CN215417781U

CN215417781U - Current transformer capable of dissipating heat quickly

Info

Publication number: CN215417781U
Application number: CN202121482736.9U
Authority: CN
Inventors: 韩克赢
Original assignee: Nantong Chuangtu Electronic Technology Co ltd
Current assignee: Nantong Chuangtu Electronic Technology Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-01-04
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a current transformer capable of quickly dissipating heat, which relates to the technical field of current transformers and comprises a main body device, an auxiliary mounting frame and a heat dissipation shell, wherein the current transformer is arranged in the main body device, the outer wall of the current transformer is fixedly connected with the heat dissipation shell, the bottom of the current transformer is fixedly connected with a mounting base, the back of the mounting base is fixedly connected with the auxiliary mounting frame, the outer surface of the heat dissipation shell is provided with a heat dissipation groove, and the right side of the heat dissipation groove is provided with a heat dissipation fin. The utility model solves the problems that the prior current transformer is not provided with a heat dissipation device in the operation process, the aging of coil wrappage is easy to cause due to the accumulation of overhigh heat for a long time, and the phenomenon of fire can occur under serious conditions by the aid of the air cooling device and the heat dissipation shell, and solves the problems that the installation firmness of the current transformer cannot be guaranteed, the current transformer is easy to loosen and is too troublesome in installation by the aid of the auxiliary installation frame.

Description

Current transformer capable of dissipating heat quickly

Technical Field

The utility model relates to the technical field of current transformers, in particular to a current transformer capable of quickly dissipating heat.

Background

The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary side winding of the transformer has few turns and is connected in a circuit of the current to be measured. Therefore, all current of a line always flows through the current transformer, the number of turns of the secondary side winding is large, the secondary side winding is connected in series in the measuring instrument and the protection loop, and the secondary side loop of the current transformer is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection loop is small, and the working state of the current transformer is close to a short circuit. The current transformer converts a large current on the primary side into a small current on the secondary side for measurement, and the secondary side can not be opened.

The current transformer adopts the electromagnetic induction principle, converts the primary large current of a power system into 5A or 1A small current, is used by secondary equipment such as protection, monitoring and measurement, and is important equipment for connecting primary and secondary.

But current transformer does not have the heat abstractor who is equipped with at the operation in-process, inside the narrow and small space of block terminal, primary side winding and secondary side winding operation duration overlength can produce the heat, the heat of long-time overhigh is piled up and is caused the coil strip of paper used for sealing ageing easily, the phenomenon of catching fire still can take place under the serious condition, there is certain potential safety hazard, and current transformer needs a staff to hold up current transformer with hand when the block terminal is installed, the installation of screw is carried out to the other hand, only fix in the block terminal through a screw, current transformer's fastness can not be ensured, it is not hard up to appear easily, and also too troublesome during the installation.

The following problems exist in the prior art:

1. the existing current transformer is not provided with a heat dissipation device in the operation process;

2. the installation firmness of the existing current transformer cannot be guaranteed, looseness easily occurs, and the installation is also too troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model provides a current transformer capable of quickly radiating heat, which aims to be provided with an air cooling device and a radiating shell and solves the problems that the existing current transformer is not provided with a radiating device in the operation process, a primary side winding and a secondary side winding generate heat when the operation time is overlong in a narrow space of a distribution box, the aging of a coil cover is easily caused by the accumulation of overhigh heat for a long time, the fire phenomenon can occur under serious conditions, and certain potential safety hazards exist; wherein another kind of purpose is in order to solve current transformer and need a staff hand current transformer when the block terminal installation, and the installation of screw is carried out to the other hand, only through a fix with screw in the block terminal, current transformer's fastness can not obtain the guarantee, appears not hard up easily, also too troublesome problem during the installation moreover to set up supplementary mounting bracket, consolidated horizontal pole and supplementary adjustable shelf.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a quick radiating current transformer, includes main part device, supplementary mounting bracket and heat dissipation casing, the inside of main part device is provided with current transformer, current transformer's outer wall fixedly connected with heat dissipation casing, current transformer bottom fixedly connected with installation base, the supplementary mounting bracket of back fixedly connected with of installation base.

The radiating groove has been seted up to the surface of heat dissipation casing, the right side of radiating groove is provided with the fin, the bottom of fin with the outer wall fixed connection of heat dissipation casing, current transformer's front fixed connection has the air cooling device, the through-wire groove has been seted up to the outer wall of air cooling device.

The technical scheme of the utility model is further improved as follows: one side fixedly connected with protection grid that air cooling device kept away from current transformer, the inside of supplementary mounting bracket is provided with first support, being close to of first support first mounting hole has been seted up to one side of installation base.

By adopting the technical scheme, the protective grid in the scheme has the effect of preventing excessive dust from entering the inside of the air cooling device and accumulating to influence the operation of equipment.

The technical scheme of the utility model is further improved as follows: one side fixedly connected with of first support consolidates the horizontal pole, the top swing joint of first support has the second support, the second support is kept away from the one end swing joint of first support has the third support.

By adopting the technical scheme, the third support of the auxiliary mounting frame in the scheme penetrates through the beam in the distribution box, is lapped on the beam through the second support, then is butted with the auxiliary movable frame and the first support, and finally is provided with the connecting screws in the first mounting hole and the second mounting hole, so that the convenience and the rapidness are realized.

The technical scheme of the utility model is further improved as follows: the bottom end of the third support is movably connected with an auxiliary movable frame, and one side, close to the auxiliary movable frame, of the third support is provided with a clamping groove.

Adopt above-mentioned technical scheme, the offer of draw-in groove in this scheme is for conveniently strengthening connecting block and third support and can laminating, conveniently passes the block terminal crossbeam.

The technical scheme of the utility model is further improved as follows: the top fixedly connected with of supplementary adjustable shelf consolidates the connecting block, the joint groove has been seted up to the upper surface of consolidating the connecting block, the center department in joint groove has seted up the second mounting hole.

Adopt above-mentioned technical scheme, the setting of the joint groove in this scheme is the joint of conveniently consolidating connecting block and first support, guarantees the steadiness of structure.

The technical scheme of the utility model is further improved as follows: the front of the current transformer is provided with a through wire hole, and the upper surface of the mounting base is fixedly connected with an electric connection end.

By adopting the technical scheme, the through wire hole in the scheme is formed by the current transformer for threading a conducting wire, so that the winding is realized.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the technical progress that:

1. the utility model provides a current transformer capable of quickly radiating heat, wherein under the double radiating action of an air cooling device and a radiating shell, the radiating function of the current transformer is met, meanwhile, a radiating groove and a radiating fin are arranged on the radiating shell, a through-wire groove is correspondingly formed in one circle of the outer wall of the air cooling device, and wind generated by the air cooling device is transmitted through the through-wire groove, so that the heat dissipation is accelerated.

2. The utility model provides a current transformer capable of quickly dissipating heat, based on the requirement of convenient installation, a third support of an auxiliary installation frame penetrates through a cross beam in a distribution box, the third support is lapped on the cross beam through a second support, an auxiliary movable frame is butted with a first support, and a current transformer can be configured through an installation screw.

Drawings

FIG. 1 is a schematic diagram showing the structure of the main device of the present invention in detail;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

FIG. 3 is a schematic diagram of the current transformer of the present invention;

FIG. 4 is a schematic view of the structure of the auxiliary mount of the present invention;

fig. 5 is an enlarged schematic view of the structure at B of the present invention.

In the figure: 1. a main body device; 2. an auxiliary mounting frame; 3. installing a base; 4. electrically connecting the terminal; 5. an air cooling device; 6. a protective grid; 7. a through wire groove; 8. a heat sink; 9. a heat sink; 10. a heat dissipating housing; 11. a current transformer; 12. a first bracket; 13. a second bracket; 14. a third support; 15. a first mounting hole; 16. reinforcing the cross bar; 17. a card slot; 18. an auxiliary movable frame; 19. reinforcing the connecting block; 20. a second mounting hole; 21. a clamping groove; 22. a through hole.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in FIGS. 1-5, the utility model provides a current transformer capable of fast heat dissipation, which comprises a main body device 1, an auxiliary mounting frame 2 and a heat dissipation casing 10, wherein a current transformer 11 is arranged inside the main body device 1, the outer wall of the current transformer 11 is fixedly connected with the heat dissipation casing 10, the bottom of the current transformer 11 is fixedly connected with a mounting base 3, the back of the mounting base 3 is fixedly connected with the auxiliary mounting frame 2, the outer surface of the heat dissipation casing 10 is provided with a heat dissipation groove 8, the right side of the heat dissipation groove 8 is provided with a heat dissipation sheet 9, the bottom of the heat dissipation sheet 9 is fixedly connected with the outer wall of the heat dissipation casing 10, the front of the current transformer 11 is fixedly connected with an air cooling device 5, the outer wall of the air cooling device 5 is provided with a through groove 7, one circle of the outer wall of the air cooling device 5 is correspondingly provided with the through groove 7, one side of the air cooling device 5 far away from the current transformer 11 is fixedly connected with a protective grid 6, the protective grid 6 is used for preventing excessive dust from entering the inside of the air cooling device 5 and accumulating to influence the operation of the equipment.

Example 2

As shown in fig. 1 to 5, on the basis of embodiment 1, the present invention provides a technical solution: preferably, a first support 12 is arranged inside the auxiliary mounting frame 2, a first mounting hole 15 is formed in one side of the first support 12 close to the mounting base 3, a reinforcing cross rod 16 is fixedly connected to one side of the first support 12, a second support 13 is movably connected to the top end of the first support 12, a third support 14 is movably connected to one end of the second support 13 far away from the first support 12, an auxiliary movable frame 18 is movably connected to the bottom end of the third support 14, a clamping groove 17 is formed in one side of the third support 14 close to the auxiliary movable frame 18, the clamping groove 17 is formed to facilitate the joint of the reinforcing connecting block 19 and the third support 14 and the passing through of a distribution box beam, a reinforcing connecting block 19 is fixedly connected to the top end of the auxiliary movable frame 18, a clamping groove 21 is formed in the upper surface of the reinforcing connecting block 19, and the clamping groove 21 is formed to facilitate the clamping of the reinforcing connecting block 19 and the first support 12, guarantee the steadiness of structure, second mounting hole 20 has been seted up in the center department of joint groove 21, based on easy to assemble's demand, the crossbeam in the block terminal is passed to third support 14 with supplementary mounting bracket 2, through the overlap joint of second support 13 on the crossbeam, again with supplementary adjustable shelf 18 and the butt joint of first support 12, at last with first mounting hole 15 and the 20 internally mounted connecting screw of second mounting hole, convenient and fast, through-wire hole 22 has been seted up in current transformer 11's front, the last fixed surface of installation base 3 is connected with electric connection end 4.

The working principle of the current transformer with rapid heat dissipation is described in detail below.

As shown in fig. 1-5, during the use, start under the double radiating effect of air cooling device 5 and heat dissipation casing 10, satisfy the heat dissipation function to current transformer 11, the dead slot between 8 and the fin 9 that set up on the heat dissipation casing 10 simultaneously, through-wire groove 7 has all been seted up to air cooling device 5's outer wall round correspondence, the wind that produces through-wire groove 7 conveying air cooling device 5, the thermal scattering and disappearing has been accelerated, through-wire groove 7 also corresponds communicating with through-wire hole 22, make things convenient for the interlude of wire, again based on the demand of easy to assemble, pass the crossbeam in the block terminal with the third support 14 of supplementary mounting bracket 2, overlap joint on the crossbeam through second support 13, with supplementary adjustable shelf 18 and first support 12 butt joint again, the configuration of current transformer 11 can be accomplished to the last mounting screw.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the utility model without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a quick radiating current transformer, includes main part device (1), supplementary mounting bracket (2) and heat dissipation casing (10), its characterized in that: a current transformer (11) is arranged inside the main body device (1), the outer wall of the current transformer (11) is fixedly connected with a heat dissipation shell (10), the bottom of the current transformer (11) is fixedly connected with an installation base (3), and the back of the installation base (3) is fixedly connected with an auxiliary installation frame (2);

radiating groove (8) have been seted up to the surface of heat dissipation casing (10), the right side of radiating groove (8) is provided with fin (9), the bottom of fin (9) with the outer wall fixed connection of heat dissipation casing (10), the positive fixed connection of current transformer (11) has wind cold charge and is put (5), through-wire groove (7) have been seted up to the outer wall of wind cold charge and is put (5).

2. The current transformer capable of rapidly dissipating heat according to claim 1, wherein: keep away from air cooling device (5) one side fixedly connected with protection grid (6) of current transformer (11), the inside of supplementary mounting bracket (2) is provided with first support (12), being close to of first support (12) first mounting hole (15) have been seted up to one side of installation base (3).

3. The current transformer capable of rapidly dissipating heat according to claim 2, wherein: one side fixedly connected with of first support (12) consolidates horizontal pole (16), the top swing joint of first support (12) has second support (13), second support (13) are kept away from the one end swing joint of first support (12) has third support (14).

4. The current transformer capable of rapidly dissipating heat according to claim 3, wherein: the bottom end of the third support (14) is movably connected with an auxiliary movable frame (18), and one side, close to the auxiliary movable frame (18), of the third support (14) is provided with a clamping groove (17).

5. The current transformer capable of rapidly dissipating heat according to claim 4, wherein: the top fixedly connected with of supplementary adjustable shelf (18) consolidates connecting block (19), joint groove (21) have been seted up to the upper surface of consolidating connecting block (19), second mounting hole (20) have been seted up in the center department of joint groove (21).

6. The current transformer capable of rapidly dissipating heat according to claim 1, wherein: the front surface of the current transformer (11) is provided with a through wire hole (22), and the upper surface of the mounting base (3) is fixedly connected with an electric connection end (4).