Dry-type distribution transformer core clamping frame
By designing clamping and heat dissipation devices, the problems of complex clamping structure and uneven heat dissipation of dry-type distribution transformer cores are solved, achieving stable clamping and efficient heat dissipation of the cores, and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANTAO JULITONG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional dry-type distribution transformers have complex core clamping structures, and silicon steel sheets are prone to shifting and loosening, resulting in poor stability, high noise, and easy surface corrosion, which increases losses and causes safety hazards.
The iron core is clamped and fixed using components such as an upper fixing plate, bolts, and locking rods in the clamping device, and uniform heat dissipation is achieved through heat-conducting plates and heat dissipation plates in the heat dissipation device, ensuring the stability and efficient heat dissipation of the iron core.
It achieves a firm clamping of the iron core, preventing loosening and falling off, improving stability and safety, while effectively reducing temperature and extending service life.
Smart Images
Figure CN224366640U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamping technology, and in particular relates to a clamping frame for the core of a dry-type distribution transformer. Background Technology
[0002] Traditional dry-type distribution transformers have complex core clamping structures, and silicon steel sheets are prone to shifting and loosening, resulting in poor core stability and high noise. At the same time, the surface is prone to corrosion and damage, increasing core losses and causing safety hazards.
[0003] According to a public disclosure (publication number: CN102360773A), a dry-type distribution transformer core clamping frame includes an upper clamping plate and a lower clamping plate, which are connected by a long screw. The upper and lower clamping plates include a left and a right elongated pressure plate, with their ends connected by a threaded rod. Epoxy fiberglass sleeves are installed on both the long screw and the threaded rod. The left and right elongated pressure plates are also coated with insulating varnish. Due to the adoption of the above technical solution, the invention has the advantages of simple structure, convenient use, easy securing of the high-voltage core, reduced noise during subsequent use, and improved surface stability and corrosion resistance. The processing is simple, shortens processing time, and improves production efficiency and safety performance.
[0004] In the aforementioned application, the core of the dry-type distribution transformer is clamped and fixed by the cooperation of the long screw and the lead screw. However, the clamping effect and convenience of this clamping frame still need to be improved. Moreover, the structure is too complicated, the cost is high, and the practicality is not strong. Therefore, we propose a clamping frame for the core of the dry-type distribution transformer. Utility Model Content
[0005] The purpose of this utility model is to provide a clamping bracket for the core of a dry-type distribution transformer. When it is necessary to clamp and fix the core of a dry-type distribution transformer, the clamping device is first installed on the side of the core. By rotating bolt one and bolt two, the upper fixing plate one and upper fixing plate two are clamped and fixed on both sides. At the same time, locking rod one and locking rod two, through the action of locking sleeve column one and locking sleeve column two, further securely clamp the core. In addition, the setting of lifting ring one and lifting ring two facilitates the lifting and movement of this utility model by workers using external lifting equipment, improving the convenience of use and solving existing problems.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a clamping frame for the core of a dry-type distribution transformer, including a core, with windings arranged on the outer side of the core and a clamping device arranged on the side of the core.
[0008] The clamping device includes an upper fixing plate 1, which is disposed on the top of the winding. A bolt 1 passes through the side of the upper fixing plate 1, and an upper fixing plate 2 passes through the circumferential surface of the bolt 1. A locking rod 1 is fixedly connected to the bottom of the upper fixing plate 1, and a locking rod 2 is fixedly connected to the bottom of the upper fixing plate 2. A locking sleeve 1 is threadedly connected to the circumferential surface of the locking rod 1, and a bottom locking plate 1 is threadedly connected to the inner circumferential surface of the locking sleeve 1. A lower fixing plate 1 is fixedly connected to the bottom of the bottom locking plate 1, and a bolt 2 passes through the side of the lower fixing plate 1. A lower fixing plate 2 is bolted to the circumferential surface of the bolt 2, and a bottom locking plate 2 is fixedly connected to the top of the lower fixing plate 2. A locking sleeve 2 is threadedly connected to the inner circumferential surface of the locking sleeve 2.
[0009] Furthermore, a lifting ring is fixedly connected to the top of the upper fixed plate one, and a lifting ring is fixedly connected to the top of the upper fixed plate two, the function of which is to facilitate the hoisting and movement of this utility model by the staff through external hoisting equipment.
[0010] Furthermore, the upper fixing plate one and the upper fixing plate two are L-shaped, and the lower fixing plate one and the lower fixing plate two are L-shaped. Their function is to increase the structural strength and facilitate the clamping and fixing of the iron core.
[0011] Furthermore, there are two bolts, Bolt 1 and Bolt 2, which are symmetrical to each other along the vertical central axis of the upper fixing plate. Their function is to ensure the stability of the structure and the uniform distribution of clamping force, thereby improving the clamping effect.
[0012] Furthermore, a heat dissipation device is provided at the bottom of the upper fixing plate one. The heat dissipation device includes a heat-conducting plate one, which is fixedly connected to the bottom of the upper fixing plate one. A heat dissipation plate one is fixedly connected to the top of the lower fixing plate one. A heat-conducting plate two is fixedly connected to the bottom of the upper fixing plate two and a heat dissipation plate two is fixedly connected to the top of the lower fixing plate two. Its function is to improve the heat dissipation efficiency of the iron core during operation, prevent the iron core from being damaged due to excessive temperature, and extend the service life of the iron core.
[0013] Furthermore, the side of the first heat sink plate is slidably connected to the side of the first heat conduction plate, and the side of the second heat sink plate is slidably connected to the side of the second heat conduction plate. Their function is to make contact with each other to dissipate heat more effectively and ensure the stable operation of the iron core.
[0014] Furthermore, there are two of the heat dissipation plate one, heat conduction plate one, heat conduction plate two, and heat dissipation plate two, which are symmetrical about each other along the central axis of the iron core. Their function is to ensure the uniformity of heat dissipation and further improve the heat dissipation efficiency of the iron core.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model achieves a firm clamping of the iron core through the cooperation of components such as the upper fixing plate one, bolt one, and upper fixing plate two in the clamping device. At the same time, it ensures a tight fit between the winding and the iron core, avoids the winding from loosening or falling off during use, and improves the stability and safety of the dry-type distribution transformer.
[0017] 2. This utility model achieves efficient heat dissipation of the iron core during operation through the cooperation of heat-conducting plate one, heat dissipation plate one, and heat-conducting plate two in the heat dissipation device. This effectively reduces the temperature of the iron core, prevents damage caused by excessive temperature, and further extends the service life of the iron core. At the same time, the uniform distribution of the heat dissipation device ensures consistent heat dissipation effect in all parts of the iron core, improving the overall heat dissipation efficiency.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, 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 a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a three-dimensional cross-sectional structural schematic diagram of the clamping device of this utility model;
[0022] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the present invention;
[0023] Figure 4 This is a three-dimensional side view structural schematic diagram of the present invention;
[0024] Figure 5 This is a three-dimensional side view structural diagram of the heat dissipation device of this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Iron core; 2. Winding; 3. Clamping device; 301. Upper fixing plate one; 302. Bolt one; 303. Upper fixing plate two; 304. Locking rod one; 305. Locking rod two; 306. Locking sleeve one; 307. Bottom locking plate one; 308. Lower fixing plate one; 309. Bolt two; 310. Lower fixing plate two; 311. Bottom locking plate two; 312. Locking sleeve two; 313. Locking sleeve two; 4. Lifting ring one; 5. Lifting ring two; 6. Heat dissipation device; 601. Heat-conducting plate one; 602. Heat dissipation plate one; 603. Heat-conducting plate two; 604. Heat dissipation plate two. Detailed Implementation
[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-5 This utility model is a dry-type distribution transformer core clamping frame, including a core 1, a winding 2 provided on the outer side of the core 1, and a clamping device 3 provided on the side of the core 1.
[0029] The clamping device 3 includes an upper fixing plate 301, which is disposed on the top of the winding 2. A bolt 302 passes through the side of the upper fixing plate 301, and an upper fixing plate 303 passes through the circumferential surface of the bolt 302. A locking rod 304 is fixedly connected to the bottom of the upper fixing plate 301, and a locking rod 305 is fixedly connected to the bottom of the upper fixing plate 303. A locking sleeve 306 is threadedly connected to the circumferential surface of the locking rod 304. The inner circumferential surface of the locking sleeve post 306 is threaded with a bottom locking plate 307. The bottom of the bottom locking plate 307 is fixedly connected with a lower fixing plate 308. A bolt 309 passes through the side of the lower fixing plate 308. The circumferential surface of the bolt 309 is bolted with a lower fixing plate 310. The top of the lower fixing plate 310 is fixedly connected with a bottom locking plate 311. The inner circumferential surface of the locking sleeve rod 312 is threaded with a locking sleeve post 313.
[0030] The top of the upper fixed plate 301 is fixedly connected to a lifting ring 4, and the top of the upper fixed plate 303 is fixedly connected to a lifting ring 5. Their function is to facilitate the lifting and movement of this utility model by workers using external lifting equipment.
[0031] The upper fixing plate 301 and the upper fixing plate 303 are L-shaped, and the lower fixing plate 308 and the lower fixing plate 310 are L-shaped. Their function is to increase the structural strength and facilitate the clamping and fixing of the iron core 1.
[0032] There are two bolts, 302 and 309, which are symmetrical to each other along the vertical central axis of the upper fixing plate 301. Their function is to ensure the stability of the structure and the uniform distribution of clamping force, thereby improving the clamping effect.
[0033] A heat dissipation device 6 is provided at the bottom of the upper fixing plate 301. The heat dissipation device 6 includes a heat-conducting plate 601, which is fixedly connected to the bottom of the upper fixing plate 301. A heat dissipation plate 602 is fixedly connected to the top of the lower fixing plate 308. A heat-conducting plate 603 is fixedly connected to the bottom of the upper fixing plate 303. A heat dissipation plate 604 is fixedly connected to the top of the lower fixing plate 310. Its function is to improve the heat dissipation efficiency of the iron core 1 during operation, prevent the iron core 1 from being damaged due to excessive temperature, and extend the service life of the iron core 1.
[0034] The side of heat sink 602 is slidably connected to the side of heat conduction plate 601, and the side of heat sink 604 is slidably connected to the side of heat conduction plate 603. Their function is to make contact with each other to dissipate heat more effectively and ensure the stable operation of iron core 1.
[0035] There are two heat sink 602, heat conduction plate 601, heat conduction plate 603 and heat sink 604, which are symmetrical about each other along the central axis of the iron core 1. Their function is to ensure the uniformity of heat dissipation and further improve the heat dissipation efficiency of the iron core 1.
[0036] A specific application of this embodiment is as follows: When it is necessary to clamp and fix the core of a dry-type distribution transformer, the clamping device 3 is first installed on the side of the core 1. By rotating bolt 302 and bolt 309, the upper fixing plate 301 and upper fixing plate 303 are clamped and fixed on both sides. At the same time, locking rod 304 and locking rod 305 further securely clamp the core 1 through the action of locking sleeve 306 and locking sleeve 313. In addition, the setting of lifting ring 4 and lifting ring 5 facilitates the lifting and movement of this utility model by the staff using external lifting equipment, improving the convenience of use. During use, heat-conducting plate 601 and heat-conducting plate 603 respectively conduct the heat generated by the core 1 to heat dissipation plate 602 and heat dissipation plate 604. Heat dissipation plate 602 and heat dissipation plate 604 dissipate the heat through contact with the air, thereby achieving effective heat dissipation of the core 1. The sliding connection between heat sink 602 and heat conduction plate 601, and between heat sink 604 and heat conduction plate 603, ensures efficient heat transfer and further improves the heat dissipation effect.
[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A dry-type distribution transformer core clamping frame, characterized in that, Includes an iron core (1), the outer side of which is provided with a winding (2), and the side of which is provided with a clamping device (3); The clamping device (3) includes an upper fixing plate (301), which is disposed on the top of the winding (2). A bolt (302) passes through the side of the upper fixing plate (301), and an upper fixing plate (303) passes through the circumferential surface of the bolt (302). A locking rod (304) is fixedly connected to the bottom of the upper fixing plate (301), and a locking rod (305) is fixedly connected to the bottom of the upper fixing plate (303). A locking sleeve (305) is threadedly connected to the circumferential surface of the locking rod (304). 6) The inner circumferential surface of the locking sleeve post one (306) is threadedly connected to the bottom locking plate one (307), the bottom of the bottom locking plate one (307) is fixedly connected to the bottom of the bottom fixing plate one (308), the side of the bottom fixing plate one (308) is penetrated by the bolt two (309), the circumferential surface of the bolt two (309) is bolted to the bottom fixing plate two (310), the top of the bottom fixing plate two (310) is fixedly connected to the bottom locking plate two (311), and the inner circumferential surface of the locking sleeve rod two (312) is threadedly connected to the locking sleeve post two (313).
2. The dry-type distribution transformer core clamping frame according to claim 1, characterized in that, The top of the upper fixing plate one (301) is fixedly connected to a lifting ring one (4), and the top of the upper fixing plate two (303) is fixedly connected to a lifting ring two (5).
3. A dry-type distribution transformer core clamping frame according to claim 2, characterized in that, The upper fixing plate one (301) and the upper fixing plate two (303) are configured in an L-shape, and the lower fixing plate one (308) and the lower fixing plate two (310) are configured in an L-shape.
4. A dry-type distribution transformer core clamping frame according to claim 3, characterized in that, There are two bolts, one (302) and two bolts (309), which are symmetrical to each other along the vertical central axis of the upper fixing plate (301).
5. A dry-type distribution transformer core clamping frame according to claim 4, characterized in that, A heat dissipation device (6) is provided at the bottom of the upper fixing plate (301). The heat dissipation device (6) includes a heat-conducting plate (601), which is fixedly connected to the bottom of the upper fixing plate (301). A heat dissipation plate (602) is fixedly connected to the top of the lower fixing plate (308). A heat-conducting plate (603) is fixedly connected to the bottom of the upper fixing plate (303). A heat dissipation plate (604) is fixedly connected to the top of the lower fixing plate (310).
6. A dry-type distribution transformer core clamping frame according to claim 5, characterized in that, The side of the first heat sink (602) is slidably connected to the side of the first heat conduction plate (601), and the side of the second heat sink (604) is slidably connected to the side of the second heat conduction plate (603).
7. A dry-type distribution transformer core clamping frame according to claim 6, characterized in that, There are two of the following heat sinks (602), heat conduction plates (601), heat conduction plates (603), and heat sinks (604), and they are symmetrical to each other along the central axis of the iron core (1).