Straight-through type rectangular current transformer

Abstract

The utility model relates to the technical field of straight-through type current transformers, in particular to a straight-through type rectangular current transformer which comprises a straight-through type rectangular current transformer body, an embedded block is connected to the lower side of the straight-through type rectangular current transformer body in a clamped mode, and a base is fixedly connected to the lower side of the embedded block. The inner side face of the straight-through type rectangular current transformer body is slidably connected with two clamping sliding seats used for fixing the embedded block, and the two clamping sliding seats are automatically clamped to the two ends of the embedded block through the elastic force of the first connecting spring and used for clamping and fixing a base at the position of the embedded block. Therefore, the whole straight-through type rectangular current transformer can be quickly assembled, then the positions of the two L-shaped sliding plates can be flexibly adjusted to adapt to installation positions with different requirements, and meanwhile the straight-through type rectangular current transformer can be fixed through cooperation with grooves and screws in the positions of the installation rotating plates. And the use flexibility of the straight-through type rectangular current transformer can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of through-type current transformers, specifically a through-type rectangular current transformer. Background Technology

[0002] A current transformer is a device used to measure current. It mainly uses a high-permeability iron core to block direct electrical contact between the coil connected to the measuring device and the circuit being measured, thereby converting high-voltage current into a low-voltage current signal.

[0003] The prior art discloses patent application number "CN202020108966.8", which describes a through-type current transformer, including a through-type current transformer body. A sealing mechanism I is provided on the front outer surface of the through-type current transformer body, and a sealing mechanism II is provided on the rear outer surface of the through-type current transformer body. With these fixing mechanisms, workers can complete the fixing installation without tools, and during later inspection and maintenance, only the fixing mechanism needs to be pulled out.

[0004] The through-type current transformer can only be conveniently installed in a designated location. However, in actual use, the base of the through-type rectangular current transformer is usually fixed to the bottom of the transformer with screws, making it impossible to quickly assemble the entire through-type rectangular current transformer. The installation is relatively cumbersome, and it is also inconvenient to flexibly adjust the installation position of the through-type rectangular current transformer, reducing its applicability and making it inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a through-type rectangular current transformer to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A through-type rectangular current transformer includes a through-type rectangular current transformer body, an embedded block snapped onto the lower side of the through-type rectangular current transformer body, a base fixedly connected to the lower side of the embedded block, and two clamping slides for fixing the embedded block slidably connected to the inner side of the through-type rectangular current transformer body. A first connecting spring is arrayed between the two clamping slides and the through-type rectangular current transformer body.

[0008] The bottom of the main body of the through-type rectangular current transformer is equipped with two clamps for fixing the base. The base is fixedly connected to two reinforcing slide rods. The outer surfaces of the two reinforcing slide rods are slidably connected to a first L-shaped slide plate and a second L-shaped slide plate. The top of the first L-shaped slide plate and the second L-shaped slide plate are rotatably connected to two mounting plates.

[0009] Preferably, an iron core is fixedly installed inside the body of the through-type rectangular current transformer, a sealing cover plate is snapped onto the front side of the body of the through-type rectangular current transformer, and a cross plate and a positioning rod for fixing the sealing cover plate are fixedly installed at the bottom inside the body of the through-type rectangular current transformer.

[0010] Preferably, two second connecting springs are fixedly installed between the first L-shaped slide plate and the second L-shaped slide plate, and a groove is provided on one side of each of the four mounting plates.

[0011] Preferably, one side of the clamping slide passes through the body of the through-type rectangular current transformer and extends to one side of the body of the through-type rectangular current transformer, and a displacement side plate is fixedly installed on one side of both clamping slides.

[0012] Preferably, the upper side of the embedded block has two circular grooves that are adapted to the locking rod, and the lower side of the locking rod is engaged with the upper side of the embedded block through the circular grooves.

[0013] Preferably, both ends of the embedded block are provided with embedded slots, which are adapted to the clamping slide, and one side of the clamping slide is engaged with both ends of the embedded block through the embedded slots.

[0014] Preferably, the main body of the through-hole rectangular current transformer is made of a plastic shell, and epoxy resin is fixedly connected inside the plastic shell. Unsoldered semi-finished products are fixedly installed inside the epoxy resin. A high-temperature wire terminal is installed on one side of the plastic shell, and a high-temperature wire body is fixedly connected to the lower side of the high-temperature wire terminal. A plastic terminal is fixedly installed on the lower side of the high-temperature wire body.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model utilizes the elastic force of the first connecting spring to allow the two clamping slides to automatically engage with both ends of the embedded block, thereby securing the base at the embedded block and enabling quick assembly of the entire through-type rectangular current transformer. This is convenient, time-saving, and labor-saving. Subsequently, the two L-shaped slides can be flexibly adjusted to adapt to different installation positions. In addition, the groove and screws at the mounting plate can fix the through-type rectangular current transformer, which helps to improve the flexibility of the through-type rectangular current transformer during use.

[0017] 2. This utility model uses a snap-fit ​​method to attach the sealing cover plate to the front of the through-type rectangular current transformer. Then, the cross plate and positioning rod can be used to further position the sealing cover plate to ensure the stability of the sealing cover plate during installation. This snap-fit ​​method makes it easy to install or remove the sealing cover plate and the base without the need for screws, so that the through-type rectangular current transformer can be quickly disassembled and repaired. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure of the middle clamping slide and the first connecting spring;

[0021] Figure 3 This is a utility model Figure 1 Installation diagram of the middle base and reinforcing slide bar;

[0022] Figure 4 This is a utility model Figure 3 Schematic diagram of the embedded block and base;

[0023] Figure 5 This is a utility model Figure 3 A schematic diagram of the structure of the first L-shaped sliding plate, the second L-shaped sliding plate, and the second connecting spring;

[0024] Figure 6 This is a utility model Figure 3 A schematic diagram of the structure of the plastic outer shell;

[0025] The attached figures are labeled as follows:

[0026] 1. Body of a through-type rectangular current transformer; 2. Embedded block; 3. Base; 4. Sealing cover plate; 5. Clamping slide; 6. Displacement side plate; 7. First connecting spring; 8. Reinforcing slide rod; 9. First L-shaped sliding plate; 10. Second L-shaped sliding plate; 11. Mounting rotary plate; 12. Second connecting spring; 13. Cross plate; 14. Iron core; 15. Positioning rod; 16. Locking rod; 66. Groove; 111. Embedded slot; 222. Circular groove; 100. High-temperature wire terminal wire; 20. Unsoldered semi-finished product; 30. Epoxy resin; 40. Plastic shell; 50. High-temperature wire body; 60. Plastic terminal. Detailed Implementation

[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 6 As shown, a through-type rectangular current transformer includes a through-type rectangular current transformer body 1, an insert block 2 is snapped into the lower side of the through-type rectangular current transformer body 1, a base 3 is fixedly connected to the lower side of the insert block 2, and two clamping slides 5 for fixing the insert block 2 are slidably connected to the inner side of the through-type rectangular current transformer body 1. By setting the clamping slides 5, the two clamping slides 5 can be moved and adjusted to facilitate the loading and unloading of the base 3, which is convenient to use. The two clamping slides 5 and the through-type rectangular current transformer body 1 are each connected in an array with a first connecting spring 7.

[0029] The bottom of the main body 1 of the through-type rectangular current transformer is equipped with two locking rods 16 for fixing the base 3. The locking rods 16 can be used to reinforce the installation of the embedded block 2, making the base 3 more stable and reliable for installation. The base 3 is fixedly connected to two reinforcing slide rods 8. The outer surfaces of the two reinforcing slide rods 8 are slidably connected to a first L-shaped slide plate 9 and a second L-shaped slide plate 10. The top of the first L-shaped slide plate 9 and the second L-shaped slide plate 10 are rotatably connected to two mounting plates 11. The four mounting plates 11 can be rotated and adjusted at will to adapt to different installation requirements and improve the convenience of installing the through-type rectangular current transformer.

[0030] The body 1 of the through-type rectangular current transformer is fixedly provided with an iron core 14. A sealing cover plate 4 is snapped onto the front side of the body 1. A cross plate 13 and a positioning rod 15 for fixing the sealing cover plate 4 are fixedly installed at the bottom inside the body 1. Through the installation and use of the cross plate 13 and the positioning rod 15, the cross plate 13 and the positioning rod 15 can enter into the interior of the sealing cover plate 4 to fix the sealing cover plate 4 and make the sealing cover plate 4 firmly installed.

[0031] Two second connecting springs 12 are fixedly installed between the first L-shaped slide plate 9 and the second L-shaped slide plate 10, and a groove 66 is provided on one side of each of the four mounting plates 11.

[0032] One side of the clamping slide 5 passes through the body 1 of the through-type rectangular current transformer and extends to one side of the body 1 of the through-type rectangular current transformer. Displacement side plates 6 are fixedly installed on one side of both clamping slides 5.

[0033] The upper side of the embedded block 2 has two circular grooves 222, which are adapted to the locking rod 16. The lower side of the locking rod 16 is engaged with the upper side of the embedded block 2 through the circular grooves 222.

[0034] Both ends of the embedded block 2 are provided with embedded slots 111, which are adapted to the clamping slide 5. One side of the clamping slide 5 is engaged with both ends of the embedded block 2 through the embedded slots 111.

[0035] The main body 1 of the through-hole rectangular current transformer is made of a plastic shell 40. The plastic shell 40 itself is undamaged, without glue residue, and the sealing surface is free of bubbles and exposed enameled wire. The glue surface does not protrude above the top of the plastic shell. Epoxy resin 30 is fixedly connected inside the plastic shell 40. Unsoldered semi-finished product 20 is fixedly installed inside the epoxy resin 30. A high-temperature wire terminal 100 is installed on one side of the plastic shell 40. A high-temperature wire body 50 is fixedly connected to the lower side of the high-temperature wire terminal 100. A plastic terminal 60 is fixedly installed on the lower side of the high-temperature wire body 50. The leads on the plastic shell 40 are not loose, the wire insulation is undamaged, and the terminals are undamaged and detached.

[0036] The working principle of the through-type rectangular current transformer provided by this utility model is as follows:

[0037] By moving the two displacement side plates 6 in opposite directions, the two displacement side plates 6 can drive the two clamping slides 5, which are equipped with the first connecting spring 7, to retract. Then, the embedded block 2 is snapped into the lower part of the body 1 of the through-type rectangular current transformer. Then, the two displacement side plates 6 are released so that the elastic force of the first connecting spring 7 can be used to make the two clamping slides 5 automatically snap into the two ends of the embedded block 2, which is used to snap into and fix the base 3 at the embedded block 2. Thus, the entire through-type rectangular current transformer can be quickly assembled. The operation is convenient, time-saving and labor-saving. Next, the first L-shaped slide plate 9 and the second L-shaped slide plate 10, which are equipped with the second connecting spring 12, are moved so that the two L-shaped slide plates can move in opposite directions or relative to each other. In this way, the two L-shaped slide plates can be flexibly adjusted to adapt to different installation positions. At the same time, with the groove 66 at the mounting plate 11 and the screw, the through-type rectangular current transformer can be fixed, which helps to improve the flexibility of the through-type rectangular current transformer during use.

[0038] By snapping the sealing cover 4 to the front of the body 1 of the through-type rectangular current transformer, the cross plate 13 and the positioning rod 15 can be used to further position the sealing cover 4, ensuring the stability of the sealing cover 4 during installation. This snap-fit ​​method facilitates the installation or removal of the sealing cover 4 and the base 3 without the need for screws, allowing for quick disassembly and maintenance of the through-type rectangular current transformer.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A toroidal rectangular current transformer comprising a toroidal rectangular current transformer body (1), characterized in that: The lower side of the through-type rectangular current transformer body (1) is clamped with an embedded block (2), the lower side of the embedded block (2) is fixedly connected with a base (3), the inner side of the through-type rectangular current transformer body (1) is slidably connected with two clamping slides (5) for fixing the embedded block (2), and the two clamping slides (5) and the through-type rectangular current transformer body (1) are arrayedly connected with first connecting springs (7). The bottom end of the through-type rectangular current transformer body (1) is provided with two clamping rods (16) for fixing the base (3), the inside of the base (3) is fixedly connected with two reinforcing slide rods (8), the outer surfaces of the two reinforcing slide rods (8) are slidably connected with symmetrically arranged first L-shaped slides (9) and second L-shaped slides (10), and the top ends of the first L-shaped slides (9) and the second L-shaped slides (10) are rotatably connected with two mounting rotating plates (11).

2. A split-core rectangular current transformer according to claim 1, characterized in that, The inside of the through-type rectangular current transformer body (1) is fixedly provided with an iron core (14), the front side of the through-type rectangular current transformer body (1) is clamped with a sealing cover plate (4), and the bottom end of the through-type rectangular current transformer body (1) is fixedly provided with a cross plate (13) and a positioning rod (15) for fixing the sealing cover plate (4).

3. A split-core rectangular current transformer according to claim 1, characterized in that, The first L-shaped slides (9) and the second L-shaped slides (10) are fixedly provided with two second connecting springs (12), and the sides of the four mounting rotating plates (11) are provided with grooves (66).

4. The split-core rectangular current transformer of claim 1, wherein, The clamping slides (5) penetrate through the through-type rectangular current transformer body (1) and extend to one side of the through-type rectangular current transformer body (1), and the sides of the two clamping slides (5) are fixedly provided with displacement side plates (6).

5. The split-core rectangular current transformer of claim 1, wherein, The upper side of the embedded block (2) is provided with two circular grooves (222), the circular grooves (222) are matched with the clamping rods (16), and the lower sides of the clamping rods (16) are clamped with the upper sides of the embedded blocks (2) through the circular grooves (222).

6. A split-core rectangular current transformer according to claim 1, characterized in that, Both ends of the embedded block (2) are provided with embedded clamping grooves (111), the embedded clamping grooves (111) are matched with the clamping slides (5), and the sides of the clamping slides (5) are clamped with the two ends of the embedded blocks (2) through the embedded clamping grooves (111).

7. The split-core rectangular current transformer of claim 1, wherein, The through-type rectangular current transformer body (1) is made of a plastic shell (40), the inside of the plastic shell (40) is fixedly connected with an epoxy resin (30), the inside of the epoxy resin (30) is fixedly provided with an unsoldered tin semi-finished product (20), one side of the plastic shell (40) is provided with a high-temperature wire terminal wire (100), the lower side of the high-temperature wire terminal wire (100) is fixedly connected with a high-temperature wire body (50), and the lower side of the high-temperature wire body (50) is fixedly provided with a plastic terminal (60).

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