Current transformer coil with supporting protection function

Abstract

The utility model discloses a current transformer coil with support protection, which comprises a coil mechanism and a protection mechanism, the coil mechanism comprises an iron core, a coil wire wound on the outer side of the iron core, and the protection mechanism, the protection mechanism comprises a plurality of supporting frames connected to the outer side of the iron core in a sleeving mode, openings formed in the outer sides of the supporting frames, a plurality of rubber rods connected with the supporting frames and abutting plates connected with the rubber rods, the abutting plates are located on the inner side and the outer side of the iron core respectively, and every two adjacent abutting plates are attached to each other. According to the utility model, when the support frame is pressed, the rubber rod transmits the force to the pressing plate, and the inclined direction of the rubber rod is aligned with the slope, so that the transmitted force is transmitted to the slope position of the pressing plate, the deformation direction of the pressing plate is changed, and rigid indentations are prevented from being left on the coil wire.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power construction, in particular to a current transformer coil with support protection. Background Art

[0002] The principle of current transformers is based on electromagnetic induction. They consist of a closed iron core and windings. The primary winding has a small number of turns and is connected in series with the current being measured. Therefore, the entire current of the circuit always flows through it. The secondary winding has a larger number of turns and is connected in series with the measuring instrument and protection circuit. During operation, the secondary circuit of the current transformer is always closed, resulting in a very low impedance between the series coils of the measuring instrument and protection circuit, and the current transformer operates in a state close to a short circuit. The current transformer converts high primary current into low secondary current for use; the secondary circuit cannot be open-circuited.

[0003] Application number CN202321619262.7 discloses a current transformer coil with support protection, including a current transformer coil body, a support protection member, an adsorption groove and a side cover plate and other structures. The utility model is equipped with a current transformer coil body, a support protection member, a side cover plate, an adsorption groove, an adsorption member, a lower pad and an upper pressure plate. The support protection member is inserted laterally through the inner side of the current transformer coil body, and one side of the support protection member is closed by the side cover plate. The support protection member plays a supporting and protective role around the current transformer coil body, preventing the current transformer coil body from being deformed and damaged by pressure. However, during actual use, once the support protection member is hit, the upper pressure plate connected by the buffer spring will still contact the current transformer coil body, and then leave a rigid indentation on the coil body. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A current transformer coil with support protection includes a coil mechanism and a protection mechanism. The coil mechanism includes an iron core, a coil wire wound around the outside of the iron core, and a protection mechanism. The protection mechanism includes multiple support frames sleeved on the outside of the iron core, openings opened on the outside of the support frames, multiple rubber rods connected to the support frames, and pressure plates connected to the rubber rods. The multiple pressure plates are respectively located on the inside and outside of the iron core, and two adjacent pressure plates are in contact with each other.

[0007] By adopting the above technical solution, when the support frame is subjected to pressure, the rubber rod will transmit the force to the pressure plate. Since the inclination direction of the rubber rod is aligned with the slope, the transmitted force will be transmitted to the slope position of the pressure plate, changing the deformation direction of the pressure plate and avoiding leaving rigid indentations on the coil wire.

[0008] In a preferred example, the present invention can be further configured as follows: the multiple rubber rods on the inner side of the support frame are arranged in groups of two, that is, two groups of rubber rods are located at the top and bottom of the iron core respectively.

[0009] In a preferred example, the present invention can be further configured as follows: the two rubber rods in each group are arranged in an inward-facing position, and the diameter of the rubber rods is one third of the width of the pressure plate.

[0010] In a preferred example, the present invention can be further configured as follows: the outer side of the pressure plate is set to be sloped.

[0011] In a preferred example, the present invention can be further configured as follows: two circular pads are installed on the pressure plate, the two circular pads are vertically symmetrical about the rubber rod, and the circular pads are in contact with the outer wall of the iron core.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the present invention, when the support frame is subjected to pressure, the rubber rod will transmit the force to the pressure plate. Since the inclination direction of the rubber rod is aligned with the slope, the transmitted force will be transmitted to the slope position of the pressure plate, changing the deformation direction of the pressure plate and avoiding leaving rigid indentations on the coil wire.

[0014] 2. In the utility model, the support frame is opened from the opening, and then the support frame is put on the outside of the iron core. Then the multiple pressure plates in the support frame are respectively located at the inner edge and outer edge of the iron core, and then the two adjacent pressure plates are pressed against each other. The structure is simple and easy to load and unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the coil mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the protection mechanism of the utility model.

[0018] Reference numerals:

[0019] 100, coil mechanism; 110, iron core; 120, coil wire;

[0020] 200 , protection mechanism; 210 , support frame; 220 , opening; 230 , rubber rod; 240 , pressure plate; 300 , slope. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0022] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0023] A current transformer coil with support protection provided by some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0024] Example 1:

[0025] Combine Figure 1-3 As shown, the present invention provides a current transformer coil with support protection, comprising a coil mechanism 100 and a protection mechanism 200 , wherein the coil mechanism 100 comprises an iron core 110 and a coil wire 120 wound around the outside of the iron core 110 ;

[0026] The protection mechanism 200 includes a plurality of support frames 210 sleeved on the outside of the iron core 110, an opening 220 opened on the outside of the support frame 210, a plurality of rubber rods 230 connected to the support frame 210, and a pressure plate 240 connected to the rubber rod 230. The plurality of pressure plates 240 are respectively located on the inside and outside of the iron core 110, and two adjacent pressure plates 240 are in contact with each other.

[0027] Furthermore, the multiple rubber rods 230 on the inner side of the support frame 210 are arranged in groups of two, and are set to two groups. The two groups of rubber rods 230 are respectively located at the top and bottom of the iron core 110. With this layout design, the deformation direction of the pressure plate 240 can be changed, reducing the probability of the pressure plate 240 pressing on the coil wire 120.

[0028] Furthermore, the two rubber rods 230 in each group are arranged in an inner-eight configuration, and the diameter of the rubber rods 230 is one-third of the width of the pressure plate 240. With this layout design, the slopes 300 on the two pressure plates 240 can be controlled to press against each other.

[0029] Example 2:

[0030] Combine Figure 1 and Figure 3As shown, based on the first embodiment, the outer side of the pressing plate 240 is set to be in the shape of a slope 300. With this structural design, the contact area of the two pressing plates 240 can be increased, so that the two pressing plates 240 are firmly pressed against each other.

[0031] Example 3:

[0032] Combine Figure 3 As shown, in the above embodiment, two circular pads are installed on the pressure plate 240, and the two circular pads are vertically symmetrical about the rubber rod 230. The circular pads are in contact with the outer wall of the iron core 110. The provision of the circular pads further reduces the probability of the pressure plate 240 contacting the coil wire 120.

[0033] The working principle and usage process of the present invention are as follows: When the device is put into actual use, the support frame 210 is opened from the opening 220, and then the support frame 210 is put on the outside of the iron core 110. Then, the multiple pressure plates 240 in the support frame 210 are respectively located at the inner edge and outer edge of the iron core 110, and then the two adjacent pressure plates 240 are pressed against each other. Here, it is necessary to control the circular pads on the pressure plates 240 to fit the outer surface of the iron core 110 and then not contact the coil wire 120. Then, when the support frame 210 is subjected to pressure, the rubber rod 230 will transmit the force to the pressure plate 240. Since the tilt direction of the rubber rod 230 is aligned with the slope 300, the transmitted force will be transmitted to the position of the slope 300 of the pressure plate 240, thereby changing the deformation direction of the pressure plate 240 and avoiding leaving a rigid indentation on the coil wire 120.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A current transformer coil with support protection, characterized in that: include: A coil mechanism (100), the coil mechanism (100) comprising an iron core (110) and a coil wire (120) wound around the outside of the iron core (110); A protection mechanism (200) comprises a plurality of support frames (210) sleeved on the outside of the iron core (110), an opening (220) opened on the outside of the support frames (210), a plurality of rubber rods (230) connected to the support frames (210), and a pressure plate (240) connected to the rubber rods (230), wherein the plurality of pressure plates (240) are respectively located on the inside and outside of the iron core (110), and two adjacent pressure plates (240) are in contact with each other.

2. A current transformer coil with support protection according to claim 1, characterized in that: The plurality of rubber rods (230) inside the support frame (210) are arranged in groups of two, and are arranged in two groups. The two groups of rubber rods (230) are respectively located at the top and bottom of the iron core (110).

3. The current transformer coil with support protection according to claim 1, characterized in that: The two rubber rods (230) in each group are arranged in an inner-eight configuration, and the diameter of the rubber rods (230) is one third of the width of the pressing plate (240).

4. The current transformer coil with support protection according to claim 1, characterized in that: The outer side of the pressing plate (240) is configured to be in the shape of a slope (300).

5. The current transformer coil with support protection according to claim 1, characterized in that: Two circular pads are mounted on the pressure plate (240), the two circular pads are vertically symmetrical about the rubber rod (230), and the circular pads are in contact with the outer wall of the iron core (110).

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