A multi-channel layered flow-guiding heat dissipation structure of a large-capacity power transformer
By using a multi-channel layered heat dissipation structure for large-capacity power transformers, the problem of increased system complexity and energy consumption caused by existing heat dissipation methods is solved, achieving efficient heat dissipation and low-cost maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU GUANGHUI TRANSFORMER MFG CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-07
AI Technical Summary
Existing heat dissipation methods for power transformers increase system complexity and energy consumption while improving heat dissipation capacity, and significantly increase maintenance difficulty and cost.
The system adopts a multi-channel layered heat dissipation structure for large-capacity power transformers. Through the combination design of outer and inner plates, a multi-channel heat dissipation channel is formed, and the structure is optimized by using a bolt and nut locking mechanism to enhance the heat dissipation effect.
The structure was optimized, heat dissipation efficiency was improved, maintenance difficulty and cost were reduced, and the stable operation of the transformer was ensured.
Smart Images
Figure CN224472286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transformers, specifically a multi-channel layered heat dissipation structure for a large-capacity power transformer. Background Technology
[0002] As a core component of the power grid system, the operational stability of power transformers directly impacts the security and efficiency of power transmission. With the rapid development of technologies such as renewable energy grid integration and high-voltage direct current transmission, the demand for large-capacity, high-voltage transformers continues to grow. These transformers generate significant heat loss during operation due to electromagnetic conversion (such as winding copper losses and core iron losses). If heat dissipation is not timely and effective, it can lead to localized overheating, accelerated insulation aging, and even short circuits and fires. Therefore, efficient heat dissipation technology is crucial for improving transformer performance, extending service life, and ensuring power grid safety.
[0003] In the existing technology, transformer heat dissipation methods mainly include natural cooling, forced air cooling, oil immersion cooling and forced oil circulation cooling. However, some improvement schemes for natural cooling adopt multi-layer independent cooling systems, which improve heat dissipation capacity but increase system complexity and energy consumption, and significantly increase maintenance difficulty and cost. Utility Model Content
[0004] The purpose of this invention is to provide a multi-channel layered heat dissipation structure for large-capacity power transformers to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A multi-channel layered heat dissipation structure for a large-capacity power transformer includes a transformer, outer plates three, two, and one respectively disposed on the outer wall of the transformer, wires installed at the electrical contact terminals of the transformer, outer plates one, two, and three forming a frame, and a bracket one installed on the outer wall of the frame, an L-shaped plate installed on the upper part of the outer wall of the bracket one, a nut and bolt assembly installed on the front face of the L-shaped plate, a bracket two disposed on the back of the bracket one, outer plates one, two, inner plates one, two, and three respectively disposed between the bracket one and the bracket two, outer plates one and two being arranged vertically, an assembly block being fixedly connected to the side of outer plates one and two near the inner plate one, inner plates two and three being two sets, and the two sets of inner plates two and two sets of inner plates three being arranged vertically with a gap.
[0007] As a further embodiment of this utility model: a connecting block is installed between the two sets of inner plates two and the two sets of inner plates three.
[0008] As a further embodiment of this utility model: a slotted nut is installed on the lower part of the front facade of the first bracket, and a nut is installed on the rear facade of the second bracket. One end of the slotted nut is fixedly connected to a bolt, and one end of the bolt passes through the front facade of the first bracket and is threadedly connected to the nut installed on the rear facade of the second bracket.
[0009] As a further improvement of this utility model: an interface is installed at the end of the conductor away from the transformer, and the lower surface of the interface is fixedly connected to the upper surface of the L-shaped plate.
[0010] As a further improvement of this utility model: pressure plates are installed on the lower surface of the transformer, and grooves for wire positioning are provided at the front and rear ends of the pressure plates.
[0011] As a further improvement of this utility model: the number of bracket one and bracket two are both two sets, and the structures of the two sets of bracket one and the two sets of bracket two are adapted to each other.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model uses a flathead screwdriver to turn a slotted nut and bolt to lock bracket one and bracket two, and then uses a nut to lock the bolt at the end that extends out of bracket two. This allows for the assembly of outer plate one, outer plate two, inner plate one, inner plate two and inner plate three that exist between bracket one and bracket two, and achieves channel heat dissipation. Its structure is more optimized and its design is more reasonable.
[0014] In this utility model, outer plates one, two, and three, which are installed on the outer wall of the transformer, form a whole for heat dissipation of the transformer's outer wall. The grooves at the front end of the pressure plates installed on the upper and lower parts of the transformer are used to lock the wires connected to the transformer. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a multi-channel layered heat dissipation structure for a large-capacity power transformer.
[0016] Figure 2 This is an assembly drawing of a multi-channel layered heat dissipation structure for a large-capacity power transformer.
[0017] Figure 3 This is an assembly drawing of outer plate one, outer plate two, and outer plate three in a multi-channel layered heat dissipation structure for a large-capacity power transformer.
[0018] Figure 4 This is a front view of a multi-channel layered heat dissipation structure for a large-capacity power transformer.
[0019] Figure 5 In a multi-channel layered heat dissipation structure for a large-capacity power transformer Figure 2 Enlarged view of point A.
[0020] In the diagram: 1. Transformer; 2. Bracket 1; 3. L-shaped plate; 4. Interface; 5. Pressure plate; 6. Bracket 2; 7. Nut and bolt assembly; 8. Slotted nut; 9. Bolt; 10. Wire; 11. Outer plate 1; 12. Outer plate 2; 13. Outer plate 1; 14. Outer plate 2; 15. Assembly block; 16. Inner plate 1; 17. Inner plate 2; 18. Inner plate 3; 19. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-5 In this embodiment of the utility model, a multi-channel layered heat dissipation structure for a large-capacity power transformer includes a transformer 1, an outer plate 13, an outer plate 12, and an outer plate 11 respectively disposed on the outer wall of the transformer 1, and wires 10 installed at the electrical contact terminals of the transformer 1. The outer plates 11, 12, and 13 form a frame, and a bracket 2 is installed on the outer wall of the frame. An L-shaped plate 3 is installed on the upper part of the outer wall of the bracket 2, and nuts and bolts are installed on the front surface of the L-shaped plate 3. Component 7, a second bracket 6 is provided on the back of bracket 1 2. Outer plate 1 14, outer plate 2 15, inner plate 1 17, inner plate 2 18 and inner plate 3 19 are respectively provided between bracket 1 2 and bracket 2 6. Outer plate 1 14 and outer plate 2 15 are arranged vertically. An assembly block 16 is fixedly connected to the side of outer plate 1 14 and outer plate 2 15 near inner plate 1 17. Inner plate 2 18 and inner plate 3 19 are two sets, and the two sets of inner plate 2 18 and the two sets of inner plate 3 19 are arranged vertically with a gap.
[0023] Connecting blocks are installed between the two sets of inner panels 18 and the two sets of inner panels 19.
[0024] A slotted nut 8 is installed on the lower part of the front facade of bracket 12, and a nut is installed on the rear facade of bracket 26. One end of the slotted nut 8 is fixedly connected to a bolt 9, and one end of the bolt 9 passes through the front facade of bracket 12 and is threadedly connected to the nut installed on the rear facade of bracket 26.
[0025] An interface 4 is installed at the end of the conductor 10 away from the transformer 1, and the lower surface of the interface 4 is fixedly connected to the upper surface of the L-shaped plate 3.
[0026] Pressure plates 5 are installed on the lower surface of transformer 1. The front and rear ends of pressure plates 5 are provided with grooves for locking the wires 10.
[0027] There are two sets of support bracket 1 (2) and two sets of support bracket 2 (6), and the structures of the two sets of support bracket 1 (2) and the two sets of support bracket 2 (6) are compatible.
[0028] The working principle of this utility model is as follows:
[0029] In use, transformer 1 and bracket 2 6 are pre-assembled, and outer plate 14, outer plate 2 15, inner plate 17, inner plate 2 18 and inner plate 3 19 are assembled between transformer 1 and bracket 2 6. There are gaps between outer plate 14 and outer plate 2 15, between the two sets of inner plate 2 18 and the two sets of inner plate 3 19, and between outer plate 14 and inner plate 17 for heat dissipation. The assembly block 16 installed on the side of outer plate 14 near inner plate 17 ensures that there are gaps between outer plate 14 and inner plate 17.
[0030] Similarly, the gaps between outer panel 14 and outer panel 2 15, and between the two sets of inner panels 2 18 and the two sets of inner panels 3 19, are also aided by assembly blocks 16.
[0031] The flathead screwdriver is used to turn the flathead nut 8 and the bolt 9 to lock the bracket 1 2 and bracket 2 6. The bolt 9 is then locked with a nut at the end that extends out of the bracket 2 6, thus assembling the outer plate 14, outer plate 2 15, inner plate 17, inner plate 2 18 and inner plate 3 19 between the bracket 1 2 and bracket 2 6, and achieving channel heat dissipation.
[0032] The outer plate 11, outer plate 2 12 and outer plate 3 13 installed on the outer wall of transformer 1 form a whole for heat dissipation of the outer wall of transformer 1;
[0033] The L-shaped plate 3, which is mounted on the front facade of the bracket 12, is used to connect the outer plate 14 and to fix the outer plate 14, inner plate 17, inner plate 2 18 and inner plate 3 19.
[0034] The grooves at the front end of the pressure plate 5 installed on the upper and lower parts of the transformer 1 are used to lock the wires 10 connected to the transformer 1.
[0035] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A multi-channel layered heat dissipation structure for a large-capacity power transformer, comprising a transformer (1), outer plates three (13), two (12), and one (11) respectively disposed on the outer wall of the transformer (1), and wires (10) installed at the electrical contact ends of the transformer (1), the outer plates one (11), two (12), and three (13) forming a frame, and a bracket one (2) installed on the outer wall of the frame, characterized in that: An L-shaped plate (3) is installed on the outer wall of the bracket (2), and a nut and bolt assembly (7) is installed on the front surface of the L-shaped plate (3). The back of the first bracket (2) is provided with a second bracket (6). The first bracket (2) and the second bracket (6) are respectively provided with an outer plate (14), an outer plate (2) (15), an inner plate (17), an inner plate (2) (18) and an inner plate (3) (19). The outer plate (14) and the outer plate (2) (15) are arranged vertically. The outer plate 1 (14) and outer plate 2 (15) are fixedly connected to the side of the inner plate 1 (17) with an assembly block (16). The inner plate 2 (18) and inner plate 3 (19) are two sets, and the two sets of inner plate 2 (18) and the two sets of inner plate 3 (19) are arranged vertically with a gap.
2. The multi-channel layered heat dissipation structure for a large-capacity power transformer according to claim 1, characterized in that: A connecting block is installed between the two sets of inner plate two (18) and the two sets of inner plate three (19).
3. The multi-channel layered heat dissipation structure for a large-capacity power transformer according to claim 1, characterized in that: A slotted nut (8) is installed on the lower part of the front facade of the first bracket (2), and a nut is installed on the rear facade of the second bracket (6). One end of the slotted nut (8) is fixedly connected to a bolt (9). One end of the bolt (9) passes through the front facade of the first bracket (2) and is threadedly connected to the nut installed on the rear facade of the second bracket (6).
4. The multi-channel layered heat dissipation structure for a large-capacity power transformer according to claim 1, characterized in that: An interface (4) is installed at the end of the conductor (10) away from the transformer (1), and the lower surface of the interface (4) is fixedly connected to the upper surface of the L-shaped plate (3).
5. The multi-channel layered heat dissipation structure for a large-capacity power transformer according to claim 1, characterized in that: The lower surface of the transformer (1) is equipped with a pressure plate (5), and the front and rear ends of the pressure plate (5) are provided with grooves for the wire (10) to be positioned.
6. The multi-channel layered heat dissipation structure for a large-capacity power transformer according to claim 1, characterized in that: The number of bracket one (2) and bracket two (6) are both two sets, and the structures of the two sets of bracket one (2) and the two sets of bracket two (6) are compatible.