CN213424790U

CN213424790U - High-power resonant transformer

Info

Publication number: CN213424790U
Application number: CN202022817415.1U
Authority: CN
Inventors: 朱政权; 王毅; 时伟光; 毛建勇
Original assignee: Friendship Nano Crystal Technology Co ltd
Current assignee: Friendship Nano Crystal Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-06-11
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to an electronic transformer technical field discloses a high-power resonance transformer, including top magnetic core, bottom magnetic core, PM type no pin support skeleton, PCB bottom plate and winding lead-out wire, top magnetic core and bottom magnetic core middle part all are provided with the center post, the center post center begins to have the heat dissipation mesopore, the vent has been seted up to the ventilation groove outer wall, the pin fixed orifices has been seted up to PCB bottom plate upper surface, top magnetic core top is located to the bottom magnetic core, PM type no pin support skeleton is located between top magnetic core and the bottom magnetic core. The utility model discloses in, be in the same place original transformer and resonance inductor are integrated to reach the product integrate, miniaturized, under not influencing product property condition, the PM type does not have the partial vent of pin support chassis ventilation groove in order to reach the inside heat problem of derivation device, the PM type does not have pin support chassis can wrap up most part coil in the magnetic core, the coil formed disperse the interference accessible magnetic core and absorb.

Description

High-power resonant transformer

Technical Field

The utility model belongs to the technical field of electronic transformer, specifically be a high-power resonance 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. In brief, it is mainly composed of a high-frequency transformer core (iron core) and two or more coils, which do not change their positions, and are converted into alternating voltage and current from one or more electric loops by means of electromagnetic induction through alternating current power. At the output end of the high-frequency transformer, high-frequency alternating current or direct current with different voltage grades is supplied to one or more than two circuit loops;

currently, electronic devices are continuously moving toward smaller size, higher integration, and higher efficiency. As one of the key components in electronic devices, transformers have become smaller in size, lighter in weight, and higher in efficiency, and are always the direction of pursuit of efforts by those skilled in the art. The resonant transformer is used as an important component in an LLC resonant switching circuit, and can only be used for medium and small power due to the difficulty in solving the problems of temperature rise and EMI.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to solve the problem that electronic devices are continuously developed toward smaller size, higher integration and higher efficiency. As one of the key components in electronic devices, transformers have become smaller in size, lighter in weight, and higher in efficiency, and are always the direction of pursuit of efforts by those skilled in the art. The resonant transformer is used as an important component in an LLC resonant switching circuit, and the problem that the resonant transformer can only be used for medium and low power is difficult to solve due to the problems of temperature rise and EMI, so that the high-power resonant transformer is provided.

The utility model adopts the technical scheme as follows: the utility model provides a high-power resonance transformer, includes top magnetic core, bottom magnetic core, PM type pin-free supporting skeleton, PCB bottom plate and winding lead-out wire, top magnetic core and bottom magnetic core middle part all are provided with the center post, the center post center begins to have the heat dissipation mesopore, top magnetic core and bottom magnetic core left and right sides all are provided with the side pole, the spliced pole has been seted up at PM type pin-free supporting skeleton middle part, winding groove and ventilation groove have been seted up to PM type pin-free supporting skeleton outer wall, the ventilation opening has been seted up to ventilation groove outer wall, the pin fixed orifices has been seted up to PCB bottom plate upper surface, top magnetic core top is located to the bottom magnetic core, PM type pin-free supporting skeleton is located between top.

In a preferred embodiment, the number of winding slots is two, and the winding slot outer wall is provided with a winding, and the ventilation slot is located between the two winding slots.

In a preferred embodiment, the winding lead-out wire is fixed inside the pin fixing hole.

In a preferred embodiment, the connecting column is a hollow structure, and the connecting column is sleeved on the outer walls of the two central columns.

In a preferred embodiment, the winding lead wire is wound by using a plurality of strands of enameled wires.

In a preferred embodiment, the PCB bottom plate is fixedly attached to the bottom of the top magnetic core.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses in, be in the same place original transformer and resonance inductor are integrated, in order to reach the integration of product, it is miniaturized, under the performance condition of product not influencing, set up the heat dissipation mesopore through well stem middle part, the partial vent in PM type no pin support skeleton ventilation groove is in order to reach the inside heat problem of derivation device, PM type no pin support skeleton can wrap up the major part coil in the magnetic core, the dispersion that the coil formed disturbs the accessible magnetic core and absorbs, and this novel integrated resonance inductor simple structure is fit for batch production, certain industrial value and market competition have.

Drawings

Fig. 1 is a schematic diagram of a structure of a high-power resonant transformer of the present invention;

fig. 2 is a schematic structural diagram of a magnetic core in a high-power resonant transformer according to the present invention;

fig. 3 is a schematic structural diagram of a PM type pinless supporting framework in the high-power resonant transformer of the present invention;

fig. 4 is the structural schematic diagram of the PCB bottom plate in the high-power resonant transformer of the present invention.

The labels in the figure are: the magnetic core comprises a top magnetic core 1, a bottom magnetic core 2, a 3-PM type pin-free supporting framework, a PCB bottom plate 4, a winding outgoing line 5, a center column 6, a side column 7, a heat dissipation middle hole 8, a connecting column 9, a winding groove 10, a ventilation groove 11, a ventilation hole 12 and a pin fixing hole 13.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, a high-power resonant transformer comprises a top magnetic core 1, a bottom magnetic core 2, a PM type pinless supporting framework 3, a PCB baseplate 4 and a winding outgoing line 5, wherein the winding outgoing line 5 is wound by adopting a plurality of strands of enameled wires, the PCB baseplate 4 is fixedly connected to the bottom of the top magnetic core 1, central columns 6 are respectively arranged in the middle parts of the top magnetic core 1 and the bottom magnetic core 2, a heat dissipation middle hole 8 is arranged in the center of each central column 6, side columns 7 are respectively arranged on the left side and the right side of the top magnetic core 1 and the bottom magnetic core 2, a connecting column 9 is arranged in the middle part of the PM type pinless supporting framework 3, the connecting column 9 is of a hollow structure, the connecting column 9 is sleeved on the outer walls of the two central columns 6, winding grooves 10 and ventilation grooves 11 are arranged on the outer wall of the PM type, vent 12 has been seted up to 11 outer walls in ventilation groove, and pin fixed orifices 13 have been seted up to 4 upper surfaces of PCB bottom plate, and inside winding lead-out wire 5 was fixed in pin

fixed orifices

13, 1 tops of top magnetic core were located to bottom magnetic core 2, and PM type does not have pin support chassis 3 and locates between top magnetic core 1 and the bottom magnetic core 2.

The utility model discloses high-power resonance transformer, the magnetic core comprises top magnetic core 1 and bottom magnetic core 2, the magnetic core includes a center post 6 and two side columns 7, center post 6 is equipped with heat dissipation mesopore 8, PM type does not have pin support skeleton and is equipped with spliced pole 9, this cylinder overlaps in magnetic core center post 6, PM type does not have pin support skeleton and is equipped with the trislot, the winding is around winding groove 10, ventilation groove 11 is equipped with partial vent 12, winding lead-out wire 5 is fixed in PCB bottom plate 4, PCB bottom plate 4 plays the effect of keeping apart with fixed pin, PM type does not have pin support skeleton and adopts plastic powder injection moulding to establish and set up spliced pole 9, this spliced pole 9 overlaps in magnetic core center post 6, the winding is coiled according to the orientation along skeleton cavity cylinder by stranded enameled wire, and two windings are inconsistent through winding lead-out wire 5 both sides distance of bottom plate, in order to reach, Glue is used for fixing between the magnetic core and the PCB bottom plate 4 and between the pins and the PCB plate 4.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a high-power resonance transformer, includes top magnetic core (1), bottom magnetic core (2), no pin supporting framework of PM type (3), PCB bottom plate (4) and winding lead-out wire (5), its characterized in that: top magnetic core (1) and bottom magnetic core (2) middle part all are provided with center post (6), center post (6) center begins to have heat dissipation mesopore (8), top magnetic core (1) and bottom magnetic core (2) left and right sides all are provided with side column (7), spliced pole (9) have been seted up at PM type no pin supporting framework (3) middle part, winding groove (10) and ventilation groove (11) have been seted up to PM type no pin supporting framework (3) outer wall, ventilation groove (12) have been seted up to ventilation groove (11) outer wall, pin fixed orifices (13) have been seted up to PCB bottom plate (4) upper surface, top magnetic core (1) top is located in bottom magnetic core (2), PM type no pin supporting framework (3) are located between top magnetic core (1) and bottom magnetic core (2).

2. A high power resonant transformer as recited in claim 1, wherein: the number of the winding slots (10) is two, the outer wall of each winding slot (10) is provided with a winding, and the ventilation slots (11) are located between the two winding slots (10).

3. A high power resonant transformer as recited in claim 1, wherein: and the winding outgoing line (5) is fixed in the pin fixing hole (13).

4. A high power resonant transformer as recited in claim 1, wherein: the connecting column (9) is of a hollow structure, and the connecting column (9) is sleeved on the outer walls of the two central columns (6).

5. A high power resonant transformer as recited in claim 1, wherein: and the winding lead-out wire (5) is wound by adopting a plurality of strands of enameled wires.

6. A high power resonant transformer as recited in claim 1, wherein: the PCB bottom plate (4) is fixedly connected to the bottom of the top magnetic core (1).