A power distribution transformer housing with high heat dissipation

Abstract

The utility model discloses a power distribution transformer shell of high -efficient heat dissipation belongs to power distribution transformer technical field, and the inside of base is provided with cooling chamber, shell body detachable installation is in the base, be provided with a plurality of openings on the outer wall of base, and a plurality of openings are movably installed with filter plate, be provided with first air -permeable groove on the outer wall of shell body, be provided with a plurality of second air -permeable groove on the outer wall of shell body one side of base, be provided with first flange on the outer wall of shell body, be provided with second flange on the base, the projection of first flange on second flange is less than second flange, still include locking piece, and locking piece slidingly sets up on second flange and is used for locking first flange. The second air -permeable groove of base and the first air -permeable groove of shell body form the vertical airflow channel of lower inlet and upper outlet, and realize no energy consumption natural heat dissipation with the aid of hot-pressing effect, and compared with traditional side -in side -out structure heat dissipation efficiency improves 15% 20%.

Description

Technical Field

[0001] This utility model relates to the field of power distribution transformer technology, specifically a power distribution transformer housing with high-efficiency heat dissipation. Background Technology

[0002] A transformer consists of an iron core and coils. The coils have two or more windings; the winding connected to the power source is called the primary winding, and the others are called secondary windings. Transformers are common electrical equipment, and some need to be placed outdoors. Transformers used outdoors for extended periods often require an aluminum casing for protection. While this casing provides insulation, it also hinders heat dissipation, potentially leading to overheating and operational malfunctions over time.

[0003] Patent application CN222705275U discloses a transformer housing with efficient heat dissipation, comprising two wide plates, with long plates fixedly connected to both ends of the two wide plates facing each other. Mounting components are provided at the connection points of the wide plates and the long plates. A support frame is fixedly connected to the bottom of the two long plates facing each other. Multiple evenly distributed ventilation plates are fixedly connected to the inner top of the support frame. A movable plate is slidably connected inside the support frame, and multiple evenly distributed fans are fixedly connected inside the movable plate. Disassembly components are provided on both sides of the movable plate, and an inspection component is provided inside the left wide plate. In this invention, fans are installed to the bottom and sides of the transformer housing via slide grooves one, two, and three. Ventilation openings are then created in the ventilation plates, wide plates, and long plates to dissipate heat from the transformer housing. The mounting components allow for relatively simple installation of the transformer housing.

[0004] However, the heat dissipation effect of the transformer casing disclosed above is generally poor, it cannot dissipate heat from multiple angles and positions, and the installation process is cumbersome and lacks a quick locking structure. Utility Model Content

[0005] The purpose of this utility model is to provide a distribution transformer housing with high-efficiency heat dissipation in order to solve the problems of the existing transformer housing having poor heat dissipation effect, not being able to dissipate heat from multiple angles and positions, having a cumbersome installation process, and lacking a quick locking structure.

[0006] To achieve the above objectives, the technical solution of this utility model is: a high-efficiency heat dissipation distribution transformer housing, including a base with a cooling cavity inside; and a housing body, which is detachably mounted on the base; The base has multiple openings on its outer wall, and filter plates are movably installed at these openings. The outer wall of the outer shell has a first ventilation groove, and the outer wall of the base facing the outer shell has multiple second ventilation grooves. The outer wall of the outer shell has a first flange, and the base has a second flange. The projection of the first flange onto the second flange is smaller than that of the second flange. The base also includes a locking element, which is slidably disposed on the second flange and used to lock the first flange.

[0007] As a further embodiment of this utility model: a sliding cavity is provided inside the second flange, and a slot communicating with the sliding cavity is provided on the second flange; a limiting cavity is provided on the first flange; the locking member includes a main body, and a first sliding part and a second sliding part are provided on the main body, the first sliding part is slidably disposed in the sliding cavity, and the second sliding part is used to fix the limiting cavity.

[0008] As a further improvement of this utility model: a slide rail is provided at the opening, and the filter plate is slidably mounted on the slide rail.

[0009] As a further embodiment of this utility model: the base is provided with a plurality of limiting plates on the side facing the outer shell, and the outer wall of the outer shell is attached to the inner wall of the plurality of limiting plates; the outer shell is inserted between the plurality of limiting plates.

[0010] As a further improvement of this utility model, a handle is provided on the outer wall of the outer shell.

[0011] As a further improvement of this utility model, a door panel is movably provided on the outer shell.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a dual-ventilation groove structure, a flange nesting locking design, and a detachable filter assembly to create an innovative solution that balances heat dissipation efficiency, sealing performance, and ease of maintenance. The second ventilation groove in the base and the first ventilation groove in the outer shell form a bottom-in, top-out vertical airflow channel, achieving energy-free natural heat dissipation through thermo-pressure effect. Compared to traditional side-in, side-out structures, this improves heat dissipation efficiency by 15%-20%. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the internal structure of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a three-dimensional structural diagram of the locking component in this utility model.

[0014] Explanation of reference numerals in the attached figures: 1. Base; 2. Outer shell; 3. Cooling chamber; 4. Slide rail; 5. Filter plate; 6. Limiting plate; 7. First ventilation groove; 8. Handle; 9. Door panel; 10. Second ventilation groove; 11. First flange; 12. Second flange; 13. Sliding chamber; 14. Slot; 15. Limiting chamber; 16. Locking element; 17. First sliding part; 18. Second sliding part; 19. Main body. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0016] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] This utility model provides an improved, highly efficient heat dissipation housing for a distribution transformer, such as... Figures 1-5 As shown, it includes a base 1 with a cooling chamber 3 inside; and an outer shell 2, which is detachably mounted on the base 1. The base 1 has multiple openings on its outer wall, and filter plates 5 are movably installed in the multiple openings; the outer wall of the outer shell 2 has a first ventilation groove 7, and the outer wall of the base 1 facing the outer shell 2 has multiple second ventilation grooves 10; the outer wall of the outer shell 2 has a first flange 11, and the base 1 has a second flange 12; the projection of the first flange 11 on the second flange 12 is smaller than that of the second flange 12; it also includes a locking member 16, which is slidably disposed on the second flange 12 and used to lock the first flange 11.

[0020] In this invention, the high-efficiency heat-dissipating power distribution transformer casing utilizes a dual-ventilation groove structure, a flange nesting locking design, and a detachable filter assembly to create an innovative solution that balances heat dissipation efficiency, sealing performance, and ease of maintenance. The second ventilation groove 10 of the base 1 and the first ventilation groove 7 of the casing 2 form a vertical airflow channel with the air entering from the bottom and exiting from the top. Cold air enters the cooling chamber 3 through the opening of the base 1, is filtered by the filter plate 5, absorbs heat from the transformer, and becomes hot air. This hot air then rises through the second ventilation groove 10 to the top of the casing 2 and is finally discharged from the first ventilation groove 7. This design utilizes the thermo-pressure effect to achieve energy-free heat dissipation, improving heat dissipation efficiency by 15%-20% compared to traditional side-in, side-out airflow paths.

[0021] The locking element 16 is slidably mounted on the second flange 12, which can lock the first flange 11, fix the relative position of the base 1 and the outer shell 2, and ensure stable installation. The projection of the first flange 11 on the second flange 12 is smaller, providing structural space for the overlap and unlocking of the two, and avoiding interference during unlocking.

[0022] See appendix Figure 3 -Appendix Figure 5The second flange 12 has a sliding cavity 13 inside, and a slot 14 communicating with the sliding cavity 13 is provided on the second flange 12; a limiting cavity 15 is provided on the first flange 11; the locking member 16 includes a main body 19, and a first sliding part 17 and a second sliding part 18 are provided on the main body 19. The first sliding part 17 is slidably disposed in the sliding cavity 13, and the second sliding part 18 is used to fix the limiting cavity 15.

[0023] In this embodiment: the sliding cavity 13 is formed inside the second flange 12, providing a sliding track for the first sliding part 17 of the main body 19 of the locking member 16, restricting the movement direction of the locking member 16, and ensuring that it slides only along a set path. The limiting cavity 15 of the first flange 11 is the locking track. When the outer shell 2 is installed on the base 1, the second sliding part 18 of the locking member 16 is embedded here, which can restrict the relative vertical movement of the outer shell 2 and the base 1, and achieve position fixation.

[0024] In this embodiment, the locking member 16 adopts a double sliding part design. The first sliding part 17 is slidably disposed in the sliding cavity 13 and serves as a guide structure for the locking member 16, ensuring that the locking member 16 moves in a fixed direction and avoiding deviation. The second sliding part 18 is the locking execution structure, which completes the locking or unlocking action by sliding into or out of the limiting cavity 15 of the first flange 11.

[0025] Unlocked state: Pushing the main body 19 of the locking member 16 causes the first sliding part 17 to move within the sliding cavity 13, thereby disengaging the second sliding part 18 from the limiting cavity 15 of the first flange 11. At this time, the outer shell 2 can be freely lifted upward relative to the base 1 and detached from the base 1.

[0026] Locked state: After the outer shell 2 is installed on the base 1, push the locking member 16 to allow the second sliding part 18 to be inserted into the limiting cavity 15.

[0027] See appendix Figure 1 -Appendix Figure 2 A slide rail 4 is provided at the opening, and the filter plate 5 is slidably mounted on the slide rail 4.

[0028] In this embodiment, the slide rail 4 further optimizes the ease of maintenance of the filter plate 5, realizes the precise sliding and disassembly of the filter plate 5, and solves the problems of difficult disassembly and easy damage of the traditional filter plate 5.

[0029] Building upon the existing advantages in heat dissipation and installation, the filter plate 5 can be easily pulled out without tools through the sliding engagement of the slide rail 4 and the filter plate 5. Cleaning or replacement does not require disassembling the base 1, significantly reducing maintenance time. The slide rail 4 is fixed to the edge of the opening in the base 1, providing a stable sliding track for the filter plate 5 and ensuring that the filter plate 5 will not shift during installation or removal.

[0030] In this embodiment, filter plate 5 protects internal components. Components such as coils and cores inside the transformer are sensitive to dust; dust accumulation can lead to decreased insulation performance and even short-circuit faults. Filter plate 5 can intercept dust in advance, reducing the risk of internal contamination at the source. If dust enters the cooling chamber 3 and adheres to the surface of the heat dissipation components, it will form a heat insulation layer, reducing the heat exchange efficiency between the cold air and the components. The filtering effect of filter plate 5 keeps the inside of the cooling chamber clean, ensuring the long-term stable operation of the heat dissipation system. Pre-filtration reduces the amount of dust entering the transformer, eliminating the need for frequent disassembly of the casing to clean internal components; only periodic cleaning or replacement of filter plate 5 is required, significantly reducing overall maintenance costs.

[0031] See appendix Figure 1 -Appendix Figure 2 The base 1 has multiple limiting plates 6 on the side facing the outer shell 2, and the outer wall of the outer shell 2 is attached to the inner wall of the multiple limiting plates 6; the outer shell 2 is inserted between the multiple limiting plates 6.

[0032] In this embodiment, the newly added limiting plate 6 structure, through precise guiding design, further optimizes the installation accuracy and structural stability of the outer shell 2. The three-dimensional precise positioning limiting plate 6 is radially distributed along the edge of the base 1, and its inner wall is tightly fitted with the outer wall of the outer shell 2 to form a mortise and tenon joint. This design replaces the traditional point contact with surface contact guidance, which can control the installation deviation of the outer shell 2 within ±0.2mm, ensuring that the first flange 11 and the second flange 12 are completely aligned, and avoiding blockage of the heat dissipation channel due to misalignment.

[0033] An EPDM rubber buffer layer, 2-3mm thick, is embedded inside the limiting plate 6. This layer absorbs vibrations during transportation and provides elastic compensation during thermal expansion and contraction. Diamond-shaped anti-slip textures are formed on the surface of the rubber layer to increase the coefficient of friction to 0.6, preventing accidental slippage of the outer casing 2.

[0034] See appendix Figure 1 -Appendix Figure 2 A handle 8 is provided on the outer wall of the outer shell 2, and a door panel 9 is movably provided on the outer shell 2.

[0035] In this embodiment, the design of the handle 8 and the movable door panel 9 further enhances the ease of operation and maintenance flexibility of the outer casing 2. When installing the outer casing 2, holding the handle 8 allows for easy alignment of the outer casing 2 with the limiting plate 6, avoiding hand slippage or positional displacement caused by direct contact with the outer casing 2, in conjunction with the previously mentioned quick-locking structure.

[0036] When it is necessary to disassemble the outer shell, the outer shell 2 can be lifted or moved directly by using the handle 8 without the need for tools to pry it, thus avoiding wear on the outer wall of the outer shell 2. It is especially suitable for repeated disassembly and assembly during later maintenance.

[0037] In this embodiment, the movable door panel 9 forms a maintenance access channel that does not require disassembly. Without disassembling the entire outer casing 2, the internal components of the transformer can be directly accessed by opening the door panel 9, which facilitates daily inspection, wiring adjustment or handling of minor faults and greatly shortens maintenance time.

[0038] The door panel 9 uses a movable connection, such as a hinge, which allows it to fit tightly against the outer shell 2 when closed. Combined with the sealing strip, it prevents dust and rainwater from entering without compromising overall protective performance. A simple lock can also be installed to prevent accidental operation by non-professionals.

[0039] The design of adding a detachable filter screen (not shown) in the first ventilation groove 7 creates a dual dustproof system of base 1 filter plate 5 and ventilation groove filter screen, which not only enhances the dust interception effect, but also allows for targeted maintenance of filter components in different positions, avoiding internal dust accumulation due to the failure of a single filter.

[0040] The filter screen features a detachable design, eliminating the need to disassemble the outer casing 2 or door panel 9; simply remove the filter screen for cleaning or replacement. When a particular filter component becomes clogged, targeted treatment can be provided, avoiding the hassle of disassembling the entire unit and reducing maintenance costs.

[0041] The filter screen is embedded inside the first ventilation groove 7, completely covering the ventilation area of ​​the groove, ensuring that all airflow passing through the groove is filtered. It employs a snap-on structure, with elastic snaps on the edge of the filter screen. Simply align the snaps with the slots in the ventilation groove and press to secure it. Disassembly is easy; simply pry the snaps open to remove the filter screen without tools, making it convenient to operate.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A high-efficiency heat dissipation distribution transformer casing, characterized in that, include: The base (1) has a cooling cavity (3) inside; The outer casing (2) is detachably mounted on the base (1); The base (1) has multiple openings on its outer wall, and filter plates (5) are movably installed at the multiple openings; the outer wall of the outer shell (2) has a first ventilation groove (7), and the outer wall of the base (1) facing the outer shell (2) has multiple second ventilation grooves (10); the outer wall of the outer shell (2) has a first flange (11), and the base (1) has a second flange (12); the projection of the first flange (11) onto the second flange (12) is smaller than that of the second flange (12). It also includes a locking element (16) which is slidably disposed on the second flange (12) and used to lock the first flange (11).

2. The high-efficiency heat dissipation distribution transformer casing according to claim 1, characterized in that, The second flange (12) has a sliding cavity (13) inside, and a slot (14) communicating with the sliding cavity (13) is provided on the second flange (12); a limiting cavity (15) is provided on the first flange (11). The locking member (16) includes a main body (19), on which a first sliding part (17) and a second sliding part (18) are provided. The first sliding part (17) is slidably disposed in the sliding cavity (13), and the second sliding part (18) is used to fix the limiting cavity (15).

3. The high-efficiency heat dissipation distribution transformer casing according to claim 1 or 2, characterized in that, A slide rail (4) is provided at the opening, and the filter plate (5) is slidably disposed on the slide rail (4).

4. The high-efficiency heat dissipation distribution transformer casing according to claim 1 or 2, characterized in that, The base (1) is provided with a plurality of limiting plates (6) on the side facing the outer shell (2), and the outer wall of the outer shell (2) is attached to the inner wall of the plurality of limiting plates (6); the outer shell (2) is inserted between the plurality of limiting plates (6).

5. A high-efficiency heat dissipation distribution transformer casing according to claim 1 or 2, characterized in that, A handle (8) is provided on the outer wall of the outer shell (2).

6. The high-efficiency heat dissipation distribution transformer casing according to claim 1 or 2, characterized in that, A door panel (9) is movably provided on the outer shell (2).

Images