. The mounting hoops 6 are arranged neatly vertically. By using multiple mounting hoops 6, a larger number of coils can be dried at once, improving drying efficiency. A varnish-drying frame 5 is detachably mounted inside the inner cavity of the mounting hoops 6. A protective device for use with the mounting hoops 6 is welded to the top of the varnish-drying frame 5. The anti-loosening ring 7 has handles installed on both the left and right sides of its top. The top of the chassis 3 has a receiving tray 8, and the top of the chassis 3 has an installation groove 9 that works with the receiving tray 8. The diameter of the receiving tray 8 is larger than the diameter of the impregnation frame 5. The receiving tray 8 can be used to catch the insulating varnish dripping from the coil after impregnation, preventing the insulating varnish from dripping onto the surface of the chassis 3. The bottom of the chassis 3 has multiple pulleys 10, and the top of the rotating disk 2 has a slot 11 that works with the pulleys 10. The bottom of the front side of the hot air circulation box 1 has a ramp 12, and the surface of the support column 4 has a handle groove.

[0022] Working principle: When using this utility model, the user places the coil into the inner cavity of the varnish-impregnating frame 5 and impregnates it. Then, the varnish-impregnating frames 5 are placed one by one into the inner cavity of the mounting clamp 6, thereby locking the varnish-impregnating frames 5 on the top of the base plate 3. Then, the user holds the handle groove in the support column 4 and pushes the base plate 3, thereby pushing the base plate 3 into the inner cavity of the slot 11 in the rotating disk 2, locking the base plate 3 on the top of the rotating disk 2. The rotation of the rotating disk 2 drives the coil in the varnish-impregnating frame 5 to rotate synchronously, so that the air outlet on the left side of the inner cavity of the hot air circulation box 1 can evenly dry or bake the coil in the varnish-impregnating frame 5, thereby achieving the purpose of evenly drying the coil.

[0023] In summary, this coil varnish-impregnation and drying device works by immersing the coil in the inner cavity of the varnish-impregnation frame 5, then placing the varnish-impregnation frames 5 one by one into the inner cavity of the mounting hoop 6 and pushing the base plate 3 to the top of the rotating disk 2. The rotation of the rotating disk 2 drives the coil in the varnish-impregnation frame 5 to rotate synchronously, thereby achieving the purpose of uniformly drying the coil.

Claims

1. A device for drying coils after varnish impregnation, characterized in that, Includes a hot air circulation box (1): the bottom of the inner cavity of the hot air circulation box (1) is rotatably connected to a rotating disk (2), the top of the rotating disk (2) is detachably mounted with a chassis (3), three support columns (4) are welded to the rear side of the top of the chassis (3), multiple mounting hoops (6) are welded to the surface of the support columns (4), the mounting hoops (6) are neatly arranged vertically, and an impregnated frame (5) is detachably mounted in the inner cavity of the mounting hoop (6).

2. The coil varnish-impregnation and drying device according to claim 1, characterized in that, The top of the paint-impregnated frame (5) is welded with an anti-detachment ring (7) that works in conjunction with the mounting hoop (6), and handles are installed on both the left and right sides of the top of the anti-detachment ring (7).

3. The coil varnish-impregnated and dried device according to claim 2, characterized in that, The top of the chassis (3) is equipped with a receiving tray (8), and the top of the chassis (3) has an installation groove (9) that works with the receiving tray (8). The diameter of the receiving tray (8) is larger than the diameter of the impregnation frame (5).

4. The coil varnish-impregnated and dried device according to claim 3, characterized in that, The bottom of the chassis (3) is equipped with multiple pulleys (10), and the top of the rotating disk (2) is provided with a slot (11) that works with the pulleys (10).

5. The coil varnish-impregnated drying device according to claim 4, characterized in that, A ramp (12) is installed at the bottom of the front side of the hot air circulation box (1).

6. The coil varnish-impregnated drying device according to claim 5, characterized in that, The surface of the support column (4) is provided with a handle groove.