Excitation transformer with waterproof structure
By designing a waterproof top plate and water guide plate structure on the excitation transformer, combined with heat dissipation copper pipes and heat dissipation plates, the problem of rainwater intrusion into the excitation transformer in the field environment is solved, achieving the dual effect of waterproofing and heat dissipation, and ensuring the stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHIJIANG MANGTANG WATER CONSERVANCY & HYDROPOWER DEV CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing excitation transformers lack waterproof design, making them susceptible to rainwater intrusion in outdoor environments, leading to corrosion and equipment failure, and affecting stable operation.
An excitation transformer with a waterproof structure was designed, including a waterproof top plate and a water guide plate, which are fixed to the top of the device by a support shaft to prevent rainwater from entering and to guide rainwater out through a sloping design. At the same time, heat dissipation copper pipes and heat dissipation plates are used for effective heat dissipation.
It effectively prevents rainwater from entering the device, avoids corrosion and short circuits, ensures stable operation of the equipment, and avoids safety issues caused by overheating through the heat dissipation mechanism.
Smart Images
Figure CN224287916U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excitation transformer technology, and in particular to an excitation transformer with a waterproof structure. Background Technology
[0002] An excitation transformer is a transformer specifically designed to provide excitation power to electrical equipment, primarily used in the excitation systems of synchronous generators and other similar devices. It converts alternating current (AC) into direct current (DC) to supply the excitation windings of the generator or transformer, maintaining its magnetic field and thus ensuring the normal operation of the equipment. Excitation transformers are widely used in power plants, substations, and other similar applications, and are particularly crucial for the stability of power systems. They can adjust the output voltage according to load changes, ensuring the reliability and stability of equipment under different operating conditions.
[0003] The working principle of an excitation transformer is to convert alternating current (AC) to direct current (DC) to provide the required current for the excitation system of a synchronous generator or other equipment. Its basic structure includes a primary winding and a secondary winding. AC power is connected to the primary winding, and through magnetic field induction, current is generated in the secondary winding. The secondary winding outputs rectified DC power, which is used to excite the generator's excitation winding, generating a stable magnetic field to maintain the generator's normal operation. The working principle of the excitation transformer allows it to automatically adjust the output current according to the system load, ensuring the stability of power equipment and the normal operation of the power grid.
[0004] In existing technologies, some excitation transformers lack effective waterproofing designs, making them susceptible to the effects of harsh weather when operating in the field, especially as rainwater can easily seep into the device. Rainwater intrusion not only causes corrosion inside the transformer and reduces insulation performance, but can also lead to short circuits or equipment failures, affecting the stable operation of the transformer. Therefore, an excitation transformer with a waterproof structure is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an excitation transformer with a waterproof structure, aiming to improve the problem that existing excitation transformers lack waterproof mechanisms, have not been structurally optimized for outdoor environments, and cannot resist rainwater intrusion.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an excitation transformer with a waterproof structure, including a base, a waterproof mechanism fixedly connected to the top of the base, an installation block fixedly connected to the top of the base, a device body fixedly connected inside the installation block, and a heat dissipation mechanism fixedly connected inside the installation block.
[0007] The waterproof mechanism includes four support shafts, the bottom of the four support shafts is fixedly connected to the top of the base, the top of the four support shafts is fixedly connected to a waterproof top plate, a water guide plate is fixedly connected to the outside of the waterproof top plate, and a waterproof groove is opened inside the waterproof top plate.
[0008] As a further description of the above technical solution: the heat dissipation mechanism includes multiple heat dissipation plates, the exterior of the multiple heat dissipation plates is fixedly connected to the interior of the mounting block, the multiple heat dissipation plates are in contact with the exterior of the device body, and heat dissipation copper pipes are fixedly connected to the interior of the multiple heat dissipation plates;
[0009] As a further description of the above technical solution: a cover plate is fixedly connected to the top of the mounting block, six cable outlets are fixedly connected to the top of the cover plate, and five cable interfaces are fixedly connected to the top of the cover plate.
[0010] As a further description of the above technical solution: the waterproof top plate has multiple through holes on its left and right sides, the top of the water guide plate is designed with a slope, and the through holes are located at the bottom of the water guide plate;
[0011] As a further description of the above technical solution: the mounting block has a mounting groove inside, and the device body is fixedly connected to the inside of the mounting groove.
[0012] As a further description of the above technical solution: a cavity is provided between the outer side of the device body and the inner wall of the mounting block, and the heat dissipation copper pipe is located inside the cavity;
[0013] As a further description of the above technical solution: the heat dissipation copper pipe is located outside the device body and coils around it, and the heat dissipation copper pipe mostly passes through the interior of the heat dissipation plate;
[0014] As a further description of the above technical solution: the top of the mounting block is provided with an auxiliary mounting block, and the top of the auxiliary mounting block is in contact with the bottom of the cover plate.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, when the device is operating in the field, the waterproof top plate fixed to the top of the device by four support shafts provides waterproof function for the device, thereby preventing external rainwater from falling on the outside of the device and allowing rainwater to enter the inside of the device through the gaps, thereby reducing the safety of the device. In addition, the water outlets opened on the left and right sides of the waterproof top plate guide the rainwater out, thereby preventing rainwater from accumulating and affecting the waterproof effect.
[0017] 2. In this utility model, during the operation of the device, the heat generated by the device body during operation is absorbed by multiple heat dissipation plates that are in contact with the device body. During this process, the heat dissipation copper pipes fixed inside the multiple heat dissipation plates act as heat transfer components, so that the multiple heat dissipation plates evenly dissipate the heat from the device, thereby avoiding overload of the device due to excessive temperature and thus preventing safety issues. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the excitation transformer with a waterproof structure proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the waterproof top plate of the excitation transformer with a waterproof structure proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the line interface of the excitation transformer with a waterproof structure proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the heat sink of the excitation transformer with a waterproof structure proposed in this utility model.
[0022] Legend:
[0023] 1. Base; 2. Mounting block; 3. Cover plate; 4. Outlet terminal; 5. Heat sink plate; 6. Copper heat sink pipe; 7. Support shaft; 8. Waterproof top plate; 9. Water guide plate; 10. Cable interface; 11. Device body. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1 to 3An embodiment of this utility model provides: an excitation transformer with a waterproof structure, including a base 1, which is the support and base of the entire excitation transformer and serves to support the equipment. A waterproof mechanism is fixedly connected to the top of the base 1. The waterproof mechanism is designed to prevent moisture, rainwater and other external moisture from entering the interior of the excitation transformer and protect the transformer from moisture damage. A mounting block 2 is fixedly connected to the top of the base 1. A device body 11 is fixedly connected inside the mounting block 2. The device body 11 is fixedly connected inside the mounting block 2 and serves to support the main body of the equipment. A heat dissipation mechanism is fixedly connected inside the mounting block 2. An installation groove is opened inside the mounting block 2. The device body 11 is fixedly connected to the outside of the installation groove.
[0026] The waterproof mechanism includes four support shafts 7, the bottom of which is fixedly connected to the top of the base 1 to provide support. A waterproof top plate 8 is fixedly connected to the top of the four support shafts 7, and a water guide plate 9 is fixedly connected to the top of the waterproof top plate 8. The waterproof top plate 8 serves to shield and guide water flow. The water guide plate 9 is fixedly connected to the outside of the waterproof top plate 8. The top of the water guide plate 9 is sloped to allow water to drain smoothly without accumulating on the equipment. A waterproof groove is provided inside the waterproof top plate 8, and multiple through holes are provided on the left and right sides of the waterproof top plate 8 to facilitate water drainage and prevent rainwater accumulation on the top, thereby improving the waterproof effect. The top of the water guide plate 9 is sloped, and the through holes are located at the bottom of the water guide plate 9.
[0027] Reference Figures 2 to 4 The heat dissipation mechanism includes multiple heat dissipation plates 5. As the main heat dissipation component, the heat dissipation plates 5 transfer heat to the surrounding environment through contact with the outside of the device body 11. The outside of the multiple heat dissipation plates 5 is fixedly connected to the inside of the mounting block 2. At the junction of the multiple heat dissipation plates 5 and the outside of the device body 11, heat dissipation copper pipes 6 are fixedly connected inside the multiple heat dissipation plates 5. The high thermal conductivity of the heat dissipation copper pipes 6 can help heat to be quickly conducted from the device body 11 to the heat dissipation plates 5, and then released into the air through the heat dissipation plates 5. A cavity is provided between the outside of the device body 11 and the inner wall of the mounting block 2. The cavity provides sufficient space for the heat dissipation copper pipes 6, so that the heat dissipation copper pipes 6 can effectively coil and achieve a larger heat exchange area. The heat dissipation copper pipes 6 are located inside the cavity and coiled outside the device body 11. The heat dissipation copper pipes 6 mostly pass through the inside of the heat dissipation plates 5.
[0028] A cover plate 3 is fixedly connected to the top of the mounting block 2. The cover plate 3 is fixedly connected to the top of the mounting block 2 and is mainly used to enclose other components inside the device and provide additional protection. Six cable outlets 4 are fixedly connected to the top of the cover plate 3. The cable outlets 4 are used to connect to external circuits and transmit the electrical energy of the device to other systems or devices. Five wire interfaces 10 are fixedly connected to the top of the cover plate 3. The wire interfaces 10 provide interfaces for the electrical connection of the device and facilitate the connection and disconnection of external cables. An auxiliary mounting block 2 is provided on the top of the mounting block 2. The top of the auxiliary mounting block 2 is in contact with the bottom of the cover plate 3.
[0029] Working principle: The high-pressure and low-pressure interfaces are connected to the wire interface 10 fixed on the top of the cover plate 3 to complete the installation. When the device is running in the field, the waterproof top plate 8 fixed to the top of the device by four support shafts 7 provides waterproof function, thereby preventing external rainwater from falling on the outside of the device and allowing rainwater to enter the inside of the device through the gaps, thereby reducing the safety of the device. The water outlets on the left and right sides of the waterproof top plate 8 guide the rainwater out, thereby preventing rainwater from accumulating and affecting the waterproof effect. The water guide plate 9 fixed on the outside of the waterproof top plate 8 guides the rainwater with a unique sloping design, further improving the waterproof effect.
[0030] During operation, the heat generated by the device body 11 during operation is absorbed by multiple heat dissipation plates 5 that are in contact with the device body 11. During this process, the heat dissipation copper pipes 6 fixed inside the multiple heat dissipation plates 5 act as heat transfer components, so that the multiple heat dissipation plates 5 can evenly dissipate heat from the device, thereby preventing the device from overloaded due to excessive temperature and thus causing safety problems.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An excitation transformer with a waterproof structure, comprising a base (1), characterized in that: A waterproof mechanism is fixedly connected to the top of the base (1), and an installation block (2) is fixedly connected to the top of the base (1). A device body (11) is fixedly connected inside the installation block (2), and a heat dissipation mechanism is fixedly connected inside the installation block (2). The waterproof mechanism includes four support shafts (7), the bottom of the four support shafts (7) is fixedly connected to the top of the base (1), the top of the four support shafts (7) is fixedly connected to a waterproof top plate (8), a water guide plate (9) is fixedly connected to the outside of the waterproof top plate (8), and a waterproof groove is opened inside the waterproof top plate (8).
2. The excitation transformer with a waterproof structure according to claim 1, characterized in that: The heat dissipation mechanism includes multiple heat dissipation plates (5), the exterior of the multiple heat dissipation plates (5) is fixedly connected to the interior of the mounting block (2), the multiple heat dissipation plates (5) are in contact with the exterior of the device body (11), and heat dissipation copper pipes (6) are fixedly connected to the interior of the multiple heat dissipation plates (5).
3. The excitation transformer with a waterproof structure according to claim 1, characterized in that: The top of the mounting block (2) is fixedly connected to a cover plate (3), the top of the cover plate (3) is fixedly connected to six outlet terminals (4), and the top of the cover plate (3) is fixedly connected to five wire interfaces (10).
4. The excitation transformer with a waterproof structure according to claim 1, characterized in that: The waterproof top plate (8) has multiple through holes on its left and right sides. The top of the water guide plate (9) is designed with a slope, and the through holes are located at the bottom of the water guide plate (9).
5. The excitation transformer with a waterproof structure according to claim 1, characterized in that: The mounting block (2) has an internal mounting groove, and the device body (11) is externally fixedly connected to the inside of the mounting groove.
6. The excitation transformer with a waterproof structure according to claim 2, characterized in that: The outer side of the device body (11) and the inner wall of the mounting block (2) are provided with a cavity, and the heat dissipation copper pipe (6) is located inside the cavity.
7. The excitation transformer with a waterproof structure according to claim 2, characterized in that: The heat dissipation copper pipe (6) is located outside the device body (11) and is coiled. The heat dissipation copper pipe (6) passes through the interior of the heat dissipation plate (5).
8. The excitation transformer with a waterproof structure according to claim 3, characterized in that: The top of the mounting block (2) is provided with an auxiliary mounting block, and the top of the auxiliary mounting block is in contact with the bottom of the cover plate (3).