Open type current transformer

Abstract

The utility model relates to an open type current transformer which comprises a base and a middle cover, the same sides of the middle cover and the base are connected in a rotating mode through a rotating assembly, and meanwhile the other sides of the middle cover and the base are connected in a buckling mode through a buckling assembly. The utility model has the advantages of simple installation and operation and strong adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of mutual inductors, in particular to an open-type current mutual inductor. Background Art

[0002] Open-type current transformers are mainly used in power distribution system renovation projects. There is no need to remove the primary busbar and they can be operated under power without affecting customers' normal power consumption.

[0003] When installing an open-type current transformer, it is necessary to open a threaded hole on the mounting plate and install the open-type current transformer on the mounting plate by bolts; however, opening the threaded hole on the mounting plate requires high-altitude work, which is inconvenient to operate, and opening the threaded hole will cause damage to the mounting plate, which is not convenient for the installation of the open-type current transformer.

[0004] After searching, the patent: an open-type current transformer that is easy to install (CN201910536487.8), the transformer body is a split type setting, a through hole for the wire to pass through is left between the upper and lower parts of the transformer body, and a fixing piece for opening or closing the through hole is set between the upper and lower parts; an elastic band is set on one side of the lower part, the elastic band goes around the bottom end of the lower part and is detachably connected to the other side of the lower part, and a detachable part is set at the detachable connection between the elastic band and the lower part. The above structure can only be connected and fixed in a single way, and its applicability is relatively narrow.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a new type of open-type current transformer with a new structure to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide an open-type current transformer.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An open-type current transformer comprises a base and a middle cover, wherein the middle cover is rotatably connected to the same side of the base through a rotating assembly, and the middle cover is buckled to the other side of the base through a buckle assembly;

[0009] The rotating assembly includes a rotating connecting plate installed on the top of one side of the base, a rotating boss for embedding in the rotating center hole is connected to the outer side of the rotating connecting plate, and also includes a rotating limiting groove opened at the bottom of one side of the middle cover, a rotating center hole for embedding in the rotating boss is opened on one side of the rotating limiting groove, the rotating connecting plate is inserted into the rotating limiting groove, and the rotating boss is embedded in the rotating center hole;

[0010] The buckle assembly includes a boss buckle installed at the bottom of the other side of the middle cover, and also includes a buckle strip installed at the top of the other side of the base. The buckle strip is provided with a buckle groove, and the buckle groove is buckled with the boss buckle.

[0011] Preferably, in the open-type current transformer, a deformation groove is provided on the rotating connecting plate.

[0012] Preferably, in the open-type current transformer, a guide chamfer block is provided on the top of the buckle strip.

[0013] Preferably, in the open-type current transformer, a tie block is connected to the side of the middle cover, and a tie opening is provided on the tie block.

[0014] Preferably, in the open-type current transformer, the rotating connecting plate and the base are an integrally formed structure.

[0015] Preferably, in the open-type current transformer, a guide rail boss for clamping the guide rail is connected to the bottom side of the base.

[0016] Preferably, in the open-type current transformer, the rotating boss and the rotating connecting plate are an integrally formed structure.

[0017] By means of the above solution, the utility model has at least the following advantages:

[0018] 1. The utility model can realize a variety of installation methods, and can be installed by guide rails or by cable ties.

[0019] 2. The production and assembly of the utility model is relatively simple and effortless. Since the deformation is very small, the repair and utilization rate of the entire shell is very high.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 yes Figure 1 Schematic diagram from another perspective;

[0024] Figure 3 yes Figure 1 A cross-sectional view of

[0025] Figure 4 It is a structural schematic diagram of the middle cover of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the base of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] Example

[0030] like Figures 1 to 5 As shown, an open-type current transformer comprises a base 2 and a middle cover 1, wherein the middle cover 1 is rotatably connected to the same side of the base 2 via a rotating assembly, and the middle cover 1 is buckled to the other side of the base 2 via a snap assembly;

[0031] The rotating assembly includes a rotating connecting plate 26 installed on the top of one side of the base 2, and a rotating boss 23 for embedding in the rotating center hole 13 is connected to the outer side of the rotating connecting plate 26, and also includes a rotating limiting groove 14 opened at the bottom of one side of the middle cover 1, and a rotating center hole 13 for embedding the rotating boss 23 is opened on one side of the rotating limiting groove 14, and the rotating connecting plate 26 is inserted into the rotating limiting groove 14, and the rotating boss 23 is embedded in the rotating center hole 13;

[0032] The buckle assembly includes a boss buckle 11 installed at the bottom of the other side of the middle cover 1, and also includes a buckle strip 27 installed at the top of the other side of the base 2. The buckle strip 27 is provided with a buckle groove 21, and the buckle groove 21 is buckled with the boss buckle 11.

[0033] The rotating connecting plate 26 of the present invention is provided with a deformation groove 24, which is deformed during assembly so that the rotating boss 23 can be smoothly installed into the rotating center hole 13 in the middle cover 1, and the whole process is relatively simple.

[0034] A guide chamfer block 25 is provided on the top of the buckle strip 27 of the utility model, which can increase the smoothness of opening and closing.

[0035] The side of the middle cover 1 in the utility model is connected with a tie block, and the tie block is provided with a tie opening 12. A fixing method of the utility model is to realize the fixing of the utility model through a tie and a tie opening.

[0036] In the present invention, a guide rail boss 22 for clamping the guide rail is connected to the bottom side of the base 2. Another fixing method of the present invention is to select a corresponding connection method according to the current situation, which is a fixing method known to those skilled in the art.

[0037] In the present invention, the rotating connecting plate 26 and the base 2 are an integrally formed structure, and the rotating boss 23 and the rotating connecting plate 26 are an integrally formed structure.

[0038] The working principle of the utility model is as follows:

[0039] During the specific installation, the base is rotatably connected to the middle cover through the rotating assembly and fixed through the buckle assembly, which is simple and convenient to operate.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of this application, it should be noted that the terms "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of this application, it should also be noted 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An open-type current transformer, comprising a base (2) and a middle cover (1), characterized in that: The middle cover (1) and the base (2) are rotatably connected on the same side via a rotating assembly, and the middle cover (1) and the base (2) are buckled on the other side via a buckle assembly; The rotating assembly comprises a rotating connecting plate (26) mounted on the top of one side of the base (2), a rotating boss (23) for embedding into the rotating center hole (13) being connected to the outer side of the rotating connecting plate (26), and also comprises a rotating limiting groove (14) provided at the bottom of one side of the middle cover (1), a rotating center hole (13) for embedding into the rotating boss (23) being provided on one side of the rotating limiting groove (14), the rotating connecting plate (26) being inserted into the rotating limiting groove (14), and the rotating boss (23) being embedded into the rotating center hole (13); The buckle assembly comprises a boss buckle (11) mounted on the bottom of the other side of the middle cover (1), and also comprises a buckle strip (27) mounted on the top of the other side of the base (2), wherein a buckle groove (21) is formed on the buckle strip (27), and the buckle groove (21) is buckled with the boss buckle (11).

2. An open-type current transformer according to claim 1, characterized in that: The rotating connecting plate (26) is provided with a deformation groove (24).

3. An open-type current transformer according to claim 1, characterized in that: A guide chamfer block is provided on the top end of the buckle strip (27).

4. The open-type current transformer according to claim 1, characterized in that: A tie block is connected to the side of the middle cover (1), and a tie opening (12) is provided on the tie block.

5. The open-type current transformer according to claim 1, characterized in that: The rotating connecting plate (26) and the base (2) are an integrally formed structure.

6. An open-type current transformer according to claim 1, characterized in that: A guide rail boss (22) for clamping the guide rail is connected to the bottom side of the base (2).

7. An open-type current transformer according to claim 1, characterized in that: The rotating boss (23) and the rotating connecting plate (26) are an integrally formed structure.

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