Transformer with safe heat dissipation function

Abstract

The utility model discloses a transformer capable of dissipating heat safely. According to the technical scheme, the secondary transformer comprises a plurality of secondary transformer bodies arranged side by side, a base used for bearing the secondary transformer bodies, a bottom plate located under the base, an adjusting frame located on the bottom plate, a threaded column connected to the adjusting frame in a threaded mode, and a plurality of telescopic frames close to the corners of the bottom plate and located between the base and the bottom plate. One end of the threaded column is rotationally connected with the base, a plurality of heat dissipation plates capable of partially extending into the position between two adjacent secondary transformation bodies are arranged on the two sides, parallel to the straight line where the multiple secondary transformation bodies are located, of the base, and heat between the two secondary transformation bodies is guided to the two sides of the base through the heat dissipation plates so that the temperature of the secondary transformation bodies can be reduced. The problem that the transformer is damaged due to slow heat dissipation in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of dry-type transformer technology, and more specifically to a transformer with safe heat dissipation. Background Technology

[0002] A dry-type transformer is a type of transformer that does not use insulating oil. Its core and windings are not immersed in insulating oil and are mainly cooled by natural air cooling (AN) or forced air cooling (AF). This type of transformer is widely used in local lighting, high-rise buildings, airports, docks, and CNC machine equipment.

[0003] Currently, Chinese patent CN222260717U discloses an outdoor dry-type transformer. It adds a telescopic frame, an adjusting frame, a threaded column, and a shaft seat between the dry-type transformer body and the base. The threaded column rotates relative to the adjusting frame and the shaft seat, which drives the dry-type transformer body to move up and down relative to the base. The length of the telescopic frame changes accordingly with the height of the dry-type transformer. Although this design solves the problem of different height requirements for dry-type transformers in different installation environments, it still has defects. The dry-type transformer includes multiple secondary transformers arranged side by side. There is a small gap between adjacent secondary transformers. The air flow within the gap is poor and the heat is difficult to dissipate. As a result, the secondary transformer in the middle position has a high temperature and is prone to burn-out accidents, resulting in low safety. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a transformer that is easy to dissipate heat and safe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a transformer for safe heat dissipation, comprising multiple secondary transformers arranged side by side, a base for supporting the multiple secondary transformers, a base plate located directly below the base, an adjustment frame positioned on the base plate, threaded posts threaded to the adjustment frame, and multiple telescopic frames located near the corners of the base plate and between the base and the base plate. One end of each threaded post is rotatably connected to the base. Multiple heat dissipation plates that can partially extend between two adjacent secondary transformers are provided on both sides of the base parallel to the straight line where the multiple secondary transformers are located. The heat dissipation plates guide the heat between the two secondary transformers to both sides of the base, thereby reducing the temperature of the secondary transformers.

[0006] As a further improvement of this utility model, the base is machined with a plurality of slots for inserting heat sinks. The heat sink includes an insertion part that matches the slot and an upper heat sink part that is wider than the insertion part and located above the base. The length of the upper heat sink part is greater than the length of the slot. The portion of the upper heat sink part that does not extend between adjacent sub-transformers is provided with a plurality of upper notches distributed along the height direction of the sub-transformers.

[0007] As a further improvement of this utility model, the width of the upper heat dissipation part gradually increases along the direction in which the upper heat dissipation part is inserted between adjacent secondary transformers.

[0008] As a further improvement of this utility model, the heat sink also includes a lower heat sink portion whose height is lower than that of the lower surface of the base and which is connected to the plug-in portion, and the width of the lower heat sink portion is the same as the width of the plug-in portion.

[0009] As a further improvement of this utility model, the lower heat dissipation part is provided with a plurality of lower notches distributed along the length direction of the slot.

[0010] As a further improvement of this utility model, the base plate is provided with a plurality of limiting frames that are geometrically distributed and located on the outside of the base. Each of the limiting frames includes a straight plate standing on the base plate and two limiting blocks located above and below the base, respectively.

[0011] The beneficial effects of this utility model are as follows: When the external wind direction is parallel to the straight line where multiple sub-transformers 1 are located, the heat dissipation plate 7 guides the heat accumulated between adjacent sub-transformers to both sides of the base. Compared with the prior art, this design can accelerate the dissipation of heat, thereby effectively reducing the temperature of the sub-transformer located in the middle and ensuring the safety of the sub-transformer in use. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a partial three-dimensional exploded view of the present invention after the secondary transformer body has been removed;

[0014] Figure 3 This is a perspective view of the heat sink in this utility model.

[0015] Reference numerals in the attached drawings: 1. Secondary transformer; 2. Base; 3. Base plate; 4. Adjustment frame; 5. Threaded column; 6. Telescopic frame; 7. Heat sink plate; 71. Plug-in part; 72. Upper heat sink part; 73. Upper notch; 74. Lower heat sink part; 75. Lower notch; 8. Slot; 9. Limiting frame; 91. Straight plate; 92. Limiting block. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0017] Reference Figures 1 to 3As shown, a safe heat dissipation transformer of this embodiment includes multiple secondary transformer bodies 1 arranged side by side, a base 2 for supporting the multiple secondary transformer bodies 1, a base plate 3 located directly below the base 2, an adjustment frame 4 positioned on the base plate 3, a threaded post 5 threadedly connected to the adjustment frame 4, and multiple telescopic frames 6 located near the corners of the base plate 3 and between the base 2 and the base plate 3. One end of the threaded post 5 is rotatably connected to the base 2.

[0018] Based on the aforementioned prior art, slots 8 extending in opposite directions are machined on both sides of the base 2, parallel to the straight line containing the multiple secondary transformers 1. One end of each slot 8 extends into the space between adjacent secondary transformers 1. The total length of the opposing slots 8 is less than the width of the base plate 3. Each of the multiple heat sinks 7 includes an integrally formed insertion part 71 and an upper heat sink part 72. The insertion part 71 matches the slot 8. The width of the upper heat sink part 72 is greater than the width of the slot 8, and the length of the upper heat sink part 72 is greater than the length of the slot 8. The upper heat sink part 72 and the insertion part 71 are connected at one end. Multiple upper notches 73 are machined on the flat end. The plug part 71 is inserted into the slot 8 from one side of the base plate 2. The upper heat dissipation part 72 slides relative to the upper surface of the base plate 2 until the plug part 71 touches the slot 8. Most of the upper heat dissipation part 72 is located between adjacent secondary transformers 1. Multiple upper notches 73 are evenly distributed along the height direction of the secondary transformer 1. L-shaped parts can be fixedly connected to the two sides of the upper heat dissipation part 72 near the edge of the base 2. The bolts are screwed downward so that one end of the bolt is screwed into the base 2, and the heat dissipation plate 7 is fixedly connected to the base 2.

[0019] Compared to existing technologies, this design, when the external wind direction is parallel to the straight line where multiple sub-transformers 1 are located, directs the heat accumulated between adjacent sub-transformers 1 to both sides of the base 2 through the heat dissipation plate 7, accelerating heat dissipation and effectively reducing the temperature of the middle sub-transformer 1, ensuring the safety of the sub-transformer 1 in use. The design of multiple upper notches 73 on the upper heat dissipation section 72 ensures that airflow passes sequentially through multiple upper heat dissipation sections 72 when the external wind direction is parallel to the straight line where multiple sub-transformers 1 are located. Compared to a complete rectangular design for the upper heat dissipation section 72, this design avoids the wind being blocked by the first upper heat dissipation section 72. The phenomenon of air blowing onto the subsequent upper heat dissipation section 72 effectively improves the heat dissipation and heat conduction speed of each upper heat dissipation section 72, while also reducing the thrust generated by the wind on the upper heat dissipation section 72 and improving the structural stability of the upper heat dissipation section 72; the design that the length of the upper heat dissipation section 72 is greater than the length of the slot 8 can further increase the length of the upper heat dissipation section 72 between adjacent secondary transformers 1, increase the heat conduction area of ​​the upper heat dissipation section 72, and accelerate the dissipation of heat; the design that the width of the upper heat dissipation section 72 is greater than the slot 8 can facilitate the disassembly and assembly of the heat dissipation plate 7 on the base 2, improve the disassembly and assembly efficiency, and simplify the structure of the heat dissipation plate 7 fixedly connected on the base 2.

[0020] As one specific implementation method of the improvement, refer to Figure 3As shown, the width of the upper heat dissipation part 72 gradually increases along the direction in which the upper heat dissipation part 72 is inserted between adjacent secondary transformers 1. When the outside wind direction is parallel to the width of the base 2, the air flow speed entering between adjacent secondary transformers 1 changes from slow to fast, effectively accelerating the air flow between adjacent secondary transformers 1, and further accelerating the heat dissipation speed of the outer wall of the secondary transformer 1.

[0021] As one specific implementation method of the improvement, refer to Figure 3 As shown, a lower heat dissipation part 74 is integrally formed below the insertion part 71, with a height lower than the lower surface of the base 2. The width of the lower heat dissipation part 74 is the same as the width of the insertion part 71. The two L-shaped parts in the first embodiment can be positioned on both sides of the lower heat dissipation part 74. By using the bolt to contact the lower surface of the base 2, the upper heat dissipation part 72 and the bolt together clamp the base 2, and the heat dissipation plate 7 is positioned on the base 2. The design of the lower heat dissipation part 74 can add a new heat conduction direction for the upper heat dissipation part 72, and at the same time increase the heat dissipation area of ​​the heat dissipation plate 7, thereby improving the overall heat dissipation speed of the heat dissipation plate 7.

[0022] As one specific implementation method of the improvement, refer to Figure 3 As shown, the lower heat dissipation section 74 is provided with multiple lower notches 75 distributed along the length of the slot 8. This design ensures that when the external wind direction is parallel to the straight line where multiple sub-transformers 1 are located, the airflow will flow through multiple lower heat dissipation sections 74 in sequence. Compared with the design of the lower heat dissipation section 74 as a complete cuboid, it can avoid the phenomenon that the wind is blocked by the first lower heat dissipation section 74 and cannot reach the subsequent lower heat dissipation sections 74, effectively improving the heat dissipation speed and heat conduction speed of each lower heat dissipation section 74. At the same time, it can also reduce the thrust generated by the wind on the lower heat dissipation section 74 and improve the structural stability of the lower heat dissipation section 74.

[0023] As one specific implementation method of the improvement, refer to Figure 2 As shown, the base plate 3 is provided with multiple geometrically distributed limiting frames 9 located on the outside of the base 2. Each limiting frame 9 includes a straight plate 91 and two limiting blocks 92. The two limiting blocks 92 are distributed along the length of the straight plate 91 and are located on the same side of the straight plate 91. Then, the straight plate 91 is moved towards the edge of the base 2 so that the two limiting blocks 92 are located above and below the base 2, respectively. Then, one end of the straight plate 91 is positioned on the base plate 3. The two limiting blocks 92 limit the minimum height and maximum height of the base 2, respectively. When the base 2 touches any of the limiting blocks 92, the base 2 cannot move upward and the threaded column 5 cannot rotate. This design can provide a reasonable height adjustment range for the secondary transformer 1.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A transformer for safe heat dissipation, comprising a plurality of secondary transformer bodies (1) arranged side by side, a base (2) for supporting the plurality of secondary transformer bodies (1), a base plate (3) located directly below the base plate (2), an adjusting frame (4) positioned on the base plate (3), a threaded post (5) threadedly connected to the adjusting frame (4), and a plurality of telescopic frames (6) located near the corners of the base plate (3) and between the base plate (2) and the base plate (3), wherein one end of the threaded post (5) is rotatably connected to the base (2), characterized in that: The base (2) is provided with multiple heat dissipation plates (7) on both sides of the straight line where the multiple sub-transformers (1) are located. These plates can partially extend into the space between two adjacent sub-transformers (1). The heat dissipation plates (7) guide the heat between the two sub-transformers (1) to both sides of the base (2), thereby reducing the temperature of the sub-transformers (1).

2. The transformer for safe heat dissipation according to claim 1, characterized in that: The base (2) is provided with a plurality of slots (8) for inserting heat sinks (7). The heat sink (7) includes a plug-in portion (71) that matches the slot (8) and an upper heat sink portion (72) that is wider than the plug-in portion (71) and located above the base (2). The length of the upper heat sink portion (72) is greater than the length of the slot (8). The portion of the upper heat sink portion (72) that does not extend into the adjacent sub-transformer (1) is provided with a plurality of upper notches (73) distributed along the height direction of the sub-transformer (1).

3. A transformer with safe heat dissipation according to claim 2, characterized in that: The width of the upper heat dissipation part (72) gradually increases along the direction in which the upper heat dissipation part (72) is inserted between adjacent sub-transformers (1).

4. A transformer for safe heat dissipation according to claim 2 or 3, characterized in that: The heat sink (7) also includes a lower heat sink (74) whose height is lower than that of the lower surface of the base (2) and is connected to the plug-in part (71). The width of the lower heat sink (74) is the same as that of the plug-in part (71).

5. A transformer with safe heat dissipation according to claim 4, characterized in that: The lower heat dissipation part (74) is provided with a plurality of lower notches (75) distributed along the length direction of the slot (8).

6. A transformer for safe heat dissipation according to claim 1, 2, or 3, characterized in that: The base plate (3) is provided with a plurality of geometrically distributed limiting frames (9) located outside the base (2). Each of the limiting frames (9) includes a straight plate (91) standing on the base plate (3) and two limiting blocks (92) located above and below the base (2) respectively.

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