Encapsulated transformer with overheating protection function for electric energy meter

Abstract

The utility model relates to the field of encapsulated transformers, discloses an encapsulated transformer with an overheat protection function for an electric energy meter, and solves the problems that heat of the encapsulated transformer is generated by internal components, heat needs to be conducted to the outer side through poured resin after a heat conducting plate is installed on the outer side, and then the heat is dissipated through the heat conducting plate. The encapsulation transformer with the overheating protection function for the electric energy meter comprises a lower shell, an encapsulation transformer body arranged on the inner side of the lower shell, an upper shell arranged above the lower shell, a rotating mechanism arranged above the upper shell, and a limiting mechanism arranged on the outer side of the rotating mechanism. By arranging the limiting mechanism, the heat conduction plate can directly conduct heat outwards from the interior of the encapsulated transformer body, compared with the prior art, the heat conduction efficiency is higher, and therefore the purpose of improving the guide efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the field of potting transformers, in particular to a potting transformer with an overheat protection function for an electric energy meter. Background Art

[0002] A potted transformer with overheat protection function is a potted transformer with the function of reducing damage caused by overheating. A potted transformer is a transformer that uses resin to seal electrical components.

[0003] The publication number is CN212411795U, which discloses a novel low-frequency large-capacity potted transformer. The key points of its technical solution are: it includes a shell, a heat-conducting layer is fixedly arranged inside the shell, a potting glue is fixedly arranged inside the heat-conducting layer, and a second groove is reserved in the potting glue. In order to speed up the heat dissipation, the existing potted transformer mainly adopts a heat-conducting plate installed on the outside of the potted transformer body for heat dissipation. However, the heat of the potted transformer is generated by internal components. When the heat-conducting plate is installed on the outside, the heat needs to be conducted to the outside by the poured resin and then dissipated by the heat-conducting plate, which slows down the heat dissipation efficiency. Utility Model Content

[0004] The utility model aims to provide a potting transformer with overheat protection function for an electric energy meter. By adopting the device to work, the problem that the heat of the potting transformer is generated by internal components and a heat conducting plate is installed on the outside, the heat needs to be conducted to the outside by the poured resin and then dissipated by the heat conducting plate, which slows down the heat dissipation efficiency.

[0005] To achieve the above object, the utility model provides the following technical solutions: a potting transformer with overheat protection function for an electric energy meter, comprising a lower shell, a potting transformer body arranged inside the lower shell, an upper shell arranged above the lower shell, a rotating mechanism arranged above the upper shell, and a limiting mechanism arranged outside the rotating mechanism;

[0006] The rotating mechanism includes a rotating disk arranged above the upper shell, a guide hole is arranged inside the rotating disk, a first guide rod is arranged on the inner side of the guide hole, a first groove is connected on the upper outer surface of the upper shell, a guide groove is connected on the upper inner surface of the upper shell, a second guide rod is arranged on the inner side of the guide groove, a rotating ring is arranged on the inner side of the first groove, and the rotating ring is connected to the rotating disk in a fixed manner.

[0007] Preferably, the appearance structure of the guide hole is arc-shaped, and the inner surface of the guide hole fits with the outer surface of the first guide rod, and the appearance structure of the first guide rod is cylindrical.

[0008] Preferably, the rotating ring is connected to the upper shell by threaded connection, and the external appearance structure of the rotating ring is circular.

[0009] Preferably, the appearance structure of the second guide rod is a cuboid, and the second guide rod is connected to the upper housing by a sliding connection.

[0010] Preferably, the limiting mechanism includes a first connecting rod fixedly connected to the upper end of the first guide rod, a first hole is connected to the upper part of the interior of the lower shell, the upper end of the first hole is connected to the upper surface of the lower shell, a second hole is connected to the lower part of the interior of the upper shell, the lower end of the second hole is connected to the lower surface of the upper shell, a heat conducting plate is provided on the inner side of the second hole, the heat conducting plate and the first connecting rod are fixedly connected via the second connecting rod, and a second groove is provided inside the potted transformer body.

[0011] Preferably, the appearance structure of the heat conducting plate is an “I” shape, and the outer surface of the heat conducting plate fits with the inner surfaces of the first hole and the second hole.

[0012] Preferably, the outer surface of the heat conducting plate is in contact with the inner surface of the second groove.

[0013] 1. The utility model proposes a potting transformer with overheat protection function for an electric energy meter. By setting a limiting mechanism, the heat conduction plate can directly conduct heat outward from the inside of the potting transformer body. Compared with the prior art, the heat conduction efficiency will be higher, thereby achieving the purpose of improving the conduction efficiency.

[0014] 2. The utility model proposes a potting transformer with overheat protection function for an electric energy meter. By providing a rotating mechanism, rotating the rotating mechanism can push the limiting mechanism to move outward, so that the limiting mechanism loses the limit on the lower shell and the upper shell, thereby achieving the purpose of facilitating the disassembly of the upper shell.

[0015] 3. The utility model proposes a potted transformer with overheat protection function for an electric energy meter. When the lower shell and the upper shell are opened, the limit mechanism can be moved outward to reduce the visual obstruction inside the potted transformer body, thereby achieving the purpose of more convenient inspection of problem areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the upper housing of the utility model when viewed from above;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the main body of the potting transformer of the utility model from top view;

[0019] Figure 4 For the utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0020] Figure 5 For the utility model Figure 1 Schematic diagram of the structure at point B in the middle.

[0021] In the figure: 1, lower shell; 2, potting transformer body; 3, upper shell; 4, rotating mechanism; 5, limiting mechanism; 401, rotating disk; 402, guide hole; 403, first guide rod; 404, first groove; 405, guide groove; 406, second guide rod; 407, rotating ring; 501, first connecting rod; 502, first hole; 503, second hole; 504, heat conducting plate; 505, second connecting rod; 506, second groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a potting transformer with overheat protection function for an electric energy meter, comprising a lower shell 1, a potting transformer body 2 arranged inside the lower shell 1, an upper shell 3 arranged above the lower shell 1, a rotating mechanism 4 arranged above the upper shell 3, and a limiting mechanism 5 arranged outside the rotating mechanism 4;

[0024] The rotating mechanism 4 includes a rotating disk 401 arranged above the upper shell 3, a guide hole 402 is arranged inside the rotating disk 401, a first guide rod 403 is arranged inside the guide hole 402, a first groove 404 is connected to the upper outer surface of the upper shell 3, a guide groove 405 is connected to the upper inner surface of the upper shell 3, a second guide rod 406 is arranged inside the guide groove 405, the appearance structure of the guide hole 402 is an arc shape, and the inner surface of the guide hole 402 is in contact with the outer surface of the first guide rod 403, and the appearance structure of the first guide rod 403 is cylindrical, and the second guide rod 406 is arranged inside the guide groove 405. 06 has an appearance structure of a rectangular parallelepiped, and the second guide rod 406 is connected to the upper shell 3 in a sliding connection, so that the rotating disk 401 can move along the trajectory of the first guide rod 403 and the second guide rod 406 along the guide groove 405, and a rotating ring 407 is provided on the inner side of the first groove 404, and the rotating ring 407 is connected to the rotating disk 401 in a fixed connection, and the rotating ring 407 is connected to the upper shell 3 in a threaded connection, and the appearance structure of the rotating ring 407 is circular, so that the rotating ring 407 can rotate on the inner side of the first groove 404, and can be limited immediately when stopping.

[0025] The limiting mechanism 5 includes a first connecting rod 501 fixedly connected to the upper end of the first guide rod 403, a first hole 502 is connected to the upper part of the lower shell 1, the upper end of the first hole 502 is connected to the upper surface of the lower shell 1, a second hole 503 is connected to the lower part of the upper shell 3, the lower end of the second hole 503 is connected to the lower surface of the upper shell 3, a heat conducting plate 504 is arranged on the inner side of the second hole 503, and the heat conducting plate 504 is connected to the first connecting rod 501 through the second connecting rod 505. A fixed connection is performed, a second groove 506 is provided inside the potting transformer body 2, the appearance structure of the heat conducting plate 504 is in the shape of an "I", and the outer surface of the heat conducting plate 504 is fitted with the inner surfaces of the first hole 502 and the second hole 503, so that the heat conducting plate 504 can connect the lower shell 1 and the upper shell 3 together, and the outer surface of the heat conducting plate 504 is fitted with the inner surface of the second groove 506, so that the potting transformer body 2 can transfer heat to the top of the heat conducting plate 504.

[0026] By opening the second groove 506 inside the potting transformer body 2 and placing the heat conducting plate 504 therein, the heat inside the potting transformer body 2 can be conducted out more quickly, thereby improving the heat dissipation efficiency.

[0027] By rotating the rotating disk 401, the guide hole 402 can be driven to rotate, so that the first guide rod 403 and the second guide rod 406 move outward along the trajectory of the guide groove 405, driving the first connecting rod 501 and the second connecting rod 505 to move outward, so that the heat conducting plate 504 can move outward, move out of the second groove 506, the first hole 502 and the second hole 503, so that there is no connection between the upper shell 3 and the lower shell 1 and can be disassembled, so that the encapsulated transformer body 2 is easy to repair.

[0028] During maintenance, the heat conducting plate 504 is moved out from the second groove 506 to reduce the visual obstruction inside the potted transformer body 2 and make it easier to check where the problem occurs.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A potting transformer with overheat protection function for an electric energy meter, comprising a lower shell (1), a potting transformer body (2) arranged inside the lower shell (1), and an upper shell (3) arranged above the lower shell (1), characterized in that: A rotating mechanism (4) is arranged above the upper housing (3), and a limiting mechanism (5) is arranged outside the rotating mechanism (4); The rotating mechanism (4) comprises a rotating disk (401) arranged above the upper shell (3); a guide hole (402) is arranged inside the rotating disk (401); a first guide rod (403) is arranged inside the guide hole (402); a first groove (404) is connected on the upper outer surface of the upper shell (3); a guide groove (405) is connected on the upper inner surface of the upper shell (3); a second guide rod (406) is arranged inside the guide groove (405); a rotating ring (407) is arranged inside the first groove (404); and the rotating ring (407) is connected to the rotating disk (401) in a fixed manner.

2. The potting transformer with overheat protection function for electric energy meter according to claim 1 is characterized in that: The appearance structure of the guide hole (402) is arc-shaped, and the inner surface of the guide hole (402) is in contact with the outer surface of the first guide rod (403), and the appearance structure of the first guide rod (403) is cylindrical.

3. The potting transformer with overheat protection function for electric energy meter according to claim 1, characterized in that: The rotating ring (407) is connected to the upper housing (3) in a threaded connection, and the rotating ring (407) has a circular appearance.

4. The potting transformer with overheat protection function for electric energy meter according to claim 1, characterized in that: The second guide rod (406) has an appearance structure of a rectangular parallelepiped, and the second guide rod (406) is connected to the upper housing (3) in a sliding manner.

5. The encapsulated transformer with overheat protection function for electric energy meter according to claim 1, characterized in that: The limiting mechanism (5) includes a first connecting rod (501) fixedly connected to the upper end of the first guide rod (403); a first hole (502) is connected to the upper part of the lower shell (1); the upper end of the first hole (502) is connected to the upper surface of the lower shell (1); a second hole (503) is connected to the lower part of the upper shell (3); the lower end of the second hole (503) is connected to the lower surface of the upper shell (3); a heat conducting plate (504) is provided on the inner side of the second hole (503); the heat conducting plate (504) is fixedly connected to the first connecting rod (501) via a second connecting rod (505); and a second groove (506) is provided inside the potted transformer body (2).

6. The encapsulated transformer with overheat protection function for electric energy meter according to claim 5, characterized in that: The appearance structure of the heat conducting plate (504) is in the shape of an “I”, and the outer surface of the heat conducting plate (504) is in contact with the inner surfaces of the first hole (502) and the second hole (503).

7. The encapsulated transformer with overheat protection function for electric energy meter according to claim 5, characterized in that: The outer surface of the heat conducting plate (504) is in contact with the inner surface of the second groove (506).

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