Laminated current transformer iron core

Abstract

The utility model discloses a laminated current transformer iron core, and particularly relates to the technical field of current transformer iron cores, the laminated current transformer iron core comprises an insulation sleeve and two silicon steel sheets, the two silicon steel sheets are both located in the insulation sleeve, the front side of the insulation sleeve is provided with a sealing assembly, and the sealing assembly comprises a sealing cover plate, a first sealing gasket and a second sealing gasket. The rear side of the sealing cover plate makes contact with the two silicon steel sheets, the first sealing gasket and the second sealing gasket are fixedly installed on the rear side of the sealing cover plate, and a fixing assembly is arranged between the sealing cover plate and the insulating sleeve. The two silicon steel sheets are placed in the insulation sleeve, then the insulation oil is poured into the insulation sleeve, the insulation oil can be used for insulation of the two silicon steel sheets and can also be used for heat dissipation of the two silicon steel sheets, the sealing cover plate is placed on the front side of the insulation sleeve, the insulation sleeve and the sealing cover plate are fixed through the fixing assembly, the structure is simple, and operation is convenient. And heat dissipation of the iron core is facilitated, and the working efficiency of the current transformer is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformer cores, and more specifically, to a laminated current transformer core. Background Art

[0002] The laminated current transformer core is a key component used in current transformers. Made of multiple stacked laminations, this structure offers high magnetic permeability and low hysteresis loss, effectively improving equipment efficiency and performance stability. Existing current transformer cores often utilize a one-piece, enclosed structure, making them difficult to replace. Over time, they become magnetized, reducing their effectiveness and making them less convenient to use.

[0003] After searching, the Chinese patent with announcement number CN218214947U discloses a current transformer core. The utility model adopts a split structural design through the provision of a shell, core body, top cover, side panels and movable buckles. The core can be freely installed and replaced, avoiding the magnetization of the core and reducing the use effect, thereby improving the convenience of using the core.

[0004] When the above-mentioned current transformer core is in use, the core body is provided in the outer shell and the top cover. The core generates a large amount of heat during operation, but it is inconvenient to dissipate the heat of the core, which will cause the temperature of the current transformer to be too high, thereby reducing the working efficiency of the current transformer. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a laminated current transformer core, which aims to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a laminated current transformer core, comprising an insulating sleeve and two silicon steel sheets, and the two silicon steel sheets are both located inside the insulating sleeve, a sealing assembly is provided on the front side of the insulating sleeve, the sealing assembly includes a sealing cover plate, a first sealing gasket and a second sealing gasket, the rear side of the sealing cover plate is in contact with the two silicon steel sheets, the first sealing gasket and the second sealing gasket are both fixedly installed on the rear side of the sealing cover plate, a fixing assembly is provided between the sealing cover plate and the insulating sleeve, the fixing assembly includes four U-shaped plates, two first screw rods and four extrusion sleeves.

[0007] Furthermore, the four U-shaped plates are respectively fixedly mounted on the opposite sides of the insulating sleeve and the sealing cover plate, one end of the two first screw rods respectively passes through the four U-shaped plates, and the four extrusion sleeves are respectively threadedly connected to the two first screw rods.

[0008] Furthermore, a plurality of clamping blocks are fixedly connected to the opposite sides of the insulating sleeve and the sealing cover plate, and one end of the plurality of clamping blocks extends into the interior of the two silicon steel sheets respectively.

[0009] It can be seen that in the above technical solution, the two silicon steel sheets are limited to prevent the two silicon steel sheets from deflecting.

[0010] Furthermore, a limiting assembly is provided inside the insulating sleeve, and the limiting assembly includes two second screw rods, two sliding rods, four sliding blocks and two pressing plates.

[0011] Furthermore, one end of the two second screw rods are movably connected to the insulating sleeve through bearings, one end of the two sliding rods are fixedly connected to the insulating sleeve, the four sliding blocks are movably mounted on the two second screw rods and the two sliding rods, and one side of the four sliding blocks is fixedly connected to the two pressure plates.

[0012] It can be seen that in the above technical solution, the two silicon steel sheets are further squeezed and fixed.

[0013] Furthermore, one end of each of the two second screw rods is fixedly connected to a rotating rod, and opposite ends of the two rotating rods pass through the insulating sleeve.

[0014] It can be seen that in the above technical solution, the second screw rod is rotated conveniently.

[0015] Furthermore, the outer movable sleeve of the insulating sleeve is provided with a mesh sleeve, the upper movable sleeve of the mesh sleeve is provided with two limiting sleeves, and the opposite ends of the two limiting sleeves are fixedly connected to the insulating sleeve and the sealing cover plate respectively.

[0016] It can be seen that in the above technical solution, the two rotating rods can be protected by the mesh sheath, and the two limiting sleeves can limit the deflection of the mesh sheath.

[0017] The technical effects and advantages of this utility model are:

[0018] 1. The utility model places two silicon steel sheets in an insulating sleeve, and then pours insulating oil into the insulating sleeve. The insulating oil can be used not only to insulate the two silicon steel sheets, but also to dissipate heat for the two silicon steel sheets. The sealing cover is placed on the front side of the insulating sleeve, and the insulating sleeve and the sealing cover are fixed by a fixing assembly. The structure is simple, the heat dissipation of the iron core is convenient, and the working efficiency of the current transformer is effectively improved.

[0019] 2. The utility model can drive the second screw to rotate by rotating the rotating rod, and the second screw can drive the two sliders and the pressure plate to move downward, and make the pressure plate contact with the two silicon steel sheets. Similarly, the position of the other pressure plate is adjusted, and the two silicon steel sheets are squeezed and fixed by the two pressure plates. The structure is simple and the overall stability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the assembly structure of the insulation sleeve and silicon steel sheet of the utility model;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the insulating sleeve and the clamping block of the utility model;

[0024] Figure 4 This is a schematic diagram of the assembly structure of the sealing component and the limiting sleeve of the utility model;

[0025] Figure 5 This is a schematic diagram of the assembly structure of the silicon steel sheet and the limiting component of the utility model.

[0026] In the figure: 1. Insulating sleeve; 2. Sealing assembly; 3. U-shaped plate; 4. First screw rod; 5. Extrusion sleeve; 6. Mesh sleeve; 7. Limit sleeve; 8. Silicon steel sheet; 9. Limit assembly; 10. Block; 201. Sealing cover plate; 202. First sealing gasket; 203. Second sealing gasket; 901. Second screw rod; 902. Sliding rod; 903. Sliding block; 904. Pressing plate; 905. Rotating rod. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] Refer to the instruction manual Figure 1-5The laminated current transformer core of this embodiment includes an insulating sleeve 1 and two silicon steel sheets 8, and the two silicon steel sheets 8 are both located inside the insulating sleeve 1. A sealing assembly 2 is provided on the front side of the insulating sleeve 1. The sealing assembly 2 includes a sealing cover plate 201, a first sealing gasket 202 and a second sealing gasket 203. The rear side of the sealing cover plate 201 is in contact with the two silicon steel sheets 8. The first sealing gasket 202 and the second sealing gasket 203 are both fixedly installed on the rear side of the sealing cover plate 201. A fixing assembly is provided between the sealing cover plate 201 and the insulating sleeve 1. The fixing assembly includes four U-shaped plates 3, two first screw rods 4 and four extrusion sleeves 5.

[0029] Furthermore, the four U-shaped plates 3 are respectively fixedly installed on the opposite sides of the insulating sleeve 1 and the sealing cover plate 201, one end of the two first screw rods 4 respectively passes through the four U-shaped plates 3, and the four extrusion sleeves 5 are respectively threadedly connected to the two first screw rods 4. The insulating sleeve 1 and the sealing cover plate 201 are fixedly connected on the opposite sides with multiple blocks 10, and one end of the multiple blocks 10 respectively extends into the interior of the two silicon steel sheets 8.

[0030] Furthermore, a limiting assembly 9 is provided inside the insulating sleeve 1, and the limiting assembly 9 includes two second screw rods 901, two sliding rods 902, four sliders 903 and two pressure plates 904. One end of the two second screw rods 901 is movably connected to the insulating sleeve 1 through a bearing, one end of the two sliding rods 902 is fixedly connected to the insulating sleeve 1, and the four sliders 903 are movably sleeved on the two second screw rods 901 and the two sliding rods 902, and one side of the four sliders 903 is fixedly connected to the two pressure plates 904 respectively. One end of the two second screw rods 901 is fixedly connected to a rotating rod 905, and the opposite ends of the two rotating rods 905 pass through the insulating sleeve 1, and the outer movable sleeve of the insulating sleeve 1 is provided with a mesh sleeve 6, and the mesh sleeve 6 is movably sleeved with two limiting sleeves 7, and the opposite ends of the two limiting sleeves 7 are respectively fixedly connected to the insulating sleeve 1 and the sealing cover plate 201.

[0031] Among them, rotating the rotating rod 905 can drive the second screw rod 901 to rotate. Since one of the sliders 903 is threadedly connected to the second screw rod 901, the slide rod 902 and the other slider 903 limit the rotation of the pressure plate 904. Therefore, the second screw rod 901 can drive the two sliders 903 and the pressure plate 904 to move downward, and make the pressure plate 904 contact with the two silicon steel sheets 8. Similarly, the position of the other pressure plate 904 is adjusted, and the two silicon steel sheets 8 are squeezed and fixed by the two pressure plates 904. The structure is simple and the overall stability is strong. The mesh sheath 6 is set on the insulating sleeve 1, and the two rotating rods 905 can be protected by the mesh sheath 6. At the same time, the two limit sleeves 7 can limit the deflection of the mesh sheath 6.

[0032] The method of using this embodiment is:

[0033] During use, the staff puts the two silicon steel sheets 8 into the insulating sleeve 1, and then pours insulating oil into the insulating sleeve 1. The insulating oil can not only be used for the insulation of the two silicon steel sheets 8, but also for the heat dissipation of the two silicon steel sheets 8. The sealing cover 201 is placed on the front side of the insulating sleeve 1, and the two silicon steel sheets 8 are squeezed through the sealing cover 201. The first screw rod 4 is inserted into the U-shaped plate 3 on the insulating sleeve 1, and the first screw rod 4 and the two U-shaped plates 3 are limited by the two extrusion sleeves 5. Similarly, the other two U-shaped plates 3 are limited and fixed, so that the insulating sleeve 1 is fixed to the sealing cover 201. At the same time, the first sealing gasket 202 and the second sealing gasket 203 can improve the sealing between the insulating sleeve 1 and the sealing cover 201, effectively prevent the leakage of insulating oil, have a simple structure, are convenient for heat dissipation of the iron core, and effectively improve the working efficiency of the current transformer. At the same time, multiple card blocks 10 are respectively inserted into the two silicon steel sheets 8, which can limit the two silicon steel sheets 8 to prevent the two silicon steel sheets 8 from deflecting.

[0034] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laminated current transformer core, comprising an insulating sleeve (1) and two silicon steel sheets (8), wherein the two silicon steel sheets (8) are both located inside the insulating sleeve (1), characterized in that: A sealing assembly (2) is provided on the front side of the insulating sleeve (1), and the sealing assembly (2) includes a sealing cover plate (201), a first sealing gasket (202), and a second sealing gasket (203). The rear side of the sealing cover plate (201) is in contact with two silicon steel sheets (8). The first sealing gasket (202) and the second sealing gasket (203) are fixedly mounted on the rear side of the sealing cover plate (201). A fixing assembly is provided between the sealing cover plate (201) and the insulating sleeve (1), and the fixing assembly includes four U-shaped plates (3), two first screw rods (4), and four extrusion sleeves (5).

2. The laminated current transformer core according to claim 1, characterized in that: The four U-shaped plates (3) are respectively fixedly mounted on the opposite sides of the insulating sleeve (1) and the sealing cover plate (201); one end of the two first screw rods (4) respectively passes through the four U-shaped plates (3); and the four extrusion sleeves (5) are respectively threadedly connected to the two first screw rods (4).

3. The laminated current transformer core according to claim 1, characterized in that: A plurality of clamping blocks (10) are fixedly connected to the opposite sides of the insulating sleeve (1) and the sealing cover plate (201), and one end of the plurality of clamping blocks (10) extends into the interior of the two silicon steel sheets (8) respectively.

4. The laminated current transformer core according to claim 1, characterized in that: A limiting assembly (9) is provided inside the insulating sleeve (1), and the limiting assembly (9) comprises two second screw rods (901), two sliding rods (902), four sliding blocks (903) and two pressing plates (904).

5. The laminated current transformer core according to claim 4, characterized in that: One end of each of the two second screw rods (901) is movably connected to the insulating sleeve (1) via a bearing, one end of each of the two slide rods (902) is fixedly connected to the insulating sleeve (1), and the four sliders (903) are movably mounted on the two second screw rods (901) and the two slide rods (902), and one side of the four sliders (903) is fixedly connected to the two pressure plates (904).

6. The laminated current transformer core according to claim 4, characterized in that: One end of each of the two second screw rods (901) is fixedly connected to a rotating rod (905), and the opposite ends of the two rotating rods (905) pass through the insulating sleeve (1).

7. The laminated current transformer core according to claim 1, characterized in that: The outer movable sleeve of the insulating sleeve (1) is provided with a mesh sleeve (6), and the movable sleeve on the mesh sleeve (6) is provided with two limiting sleeves (7), and the opposite ends of the two limiting sleeves (7) are fixedly connected to the insulating sleeve (1) and the sealing cover plate (201) respectively.

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