CN219936803U

CN219936803U - Current transformer convenient to fix

Info

Publication number: CN219936803U
Application number: CN202321406091.XU
Authority: CN
Inventors: 霍海池; 刘瑞召
Original assignee: Huai'an Elstone Electric Co ltd
Current assignee: Huai'an Elstone Electric Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-10-31
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a current transformer convenient to fix, which relates to the technical field of current transformers and comprises a mounting plate, wherein the top of the mounting plate is fixedly connected with an insulating shell, the top of the insulating shell is rotationally connected with a butt joint frame, a compression bar is pushed to extrude a second spring, so that a limiting rod is separated from the inner side of a cavity, a wire of an electric device is arranged between the butt joint frame and the insulating shell under the action of the second spring, the limiting rod enters the inner side of the cavity, the distance between two arc clamps is adjusted, and the wire can be loosened or clamped, thereby solving the problems that the size of a circular ring formed by a first semi-ring and a second semi-ring of the current transformer is fixed, the thickness of the wire is possibly different in the actual use process, and therefore, the current transformer and the wire to be measured are not easy to fix or are not firm enough, and then the wire slides in the current transformer, so that the detected current fluctuates.

Description

Current transformer convenient to fix

Technical Field

The utility model relates to the technical field of current transformers, in particular to a current transformer convenient to fix.

Background

The transformer is an instrument for converting primary side large current into secondary side small current according to an electromagnetic induction principle to measure. The alternating current transformer consists of a closed iron core and windings. Its primary winding has few turns and is connected in series with the AC circuit to be measured.

The current transformer comprises a first semi-ring shell, a second semi-ring shell hinged with the first semi-ring shell and a connecting piece for connecting the first semi-ring shell and the second semi-ring shell, wherein two semi-rings are spliced into a ring to form a ring-shaped iron core, one semi-ring is wound with a secondary winding, a wire to be tested penetrates through the ring-shaped iron core to form a primary winding with one turn number, the two semi-rings are hinged, the opening and the closing of the iron core can be realized, the primary winding is connected in series after a circuit to be measured is disconnected, and the current transformer is convenient to install

However, the size of the ring formed by the first half ring and the second half ring of the current transformer is already fixed, and in the actual use process, the thickness of the wires may be different, so that the current transformer and the wires to be measured are not easy to fix or are not firm enough, and then the wires slide in the current transformer to cause the detected current to fluctuate.

Disclosure of Invention

The utility model aims at: in order to solve the problems of the background technology, the utility model provides a current transformer which is convenient to fix.

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a fixed convenient current transformer, includes the mounting panel, mounting panel top fixedly connected with insulating housing, insulating housing top rotation is connected with the butt joint frame, insulating housing and the inboard equal sliding connection of butt joint frame arc clamp, the cavity has been seted up to insulating housing top one side, the movable slot has been seted up to butt joint frame bottom one side, movable slot one side inner wall fixedly connected with dead lever, sliding connection has the slide bar on the dead lever, still the cover is equipped with spring two on the dead lever, spring two one end and slide bar fixed connection, spring two other ends and movable slot inner wall fixed connection, the fluting has been seted up at the cavity top, the fluting is kept away from spring two one side and is set up the inclined plane structure, slide bar and the inboard sliding connection of fluting, the slide bar bottom runs through the fluting and extends to cavity inboard and fixedly connected with gag lever post, cavity one side sliding connection has the depression bar, cavity inboard sliding connection has the impeller plate, depression bar one end and impeller plate one side fixed connection.

Further, two symmetrically distributed mounting holes are formed in the mounting plate.

Further, the insulating housing and the inner side of the butt joint frame are fixedly connected with threaded cylinders, two opposite ends of the threaded cylinders are connected with threaded rods in a threaded mode, the arc-shaped clamps are rotationally connected to the threaded rods, and two rotating rods which are symmetrically distributed are fixedly connected to the threaded rods.

Further, a plurality of evenly distributed through grooves are formed in the bottom of the insulating shell, and dust screens are fixedly connected to two ends of each through groove.

Further, one side of the bottom of the insulating shell is fixedly connected with a power line.

Further, a first spring is sleeved on the pressure rod, one end of the first spring is fixedly connected with the inner wall of the cavity, and the other end of the first spring is fixedly connected with the pushing plate.

Further, a limiting groove is formed in the other side of the top of the insulating shell, a limiting block is fixedly connected to the other side of the bottom of the butt joint frame, and the limiting block is clamped with the inner side of the limiting groove.

The beneficial effects of the utility model are as follows:

according to the utility model, the device is connected with the electrical equipment through the mounting plate, the compression bar is pushed, the pushing plate is driven to slide on the inner side of the cavity, the limiting rod is pushed to slide on the inner side of the groove, the sliding rod is further made to slide on the inner side of the groove, the spring II is further extruded, the limiting rod is separated from the inner side of the cavity, the butt-joint frame is pulled upwards, the butt-joint frame is further made to rotate at the top of the insulating shell, the wire of the electrical equipment is placed between the butt-joint frame and the insulating shell, the butt-joint frame is rotated, the limiting rod is further made to slide downwards on the inclined plane, the limiting rod enters the inner side of the cavity under the action of the spring II, the sliding rod is limited, the butt-joint frame is limited under the action of the fixing rod, the distance between the two arc clamps is regulated, and the wire is further loosened or clamped, so that the size of the circular ring formed by the first semi-ring and the second semi-ring of the current transformer is fixed, the thickness of the wire can be different in the actual use process, the current transformer and the wire to be fixed or the wire to be fixed firmly, and the current transformer is not easy to slide, and the current transformer is detected, and the current transformer is fluctuated.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3B according to the present utility model;

reference numerals: 1. a mounting plate; 2. a power line; 3. an insulating housing; 4. a through groove; 5. a dust screen; 6. a compression bar; 7. a docking frame; 8. a thread cylinder; 9. a limit groove; 10. a limiting block; 11. an arc clamp; 12. a threaded rod; 13. a rotating rod; 14. a pushing plate; 15. a cavity; 16. a first spring; 17. a limit rod; 18. a slide bar; 19. a movable groove; 20. a second spring; 21. and (5) grooving.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in figures 1-4, the current transformer convenient to fix comprises a mounting plate 1, an insulating housing 3 is fixedly connected to the top of the mounting plate 1, a butt joint frame 7 is rotationally connected to the top of the insulating housing 3, arc clamps 11 are slidingly connected to the inner sides of the insulating housing 3 and the butt joint frame 7, a cavity 15 is formed in one side of the top of the insulating housing 3, a movable groove 19 is formed in one side of the bottom of the butt joint frame 7, a fixed rod is fixedly connected to the inner wall of one side of the movable groove 19, a sliding rod 18 is slidingly connected to the fixed rod, a second spring 20 is sleeved on the fixed rod, one end of the second spring 20 is fixedly connected with the sliding rod 18, the other end of the second spring 20 is fixedly connected with the inner wall of the movable groove 19, a groove 21 is formed in the top of the cavity 15, one side of the groove 21 away from the second spring 20 is provided with an inclined surface structure, the sliding rod 18 is slidingly connected with the inner side of the groove 21, the bottom of the sliding rod 18 penetrates through the slot 21 to extend to the inner side of the cavity 15 and is fixedly connected with the limiting rod 17, one side of the cavity 15 is slidably connected with the pressing rod 6, the inner side of the cavity 15 is slidably connected with the pushing plate 14, one end of the pressing rod 6 is fixedly connected with one side of the pushing plate 14, in some embodiments, the device is connected with an electric device through the mounting plate 1, the pressing rod 6 is pushed to drive the pushing plate 14 to slide in the inner side of the cavity 15, the limiting rod 17 is pushed to slide, the sliding rod 18 slides in the inner side of the slot 21, the spring II 20 is extruded, the limiting rod 17 is separated from the inner side of the cavity 15, the abutting frame 7 is pulled upwards, the abutting frame 7 is rotated at the top of the insulating shell 3, a wire of the electric device is placed between the abutting frame 7 and the insulating shell 3, the abutting frame 7 is rotated, the limiting rod 17 slides downwards on an inclined plane under the action of the spring II 20, and then make gag lever post 17 get into cavity 15 inboard, carry out spacingly to slide bar 18, under the effect of dead lever, carry out spacingly to butt joint frame 7, adjust the distance between two arc presss from both sides 11, and then can loosen or press from both sides tightly to the wire, with this ring size that has solved the first semi-ring of current transformer and second semi-ring formation has been fixed, in actual use, the thickness of wire probably is different, thereby, will lead to current transformer and the wire that waits to measure be difficult fixed, or fixed not firm enough, then, the wire will slide in current transformer thereby lead to the undulant problem of current production that detects.

As shown in fig. 1 and 2, in some embodiments, two symmetrically distributed mounting holes are formed on the mounting plate 1, and the mounting plate 1 can be fixedly mounted through the mounting holes.

As shown in fig. 1, 2 and 4, in some embodiments, the inner sides of the insulating housing 3 and the docking frame 7 are fixedly connected with threaded cylinders 8, opposite ends of the two threaded cylinders 8 are connected with threaded rods 12 in a threaded manner, the arc clamps 11 are rotatably connected to the threaded rods 12, two rotating rods 13 which are symmetrically distributed are fixedly connected to the threaded rods 12, the rotating rods 13 are rotated, the threaded rods 12 are driven to rotate, and the threaded rods 12 are stretched at one ends of the threaded cylinders 8.

As shown in fig. 1 and fig. 2, in some embodiments, a plurality of through slots 4 are formed in the bottom of the insulating housing 3, and dust screens 5 are fixedly connected to two ends of each through slot 4, so that heat dissipation can be performed on the insulating housing 3 through the plurality of through slots 4, and dust can be prevented from entering the through slots 4 through the dust screens 5.

As shown in fig. 1, in some embodiments, a power cord 2 is fixedly connected to a bottom side of the insulating housing 3, and the device can be further connected to an external power source through the power cord 2.

As shown in fig. 3, in some embodiments, the compression bar 6 is sleeved with a first spring 16, one end of the first spring 16 is fixedly connected with the inner wall of the cavity 15, the other end of the first spring 16 is fixedly connected with the pushing plate 14, the pushing plate 14 slides inside the cavity 15, the first spring 16 is further stretched, and the pushing plate 14 slides reversely inside the cavity 15 under the action of the first spring 16.

As shown in fig. 2, in some embodiments, a limiting groove 9 is formed on the other side of the top of the insulating housing 3, a limiting block 10 is fixedly connected to the other side of the bottom of the docking frame 7, the limiting block 10 is clamped with the inner side of the limiting groove 9, and checking clamping is performed on the limiting block 10 and the limiting groove 9, so that the docking frame 7 and the insulating housing 3 are conveniently aligned and connected.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a fixed convenient current transformer, includes mounting panel (1), its characterized in that: the utility model discloses a device for fixing a compression bar, which comprises a mounting plate (1), an insulating shell (3) fixedly connected with the top of the mounting plate (1), a butt joint frame (7) is rotationally connected with the top of the insulating shell (3), arc clamps (11) are slidingly connected with the inner sides of the insulating shell (3) and the butt joint frame (7), a cavity (15) is formed in one side of the top of the insulating shell (3), a movable groove (19) is formed in one side of the bottom of the butt joint frame (7), a fixed rod is fixedly connected with one side inner wall of the movable groove (19), a sliding rod (18) is slidingly connected with the fixed rod, a spring II (20) is sleeved on the fixed rod, one end of the spring II (20) is fixedly connected with the sliding rod (18), the other end of the spring II (20) is fixedly connected with the inner wall of the movable groove (19), a groove (21) is formed in the top of the cavity (15), a groove (21) is formed in one side far away from the spring II (20) and is in an inclined structure, the inner side of the sliding rod (18) and the groove (21) is slidingly connected, the bottom of the sliding rod (18) extends to the inner side of the cavity (15) and is fixedly connected with the inner side of the groove (21), a compression bar (17) is pushed by the sliding rod (15), a compression bar (14) is connected with the inner side of the cavity (15), one end of the compression bar (6) is fixedly connected with one side of the pushing plate (14).

2. A fixed convenient current transformer as claimed in claim 1, wherein: two symmetrically distributed mounting holes are formed in the mounting plate (1).

3. A fixed convenient current transformer as claimed in claim 1, wherein: the novel cable connector is characterized in that the inner sides of the insulating shell (3) and the butt joint frame (7) are fixedly connected with threaded cylinders (8), two threaded rods (12) are connected to opposite ends of the threaded cylinders (8) in a threaded mode, the arc-shaped clamps (11) are rotatably connected to the threaded rods (12), and two rotating rods (13) which are symmetrically distributed are fixedly connected to the threaded rods (12).

4. A fixed convenient current transformer as claimed in claim 1, wherein: a plurality of through grooves (4) which are uniformly distributed are formed in the bottom of the insulating shell (3), and dust screens (5) are fixedly connected to two ends of each through groove (4).

5. A fixed convenient current transformer as claimed in claim 1, wherein: and one side of the bottom of the insulating shell (3) is fixedly connected with a power line (2).

6. A fixed convenient current transformer as claimed in claim 1, wherein: the compression bar (6) is sleeved with a first spring (16), one end of the first spring (16) is fixedly connected with the inner wall of the cavity (15), and the other end of the first spring (16) is fixedly connected with the pushing plate (14).

7. A fixed convenient current transformer as claimed in claim 1, wherein: limiting grooves (9) are formed in the other side of the top of the insulating shell (3), limiting blocks (10) are fixedly connected to the other side of the bottom of the butt joint frame (7), and the limiting blocks (10) are connected with the inner sides of the limiting grooves (9) in a clamping mode.