High-voltage mutual inductor convenient to disassemble and assemble

Abstract

The utility model provides a high-voltage mutual inductor convenient to disassemble and assemble, belongs to the technical field of electric power facilities, and aims to solve the problems that bolts on the surface of an existing high-voltage mutual inductor are exposed outside and are easy to rust, so that workers are inconvenient to disassemble the mutual inductor in the later period, and the gravity center of the high-voltage mutual inductor is high and the caster angle is small. The high-voltage mutual inductor comprises a mutual inductor body, a primary coil is installed on the left side of the upper end face of the mutual inductor body, and a secondary coil is installed on the right side of the upper end face of the mutual inductor body; and the base is fixedly installed in the middle of the lower end face of the mutual inductor body, and the left end and the right end of the base are each provided with two connecting grooves. According to the utility model, the protective cover plate is positioned on the upper end surface of the locking screw rod, and the protective cover plate can play a role in shielding the locking screw rod, so that the locking screw rod is prevented from being directly irradiated by sunlight and eroded by rainwater, and workers can conveniently disassemble the locking screw rod in the later period.

Description

Technical Field

[0001] This utility model belongs to the field of power facility technology, and more specifically, it relates to a high-voltage transformer that is easy to install and disassemble. Background Technology

[0002] High-voltage transformers can convert high voltage to low voltage, facilitating measurement, protection, and control. They also provide low-voltage signals to protection devices, such as overvoltage protection and undervoltage protection. When the voltage is abnormal, the protection devices can act quickly to disconnect the faulty circuit and prevent the accident from escalating.

[0003] However, high-voltage instrument transformers currently have the following two shortcomings in use:

[0004] First, high-voltage transformers use a lot of bolts during installation, and exposed bolts are prone to corrosion, which makes it inconvenient for workers to dismantle the transformers later.

[0005] Secondly, the high center of gravity and small back tilt angle of the high voltage transformer make it easy for the high voltage transformer to shake when it is touched by external force. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a high-voltage transformer that is easy to disassemble and assemble. This solves the problems of exposed bolts on the surface of existing high-voltage transformers, which are prone to corrosion, causing inconvenience for workers when disassembling the transformer later, and the high center of gravity and small back tilt angle of the high-voltage transformer, which makes the high-voltage transformer prone to shaking when subjected to external force.

[0007] The purpose and effect of this utility model of a high-voltage transformer that is easy to disassemble and assemble is achieved by the following specific technical means: a high-voltage transformer that is easy to disassemble and assemble, including a transformer body;

[0008] A primary coil is installed on the left side of the upper end face of the current transformer body, and a secondary coil is installed on the right side of the upper end face of the current transformer body.

[0009] The base is fixedly installed at the middle position of the lower end face of the transformer body, and there are two connecting grooves at the left and right ends of the base respectively;

[0010] The limiting plate has a rectangular plate structure as its main body. A limiting cylinder is fixedly installed at the middle position of the surface of the limiting plate. The lower end face of the limiting cylinder is flush with the lower end face of the limiting plate. A locking screw is threaded inside the limiting cylinder.

[0011] The protective cover plate has a circular plate structure and is located above the locking screw.

[0012] Furthermore, a storage groove is provided at each of the left and right ends of the bottom surface of the connecting groove, and two sets of slots are provided at each of the left and right ends of the surface of the base.

[0013] Furthermore, the cross-section of the card slot is trapezoidal, and there are two card slots in each group, with the two card slots located at the two ends of the connecting slot respectively.

[0014] Furthermore, two locking blocks are symmetrically installed on the lower end face of the limiting plate, and the two locking blocks are respectively engaged in the locking slots.

[0015] Furthermore, the surface of the locking screw is provided with a second limiting groove, and the inner end face of the limiting cylinder is provided with four first limiting grooves in an annular shape, the width of the first limiting grooves being the same as that of the second limiting grooves.

[0016] Furthermore, a limiting strip is installed on the lower end face of the protective cover. When the second limiting groove and the first limiting groove are aligned with each other, the limiting strip is engaged in the first limiting groove and the second limiting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, the locking block is engaged in the slot to prevent the limiting plate from wobbling up and down. When the locking screw is driven into the fixed seat, some debris will be rotated out. This debris will be located between the base and the fixed seat, which may affect the stability of the transformer body. The bottom surface of the connecting groove has two storage slots. The debris rotated out by the locking screw will be distributed in the storage slots, thus ensuring that the base and the fixed seat are clean and tidy.

[0019] In addition, the inner end face of the limiting cylinder is equipped with four first limiting grooves in a ring shape, and the outer side of the locking screw is provided with a second limiting groove. When the worker tightens the locking screw, the second limiting groove can be aligned with the first limiting groove, and then the limiting strip at the lower end of the protective cover can be engaged in the first limiting groove and the second limiting groove, thereby fixing the locking screw and preventing the locking screw from rotating on its own.

[0020] In addition, the protective cover is located on the upper end of the locking screw. The protective cover can shield the locking screw from direct sunlight and rain, and facilitate the disassembly of the locking screw by workers later.

[0021] In addition, the primary coil is directly connected to the high-voltage circuit to transmit high-voltage current. The primary coil can be wound with copper wire and insulating paper is used to isolate the upper and lower layers of copper wire to improve the inter-turn and inter-layer field strength. The secondary coil is used to output a lower voltage current for use by measuring or protection equipment. Epoxy resin is filled between the secondary coil and the winding drum to form a high and low voltage shielding layer to prevent high voltage breakdown. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall device structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the transformer body and base structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the base structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the connection structure between the limiting plate and the base of this utility model.

[0026] Figure 5 This is a cross-sectional structural diagram of the locking screw of this utility model.

[0027] Figure 6 This is a schematic diagram of the limiting cylinder and locking screw structure of this utility model.

[0028] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0029] 1. Current transformer body; 101. Primary coil; 102. Secondary coil; 2. Base; 201. Connecting groove; 2011. Storage groove; 202. Slot; 3. Limiting plate; 301. Locking block; 302. Limiting cylinder; 3021. First limiting groove; 4. Locking screw; 401. Second limiting groove; 5. Protective cover plate; 501. Limiting strip. Detailed Implementation

[0030] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0031] Example 1:

[0032] As attached Figure 1 To be continued Figure 6 As shown:

[0033] This utility model provides a high voltage transformer that is easy to assemble and disassemble, including a transformer body 1;

[0034] A primary coil 101 is installed on the left side of the upper end face of the current transformer body 1, and a secondary coil 102 is installed on the right side of the upper end face of the current transformer body 1.

[0035] Base 2 is fixedly installed at the middle position of the lower end face of the transformer body 1. There are two connecting grooves 201 at the left and right ends of the base 2 respectively.

[0036] Limiting plate 3, the main body of limiting plate 3 is a rectangular plate structure, a limiting cylinder 302 is fixedly installed in the middle of the surface of limiting plate 3, the lower end face of limiting cylinder 302 is flush with the lower end face of limiting plate 3, and a locking screw 4 is threaded inside the limiting cylinder 302.

[0037] The protective cover 5 has a circular plate structure and is located above the locking screw 4.

[0038] The bottom end face of the connecting groove 201 is provided with a storage groove 2011 at both ends, and the surface of the base 2 is provided with two sets of slots 202 at both ends. The storage groove 2011 can collect the debris generated by the rotating locking screw 4, ensuring that the base 2 and the fixed seat are clean and tidy.

[0039] The slot 202 has a trapezoidal cross-section. There are two slots 202 in each group. The two slots 202 are located at both ends of the connecting slot 201. Two blocks 301 are symmetrically installed on the lower end face of the limiting plate 3. The two blocks 301 are respectively engaged in the slots 202, which can prevent the limiting plate 3 from shaking up and down.

[0040] The locking screw 4 has a second limiting groove 401 on its surface, and the inner end face of the limiting cylinder 302 has four first limiting grooves 3021 in an annular shape. The width of the first limiting grooves 3021 is the same as that of the second limiting grooves 401. A limiting strip 501 is installed on the lower end face of the protective cover plate 5. When the second limiting groove 401 and the first limiting groove 3021 are aligned with each other, the limiting strip 501 is engaged in the first limiting groove 3021 and the second limiting groove 401. The limiting strip 501 at the lower end of the protective cover plate 5 is engaged in the first limiting groove 3021 and the second limiting groove 401, thereby fixing the locking screw 4 and preventing the locking screw 4 from rotating on its own. The protective cover plate 5 is located on the upper end face of the locking screw 4. The protective cover plate 5 can shield the locking screw 4, preventing the locking screw 4 from being exposed to direct sunlight and rainwater corrosion, and facilitating the disassembly of the locking screw 4 by workers later.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In this invention, the primary coil 101 is directly connected to the high-voltage circuit for transmitting high-voltage current. The primary coil 101 can be wound with copper wire, and insulating paper is used to isolate the upper and lower layers of copper wire to improve the inter-turn and inter-layer field strength. The secondary coil 102 is used to output a lower voltage current for use by measuring or protection equipment. Epoxy resin is filled between the secondary coil 102 and the winding drum to form a high- and low-voltage shielding layer to prevent high-voltage breakdown. A base 2 is installed on the lower end face of the transformer body 1, and two connecting grooves 2 are respectively opened at the left and right ends of the surface of the base 2. 01. When installing the base 2, the two locking blocks 301 at the lower end of the limiting plate 3 can be engaged in the locking slots 202 at both ends of the connecting groove 201. A limiting cylinder 302 is installed on the surface of the limiting plate 3, and a locking screw 4 is threaded inside the limiting cylinder 302. After the worker passes the locking screw 4 through the limiting cylinder 302 and weds it into the fixed seat, the base 2 can be fixed. The locking blocks 301 engaged in the locking slots 202 can prevent the limiting plate 3 from shaking up and down. The locking screw 4 is inserted into the fixed seat. When the locking screw 4 rotates, some debris will be rotated out. This debris will be located between the base 2 and the fixed seat, which can easily affect the stability of the transformer body 1. The bottom end face of the connecting groove 201 has two storage grooves 2011. The debris rotated out by the locking screw 4 will be distributed in the storage grooves 2011, thus ensuring that the base 2 and the fixed seat are clean and tidy. At the same time, the inner end face of the limiting cylinder 302 has four first limiting grooves 3021 installed in a ring shape, and the outer side of the locking screw 4 has a second limiting groove 401. The worker performs the locking screw 4... When tightening, the second limiting groove 401 can be aligned with the first limiting groove 3021, and then the limiting strip 501 at the lower end of the protective cover 5 can be engaged in the first limiting groove 3021 and the second limiting groove 401, thereby fixing the locking screw 4 and preventing the locking screw 4 from rotating on its own. The protective cover 5 is located on the upper end face of the locking screw 4, and the protective cover 5 can shield the locking screw 4, preventing the locking screw 4 from being exposed to direct sunlight and rainwater corrosion, and making it easier for workers to disassemble the locking screw 4 later.

Claims

1. A high-voltage transformer that is easy to install and disassemble, characterized in that: The utility model relates to a kind of transformer, including mutual inductor main body (1), the upper end face left side position of mutual inductor main body (1) is installed with primary coil (101), the upper end face right side position of mutual inductor main body (1) is installed with secondary coil (102);Base (2), the base (2) is fixedly installed in the lower end face middle position of mutual inductor main body (1), and the left and right ends of base (2) are respectively started with two connecting grooves (201);Limiting plate (3), the main body of the limiting plate (3) is rectangular plate structure, limiting plate (3) surface middle position is fixedly installed with limiting cylinder (302), the lower end surface of limiting cylinder (302) is flush with the lower end surface of limiting plate (3), and locking screw (4) is screw-connected in the inside of limiting cylinder (302);Protective cover plate (5), the main body of the protective cover plate (5) is circular plate type structure, and protective cover plate (5) is located in the upper position of locking screw (4).

2. The high voltage transformer according to claim 1, wherein: The bottom end face left and right ends of the connecting groove (201) are respectively provided with one receiving groove (2011), and the surface left and right ends of the base (2) are respectively provided with two groups of clamping grooves (202).

3. The easily dismountable high voltage transformer of claim 2, wherein: The cross section of the clamping groove (202) is trapezoidal structure, and the number of each group of clamping grooves (202) is two, and the two clamping grooves (202) are located at the two ends of the connecting groove (201).

4. The easily dismountable high voltage transformer of claim 1, wherein: The lower end surface of the limiting plate (3) is symmetrically provided with two clamping blocks (301), and the two clamping blocks (301) are clamped in the clamping groove (202) respectively.

5. The easily dismountable high voltage transformer of claim 1, wherein: The surface of the locking screw (4) is provided with a second limiting groove (401), and the inner end surface of the limiting cylinder (302) is annularly provided with four first limiting grooves (3021), and the first limiting groove (3021) and the second limiting groove (401) have the same width.

6. The easily dismountable high voltage transformer of claim 1, wherein: The lower end surface of the protective cover plate (5) is provided with a limiting strip (501), and when the second limiting groove (401) and the first limiting groove (3021) are aligned with each other, the limiting strip (501) is clamped in the first limiting groove (3021) and the second limiting groove (401).

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