Outdoor current transformer

Abstract

The utility model discloses an outdoor current transformer which comprises a fixing base, the fixing base comprises a bottom plate and connecting plates, the two sides of the top of the bottom plate are fixedly connected with the connecting plates, an installation cavity is formed between the two connecting plates, and a transformer body is fixedly installed in the installation cavity. Wherein a connecting device is fixedly installed on the outer wall of one connecting plate, the connecting device is electrically connected with the mutual inductor body, and an insulating umbrella column is fixedly connected to the top of the mutual inductor body. According to the utility model, by changing the lead wire form of the outdoor current transformer, the mode that the connecting wires are led out from the bottom of the outdoor current transformer is changed into the mode that the connecting wires are led out from the side surface of the outdoor current transformer, and the traditional wiring mode that the connecting wires are mutually wound and connected is changed into a plugging mode; therefore, the wiring convenience is realized, and the problems in the background technology are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an outdoor current transformer. Background Technique

[0002] The current transformer is based on the principle of electromagnetic induction. The current transformer consists of a closed iron core and windings. Its primary winding has very few turns and is connected in series in the circuit where the current to be measured passes through. Therefore, it often has the full current of the circuit flowing through it. The secondary winding has more turns and is connected in series in the measuring instrument and the protection circuit. When the current transformer is working, its secondary circuit is always closed. Therefore, the impedance of the series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to a short circuit.

[0003] Before the existing outdoor current transformer is used, it is inconvenient to adjust its placement position. Before the placement position is confirmed, debugging work needs to be carried out on the outdoor current transformer. At this time, the connecting wire of the outdoor current transformer needs to be led out from the bottom of the outdoor current transformer and connected to the controller. And the design of this structure limits the connecting wire on the outdoor current transformer. Summary of the Invention

[0004] The purpose of the utility model is to provide an outdoor current transformer to solve the problem that the existing outdoor current transformer is inconvenient to adjust its placement position before use. Before the placement position is confirmed, debugging work needs to be carried out on the outdoor current transformer. At this time, the connecting wire of the outdoor current transformer needs to be led out from the bottom of the outdoor current transformer and connected to the controller. And the design of this structure limits the connecting wire on the outdoor current transformer.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An outdoor current transformer includes a fixed seat. The fixed seat includes a bottom plate and a connecting plate. Both sides of the top of the bottom plate are fixedly connected with the connecting plate, and an installation cavity is formed between the two connecting plates. A transformer main body is fixedly installed in the installation cavity. A connecting device is fixedly installed on the outer wall of one of the connecting plates, and the connecting device is electrically connected with the transformer main body. An insulating umbrella column is fixedly connected to the top of the transformer main body. The connecting device includes a connecting seat and a plugging device. The connecting seat is fixedly connected to the outer wall of the connecting plate. A connecting cavity is formed on the surface of the connecting seat. A plugging device is arranged in the connecting cavity. The plugging device includes a plugging block and a plugging plate. A connecting hole is formed on the surface of the plugging block, and a screw passes through the connecting hole and is threadedly connected to the inner wall of the installation cavity. A plugging cavity is formed on the surface of the plugging block. A plugging plate is fixedly installed on the inner wall of the plugging cavity. A plurality of plugging holes are formed on the surface of the plugging plate. A wiring hole is formed on the bottom surface of the connecting seat, and the wiring hole is communicated with the plugging cavity.

[0006] Preferably, a plurality of threaded holes are formed in the bottom surface of the bottom plate.

[0007] Advantageous Effects

[0008] Compared with the existing technology, the advantageous effects of the present utility model are as follows:

[0009] By changing the lead form of the outdoor current transformer, the present utility model changes the way of leading the connecting wire from the bottom of the outdoor current transformer to the way of leading it from the side of the outdoor current transformer, and also changes the traditional wiring method of winding the connecting wires together into a plug-in method, thereby realizing the convenience of wiring and effectively solving the problems raised in the background art. Description of the Drawings

[0010] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0011] Figure 2 is a schematic diagram of the structure of the connecting device of the present utility model.

[0012] 1. Fixed seat; 2. Bottom plate; 3. Connecting plate; 4. Installation cavity; 5. Transformer body; 6. Insulating umbrella column;

[0013] 7. Connecting device; 21. Threaded hole; 71. Connecting seat; 72. Connecting cavity; 73. Plug-in device;

[0014] 74. Plug-in hole; 75. Wiring hole; 76. Connecting hole; 731. Plug-in block; 732. Plug-in cavity;

[0015] 733. Plug-in plate. Detailed Embodiments

[0016] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present utility model fall within the protection scope of the present utility model.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0018] As Figure 1-2 It is a schematic structural diagram of an outdoor current transformer in a preferred embodiment of the present utility model. In this embodiment, an outdoor current transformer includes a fixed seat 1. The fixed seat 1 includes a bottom plate 2 and a connecting plate 3. The connecting plates 3 are fixedly connected to both sides of the top of the bottom plate 2, and an installation cavity 4 is formed between the two connecting plates 3. A transformer main body 5 is fixedly installed in the installation cavity 4, thereby realizing the protection of the transformer main body 5. A connecting device 7 is fixedly installed on the outer wall of one of the connecting plates 3, and the connecting device 7 is electrically connected to the transformer main body 5. Thus, after a connecting wire is plugged into the connecting device 7, the normal operation of the transformer main body 5 can be realized. An insulating umbrella column 6 is fixedly connected to the top of the transformer main body 5; with the above structural design, the lead form of the outdoor current transformer is changed, and the way of leading the connecting wire from the bottom of the outdoor current transformer is changed to the way of leading it from the side of the outdoor current transformer, effectively solving the problems raised in the background technology.

[0019] In this embodiment, the connecting device 7 includes a connecting seat 71 and a plugging device 73. The connecting seat 71 is fixedly connected to the outer wall of the connecting plate 3. A connecting cavity 72 is formed on the surface of the connecting seat 71. The plugging device 73 is arranged in the connecting cavity 72. The plugging device 73 includes a plugging block 731 and a plugging plate 733. A connecting hole 76 is formed on the surface of the plugging block 731, and a screw passes through the connecting hole 76 and is threadedly connected to the inner wall of the installation cavity 4, thereby realizing the fixing of the plugging block 731 and facilitating replacement during later use. A plugging cavity 732 is formed on the surface of the plugging block 731, and a plugging plate 733 is fixedly installed on the inner wall of the plugging cavity 732. A plurality of plugging holes 74 are formed on the surface of the plugging plate 733; with the above structural design, the traditional wiring method is replaced. The traditional wiring method is to connect by winding the connecting wires with each other, and the present utility model also changes it to a plugging method, thereby realizing the convenience of wiring.

[0020] In this embodiment, a wiring hole 75 is formed in the bottom surface of the connection base 71, and the wiring hole 75 communicates with the socket cavity 732. Due to different usage environments, two wiring methods are adopted in this structural design. For example, if the socket connection structure cannot be used, the wiring hole 75 is used to guide the connection wire. In addition, if the socket connection structure is used, the wiring hole 75 can be used to discharge impurities such as liquid in the socket cavity 732.

[0021] In this embodiment, a plurality of threaded holes 21 are formed in the bottom surface of the bottom plate 2. Through this structural design, the traditional bolt connection is replaced. The threaded connection method only requires the cooperation of multiple tools to complete. However, adopting the structure of the present utility model simplifies the fixation during the installation of the outdoor current transformer and is convenient for operation.

[0022] The above content further elaborates on the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as falling within the protection scope determined by the claims submitted for the present utility model.

Claims

1. An outdoor current transformer, comprising a fixing base (1), characterized in that: The fixing seat (1) comprises a bottom plate (2) and a connecting plate (3), the connecting plates (3) are fixedly connected to both sides of the top of the bottom plate (2), and an installation cavity (4) is formed between the two connecting plates (3), a transformer body (5) is fixedly installed in the installation cavity (4), a connecting device (7) is fixedly installed on the outer wall of one of the connecting plates (3), and the connecting device (7) is electrically connected to the transformer body (5), an insulating umbrella column (6) is fixedly connected to the top of the transformer body (5), the connecting device (7) comprises a connecting seat (71) and a plug-in device (73), the connecting seat (71) is fixedly connected to the outer wall of the connecting plate (3), and a connecting hole (73) is provided on the surface of the connecting seat (71). A connecting cavity (72), wherein a plug-in device (73) is arranged in the connecting cavity (72), wherein the plug-in device (73) comprises a plug-in block (731) and a plug-in board (733), wherein a connecting hole (76) is provided on the surface of the plug-in block (731), and the connecting hole (76) is threadedly connected to the inner wall of the installation cavity (4), wherein a plug-in cavity (732) is provided on the surface of the plug-in block (731), and a plug-in board (733) is fixedly installed on the inner wall of the plug-in cavity (732), and a plurality of connecting holes (74) are provided on the surface of the plug-in board (733), and a wiring hole (75) is provided on the bottom surface of the connecting seat (71), and the wiring hole (75) is communicated with the connecting cavity (732).

2. An outdoor current transformer according to claim 1, characterized in that: The bottom surface of the bottom plate (2) is provided with a plurality of threaded holes (21).

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