CN211376363U

CN211376363U - High-efficient radiating current transformer

Info

Publication number: CN211376363U
Application number: CN201922206102.XU
Authority: CN
Inventors: 钟东海
Original assignee: Jiangxi Jinfu Electric Power Technology Co ltd
Current assignee: Jiangxi Jinfu Electric Power Technology Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-28
Anticipated expiration: 2029-12-11

Abstract

The utility model belongs to the technical field of current equipment, in particular to a current transformer with high-efficiency heat dissipation, which comprises an annular shell, an insulating layer, an iron core, a coil, a hollow aluminum pipe and an auxiliary heat dissipation mechanism, wherein the insulating layer is attached to the inner wall of the inner ring of the annular shell; the auxiliary heat dissipation mechanism comprises a disc shell fixedly installed on one side of the annular shell, a honeycomb cooling fin is fixedly installed in the disc shell, one end of the hollow aluminum tube extends into the disc shell and is fixedly connected with the honeycomb cooling fin, and a motor is fixedly installed on the inner ring of the annular shell. The utility model discloses an install supplementary heat dissipation mechanism on current transformer for strengthen the radiating effect of aluminum pipe, can also guide out the thermal current in the casing through the fan simultaneously.

Description

High-efficient radiating current transformer

Technical Field

The utility model relates to a current equipment technical field especially relates to a high-efficient radiating current transformer.

Background

The current transformer is an instrument for converting a large current on a primary side into a small current on a secondary side to measure according to an electromagnetic induction principle, and comprises an iron core, a coil and a shell, wherein the coil generates heat when working, the integrally formed shell structure causes the current transformer to have poor heat dissipation effect and short service life, so the heat dissipation of the current transformer is needed, and through retrieval, the patent document with the publication number of CN204632504U discloses a high-efficiency heat dissipation current transformer which comprises an iron core, an enameled wire and a shell, wherein the iron core is in a hollow circular ring shape, the enameled wire is uniformly wound on the iron core to form a coil, the shell is coated outside the iron core and the coil, a plurality of hollow aluminum strips are arranged inside the shell, the hollow aluminum strips are strip bodies with two closed ends and hollow interiors, the hollow aluminum strips are circumferentially wound outside the coil along the circular ring of the iron core, and are parallel to the central axis of the iron, and the shell and the hollow aluminum strip are integrally cast and molded.

However, the above-mentioned technologies have disadvantages, the heat dissipation effect cannot be maximized only by the way of heat conduction of the aluminum strips and heat dissipation of the through holes, the aluminum strips can conduct heat, but also need time to dissipate heat, and the heat flow in the shell has a low dissipation effect under the condition of no external force guidance, so that the current transformer with high heat dissipation efficiency is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-efficiency heat-dissipation current transformer.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a current transformer capable of efficiently dissipating heat comprises an annular shell, an insulating layer, an iron core, a coil, hollow aluminum pipes and an auxiliary heat dissipation mechanism, wherein the insulating layer is attached to the inner wall of an inner ring of the annular shell; supplementary heat dissipation mechanism includes the disc shell of fixed mounting in annular housing one side, fixed mounting has the honeycomb fin in the disc shell, the one end of hollow aluminum pipe extend to in the disc shell and with honeycomb fin fixed connection, circle inner circle fixed mounting of annular housing has the motor, fixed mounting has the actuating lever on the output shaft of motor, the actuating lever extends to in the disc shell and fixed mounting has the flabellum.

Preferably, four first supporting blocks are fixedly mounted on the motor, and one ends of the four first supporting blocks are fixedly connected with the outer wall of the inner ring of the annular shell.

Preferably, a second supporting block is fixedly mounted on the outer wall of the inner ring of the annular shell, a rotating through hole is formed in the second supporting block, and the driving rod is rotatably connected with the rotating through hole.

Preferably, the inner walls of the two sides of the annular shell are provided with annular ventilation openings, and isolation fences are fixedly mounted on the annular ventilation openings.

Preferably, a plurality of air outlets are formed in the inner wall of one side of the disc shell, a plurality of connecting holes are formed in the inner wall of one side of the annular shell, and the plurality of hollow aluminum tubes are fixedly connected with the corresponding connecting holes respectively.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, the device is matched with a fan blade through a hollow aluminum pipe, a honeycomb radiating fin, a motor, a driving rod and a coil, the coil conducts heat to the honeycomb radiating fin through the hollow aluminum pipe, then the motor drives the driving rod to rotate through an output shaft, the driving rod drives the fan blade to rotate, the fan blade starts to drive air flow through rotation, the honeycomb radiating fin is accelerated and cooled through the air flow, meanwhile, the fan blade guides heat flow in the annular shell out through an annular ventilation opening, and then the heat flow is discharged through an air outlet in the disc shell, so that the problem that the heat flow in the annular shell is difficult to discharge is solved.

The utility model discloses an install supplementary heat dissipation mechanism on current transformer for strengthen the radiating effect of aluminum pipe, can also guide out the thermal current in the casing through the fan simultaneously.

Drawings

FIG. 1 is a front sectional view of the present invention;

fig. 2 is a schematic side view of the present invention.

In the figure: 1. an annular housing; 2. an insulating layer; 3. an iron core; 4. a coil; 5. a hollow aluminum tube; 6. a disc shell; 7. a honeycomb heat sink; 8. a motor; 9. a drive rod; 10. a fan blade; 11. supplementary heat dissipation mechanism.

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. 1-2, the present invention provides a technical solution: a current transformer capable of efficiently radiating heat comprises an annular shell 1, an insulating layer 2, an iron core 3, a coil 4, hollow aluminum pipes 5 and an auxiliary heat radiating mechanism 11, wherein the insulating layer 2 is attached to the inner wall of an inner ring of the annular shell 1, the iron core 3 is fixedly arranged on the insulating layer 2, the coil 4 is fixedly wound on the iron core 3, a plurality of hollow aluminum pipes 5 are fixedly arranged on the coil 4, and the auxiliary heat radiating mechanism 11 is arranged on the annular shell 1; the auxiliary heat dissipation mechanism 11 comprises a disc shell 6 fixedly installed on one side of the annular shell 1, a honeycomb heat dissipation sheet 7 is fixedly installed in the disc shell 6, one end of a hollow aluminum tube 5 extends into the disc shell 6 and is fixedly connected with the honeycomb heat dissipation sheet 7, a motor 8 is fixedly installed on an inner ring of the annular shell 1, a driving rod 9 is fixedly installed on an output shaft of the motor 8, and the driving rod 9 extends into the disc shell 6 and is fixedly provided with fan blades 10;

four first supporting blocks are fixedly arranged on the motor 8, one ends of the four first supporting blocks are fixedly connected with the outer wall of the inner ring of the annular shell 1, a second supporting block is fixedly arranged on the outer wall of the inner ring of the annular shell 1, a rotating through hole is formed in the second supporting block, the driving rod 9 is rotatably connected with the rotating through hole, annular ventilation holes are formed in the inner walls of two sides of the annular shell 1, isolation fences are fixedly arranged on the annular ventilation holes, a plurality of air outlets are formed in the inner wall of one side of the disc shell 6, a plurality of connecting holes are formed in the inner wall of one side of the annular shell 1, a plurality of hollow aluminum tubes 5 are respectively and fixedly connected with the corresponding connecting holes, the heat is conducted to the honeycomb cooling fins 7 through the hollow aluminum tubes 5 by the coil 4, the motor 8 drives the driving rod 9 to rotate through the output shaft, the actuating lever 9 drives flabellum 10 and rotates, and flabellum 10 begins to actuate the air current through rotating, cools off with higher speed honeycomb fin 7 through the air current, and simultaneously, flabellum 10 guides out the hot current in annular housing 1 through the annular vent, then discharges the thermal current through the air outlet on the disc shell 6 to the problem of the hot current difficulty of discharging in annular housing 1 has been solved, the utility model discloses an install supplementary heat dissipation mechanism 11 on current transformer for strengthen the radiating effect of aluminum pipe, can also guide out the hot current in the casing through the fan simultaneously.

The working principle is as follows: during the use, coil 4 begins to generate heat, then give honeycomb fin 7 with the heat through hollow aluminum pipe 5 conduction, meanwhile, motor 8 starts, motor 8 drives actuating lever 9 through the output shaft and rotates, actuating lever 9 drives flabellum 10 and rotates, flabellum 10 begins to arouse the air current through rotating, cool off honeycomb fin 7 with higher speed through the air current, meanwhile, lead out through annular vent with annular housing 1 internal heat flow, then discharge the thermal current through the air outlet on the disc shell 6, thereby the problem of annular housing 1 internal heat flow discharge difficulty has been solved, simultaneously because annular vent has all been seted up to annular housing 1 both sides, so make annular housing 1's heat dissipation ventilation degree better.

It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of this design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and the details of the power mechanism, the power supply system, and the control system can be clearly known on the premise that those skilled in the art understand the principle of the present invention.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient radiating current transformer which characterized in that: the coil comprises an annular shell (1), an insulating layer (2), an iron core (3), a coil (4), hollow aluminum tubes (5) and an auxiliary heat dissipation mechanism (11), wherein the insulating layer (2) is attached to the inner wall of an inner ring of the annular shell (1), the iron core (3) is fixedly installed on the insulating layer (2), the coil (4) is fixedly wound on the iron core (3), the hollow aluminum tubes (5) are fixedly installed on the coil (4), and the auxiliary heat dissipation mechanism (11) is installed on the annular shell (1);

supplementary heat dissipation mechanism (11) include disc shell (6) of fixed mounting in annular casing (1) one side, fixed mounting has honeycomb fin (7) in disc shell (6), the one end of hollow aluminum pipe (5) extend to disc shell (6) in and with honeycomb fin (7) fixed connection, circle inner fixed mounting of annular casing (1) has motor (8), fixed mounting has actuating lever (9) on the output shaft of motor (8), actuating lever (9) extend to disc shell (6) in and fixed mounting have flabellum (10).

2. The current transformer with efficient heat dissipation according to claim 1, wherein: and four first supporting blocks are fixedly mounted on the motor (8), and one ends of the four first supporting blocks are fixedly connected with the outer wall of the inner ring of the annular shell (1).

3. The current transformer with efficient heat dissipation according to claim 1, wherein: the outer wall of the inner ring of the annular shell (1) is fixedly provided with a second supporting block, the second supporting block is provided with a rotating through hole, and the driving rod (9) is rotatably connected with the rotating through hole.

4. The current transformer with efficient heat dissipation according to claim 1, wherein: annular vents are formed in the inner walls of the two sides of the annular shell (1), and isolation fences are fixedly mounted on the annular vents.

5. The current transformer with efficient heat dissipation according to claim 1, wherein: a plurality of air outlets are formed in the inner wall of one side of the disc shell (6), a plurality of connecting holes are formed in the inner wall of one side of the annular shell (1), and a plurality of hollow aluminum tubes (5) are fixedly connected with the corresponding connecting holes respectively.