CN222637012U - Three-phase isolation current transformer - Google Patents

Abstract

The utility model relates to the technical field of current transformers, in particular to a three-phase isolation current transformer, which comprises a shell and a connecting plate, wherein the outer side of the shell is fixedly connected with the connecting plate through bolts, two groups of partition plates are fixedly connected in the shell at equal intervals, three groups of current transformers are fixedly installed in the partition plates, an auxiliary assembly is arranged on the outer side of the current transformer, a heat dissipation assembly is arranged in the shell, the auxiliary assembly comprises a connecting ring, a heat conduction pipe and fins, the connecting ring is arranged on the outer side of the current transformer, the heat conduction pipe is arranged on one side of the connecting ring, and the fins are arranged on the outer side of the heat conduction pipe. According to the utility model, through the auxiliary assembly, the connecting ring, the heat conducting pipe and the fins are matched for use, and are integrally connected, and the copper material is adopted, so that the heat radiating area is enlarged, the heat radiating effect is good, the problem of unstable performance caused by heat energy generated by the magnetic core and the coil of the current transformer is solved, and the service life of the current transformer is prolonged.

Description

Three-phase isolation current transformer

Technical Field

The utility model relates to the technical field of current transformers, in particular to a three-phase isolation current transformer.

Background

The three-phase current transformer is an electrical device for transforming high current in a transformation circuit into standard current. The voltage transformer is based on the electromagnetic induction principle and is used for transforming high-voltage current into relatively small current so as to protect and measure a power system.

Through searching, the patent application number is 201821776600.7, a three-phase current transformer is disclosed, the three-phase current transformer comprises an upper part of the three-phase current transformer and a lower part of the three-phase current transformer, the upper part of the three-phase current transformer is connected to the upper end of the lower part of the three-phase current transformer, the bottom end of the lower part of the three-phase current transformer is fixedly connected with a base, one ends of the lower part of the three-phase current transformer and the upper part of the three-phase current transformer are connected with a hinge seat, the three-phase current transformer is connected up and down through the combined three-phase current transformer, the current transformer is formed into an openable connecting hole, the three-phase current transformer can be directly opened when wires are overhauled or the transformers are overhauled, time and labor are saved, the upper and lower connection of the three-phase current transformer can be manually operated, and a protective cover is arranged on the outer side of the connection, and locking connection is carried out on the protective cover under some necessary conditions, so that the three-phase current transformer is safer.

The protection effect is better, but the problem exists that when the device is operated, the performance caused by heat energy generated by the magnetic core and the coil of the current transformer is unstable, the heat dissipation effect can be limited, the overheating condition of the current transformer is accelerated, performance degradation or damage can be caused, the service life of the current transformer is influenced, and therefore the three-phase isolation current transformer is provided for solving the problem.

Disclosure of utility model

The utility model aims to provide a three-phase isolation current transformer so as to solve the problems that the performance is unstable, the heat dissipation effect is limited and the service life of the current transformer is influenced due to heat energy generated by a magnetic core and a coil of the current transformer in the background technology.

The three-phase isolation current transformer comprises a shell and a connecting plate, wherein the outer side of the shell is fixedly connected with the connecting plate through bolts, two groups of partition boards are fixedly connected in the shell at equal intervals, three groups of current transformers are fixedly arranged in the partition boards, an auxiliary component is arranged on the outer side of the current transformer, and a heat dissipation component is arranged in the shell;

The auxiliary assembly comprises a connecting ring, a heat conducting pipe and fins, wherein the connecting ring is arranged on the outer side of the current transformer, the heat conducting pipe is arranged on one side of the connecting ring, and the fins are arranged on the outer side of the heat conducting pipe.

Preferably, the heat dissipation assembly comprises a mounting plate and heat dissipation fans, wherein the mounting plate is fixedly arranged on the right side of the fins in the shell, three groups of heat dissipation fans are fixedly arranged in the mounting plate, and the heights of the heat dissipation fans correspond to the central positions of the fins.

Preferably, the connecting ring surrounds the surface of the current transformer and is connected with the current transformer, the rear end of the heat conducting pipe is fixedly connected with the connecting ring, fins are fixedly connected to the upper side and the lower side of the other end of the heat conducting pipe at equal intervals, the distance between the fins is 3mm, and the connecting ring, the heat conducting pipe and the fins are all made of copper materials.

Preferably, the right side surface of the shell is provided with first radiating holes at the rear end of the radiating fan, the left side of the connecting plate is provided with second radiating holes at equal intervals, and the first radiating holes correspond to the second radiating holes.

Preferably, baffle plates are fixedly connected to the left side of the connecting plate at equal intervals between the second radiating holes, and the diameter of each baffle plate is 3cm.

Preferably, the front side of the connecting plate is fixedly connected with two groups of connecting ports, and three groups of wiring holes are formed in the upper surface of the shell.

Preferably, a positioning hole is formed in the bottom edge of the shell, and a connecting groove is formed in one half of the right side of the shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, through the auxiliary assembly, the connecting ring, the heat conducting pipe and the fins are matched for use, and are integrally connected, and the copper material is adopted, so that the heat radiating area is enlarged, the heat radiating effect is good, the problem of unstable performance caused by heat energy generated by the magnetic core and the coil of the current transformer is solved, and the service life of the current transformer is prolonged.

2. According to the utility model, the heat radiating assembly is arranged, the heat radiating fan is started, the heat radiating fan discharges hot air in the shell from the second heat radiating hole, heat in the fins is taken out, the heat radiating effect is ensured through the first heat radiating hole, the temperature of the current transformer can be effectively reduced, the overheat condition of the current transformer is slowed down, and the normal use of the current transformer is ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic elevational view of the structure of the present utility model.

Fig. 2 is a schematic rear view of the structure of the present utility model.

Fig. 3 is a schematic view of the auxiliary assembly of the present utility model.

Fig. 4 is a schematic structural diagram of a heat dissipating component according to the present utility model.

Fig. 5 is a partial schematic view of the connection plate of fig. 1 according to the present utility model.

In the figure, 1, a shell, 2, a connecting plate, 3, a baffle plate, 4, a current transformer, 5, an auxiliary component, 501, a connecting ring, 502, a heat conducting pipe, 503, fins, 6, a heat radiating component, 61, a mounting plate, 62, a heat radiating fan, 7, a first heat radiating hole, 8, a second heat radiating hole, 9, a baffle plate, 10, a connecting port, 11, a positioning hole, 12 and a connecting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the three-phase isolation current transformer comprises a shell 1 and a connecting plate 2, wherein the connecting plate 2 is fixedly connected to the outer side of the shell 1 through bolts, two groups of partition plates 3 are fixedly connected to the inner side of the shell 1 at equal intervals, three groups of current transformers 4 are fixedly arranged in the partition plates 3, an auxiliary component 5 is arranged on the outer side of the current transformers 4, and a heat dissipation component 6 is arranged in the shell 1;

The auxiliary assembly 5 comprises a connecting ring 501, a heat conducting pipe 502 and fins 503, wherein the connecting ring 501 is arranged on the outer side of the current transformer 4, the heat conducting pipe 502 is arranged on one side of the connecting ring 501, and the fins 503 are arranged on the outer side of the heat conducting pipe 502;

The device solves the problems that the performance of the current transformer is unstable, the heat dissipation effect is limited and the service life of the current transformer is influenced due to the arrangement of the auxiliary assembly 5 and the heat dissipation assembly 6.

Further, the heat dissipation assembly 6 includes a mounting plate 61 and a heat dissipation fan 62, the mounting plate 61 is fixedly mounted on the right side of the fins 503 in the housing 1, three groups of heat dissipation fans 62 are fixedly mounted in the mounting plate 61, and the height of the heat dissipation fans 62 corresponds to the center position of the fins 503. As shown in fig. 4, this structure is used for delivering external air into the housing 1 by starting the cooling fan 62, so that hot air in the housing 1 is exhausted, and the interior of the housing 1 is cooled, thereby ensuring the cooling effect, effectively reducing the temperature of the current transformer 4, slowing down the overheating condition of the current transformer 4, and ensuring the normal use of the current transformer 4.

Further, the connecting ring 501 surrounds the surface of the current transformer 4 and is connected with the current transformer 4, the rear end of the heat conducting tube 502 is fixedly connected with the connecting ring 501, fins 503 are fixedly connected to the upper side and the lower side of the other end of the heat conducting tube 502 at equal intervals, the distance between the fins 503 is 3mm, and the connecting ring 501, the heat conducting tube 502 and the fins 503 are all made of copper. As shown in fig. 3, this structure is used for heat transfer of heat generated when the current transformer 4 operates through the connection ring 501, and the contact area with air is enlarged through the fins 503, so that heat is rapidly dissipated.

Further, the right side surface of the casing 1 is provided with first heat dissipation holes 7 at the rear end of the heat dissipation fan 62, the left side of the connecting plate 2 is provided with second heat dissipation holes 8 at equal intervals, and the positions of the first heat dissipation holes 7 and the second heat dissipation holes 8 are corresponding. As shown in fig. 2, the structure is used for facilitating the transportation of the external air into the housing 1 through the first heat dissipation holes 7 and exhausting the hot air in the housing 1 through the second heat dissipation holes 8.

Further, baffle plates 9 are fixedly connected to the left side of the connecting plate 2 between the second radiating holes 8 at equal intervals, and the diameter of each baffle plate 9 is 3cm. As shown in fig. 5, the structure is used for reducing external dust from entering the shell 1 through the baffle plate 9, influencing the heat dissipation effect and prolonging the service life of the device.

Further, two groups of connection ports 10 are fixedly connected to the front side of the connection plate 2, and three groups of wiring holes are formed in the upper surface of the shell 1. As shown in fig. 1, the structure is used for facilitating the connection of the device with other equipment through the connection port 10 and the wiring hole.

Further, a positioning hole 11 is formed in the bottom edge of the housing 1, and a connecting groove 12 is formed in the right half of the housing 1. As shown in fig. 2, this structure is used for quick positioning of the housing 1 through the positioning hole 11 at the bottom, facilitating installation, and facilitating connection of the current transformer 4 through the connection groove 12.

When the device is used, as shown in fig. 1 and 2, the device is fixedly installed through the positioning hole 11, then connected with external equipment through the connecting hole 10 and the connecting groove 12, as shown in fig. 3, when the current transformer 4 operates, heat is generated, heat is transferred through the connecting ring 501 and the heat conducting pipe 502, the heat is conducted to the position of the fin 503 to dissipate heat, as shown in fig. 4 and 2, the heat dissipating fan 62 is started, wind power is generated through rotation of the heat dissipating fan 62, the fin 503 is blown to dissipate heat and cool, external air is conveyed into the shell 1 through the first heat dissipating hole 7, and generated hot air is discharged through the second heat dissipating hole 8, so that the heat can be dissipated through air cooling while the heat dissipating fan 62 operates, as shown in fig. 5, and the hot air at the position of the fin 503 is discharged from the second heat dissipating hole 8.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The three-phase isolation current transformer comprises a shell (1) and a connecting plate (2) and is characterized in that the connecting plate (2) is fixedly connected to the outer side of the shell (1) through bolts, two groups of partition plates (3) are fixedly connected to the inner side of the shell (1) at equal intervals, three groups of current transformers (4) are fixedly arranged in the partition plates (3), an auxiliary assembly (5) is arranged on the outer side of the current transformers (4), and a heat dissipation assembly (6) is arranged in the shell (1);

The auxiliary assembly (5) comprises a connecting ring (501), a heat conducting pipe (502) and fins (503), wherein the connecting ring (501) is arranged on the outer side of the current transformer (4), the heat conducting pipe (502) is arranged on one side of the connecting ring (501), and the fins (503) are arranged on the outer side of the heat conducting pipe (502).

2. The three-phase isolation current transformer according to claim 1, wherein the heat dissipation assembly (6) comprises a mounting plate (61) and heat dissipation fans (62), the mounting plate (61) is fixedly mounted on the right side of the fins (503) in the shell (1), three groups of heat dissipation fans (62) are fixedly mounted in the mounting plate (61), and the height of each heat dissipation fan (62) corresponds to the center position of each fin (503).

3. The three-phase isolation current transformer according to claim 1, wherein the connecting ring (501) surrounds the surface of the current transformer (4) and is connected with the current transformer (4), the rear end of the heat conducting tube (502) is fixedly connected with the connecting ring (501), fins (503) are fixedly connected to the upper side and the lower side of the other end of the heat conducting tube (502) at equal intervals, the distance between the fins (503) is 3mm, and the connecting ring (501), the heat conducting tube (502) and the fins (503) are all made of copper materials.

4. The three-phase isolation current transformer according to claim 1, wherein the right side surface of the shell (1) is provided with first radiating holes (7) at the rear end of the radiating fan (62), the left side of the connecting plate (2) is provided with second radiating holes (8) at equal intervals, and the positions of the first radiating holes (7) and the second radiating holes (8) are corresponding.

5. The three-phase isolation current transformer according to claim 1, wherein baffle plates (9) are fixedly connected between the second radiating holes (8) at equal intervals on the left side of the connecting plate (2), and the diameter of each baffle plate (9) is 3cm.

6. The three-phase isolation current transformer according to claim 1, wherein the front side of the connecting plate (2) is fixedly connected with two groups of connecting ports (10), and three groups of wiring holes are formed in the upper surface of the shell (1).

7. The three-phase isolation current transformer according to claim 1, wherein a positioning hole (11) is formed in the bottom edge of the shell (1), and a connecting groove (12) is formed in the right half of the shell (1).