CN215578077U

CN215578077U - Power electronic transformer with high power density

Info

Publication number: CN215578077U
Application number: CN202121621647.8U
Authority: CN
Inventors: 朱玉芳; 朱柏芳; 姜丹彤
Original assignee: Shenzhen Lici Electronics Co ltd
Current assignee: Shenzhen Lici Electronics Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-18
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to the technical field of high-power-density transformers, which comprise a high-power-density transformer shell, wherein the upper side and the lower side of the high-power-density transformer shell are respectively and fixedly provided with a heat dissipation mechanism, the inner part of the high-power-density transformer shell is provided with an inner cavity, an iron core is arranged in the inner cavity, and one end of the iron core is provided with a heat conduction mechanism respectively. Resulting in damage to internal parts and failure of normal use of the equipment.

Description

Power electronic transformer with high power density

Technical Field

The utility model relates to the technical field of high-power-density transformers, in particular to a high-power-density power electronic transformer.

Background

An electronic transformer, which is an electronic device for converting alternating voltage of commercial power into direct current and then forming a high-frequency alternating voltage output by a semiconductor switching device, an electronic element and a high-frequency transformer winding, is also an alternating current-direct current-alternating current inverter circuit taught in the theory of electronics.

At present, when the existing high-power-density transformer is used, the internal coil winding can generate a large amount of heat, if the internal heat is discharged out in an emergency, the internal coil winding can be burnt, and the transformer cannot normally operate.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a power electronic transformer with high power density, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

high power density's power electronic transformer, including high power density transformer shell, its characterized in that: the upper and lower both sides of high power density transformer case are fixed mounting respectively have a heat dissipation mechanism, the inner chamber has been seted up to the inside of high power density transformer case, the internally mounted of inner chamber has the iron core, a heat conduction mechanism is all installed to the one end of iron core, one side of high power density transformer case is all stretched out to the one end of heat conduction mechanism, the surface winding of iron core has coil winding.

Preferably, a fixing plate is fixedly welded to the surface of one side of the high-power-density transformer shell, and two screw holes are respectively installed at two ends of the fixing plate.

Preferably, one end of the iron core is fixedly installed on one side surface of the first elliptical connecting plate, and the other side surface of the first elliptical connecting plate is fixedly installed on one side surface of the inner cavity.

Preferably, the other end of the iron core is connected to one side surface of a second elliptical connecting plate, and the inner side surface of the second elliptical connecting plate is connected to one end of the heat conducting mechanism.

Preferably, the heat dissipation mechanism comprises heat dissipation fins and a fixing plate, wherein one side surface of the fixing plate is fixedly installed on one side surface of the high-power-density transformer shell, and a plurality of heat dissipation fins are installed on the inner side surface of the fixing plate.

Preferably, the heat conducting mechanism comprises a heat dissipating head, a heat conducting rod, a heat conducting block and a circular groove, the circular groove is arranged in the circular groove, and the circular groove is formed in one side of the high-power-density transformer shell.

Preferably, the circular groove is formed in one end of the heat conducting block, the heat dissipation head is fixedly mounted at one end of the heat conducting block, the heat conducting rod is mounted inside the heat dissipation head, and one end of the heat conducting rod is connected to one end of the iron core.

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

(1) the utility model can lead out the internal heat when the high-power-density transformer operates through the heat conducting mechanism, thereby preventing the coil winding from being burnt out when the internal heat is too high and cannot be dissipated, and further preventing the transformer from being used and the equipment from being incapable of controlling output.

(2) According to the utility model, through the heat dissipation mechanism, further heat dissipation can be carried out when the heat conduction mechanism cannot completely dissipate the internal temperature, so that the internal temperature is prevented from being continuously accumulated, and the internal temperature is continuously increased, so that internal parts are damaged, and the equipment cannot be normally used.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the front side of a power electronic transformer with high power density according to the present invention;

FIG. 2 is a schematic diagram of the back side of the high power density power electronic transformer of the present invention;

FIG. 3 is a schematic side view of a high power density power electronic transformer according to the present invention;

fig. 4 is a schematic structural diagram of a cross section a-a in fig. 3 of the power electronic transformer with high power density according to the present invention.

In the figure: 1. a screw hole; 2. a first fixing plate; 3. a high power density transformer housing; 4. a heat dissipation mechanism; 401. a heat sink; 402. a second fixing plate; 5. an inner cavity; 6. a coil winding; 7. a first elliptical connecting plate; 8. an iron core; 9. a second elliptical web; 10. a heat conducting mechanism; 1001. a heat dissipating head; 1002. a heat conducting rod; 1003. a heat conducting block; 1004. a circular groove; 11. a circular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, the power electronic transformer with high power density comprises a high power density transformer housing 3, and is characterized in that: the upper and lower both sides of high power density transformer housing 3 are fixed mounting respectively have a heat dissipation mechanism 4, inner chamber 5 has been seted up to the inside of high power density transformer housing 3, the internally mounted of inner chamber 5 has iron core 8, a heat conduction mechanism 10 is all installed to the one end of iron core 8, one side of high power density transformer housing 3 is all stretched out to the one end of heat conduction mechanism 10, the surface winding of iron core 8 has coil winding 6.

Through the technical scheme, the heat conducting mechanism 10 can conduct out internal heat when the high-power-density transformer operates, so that the phenomenon that the coil winding 6 is burnt out when the internal heat is too high and cannot be dissipated to cause that the transformer cannot be used and equipment cannot control output is avoided, the heat dissipating mechanism 4 can further dissipate heat when the internal temperature cannot be dissipated completely by the heat conducting mechanism 10, the internal temperature is prevented from being accumulated continuously, the internal temperature is increased continuously to cause that internal parts are damaged to cause that the equipment cannot be normally used is avoided.

It can be understood that in this application, a side surface welding fixed mounting of high power density transformer housing 3 has first fixed plate 2, two screw rod holes 1 are installed respectively at the both ends of first fixed plate 2, and two screw rod holes 1 that install respectively through the both ends of first fixed plate 2 can cooperate the screw rod to fix it, prevent to appear droing when using, lead to equipment to damage.

It can be understood that, in this application, the one end fixed mounting of iron core 8 is in a side surface of first elliptical connecting plate 7, another side surface fixed mounting of first elliptical connecting plate 7 is in a side surface of inner chamber 5, can fix iron core 8 through first elliptical connecting plate 7, prevents that iron core 8 from breaking away from when using, leads to the unable normal use of equipment.

It can be understood that in this application, a side surface at second oval connecting plate 9 is connected to iron core 8's the other end, the one end at heat conduction mechanism 10 can be connected with heat conduction mechanism 10 and iron core 8 through second oval connecting plate 9 to the interior side surface of second oval connecting plate 9, and the temperature that conveniently produces iron core 8 self dispels the heat, prevents that iron core 8 high temperature.

It can be understood that, in this application, heat dissipation mechanism 4 includes fin 401, second fixed plate 402, a side surface fixed mounting of second fixed plate 402 is at a side surface of high power density transformer housing 3, a side surface mounting has a plurality of fin 401 in the second fixed plate 402, can carry out further heat dissipation through heat dissipation mechanism 4 when heat conduction mechanism 10 can't completely dispel the inside temperature, prevents that inside temperature from lasting the accumulation to inside temperature lasts to rise, leads to inside part to appear damaging, the unable normal use of equipment.

It can be understood that, in this application, heat conduction mechanism 10 includes thermal head 1001, heat conduction pole 1002, heat conduction piece 1003, circular recess 1004 is installed inside circular recess 11, circular recess 11 is seted up in one side of high power density transformer housing 3, can block through circular recess 1004 cooperation circular recess 11 and die, prevents that the shake from appearing in the in-process that uses, leads to unable normal heat dissipation when dispelling the heat.

It can be understood that in this application, circular recess 1004 sets up the one end at heat conduction piece 1003, heat conduction piece 1003 one end fixed mounting has the thermal head 1001, the internally mounted of thermal head 1001 has heat conduction pole 1002, the one end of iron core 8 is connected to the one end of heat conduction pole 1002, connects the one end at iron core 8 through the one end of heat conduction pole 1002, can dispel the heat degree that produces on iron core 8 through thermal head 1001, can effectually prevent that iron core 8 high temperature.

The working principle of the power electronic transformer with high power density is as follows:

during the use, at first heat conduction mechanism 10 can be derived inside heat when high power density transformer operates, prevent that inside heat is too high, and in the time of can't scattering, lead to coil winding 6 to burn out, thereby cause the transformer to be unable to use, lead to the uncontrollable output of equipment, heat dissipation mechanism 4 can carry out further heat dissipation when heat conduction mechanism 10 can't scatter inside temperature completely, prevent that inside temperature from lasting the accumulation, thereby inside temperature lasts and rises, lead to inside part to appear damaging, cause the unable normal use of equipment.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. High power density's power electronic transformer, including high power density transformer shell (3), its characterized in that: the utility model discloses a high power density transformer shell, including high power density transformer shell (3), the upper and lower both sides of high power density transformer shell (3) are fixed mounting respectively have a heat dissipation mechanism (4), inner chamber (5) have been seted up to the inside of high power density transformer shell (3), the internally mounted of inner chamber (5) has iron core (8), a heat conduction mechanism (10) are all installed to the one end of iron core (8), one side of high power density transformer shell (3) is all stretched out to the one end of heat conduction mechanism (10), the surface winding of iron core (8) has coil winding (6).

2. A high power density power electronic transformer according to claim 1, characterised in that: the high-power-density transformer shell is characterized in that a first fixing plate (2) is fixedly welded on the surface of one side of the high-power-density transformer shell (3), and two screw rod holes (1) are respectively installed at the two ends of the first fixing plate (2).

3. A high power density power electronic transformer according to claim 1, characterised in that: one end fixed mounting of iron core (8) is in a side surface of first elliptical connecting plate (7), the opposite side fixed mounting of surface of first elliptical connecting plate (7) is in a side surface of inner chamber (5).

4. A high power density power electronic transformer according to claim 1, characterised in that: the other end of iron core (8) is connected at one side surface of second oval connecting plate (9), the one end at heat-conducting mechanism (10) is connected to the interior side surface of second oval connecting plate (9).

5. A high power density power electronic transformer according to claim 1, characterised in that: the heat dissipation mechanism (4) comprises heat dissipation fins (401) and a second fixing plate (402), wherein the surface of one side of the second fixing plate (402) is fixedly installed on the surface of one side of the high-power-density transformer shell (3), and the surface of the inner side of the second fixing plate (402) is provided with a plurality of heat dissipation fins (401).

6. A high power density power electronic transformer according to claim 1, characterised in that: the heat conducting mechanism (10) comprises a heat dissipation head (1001), a heat conducting rod (1002), a heat conducting block (1003) and a circular groove (1004), wherein the circular groove (1004) is installed inside a circular groove (11), and the circular groove (11) is formed in one side of the high-power-density transformer shell (3).

7. A high power density power electronic transformer according to claim 6, characterised in that: the round groove (1004) is formed in one end of the heat conducting block (1003), a heat dissipation head (1001) is fixedly mounted at one end of the heat conducting block (1003), a heat conducting rod (1002) is mounted inside the heat dissipation head (1001), and one end of the heat conducting rod (1002) is connected to one end of the iron core (8).