Mutual inductor shell convenient to mount and dismount

Abstract

The utility model provides a mutual inductor shell convenient to install and dismantle, which comprises a first shell and a second shell, the first shell and the second shell are both of a semi-arc structure, a first containing cavity is arranged in the first shell, a second containing cavity is arranged in the second shell, two sides of two ends of the first shell are respectively provided with an inserting groove, and the inserting grooves are connected with the first shell and the second shell. Clamping blocks are arranged on the surfaces of the inner walls of the inserting grooves, inserting plates are arranged on the two sides of the two ends of the second shell, clamping holes are formed in the surfaces of the inserting plates, positioning holes are formed in the two sides of openings in the two ends of the first containing cavity, positioning columns are arranged on the two sides of openings in the two ends of the second containing cavity, and sinking grooves are formed in the openings in the two ends of the first containing cavity. Convex plates are arranged at openings in the two ends of the second containing cavity. Compared with the prior art, the mode that mutual inductor shells are fixed through bolts is changed, workers can conveniently and rapidly install the mutual inductor shells, the shells can be conveniently installed and positioned, meanwhile, the sealing performance of the connecting positions is enhanced, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mutual inductors, and in particular to a mutual inductor housing which is convenient for installation and disassembly. Background Art

[0002] High-voltage cables are widely used in high-voltage power transmission and transformation networks, and most of them are installed by direct burial, tunnel or bridge. In order to fully understand the real-time status of the cable, online detection is usually adopted, that is, online monitoring equipment is installed, such as circulating current monitoring devices, cable induction energy extraction devices, etc., and each detection equipment is usually equipped with a transformer housing and a current transformer. The transformer housing and current transformer are instruments that convert the large current on the primary side into the small current on the secondary side for measurement based on the principle of electromagnetic induction. The transformer housing and current transformer are composed of a closed iron core and a winding. Its primary side winding has very few turns and is connected in series in the circuit of the current to be measured. In order to facilitate the installation of the transformer housing and the current transformer, an open-and-closed structure is usually adopted.

[0003] In the prior art, two semicircular transformers are usually matched and locked by bolts. After the two semicircular transformers are locked, the two end faces of the iron cores inside them match each other to form a closed-loop structure to form a complete transformer housing and current transformer. However, the bolt fixing structure requires multiple tightening of the bolts during installation or disassembly, which makes installation and disassembly more complicated; and during installation, the housings of the two matched semicircular transformers need to be supported. This process often causes the iron cores to be misaligned due to hand shaking, and continuous debugging is required to ensure that the two iron cores are accurately matched. The installation and debugging process is time-consuming and labor-intensive, which leads to poor practicality. Utility Model Content

[0004] The utility model provides a transformer housing which is convenient for installation and disassembly, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A transformer housing that is easy to install and disassemble comprises a first housing and a second housing, wherein the first housing and the second housing are both semicircular structures, a first accommodating chamber is provided inside the first housing, a second accommodating chamber is provided inside the second housing, plug-in slots are provided on both sides of both ends of the first housing, and blocks are provided on the inner wall surfaces of the plug-in slots, plug-in boards are provided on both sides of both ends of the second housing, and plug-in holes are provided on the surfaces of the plug-in boards, positioning holes are provided on both sides of the openings at both ends of the first accommodating chamber, positioning columns are provided on both sides of the openings at both ends of the second accommodating chamber, sinking grooves are provided at the openings at both ends of the first accommodating chamber, and convex plates are provided at the openings at both ends of the second accommodating chamber.

[0007] Preferably, the positioning column is inserted into the positioning hole, and the convex plate is inserted into the sinking groove. Preferably, the plug board is inserted into the plug slot, and the card block is inserted into the card hole. Preferably, the inner edge of the plug board is chamfered, and the edge of one side of the card block is chamfered.

[0008] Beneficial Effects

[0009] The above one or more technical solutions in a transformer housing that is convenient for installation and disassembly provided by an embodiment of the utility model have at least one of the following technical effects:

[0010] The utility model adopts the above technical scheme, during installation, the plug-in board is inserted into the plug-in slot, and the card block is embedded in the card hole to realize the installation and fixation between the first shell and the second shell, which solves the problem of bolt fixing in the prior art, which requires multiple times of screwing the bolts during installation and disassembly, resulting in cumbersome installation and disassembly, and improves the installation and disassembly efficiency; the positioning column is inserted into the positioning hole to play a positioning role when the first shell and the second shell are matched, which solves the problem of misalignment of the iron core due to hand shaking and improves the installation efficiency; the convex plate is embedded in the sinking groove to strengthen the sealing of the connection between the first shell and the second shell, avoid dust or moisture from entering the first shell and the second shell, and avoid affecting the use effect of the mutual inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the first shell structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the second housing structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the installation structure of the first shell and the second shell of the utility model;

[0015] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0016] 1. First shell; 2. Second shell; 3. First accommodating cavity; 4. Second accommodating cavity; 5. Plug-in slot; 6. Block; 7. Plug-in board; 8. Clamp hole; 9. Positioning hole; 10. Positioning column; 11. Sinking groove; 12. Protruding plate. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0018] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-4 As shown, it is a structural schematic diagram of a transformer housing that is convenient for installation and disassembly in a preferred embodiment of the utility model;

[0021] In this embodiment, a first shell 1 and a second shell 2 are included. Both the first shell 1 and the second shell 2 are semicircular structures. A first accommodating chamber 3 is provided inside the first shell 1, and a second accommodating chamber 4 is provided inside the second shell 2. The first accommodating chamber 3 and the second accommodating chamber 4 are used to install the core winding. Both sides of the two ends of the first shell 1 are provided with plug-in grooves 5, and the inner wall surfaces of the plug-in grooves 5 are provided with clamping blocks 6. Both sides of the two ends of the second shell 2 are provided with plug-in boards 7, and the surfaces of the plug-in boards 7 are provided with clamping holes 8. Both sides of the openings at both ends of the first accommodating chamber 3 are provided with positioning holes 9, and the positioning holes 9 are cylindrical hole structures. Both sides of the openings at both ends of the second accommodating chamber 4 are provided with positioning posts 10, and the positioning posts 10 are cylindrical structures. Both ends of the openings of the first accommodating chamber 3 are provided with sinking grooves 11, and both ends of the openings of the second accommodating chamber 4 are provided with convex plates 12.

[0022] In this embodiment, the positioning column 10 is inserted into the positioning hole 9. By inserting the positioning column 10 into the positioning hole 9, it plays a positioning role when the first shell 1 and the second shell 2 are matched, which solves the problem of misalignment of the iron core due to hand shaking and improves the installation efficiency; the convex plate 12 is embedded in the sinking groove 11. By embedding the convex plate 12 into the sinking groove 11, the sealing of the connection between the first shell 1 and the second shell 2 is strengthened to prevent dust or moisture from entering the first shell 1 and the second shell 2.

[0023] In this embodiment, the plug-in board 7 is inserted into the plug-in slot 5, and the clamping block 6 is embedded in the clamping hole 8. This structure realizes the clamping structure fixation, which solves the problem of bolt fixation in the prior art, which requires multiple times of tightening the bolts during installation and disassembly, making the installation and disassembly more complicated.

[0024] In this embodiment, the inner edge of the plug board 7 is chamfered, and the edge of one side of the card block 6 is chamfered. When installing, the plug board 7 is inserted into the plug slot 5, and the side of the plug board 7 with the chamfer contacts the side of the card block 6 with the chamfer. The plug board 7 is continuously pushed under the chamfered structure to expand to both sides, so that the card block 6 can be inserted into the card hole 8, thereby completing the installation and fixation between the first shell 1 and the second shell 2.

[0025] The utility model provides a transformer housing that is convenient to install and disassemble. Its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0026] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0027] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A transformer housing that is easy to install and disassemble, comprising a first housing (1) and a second housing (2), characterized in that: The first shell (1) and the second shell (2) are both semicircular structures. A first accommodating cavity (3) is provided inside the first shell (1), and a second accommodating cavity (4) is provided inside the second shell (2). Both sides of the two ends of the first shell (1) are provided with plug-in slots (5), and the inner wall surfaces of the plug-in slots (5) are provided with clamping blocks (6). Both sides of the two ends of the second shell (2) are provided with plug-in boards (7), and the surfaces of the plug-in boards (7) are provided with clamping holes (8). Both sides of the openings at both ends of the first accommodating cavity (3) are provided with positioning holes (9), and both sides of the openings at both ends of the second accommodating cavity (4) are provided with positioning columns (10). Both ends of the openings of the first accommodating cavity (3) are provided with sinking grooves (11), and both ends of the openings of the second accommodating cavity (4) are provided with convex plates (12).

2. A transformer housing that is easy to install and disassemble according to claim 1, characterized in that: The positioning column (10) is inserted into the positioning hole (9), and the convex plate (12) is embedded in the sinking groove (11).

3. The transformer housing that is easy to install and disassemble according to claim 1 is characterized in that: The plug-in board (7) is plugged into the plug-in slot (5), and the card block (6) is inserted into the card hole (8).

4. The transformer housing that is easy to install and disassemble according to claim 1 is characterized in that: The inner edge of the plug board (7) is provided with a chamfer, and the edge of one side of the clamping block (6) is provided with a chamfer.

Images