Current transformer with leakage protection structure

Abstract

The utility model discloses a current transformer with a leakage protection structure, which comprises a base and a current transformer body, two groups of mounting holes are symmetrically formed in the top of the base in a penetrating manner, the current transformer further comprises a mounting component arranged above the base, and an adjusting component arranged in the base, the mounting assembly comprises a mounting seat arranged above the base, a connecting seat is fixedly mounted at the top of the mounting seat, the current transformer body is adaptively connected with the connecting seat, a mounting groove is formed in the mounting seat, a rotating rod is rotationally connected to the center in the mounting groove, a rotating part is fixedly mounted above the outer part of the rotating rod, and the rotating part is fixedly connected with the current transformer body. Sliding grooves are symmetrically formed in the two sides of the rotating piece, and column blocks are slidably connected into the sliding grooves. The current transformer body is convenient to disassemble and assemble by a user, maintenance and replacement are convenient, and convenience and practicability are improved.

Description

Technical Field

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

[0002] The current transformer is composed of a closed iron core and a winding. Its primary winding has very few turns and is connected in series in the circuit of the current to be measured. Therefore, the entire current of the circuit often flows through it. The secondary winding has more turns and is connected in series in the measuring instrument and the protection circuit. When the current transformer is working, its secondary circuit is always closed. Therefore, the impedance of the series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to a short circuit.

[0003] Publication No. CN217788170U discloses a current transformer. The patent sets a plastic ring and a limit assembly, installs the plastic ring in a circular hole, limits the plastic ring by the limit assembly, and then passes the wire through the plastic ring. Compared with the direct contact between the wire and the side wall of the circular hole, the friction force on the wire is reduced when the wire contacts the plastic ring. Therefore, the application can alleviate the problem of the wire being worn when passing through the circular hole of the current transformer. However, the patent still has the following problems in actual use:

[0004] By passing the wire through the plastic ring, the friction force on the wire is reduced compared to the direct contact between the wire and the side wall of the circular hole. Therefore, the present application can alleviate the problem of the wire being worn when passing through the circular hole of the current transformer. However, in actual use, the current transformer is mainly fixed by bolts or screws, which is more cumbersome during the installation process and is not convenient for the subsequent maintenance or replacement of the current transformer.

[0005] A current transformer with a leakage protection structure is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a current transformer with a leakage protection structure to solve the problem raised in the above-mentioned background technology that the friction force on the wire is reduced by passing the wire through a plastic ring and the wire is in contact with the plastic ring compared with direct contact between the wire and the side wall of the circular hole. Therefore, the present application can alleviate the problem of the wire being worn when passing through the circular hole of the current transformer. However, in actual use, the current transformer is mainly fixed by bolts or screws, which is cumbersome during the installation process and is not convenient for the current transformer to be repaired or replaced later.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current transformer with a leakage protection structure, comprising a base and a current transformer body;

[0008] Two groups of mounting holes are symmetrically opened on the top of the base;

[0009] Also includes:

[0010] A mounting assembly is disposed above the base, and an adjusting assembly is disposed inside the base;

[0011] The mounting assembly includes a mounting seat arranged above the base, a connecting seat is fixedly installed on the top of the mounting seat, the current transformer body is adaptively connected to the connecting seat, and a mounting groove is provided inside the mounting seat;

[0012] Among them, a rotating rod is rotatably connected to the inner center of the installation groove, and a rotating part is fixedly installed on the outer upper part of the rotating rod, and sliding grooves are symmetrically opened on both sides of the rotating part, and a column block is slidably connected to the inside of the sliding groove, and a movable rod is fixedly installed on the bottom of the column block, and fixed blocks are symmetrically installed on both sides of the inside of the installation groove, and the movable rod is slidably connected to the fixed block.

[0013] Preferably, a return spring is sleeved on one side of the outer side of the two movable rods, and one end of the return spring is fixedly connected to the fixed block, and the other end of the return spring is fixedly installed with a connecting block, and the connecting block is fixedly connected to the movable rod.

[0014] Preferably, the two movable rods are fixedly mounted with limiting rods at one end away from the column block, and the top of the mounting seat is symmetrically provided with through grooves above the mounting groove, and the limiting rods are slidably connected to the through grooves.

[0015] Preferably, a holder is symmetrically installed below both sides of the current transformer body, and a slot is opened on one side of the holder, and the limit rod is engaged with the slot.

[0016] Preferably, the adjustment assembly includes a movable block fixedly mounted on the bottom of the mounting base, and a movable groove is opened inside the base, and the movable block is slidably connected to the movable groove, and two groups of mounting rods are symmetrically mounted on both sides of the movable block, and the mounting rods are slidably connected to the base.

[0017] Preferably, a telescopic spring is sleeved on one side of the outer side of the two groups of mounting rods, and a movable sleeve is fixedly installed on one end of the telescopic spring, and the movable sleeve is slidably connected to the mounting rod, and a mounting block is fixedly installed on the other end of the telescopic spring, and the mounting block is fixedly connected to the mounting rod, and a U-shaped rod is fixedly installed on one side of the movable sleeve.

[0018] Preferably, a positioning block is symmetrically installed on one side of the movable sleeve close to the base, and two groups of positioning grooves are symmetrically opened on both sides of the base, and the positioning block is engaged and connected with the positioning groove.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: the current transformer body with a leakage protection structure is provided with an installation assembly above the base, which facilitates the user to disassemble and install the current transformer body, facilitates maintenance and replacement, and improves convenience and practicality. The specific contents are as follows:

[0020] 1. An installation component is set above the base. When the current transformer body is in use, a leakage protector is installed on the load side of the electrical system (i.e., the secondary side of the current transformer body). The leakage protector can monitor the current on the secondary side of the current transformer in real time. When abnormal current or leakage is detected, the power supply is immediately cut off to ensure personal and equipment safety. When installing the current transformer body, pull the limit rod on one side to move, so that the limit rod drives the movable rod to move. After the movable rod moves, the reset spring can be stretched through the connecting block, and the column block is driven to move after the movable rod moves. The column block can be connected to the sliding groove on the rotating part through the sliding connection. The rotating part is driven to rotate, which can push the column block on the other side to move, so that the limit rod on one side can be pulled to open the two limit rods at the same time, and then the current transformer body is placed inside the connecting seat, so that the limit rod is aligned with the card slot on the card seat, and then the limit rod reset spring is released to restore the deformation, so that the limit rod is engaged with the card slot to limit the power transformer body, and when the current transformer body is disassembled, the limit rod is pulled to move to make the current transformer body lose the limit, and the installation assembly facilitates the user to disassemble and install the current transformer body, facilitates maintenance and replacement, and improves convenience and practicality;

[0021] 2. An adjustment component is provided inside the base, and the base is fixed by a mounting hole. When adjusting the position of the current transformer body after installation, the two sets of U-shaped rods on both sides of the base are pulled to drive the movable sleeve to move. After the movable sleeve moves, the telescopic spring can be compressed, so that the positioning block on the movable sleeve is disengaged from the positioning groove, so that the movable block loses its limit, and the current transformer body can be pushed to drive the movable block to slide inside the movable groove, so that the position of the current transformer body can be adjusted. After adjustment, the U-shaped rod telescopic spring is released to restore the deformation, so that the positioning block is aligned with the other positioning groove, and the positioning block is engaged with the positioning groove to limit the movable block, thereby limiting the current transformer body. The adjustment component is convenient for users to adjust the position of the current transformer body, meet the use requirements of different situations, and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0023] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0024] Figure 3This is a schematic diagram of the cross-sectional structure of the installation assembly of the utility model from above;

[0025] Figure 4 This is a schematic diagram of the side sectional structure of the base of the utility model;

[0026] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0027] In the figure: 1. base; 101. current transformer body; 102. mounting hole; 2. mounting assembly; 201. mounting seat; 202. connecting seat; 203. mounting slot; 204. rotating rod; 205. rotating member; 206. sliding slot; 207. column block; 2071. movable rod; 208. fixed block; 209. reset spring; 210. connecting block; 211. limiting rod; 212. through slot; 213. clamping seat; 214. clamping slot; 3. adjustment assembly; 301. movable block; 302. movable slot; 303. mounting rod; 304. telescopic spring; 305. movable sleeve; 306. mounting block; 307. U-shaped rod; 308. positioning block; 309. positioning slot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5The utility model provides a technical solution: a current transformer with a leakage protection structure, including a base 1 and a current transformer body 101, the top of the base 1 is symmetrically penetrated with two groups of mounting holes 102, and also includes: a mounting assembly 2 is arranged above the base 1, and an adjustment assembly 3 is arranged inside the base 1, wherein the mounting assembly 2 includes a mounting seat 201 arranged above the base 1, and a connecting seat 202 is fixedly installed on the top of the mounting seat 201, and the current transformer body 101 is adaptively connected with the connecting seat 202, and a mounting groove 203 is opened inside the mounting seat 201, wherein the mounting groove 203 The inner center is rotatably connected with a rotating rod 204, and a rotating member 205 is fixedly installed on the outer upper part of the rotating rod 204, and sliding grooves 206 are symmetrically provided on both sides of the rotating member 205, and a column block 207 is slidably connected inside the sliding groove 206, and a movable rod 2071 is fixedly installed on the bottom of the column block 207, and fixed blocks 208 are symmetrically installed on both sides of the inner part of the installation groove 203, and the movable rod 2071 is slidably connected to the fixed block 208. The installation component 2 facilitates the user to disassemble and install the current transformer body 101, facilitates maintenance and replacement, and improves convenience and practicality.

[0030] A return spring 209 is sleeved on one side of the outer side of the two movable rods 2071, and one end of the return spring 209 is fixedly connected to the fixed block 208, and the other end of the return spring 209 is fixedly installed with a connecting block 210, and the connecting block 210 is fixedly connected to the movable rod 2071, so that the movable rod 2071 can automatically reset after moving. The two movable rods 2071 are fixedly installed with a limit rod 211 at one end away from the column block 207, and the top of the mounting seat 201 is symmetrically opened above the mounting groove 203. A through slot 212 is provided, and a limit rod 211 is slidably connected with the through slot 212 to limit the movement of the limit rod 211. A clamping seat 213 is symmetrically installed below both sides of the current transformer body 101, and a clamping slot 214 is opened on one side of the clamping seat 213, and the limit rod 211 is engaged with the clamping slot 214 to limit the current transformer body 101. The adjustment component 3 includes a movable block 301 fixedly installed at the bottom of the mounting seat 201, and a movable slot 302 is opened inside the base 1, and the movable block The movable groove 302 is slidably connected to the movable block 301, and two groups of mounting rods 303 are symmetrically installed on both sides of the movable block 301, and the mounting rods 303 are slidably connected to the base 1. The adjustment component 3 is convenient for users to adjust the position of the current transformer body 101 to meet the use requirements of different situations and improve practicality. The outer side of the two groups of mounting rods 303 is sleeved with a telescopic spring 304, and one end of the telescopic spring 304 is fixedly installed with a movable sleeve 305, and the movable sleeve 305 is slidably connected to the mounting rod 303. The other end of the telescopic spring 304 is fixedly installed with a mounting block 306, and the mounting block 306 is fixedly connected to the mounting rod 303, and a U-shaped rod 307 is fixedly installed on one side of the movable sleeve 305, so that the movable sleeve 305 can automatically reset after moving, and a positioning block 308 is symmetrically installed on one side of the movable sleeve 305 close to the base 1, and two groups of positioning grooves 309 are symmetrically opened on both sides of the base 1, and the positioning block 308 is engaged with the positioning groove 309 to limit the movable block 301.

[0031] Working principle: Before using this current transformer with leakage protection structure, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 5As shown, an installation component 2 is arranged above the base 1. When the current transformer body 101 is in use, a leakage protector is installed on the load side of the electrical system (i.e., the secondary side of the current transformer body 101). The leakage protector can monitor the current on the secondary side of the current transformer in real time. When abnormal current or leakage is detected, the power supply is immediately cut off to ensure the safety of people and equipment. When the current transformer body 101 is installed, the limit rod 211 on one side is pulled to move, so that the limit rod 211 drives the movable rod 2071 to move. After the movable rod 2071 moves, the reset spring 209 can be stretched through the connecting block 210, and the movable rod 2071 drives the column block 207 to move after the movement. The column block 207 can drive the rotating member 205 through the sliding connection with the sliding groove 206 on the rotating member 205. The movable member 205 rotates, and then the column block 207 on the other side can be pushed to move, so that the limiting rod 211 on one side can be pulled to make the two limiting rods 211 open at the same time, and then the current transformer body 101 is placed inside the connecting seat 202, so that the limiting rod 211 is aligned with the card slot 214 on the card seat 213, and then the limiting rod 211 is released and the reset spring 209 is restored to restore the deformation, so that the limiting rod 211 is engaged with the card slot 214 to limit the current transformer body 101, and when the current transformer body 101 is disassembled, the limiting rod 211 is pulled to move to make the current transformer body 101 lose the limit, and the installation assembly 2 facilitates the user to disassemble and install the current transformer body 101, facilitates maintenance and replacement, and improves convenience and practicality;

[0032] An adjustment component 3 is provided inside the base 1, and the base 1 is fixed by the mounting hole 102. When the position of the current transformer body 101 is adjusted after installation, the two groups of U-shaped rods 307 on both sides of the base 1 are pulled to drive the movable sleeve 305 to move. After the movable sleeve 305 moves, the telescopic spring 304 can be compressed, so that the positioning block 308 on the movable sleeve 305 is disengaged from the positioning groove 309, so that the movable block 301 loses the limit, and the current transformer body 101 can be pushed to drive the movable block 301 to slide inside the movable groove 302, so that the position of the current transformer body 101 can be adjusted. After adjustment, the U-shaped rod 307 is released and the telescopic spring 304 is restored to the deformation, so that the positioning block 308 is aligned with the other positioning groove 309, and the positioning block 308 is engaged with the positioning groove 309 to limit the movable block 301, and then the current transformer body 101 is limited. The adjustment component 3 is convenient for users to adjust the position of the current transformer body 101, meet the use requirements of different situations, and improve practicality.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A current transformer with a leakage protection structure, comprising a base (1) and a current transformer body (101); Two groups of mounting holes (102) are symmetrically formed through the top of the base (1); It is characterized in that Also includes: A mounting assembly (2) is arranged above the base (1), and an adjustment assembly (3) is arranged inside the base (1); The mounting assembly (2) comprises a mounting seat (201) arranged above the base (1), a connecting seat (202) is fixedly mounted on the top of the mounting seat (201), the current transformer body (101) is adaptively connected to the connecting seat (202), and a mounting groove (203) is provided inside the mounting seat (201); The inner center of the installation groove (203) is rotatably connected to a rotating rod (204), and a rotating member (205) is fixedly installed on the outer upper part of the rotating rod (204), and sliding grooves (206) are symmetrically provided on both sides of the rotating member (205), and a column block (207) is slidably connected to the inside of the sliding groove (206), and a movable rod (2071) is fixedly installed at the bottom of the column block (207), and fixed blocks (208) are symmetrically installed on both sides of the inner part of the installation groove (203), and the movable rod (2071) is slidably connected to the fixed block (208).

2. A current transformer with a leakage protection structure according to claim 1, characterized in that: A return spring (209) is sleeved on one side of the exterior of the two movable rods (2071), one end of the return spring (209) is fixedly connected to the fixed block (208), and a connecting block (210) is fixedly installed on the other end of the return spring (209), and the connecting block (210) is fixedly connected to the movable rod (2071).

3. The current transformer with leakage protection structure according to claim 1, characterized in that: The two movable rods (2071) are fixedly mounted with a limiting rod (211) at one end away from the column block (207), and a through slot (212) is symmetrically provided at the top of the mounting seat (201) above the mounting slot (203), and the limiting rod (211) is slidably connected to the through slot (212).

4. The current transformer with leakage protection structure according to claim 3, characterized in that: A clamping seat (213) is symmetrically installed below both sides of the current transformer body (101), a clamping slot (214) is provided on one side of the clamping seat (213), and the limiting rod (211) is clamped and connected with the clamping slot (214).

5. The current transformer with leakage protection structure according to claim 1, characterized in that: The adjustment assembly (3) comprises a movable block (301) fixedly mounted on the bottom of the mounting seat (201), a movable groove (302) is provided inside the base (1), the movable block (301) is slidably connected to the movable groove (302), two groups of mounting rods (303) are symmetrically mounted on both sides of the movable block (301), and the mounting rods (303) are slidably connected to the base (1).

6. The current transformer with leakage protection structure according to claim 5, characterized in that: A telescopic spring (304) is sleeved on one side of the exterior of the two groups of mounting rods (303), and a movable sleeve (305) is fixedly mounted on one end of the telescopic spring (304), and the movable sleeve (305) is slidably connected to the mounting rod (303), and a mounting block (306) is fixedly mounted on the other end of the telescopic spring (304), and the mounting block (306) is fixedly connected to the mounting rod (303), and a U-shaped rod (307) is fixedly mounted on one side of the movable sleeve (305).

7. The current transformer with leakage protection structure according to claim 6, characterized in that: The movable sleeve (305) is symmetrically provided with a fixed The base (1) has a positioning block (308), and two groups of positioning grooves (309) are symmetrically provided on both sides of the base (1). Furthermore, the positioning block (308) is engaged and connected with the positioning groove (309).

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