CN215643991U - High-efficient heat dissipation planar transformer - Google Patents

Abstract

The utility model discloses a high-efficiency heat-dissipation planar transformer, which comprises a first shell, a second shell and a plurality of overlapped PCB boards, wherein magnetic chips are arranged in the first shell and the second shell, a through hole for inserting the magnetic chips is arranged at the central position of the top surface of the PCB board, the second shell comprises a top-removing shell and a top board, four corners of the top surface of the top-removing shell are respectively provided with a groove, a first motor is fixedly arranged at the bottom surface inside the groove, a screw rod is fixedly arranged on an output shaft of the first motor, the screw rod is in threaded connection with a mandril, one end of the mandril is fixedly connected with the top board, and one side of the inner wall of the first shell is provided with a side groove. The normal operation of the planar transformer is ensured.

Description

High-efficient heat dissipation planar transformer

Technical Field

The utility model relates to the technical field of planar transformers, in particular to a high-efficiency heat-dissipation planar transformer.

Background

The planar transformer has the characteristics of high frequency, low shape, small height, high working frequency and the like, and compared with the traditional transformer, the planar transformer is the biggest difference between an iron core and a coil winding;

the existing planar transformer has poor heat dissipation performance, and the internal magnetic chip is easy to overheat after long-term working, thereby influencing the normal work of the planar transformer.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the high-efficiency heat-dissipation planar transformer with better heat dissipation effect.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a high-efficient heat dissipation planar transformer, includes the PCB board of first shell, second shell and a plurality of coincide, all be equipped with the magnetic chip in first shell and the second shell, PCB board top surface central point puts the through-hole of seting up grafting magnetic chip, the second shell is including removing top shell and roof, it all sets up flutedly to remove top shell top surface four corners, the first motor of the inside bottom surface fixed mounting of recess, the output shaft fixed mounting lead screw of first motor, lead screw threaded connection ejector pin, ejector pin one end fixed connection roof, the side channel has been seted up to first shell inner wall one side, be equipped with temperature sensor and controller in the side channel, temperature sensor signal connection controller, the first motor of controller signal connection, the roof top surface still is equipped with a plurality of radiator unit.

Preferably, radiator unit includes second motor and fan blade, a plurality of air vents have been seted up to the roof top surface, fixed mounting hollow box on the air vent, the inside bottom surface fixed mounting second motor of hollow box, the output shaft fixed mounting bull stick of second motor, a plurality of fan blade of bull stick surface equidistance distribution.

Preferably, the first shell, the second shell and the magnetic chip are all E-shaped, and a radiating fin is arranged at the center position inside the first shell and the second shell.

Preferably, the fixed plates are horizontally and fixedly arranged at four corners of the outer surfaces of the first shell and the second shell, and the fixed plates are provided with mounting holes.

Preferably, a box opening of the hollow box is fixedly provided with a ventilation plate with a ventilation opening.

Preferably, the heat sink, the first housing and the second housing are all made of copper.

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

1. according to the utility model, the top plate can be jacked up to expose the magnetic chip in the air by arranging the top-removing shell, the groove, the first screw rod, the ejector rod, the side groove, the temperature sensor and the controller, so that the heat dissipation effect on the magnetic chip is improved, and the normal work of the planar transformer is ensured;

2. the utility model can further improve the heat radiation effect on the magnetic chip by arranging the vent hole, the hollow box, the second motor, the rotating rod, the fan blade and the ventilation plate;

3. the first shell and the second shell can be installed, fixed and detached through the fixing plate and the installing hole.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a second housing according to the present invention;

FIG. 3 is a schematic cross-sectional view of the hollow case of the present invention;

FIG. 4 is a schematic view of the structural mounting of the heat sink, temperature sensor and controller of the present invention;

FIG. 5 is a schematic view of the structure of the first housing, the magnetic chip, the fixing plate and the mounting hole of the present invention;

FIG. 6 is a schematic diagram of a PCB and via structure of the present invention;

wherein: 1. a first housing; 2. removing the top shell; 3. a top plate; 4. a groove; 5. a first motor; 6. a screw rod; 7. a top rod; 8. a vent hole; 9. a hollow box; 10. a second motor; 11. a rotating rod; 12. a fan blade; 13. a ventilation board; 14. a PCB board; 15. a fixing plate; 16. mounting holes; 17. a through hole; 18. a magnetic chip; 19. a heat sink; 20. a side groove; 21. a temperature sensor; 22. and a controller.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-6, the present invention provides a high efficiency heat dissipation planar transformer, which comprises a first casing 1, a second casing and a plurality of stacked PCB boards 14, wherein magnetic chips 18 are respectively arranged in the first casing 1 and the second casing, the first casing 1, the second casing and the magnetic chips 18 are all E-shaped, a heat sink 19 is arranged at the center position inside the first casing 1 and the second casing, the heat sink 19 is arranged in the middle of the magnetic chips 18, the heat inside the magnetic chips 18 is rapidly conducted to the outside of the first casing 1 and the second casing through the heat sink 19, so as to facilitate heat dissipation, a through hole 17 for inserting the magnetic chips 18 is arranged at the center position of the top surface of the PCB boards 14, the second casing comprises a top-removed casing 2 and a top plate 3, grooves 4 are arranged at the top surface of the top-removed casing 2 for installing and placing a first motor 5, a screw rod 6 and a push rod 7 at four corners, the first motor 5 is fixedly arranged at the bottom surface inside the grooves 4, the heat dissipation device is used for driving a screw rod 6 to rotate, the screw rod 6 is fixedly installed on an output shaft of a first motor 5, the screw rod 6 rotates to drive an ejector rod 7 to move in a groove 4, the screw rod 6 is in threaded connection with the ejector rod 7 and is used for ejecting a top plate 3, one end of the ejector rod 7 is fixedly connected with the top plate 3, a side groove 20 is formed in one side of the inner wall of a first shell 1, a temperature sensor 21 and a controller 22 are arranged in the side groove 20, the temperature sensor 21 is in signal connection with the controller 22, the controller 22 is in signal connection with the first motor 5, and a plurality of heat dissipation assemblies are further arranged on the top surface of the top plate 3;

when the working time of the planar transformer is too long, the magnetic chip 18 is overheated, the temperature sensor 21 senses high temperature and sends a signal to the controller 22, the controller 22 controls the first motor 5 to start, the first motor 5 drives the screw rod 6 to rotate, the screw rod 6 drives the ejector rod 7 to move away from the first motor 5, so that the ejector rod moves out of the groove 4 and jacks up the top plate 3, the magnetic chip 18 is exposed in the hollow space, and the heat dissipation effect on the magnetic chip 18 is improved.

As shown in fig. 1, fig. 2 and fig. 3, the embodiment further discloses that the heat dissipation assembly includes a second motor 10 and fan blades 12, the top surface of the top plate 3 is provided with a plurality of vent holes 8, a hollow box 9 is fixedly installed on the vent holes 8, the bottom surface inside the hollow box 9 is fixedly installed with the second motor 10, an output shaft of the second motor 10 is fixedly installed with a rotating rod 11, the surface of the rotating rod 11 is equidistantly distributed with a plurality of fan blades 12, and a box opening of the hollow box 9 is fixedly installed with a ventilation plate 13 with a ventilation opening;

the second motor 10 is started to drive the rotating rod 11 to rotate, the rotating rod 11 drives the fan blades 12 to rotate, wind power generated by rotation of the fan blades 12 is blown out through the ventilation openings in the ventilation plate 13 and blown out through the ventilation holes 8 to the magnetic chip 18, and the cooling and heat dissipation effects on the magnetic chip 18 are further enhanced.

As shown in fig. 5, the embodiment further discloses that four corners of the outer surfaces of the first housing 1 and the second housing are horizontally and fixedly provided with fixing plates 15, and the fixing plates 15 are provided with mounting holes 16;

the fixing plates 15 on the first shell 1 and the second shell are attached, and the fixing plates 15 on the first shell 1 and the second shell are fixedly locked together by using screws and nuts, so that the first shell 1 and the second shell can be fixed and are convenient to detach.

As shown in fig. 1 and 4, the present embodiment also discloses that the heat sink 19, the first housing 1, and the second housing are made of copper, which has excellent heat conductivity to further improve the heat dissipation efficiency and also has magnetic conductivity, so that the temperature rise of the transformer is reduced and the performance of the transformer is ensured.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a high-efficient heat dissipation planar transformer, includes PCB board (14) of first shell (1), second shell and a plurality of coincide, its characterized in that: the magnetic chip packaging structure is characterized in that magnetic chips (18) are arranged in the first shell (1) and the second shell, a through hole (17) for inserting the magnetic chip (18) is formed in the center of the top surface of the PCB (14), the second shell comprises a top removing shell (2) and a top plate (3), four corners of the top surface of the top removing shell (2) are provided with grooves (4), a first motor (5) is fixedly installed on the inner bottom surface of each groove (4), a lead screw (6) is fixedly installed on an output shaft of the first motor (5), the lead screw (6) is in threaded connection with a push rod (7), one end of the push rod (7) is fixedly connected with the top plate (3), a side groove (20) is formed in one side of the inner wall of the first shell (1), a temperature sensor (21) and a controller (22) are arranged in the side groove (20), the temperature sensor (21) is in signal connection with the controller (22), and the controller (22) is in signal connection with the first motor (5), and the top surface of the top plate (3) is also provided with a plurality of heat dissipation assemblies.

2. The high efficiency heat dissipating planar transformer of claim 1, wherein: the heat dissipation assembly comprises a second motor (10) and fan blades (12), a plurality of vent holes (8) are formed in the top surface of the top plate (3), a hollow box (9) is fixedly installed on each vent hole (8), the second motor (10) is fixedly installed on the inner bottom surface of the hollow box (9), a rotating rod (11) is fixedly installed on an output shaft of the second motor (10), and the surface of the rotating rod (11) is equidistantly provided with the fan blades (12).

3. The high efficiency heat dissipating planar transformer of claim 1, wherein: the first shell (1), the second shell and the magnetic chip (18) are all E-shaped, and a radiating fin (19) is arranged at the center position inside the first shell (1) and the second shell.

4. The high efficiency heat dissipating planar transformer of claim 1, wherein: the fixing plate (15) is horizontally and fixedly installed at four corners of the outer surface of the first shell (1) and the outer surface of the second shell, and a mounting hole (16) is formed in the fixing plate (15).

5. A high efficiency heat dissipating planar transformer as claimed in claim 2, wherein: and a box opening of the hollow box (9) is fixedly provided with a ventilation plate (13) with a ventilation opening.

6. A high efficiency heat dissipating planar transformer as claimed in claim 3, wherein: the radiating fins (19), the first shell (1) and the second shell are all made of copper.

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