Easily-overhauled encapsulated transformer

Abstract

The utility model discloses a potting transformer easy to maintain. The potting transformer comprises a shell, a top window and a side window. The shell is an open plastic shell, the top window is positioned on one surface, opposite to the opening, of the shell, the top window is formed by hot-pressing a transparent plastic sheet on the outer side of the shell, side windows are arranged in the centers of two opposite side surfaces of the shell, and the side windows are formed by hot-pressing transparent plastic sheets on the outer side of the shell. Compared with the prior art, the utility model has the beneficial effects that firstly, the design is simple and reasonable, and the manufacture is easy; secondly, through the transom window, the side window and the transparent injection glue, the fusing condition of each surface of the winding wire can be conveniently and directly observed, the fusing point can be quickly found, and the maintenance time is shortened;

Description

Technical Field

[0001] This utility model belongs to the field of potting transformer technology, specifically relating to a potting transformer that is easy to maintain. Background Technology

[0002] A potted transformer is a transformer and its accessories sealed with potting material. Compared with traditional transformers, potted transformers have better moisture resistance, dust resistance, and corrosion resistance, while also being smaller and lighter. However, existing potted transformers are completely encapsulated with epoxy resin, making it difficult to observe the coil condition. Furthermore, the outer casing obstructs the view, making it even more difficult for maintenance personnel to observe and determine the specific condition of a melted coil. Often, only a voltmeter can be used to detect the current at the exposed leads, making it difficult to accurately determine the exact location of the melted coil. Therefore, potted transformers can only be disassembled blindly, increasing the difficulty of repair. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easy-to-maintain encapsulated transformer. It is not only simple in design but also allows for quick and easy location of the fuse by observation, facilitating repair.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-maintain encapsulated transformer, comprising a casing, a top window, and side windows; the casing is an open plastic casing, the top window is located on the side of the casing opposite to the opening, the top window is formed by hot-pressing a transparent plastic sheet onto the outside of the casing, and side windows are provided at the center of the two opposite sides of the casing, the side windows are formed by hot-pressing a transparent plastic sheet onto the outside of the casing.

[0005] Preferably, the housing is provided with a winding wire, which is wound on a silicon steel sheet and has pins at the opening of the housing.

[0006] Preferably, the winding is exposed at the side window.

[0007] Preferably, the housing is provided with transparent injection adhesive, which is transparent epoxy resin sealant.

[0008] Compared with the prior art, the advantages of this utility model are: First, the design is simple and reasonable and easy to manufacture; Second, through the top window, side window and transparent injection, it is convenient to directly observe the melting condition of each surface of the winding, which is conducive to quickly finding the melting point and shortening the maintenance time.

[0009] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall potting transformer of this utility model;

[0012] Figure 2 This is a schematic diagram of the top surface of the potting transformer of this utility model.

[0013] In the picture: 1. Top window, 2. Side window, 3. Outer shell, 4. Wire winding, 5. Transparent glue injection, 6. Stitches. Detailed Implementation

[0014] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0016] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0017] Please see Figure 1 , 2 This utility model provides a technical solution: an easy-to-maintain encapsulated transformer, including a shell 3, a top window 1, and side windows 2; the shell 3 is an open plastic shell, and a winding 4 is provided inside the shell 3. The winding 4 is wound on a silicon steel sheet and has a pin 6 at the opening of the shell 3. The winding 4 is exposed at the side window 2. The top window 1 is located on the side of the shell 3 opposite to the opening. The top window 1 is formed by hot pressing a transparent plastic sheet onto the outside of the shell 3. The center of the two opposite sides of the shell 3 is provided with side windows 2. The side windows 2 are formed by hot pressing a transparent plastic sheet onto the outside of the shell 3. The shell 3 is provided with transparent injection 5, which is transparent epoxy resin sealant.

[0018] Working principle: During maintenance, remove the transformer from the circuit board and observe the winding 4 on one side of pin 6, the winding 4 inside the side window 2, and the winding 4 inside the top window 1 to check for any melting points. After finding a melting point, cut the side window 2 and the top window 1 off the outer casing 3 with a knife. Then, cut off the transparent potting compound 5 along with the winding 4 along the edge of the inner outer casing 3 of the window opening. Peel off the transparent potting compound 5, repair the melting point or rewind the winding 4, heat the edge of the transparent plastic sheet removed from the side window 2 and the top window 1, and press the melted edge of the transparent plastic sheet firmly onto the opening of the side window 2 and the top window 1. After cooling, put the winding 4 along with the silicon steel sheet into the outer casing 3, and add the transparent potting compound 5 for sealing.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A potted transformer that is easy to maintain, comprising a housing (3), a top window (1) and a side window (2), characterized in that: The shell (3) is an open plastic shell, the top window (1) is located on a side of the shell (3) opposite to its opening, the top window (1) is formed by hot pressing a transparent plastic sheet on the outside of the shell (3), and side windows (2) are provided at the centers of two opposite side surfaces of the shell (3), the side windows (2) are formed by hot pressing a transparent plastic sheet on the outside of the shell (3).

2. The potting transformer that is easy to maintain according to claim 1 is characterized in that: A winding (4) is provided in the housing (3), and the winding (4) is wound around the silicon steel sheet and has pins (6) left at the opening of the housing (3).

3. The potting transformer that is easy to maintain according to claim 2 is characterized in that: The winding wire (4) is exposed at the side window (2).

4. The potting transformer that is easy to maintain according to claim 1 is characterized in that: A transparent injection glue (5) is provided in the housing (3), and the transparent injection glue (5) is a transparent epoxy resin sealant.

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