CN210925653U

CN210925653U - Current transformer who has fuse that facilitates use

Info

Publication number: CN210925653U
Application number: CN201922274193.0U
Authority: CN
Inventors: 李慢来
Original assignee: JINHUA AOKAI ELECTRIC FACTORY
Current assignee: JINHUA AOKAI ELECTRIC FACTORY
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-07-03
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a current transformer with fuse that facilitates use, including base, current transformer main part, fuse, protection device, the base is connected through the bolt with the current transformer main part, the base is connected through the bolt with protection device, current transformer main part and fuse structure as an organic whole, protection device comprises seat, port case, slide bar, connecting rod, sliding plate, the seat is connected through the bolt with the port case, port case and slide bar sliding connection, slide bar and connecting rod looks welded connection, connecting rod and sliding plate fixed connection, port case and sliding plate looks sliding connection, box and solid fixed cylinder fixed connection. The utility model discloses set up protection device, promote the sliding plate through shifting up, can open the port case, carry out the port butt joint, when not, move down and promote the sliding plate, protect the port, prevent that the port from damaging because of the collision, preventing the dust entry port.

Description

Current transformer who has fuse that facilitates use

Technical Field

The utility model relates to a current transformer technical field specifically is a current transformer who has a fuse that facilitates use.

Background

The principle of the current transformer is based on the electromagnetic induction principle, the current transformer is composed of a closed iron core and a winding, the number of turns of a primary side winding of the current transformer is small, and the primary side winding is connected in series with a circuit of current to be measured, so that all current of the circuit always flows through the current transformer, the number of turns of a secondary side winding is large, the secondary side winding is connected in series with a measuring instrument and a protection loop, when the current transformer works, a secondary side loop of the current transformer is always closed, therefore, the impedance of the series coil of the measuring instrument and the protection loop is small, the working state of the current transformer is close to a short circuit, the current transformer converts large current.

In the prior art, the port of the equipment is easy to be exposed outside under the condition of no wiring, and is easy to collide during transportation to cause damage, and dust is easy to enter the port when no wiring is performed, so that internal parts of the equipment are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a current transformer with fuse that facilitates use to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a current transformer who has fuse that facilitates use, includes base, current transformer main part, fuse, protection device, the base is connected through the bolt with the current transformer main part, the base is connected through the bolt with protection device, the current transformer main part is structure as an organic whole with the fuse.

Preferably, the protection device comprises a base, a port box, a sliding rod, a connecting rod and a sliding plate, wherein the base is connected with the port box through a bolt, the port box is connected with the sliding rod in a sliding manner, the sliding rod is connected with the connecting rod in a welding manner, the connecting rod is fixedly connected with the sliding plate, and the port box is connected with the sliding plate in a sliding manner.

Preferably, the port case comprises box, solid fixed cylinder, piston rod, spring, control panel, fixed plate, port, wire, recess, box and solid fixed cylinder fixed connection, piston rod and box swing joint, the piston rod outside is located to the spring housing, gu fixed cylinder and piston rod swing joint, control panel is connected through the bolt with the box, control panel and fixed plate fixed connection, the port embedding is installed inside the fixed plate, the wire runs through inside the box and is connected with control panel, the recess is located on the box.

Preferably, the sliding plate is composed of a plate body, a sliding hole and a convex plate, the sliding hole is arranged on the plate body, and the plate body and the convex plate are of an integrated structure.

Preferably, the lower end face of the base is attached to the upper end face of the base, and the right end face of the port box is attached to the left end face of the current transformer body.

Preferably, the sliding rod is connected with the box body in a sliding mode, and the piston rod is connected with the sliding plate in a sliding mode.

Preferably, the convex plate is connected with the groove in a sliding mode, and the sliding hole is movably connected with the piston rod.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses set up protection device, promote the sliding plate through shifting up, can open the port case, carry out the port butt joint, when not, move down and promote the sliding plate, protect the port, prevent that the port from damaging because of the collision, preventing the dust entry port.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the protection device of the present invention;

FIG. 3 is an internal block diagram of the port box of FIG. 2 according to the present invention;

figure 4 is a left side view of the port box of figure 2 of the present invention;

fig. 5 is a right side view of the slide plate of fig. 2 according to the present invention.

In the figure: 1. a base; 2. a current transformer body; 3. a fuse; 4. a protection device; 401. a base; 402. a port box; 4021. a box body; 4022. a fixed cylinder; 4023. a piston rod; 4024. a spring; 4025. a control panel; 4026. a fixing plate; 4027. a port; 4028. a wire; 4029. a groove; 403. a slide bar; 404. a connecting rod; 405. a sliding plate; 4051. a plate body; 4052. a slide hole; 4053. a convex plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment:

the utility model provides a current transformer that has fuse that facilitates use, includes base 1, current transformer main part 2, fuse 3, protection device 4, base 1 is connected through the bolt with current transformer main part 2, base 1 is connected through the bolt with protection device 4, current transformer main part 2 and fuse 3 structure as an organic whole.

In this embodiment, the protection device 4 is composed of a seat 401, a port box 402, a sliding rod 403, a connecting rod 404, and a sliding plate 405, wherein the seat 401 is connected to the port box 402 by a bolt, the port box 402 is slidably connected to the sliding rod 403, the sliding rod 403 is welded to the connecting rod 404, the connecting rod 404 is fixedly connected to the sliding plate 405, and the port box 402 is slidably connected to the sliding plate 405.

In this embodiment, the port box 402 is composed of a box 4021, a fixed cylinder 4022, a piston rod 4023, a spring 4024, a control panel 4025, a fixed plate 4026, a port 4027, a lead 4028, and a groove 4029, the box 4021 is fixedly connected to the fixed cylinder 4022, the piston rod 4023 is movably connected to the box 4021, the spring 4024 is sleeved outside the piston rod 4023, the fixed cylinder 4022 is movably connected to the piston rod 4023, the control panel 4025 is connected to the box 4021 by a bolt, the control panel 4025 is fixedly connected to the fixed plate 4026, the port 4027 is embedded in the fixed plate 4026, the lead 4028 penetrates inside the box 4021 and is connected to the control panel 4025, and the groove 4029 is arranged on the box 4021.

In this embodiment, the sliding plate 405 includes a plate body 4051, a sliding hole 4052, and a protruding plate 4053, the sliding hole 4052 is provided in the plate body 4051, and the plate body 4051 and the protruding plate 4053 are integrated.

In this embodiment, the lower end surface of the seat 401 is attached to the upper end surface of the base 1, and the right end surface of the port box 402 is attached to the left end surface of the current transformer body 2.

In this embodiment, the sliding rod 403 is slidably connected to the housing 4021, and the piston rod 4023 is slidably connected to the sliding plate 405.

In this embodiment, the protruding plate 4053 is slidably connected to the groove 4029, and the sliding hole 4052 is movably connected to the piston rod 4023.

The working principle is as follows: when the connector is used, when an electrician connects the wiring of the port 4027, the electrician pulls the sliding plate 405 upwards, the sliding plate 405 slides on the port box 402 and drives the connecting rod 404 to move upwards at the same time, so that the sliding rod 403 moves upwards relative to the port box 402, the sliding plate 405 moves upwards, the sliding hole 4052 moves upwards relative to the piston rod 4023, the convex plate 4053 moves upwards relative to the groove 4029, the spring 4024 gives the piston rod 4023 right elastic force, the piston rod 4023 drives the sliding plate 405 to be tightly attached to the port box 402, the sliding plate 405 is ensured to be pulled upwards when the connector is used, and the sliding plate 405 is pulled downwards when the connector is not.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a current transformer with fuse that facilitates use, includes base (1), current transformer main part (2), fuse (3), protection device (4), its characterized in that:

the base (1) is connected with the current transformer main body (2) through bolts, the base (1) is connected with the protection device (4) through bolts, and the current transformer main body (2) and the fuse (3) are of an integrated structure.

2. A convenient to use fused current transformer according to claim 1 and wherein: the protection device (4) is composed of a seat (401), a port box (402), a sliding rod (403), a connecting rod (404) and a sliding plate (405), the seat (401) is connected with the port box (402) through bolts, the port box (402) is connected with the sliding rod (403) in a sliding mode, the sliding rod (403) is connected with the connecting rod (404) in a welding mode, the connecting rod (404) is fixedly connected with the sliding plate (405), and the port box (402) is connected with the sliding plate (405) in a sliding mode.

3. A convenient to use fused current transformer according to claim 2, wherein: the port box (402) is composed of a box body (4021), a fixed cylinder (4022), a piston rod (4023), a spring (4024), a control panel (4025), a fixed plate (4026), a port (4027), a lead (4028) and a groove (4029), the box body (4021) is fixedly connected with the fixed cylinder (4022), the piston rod (4023) is movably connected with the box body (4021), the spring (4024) is sleeved outside the piston rod (4023), the fixed cylinder (4022) is movably connected with the piston rod (4023), the control panel (4025) is connected with the box body (4021) through bolts, the control panel (4025) is fixedly connected with the fixing plate (4026), the port (4027) is embedded in the fixing plate (4026), the lead (4028) penetrates through the interior of the box body (4021) and is connected with the control panel (4025), and the groove (4029) is arranged on the box body (4021).

4. A convenient to use fused current transformer according to claim 2, wherein: the sliding plate (405) is composed of a plate body (4051), a sliding hole (4052) and a convex plate (4053), the sliding hole (4052) is arranged on the plate body (4051), and the plate body (4051) and the convex plate (4053) are of an integrated structure.

5. A convenient to use fused current transformer according to claim 2, wherein: the lower end face of the seat (401) is attached to the upper end face of the base (1), the right end face of the port box (402) is attached to the left end face of the current transformer main body (2), and the upper end face of the port box is attached to the lower end face of the base.

6. A convenient to use fused current transformer according to claim 3 wherein: the sliding rod (403) is connected with the box body (4021) in a sliding mode, and the piston rod (4023) is connected with the sliding plate (405) in a sliding mode.

7. A convenient to use fused current transformer according to claim 4 and wherein: the convex plate (4053) is connected with the groove (4029) in a sliding mode, and the sliding hole (4052) is movably connected with the piston rod (4023).