High-voltage isolation transformer

Abstract

The utility model discloses a high-voltage isolation transformer which comprises a primary coil and a secondary coil, the primary coil and the secondary coil are arranged in parallel and at intervals, the primary coil is provided with an input end, the secondary coil is provided with an output end, and the primary coil and the secondary coil are fixed through an isolation piece. The primary coil, the secondary coil and the separator are respectively provided with a through hole for the iron core to pass through. According to the utility model, the coil structure form of the traditional transformer is changed, a proper insulating material is added according to the withstand voltage, the withstand voltage value of the transformer is improved, the processing is simple, and the problems of complex process and high cost of the traditional insulating step are solved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a high-voltage isolation transformer. Background Technology

[0002] An isolation transformer is a transformer whose input and output windings are electrically isolated. Isolation transformers are used to prevent accidental simultaneous contact with live conductors. The isolation of the transformer involves isolating the current in the primary and secondary windings separately. Traditional small transformers, such as... Figure 5 As shown, an insulating layer made of insulating material needs to be installed between the two coils and the iron core to insulate them from each other and to allow them to withstand the required voltage.

[0003] When a high voltage needs to be supported between two coils, the traditional transformer structure has the following drawbacks:

[0004] 1. A relatively thick insulation layer is required between the two coils and the iron core. Due to the limitations imposed by the gaps between the coils and between the coil and the iron core, the thickness of the insulation layer is also limited, thus limiting the increase in withstand voltage between the two coils.

[0005] 2. There are multiple insulation layers between coils and between coils and iron core. The intersections between different insulation layers must be completely sealed without gaps in order to achieve the expected withstand voltage. To completely eliminate the gaps between the insulation layers, liquid insulation material must be used and vacuum casting method must be adopted, but the process is complicated and costly. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high-voltage isolation transformer. It changes the coil structure of the traditional transformer, adds appropriate insulation materials according to the withstand voltage level, improves the withstand voltage value of the transformer, and simplifies the processing. It solves the problems of complex process and high cost of traditional insulation steps, and can effectively solve the problems in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage isolation transformer, comprising a primary coil and a secondary coil, wherein the primary coil and the secondary coil are arranged in parallel and spaced apart, the primary coil is provided with an input terminal, the secondary coil is provided with an output terminal, the primary coil and the secondary coil are fixed by an isolator, and the primary coil, the secondary coil and the isolator are all provided with through holes for the iron core to pass through.

[0008] Preferably, the isolator is an insulating shell, and one side of the primary coil and one side of the secondary coil are both fitted inside the insulating shell.

[0009] Preferably, an insulating layer is filled between the primary coil, the secondary coil, and the insulating shell.

[0010] Preferably, the insulating member is an insulating plate, and one side of the primary coil and one side of the secondary coil are fixedly connected to the insulating plate. The length and width of the insulating plate are both greater than the length and width of the primary coil and the secondary coil, respectively.

[0011] Preferably, both the primary coil and the secondary coil are bonded and fixed to the insulating plate with insulating adhesive.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the primary coil and the secondary coil are connected by an isolator, so that the primary coil and the secondary coil are arranged in parallel and spaced apart, which changes the coil structure of the traditional transformer. According to the withstand voltage level, appropriate insulation materials are added to improve the withstand voltage value of the transformer. Moreover, the processing is simple, which solves the problems of complex process and high cost of traditional insulation steps. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of each part in Embodiment 1 of this utility model;

[0015] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0017] Figure 5 This is a schematic diagram of the structure of a traditional high-voltage isolation transformer.

[0018] In the diagram: 1 Primary coil, 1.1 Input terminal, 2 Secondary coil, 2.1 Output terminal, 3 Insulating shell, 3.1 Insulating layer, 4 Insulating plate. Detailed Implementation

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0020] Please see Figure 1-5 The present invention provides the following technical solution:

[0021] Example 1: A high-voltage isolation transformer includes a primary coil 1 and a secondary coil 2, which are arranged in parallel and spaced apart. The primary coil 1 is provided with an input terminal 1.1, and the secondary coil 2 is provided with an output terminal 2.1. The primary coil 1 and the secondary coil 2 are fixed by an isolator. The primary coil 1, the secondary coil 2, and the isolator are all provided with through holes for the iron core to pass through.

[0022] Specifically, the isolator is an insulating shell 3, and one side of the primary coil 1 and one side of the secondary coil 2 are both fitted inside the insulating shell 3;

[0023] The primary coil 1 and the secondary coil 2 are connected and fixed by the insulating shell 3. A gap is reserved between the primary coil 1 and the secondary coil 2. According to the withstand voltage, the appropriate insulating material is selected so that the withstand voltage between each coil can reach the required value, and the installation is convenient.

[0024] Furthermore, an insulating layer 3.1 is filled between the primary coil 1, the secondary coil 2, and the insulating shell 3 to increase the insulation performance between the primary coil 1 and the secondary coil 2.

[0025] Example 2: A high-voltage isolation transformer, comprising a primary coil 1 and a secondary coil 2, characterized in that: the primary coil 1 and the secondary coil 2 are arranged in parallel and spaced apart, the primary coil 1 is provided with an input terminal 1.1, the secondary coil 2 is provided with an output terminal 2.1, the primary coil 1 and the secondary coil 2 are fixed by an isolator, and the primary coil 1, the secondary coil 2 and the isolator are all provided with through holes for the iron core to pass through;

[0026] Specifically, the isolating component is an insulating plate 4. One side of the primary coil 1 and one side of the secondary coil 2 are fixedly connected to the insulating plate 4. The length and width of the insulating plate 4 are both greater than the length and width of the primary coil 1 and the secondary coil 2, respectively.

[0027] The primary coil 1 and the secondary coil 2 are connected and fixed by the insulating plate 4. According to the withstand voltage level, the appropriate insulating material can be selected so that the withstand voltage between each coil reaches the required value, and the installation is convenient.

[0028] It changes the coil structure of traditional transformers, making processing simple and convenient, saving time and effort, improving the withstand voltage of transformers, and simplifying processing, thus solving the problems of complex and costly traditional insulation processes.

[0029] Furthermore, both the primary coil 1 and the secondary coil 2 are bonded and fixed to the insulating plate 4 with insulating adhesive.

[0030] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents in the content of this utility model.

Claims

1. A high-voltage isolation transformer, comprising a primary coil (1) and a secondary coil (2), characterized in that: The primary coil (1) and the secondary coil (2) are arranged in parallel and spaced apart. The primary coil (1) is provided with an input terminal (1.1) and the secondary coil (2) is provided with an output terminal (2.1). The primary coil (1) and the secondary coil (2) are fixed by an isolator. The primary coil (1), the secondary coil (2) and the isolator are all provided with through holes for the iron core to pass through.

2. A high-voltage isolation transformer according to claim 1, characterized in that: The isolation element is an insulating shell (3), and one side of the primary coil (1) and one side of the secondary coil (2) are both fitted inside the insulating shell (3).

3. A high-voltage isolation transformer according to claim 2, characterized in that: An insulating layer (3.1) is filled between the primary coil (1), the secondary coil (2) and the insulating shell (3).

4. A high-voltage isolation transformer according to claim 1, characterized in that: The isolation component is an insulating plate (4). One side of the primary coil (1) and one side of the secondary coil (2) are fixedly connected to the insulating plate (4). The length and width of the insulating plate (4) are both greater than the length and width of the primary coil (1) and the secondary coil (2).

5. A high-voltage isolation transformer according to claim 4, characterized in that: The primary coil (1) and the secondary coil (2) are both bonded and fixed to the insulating plate (4) with insulating glue.

Images