CN218957516U

CN218957516U - Laminated transformer with small volume and high power

Info

Publication number: CN218957516U
Application number: CN202223429570.1U
Authority: CN
Inventors: 范伟雄; 吴美玲; 王锦付
Original assignee: Meizhou Weimeida Electronic Co ltd
Current assignee: Meizhou Weimeida Electronic Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-02
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses a lamination type transformer with a small volume and high power, which relates to the technical field of lamination type transformers and aims to solve the problems that an enameled wire and a magnetic core are mainly supported by a framework of the existing high-power transformer, and the winding structure occupies a large space, so that the winding structure cannot be applied to small-sized electronic equipment, is difficult to mass production and has high manufacturing cost. The outer wall of the laminated transformer body is provided with a magnetic core, and a magnetic column is fixedly arranged at the middle position of the magnetic core; further comprises: the first PCB is fixedly arranged at one end of the magnetic column, and the second PCB is fixedly arranged at the other end of the magnetic column; the copper sheet, its fixed mounting is in on the outer wall of magnetic column, and it installs a plurality of, the one end fixed mounting of copper sheet has first copper sheet stitch, the other end fixed mounting of copper sheet has the second copper sheet stitch, the below fixed mounting of magnetic core has the bottom PCB board, four angle departments of bottom PCB board outer wall all are provided with PCB board installation through-hole.

Description

Laminated transformer with small volume and high power

Technical Field

The utility model relates to the technical field of laminated transformers, in particular to a laminated transformer with a small volume and high power.

Background

A transformer is a device for changing an ac voltage using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, etc.; currently, electronic devices are continually evolving towards smaller volumes, higher power densities, and higher efficiencies. As one of the key elements in electronic devices, transformers have become smaller in size, lighter in weight, and improved in performance, which have been pursued by those skilled in the art.

However, the existing high-power transformer mainly supports the enameled wire and the magnetic core through the framework, and the winding structure occupies a large space, so that the winding structure cannot be applied to small-sized electronic equipment, is difficult in mass production and has high manufacturing cost; therefore, the existing requirements are not met, and for this reason we propose a laminated transformer with small volume and high power.

Disclosure of Invention

The utility model aims to provide a laminated transformer with small volume and high power, which aims to solve the problems that the prior high power transformer provided in the background technology mainly supports enameled wires and magnetic cores through a framework, and the winding structure occupies large space, so that the transformer cannot be applied to small electronic equipment, is difficult to mass production and has high manufacturing cost.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a high power laminated transformer having a small volume, comprising: the laminated transformer comprises a laminated transformer body, wherein a magnetic core is arranged on the outer wall of the laminated transformer body, and a magnetic column is fixedly arranged at the middle position of the magnetic core;

further comprises:

the first PCB is fixedly arranged at one end of the magnetic column, and the second PCB is fixedly arranged at the other end of the magnetic column;

the copper sheets are fixedly arranged on the outer wall of the magnetic column and are provided with a plurality of copper sheets, one end of each copper sheet is fixedly provided with a first copper sheet stitch, and the other end of each copper sheet is fixedly provided with a second copper sheet stitch.

Preferably, the bottom PCB is fixedly installed below the magnetic core, and PCB installation through holes are formed in four corners of the outer wall of the bottom PCB.

Preferably, the lower ends of the first PCB and the second PCB are uniformly provided with first positioning pins.

Preferably, the upper ends of the first PCB and the second PCB are uniformly provided with second positioning pins.

Preferably, a plurality of pin through holes are formed in the outer wall of the bottom PCB.

Preferably, a copper sheet through hole is arranged at the middle position of the outer wall of the copper sheet.

Preferably, the middle positions of the outer walls of the first PCB and the second PCB are respectively provided with a PCB through hole.

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

1. according to the laminated transformer, the magnetic core, the copper sheets, the first PCB and the second PCB are arranged to achieve the effect of reducing the volume, the plurality of copper sheets are arranged on the magnetic column, meanwhile, the first PCB and the plurality of second PCBs are also arranged at the magnetic column together in a reading/35764-DEG mode, so that the problem that the volume of the transformer is overlarge due to the fact that a large number of external enameled wires are needed for winding and a framework are needed for a traditional transformer is solved, the installation occupied space of the laminated transformer is small, and particularly, transformer elements with small volume and high power requirements, such as a switching power supply with special requirements on the length and the height dimension, are well solved.

2. The bottom PCB board is used for playing the effect of composite connection, and PCB board installation through-hole can be combined with the first locating pin of PCB board department, makes the PCB board install more stable firm, and the stitch through-hole is used for supplying the stitch to pass, makes the stitch can be combined with the circuit board of below, and above-mentioned structure not only combines with top PCB board and below circuit board to copper sheet in the aspect, can also play restriction and fixed effect, improves the security.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of a copper sheet according to the present utility model;

fig. 3 is a schematic view of a partial structure of a first PCB board according to the present utility model;

fig. 4 is a schematic view of a partial structure of a bottom PCB board according to the present utility model;

in the figure: 1. a laminated transformer body; 2. a magnetic core; 3. a first PCB board; 4. a magnetic column; 5. copper sheets; 6. a second PCB board; 7. a bottom PCB board; 8. a PCB board mounting through hole; 9. stitch through holes; 10. a first copper sheet stitch; 11. a second copper sheet stitch; 12. copper sheet through holes; 13. a first positioning pin; 14. a second positioning pin; 15. and a PCB board through hole.

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.

Referring to fig. 1-4, an embodiment of the present utility model is provided: a high power laminated transformer having a small volume, comprising: the laminated transformer comprises a laminated transformer body 1, wherein a magnetic core 2 is arranged on the outer wall of the laminated transformer body 1, and a magnetic column 4 is fixedly arranged in the middle of the magnetic core 2;

further comprises:

the first PCB 3 is fixedly arranged at one end of the magnetic column 4, a plurality of first PCBs are arranged on the first PCB, and a plurality of second PCBs 6 are fixedly arranged at the other end of the magnetic column 4;

the copper sheets 5 are fixedly arranged on the outer wall of the magnetic column 4 and are provided with a plurality of copper sheet pins 10, one end of each copper sheet 5 is fixedly provided with a first copper sheet pin 10, and the other end of each copper sheet 5 is fixedly provided with a second copper sheet pin 11;

through setting up magnetic core 2, copper sheet 5, first PCB board 3 and second PCB board 6 play the effect of reducing the volume, through installing a plurality of copper sheets 5 on magnetic column 4, read 357640+ song simultaneously first PCB board 3 and a plurality of second PCB board 6 also together install in magnetic column 4 department, this makes etched winding coil and magnetic coupling on the PCB board, compare the too big problem of transformer volume that traditional transformer needs a large amount of external enameled wire windings and skeleton to lead to, this lamination formula transformer body 1 installs occupation space little, the transformer component that needs little volume and high power requirement especially has special requirement like having the switching power supply of special requirement to length and high size to obtain fine solution.

Referring to fig. 1 and 4, a bottom PCB 7 is fixedly mounted below the magnetic core 2, PCB mounting through holes 8 are formed in four corners of the outer wall of the bottom PCB 7, the bottom PCB 7 is used for achieving the effect of combined connection, and the PCB mounting through holes 8 can be combined with first positioning pins 13 at the PCB to enable the PCB to be mounted more stably and firmly.

Referring to fig. 1 and 3, the lower ends of the first PCB 3 and the second PCB 6 are uniformly provided with first positioning pins 13, and the first positioning pins 13 can be inserted into the PCB mounting through holes 8 and combined with the circuit board downward.

Referring to fig. 1 and 3, the upper ends of the first PCB 3 and the second PCB 6 are uniformly provided with second positioning pins 14, and the second positioning pins 14 are used for being combined with a housing assembly (not shown in the drawings) above to achieve the effect of positioning and fixing.

Referring to fig. 4, a plurality of pin through holes 9 are provided on the outer wall of the bottom PCB 7, and the pin through holes 9 are used for pins to pass through, so that the pins can be combined with the circuit board below.

Referring to fig. 1 and 2, a copper sheet through hole 12 is provided in the middle of the outer wall of the copper sheet 5, and the copper sheet through hole 12 is used for fixing the copper sheet 5 on the magnetic post 4.

Referring to fig. 1 and 3, a PCB through hole 15 is disposed at the middle position of the outer walls of the first PCB 3 and the second PCB 6, and the PCB through hole 15 is used for mounting the PCB at the magnetic column 4.

Working principle: when the laminated transformer is used, the effect of reducing the volume is achieved by arranging the magnetic core 2, the copper sheets 5, the first PCB 3 and the second PCB 6, and the plurality of copper sheets 5 are arranged on the magnetic column 4, meanwhile, the first PCB 3 and the plurality of second PCB 6 are also arranged at the magnetic column 4 together in a reading/35764-way mode, so that the etched winding coil on the PCB is coupled with magnetism, compared with the problem that the volume of the transformer is overlarge due to the fact that a large number of external enameled wires are needed for winding and a framework of a traditional transformer, the laminated transformer body 1 is small in installation occupation space, and particularly, transformer elements with small volume and high power requirements, such as a switching power supply with special requirements on the length and the height size, are well solved; the bottom PCB 7 is used for playing the effect of composite connection, PCB board installation through-hole 8 can be combined with the first locating pin 13 of PCB board department, make the PCB board install more stable firm, first locating pin 13 can insert in the PCB board installation through-hole 8, and downwards combine with the circuit board, second locating pin 14 is used for combining with the casing subassembly of top (not shown in the figure), play the fixed effect of location, stitch through-hole 9 is used for supplying the stitch to pass, make the stitch can be combined with the circuit board of below, copper sheet through-hole 12 is used for fixing copper sheet 5 on magnetic column 4, PCB board through-hole 15 is used for installing the PCB board in magnetic column 4 department.

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

1. The utility model provides a high-power lamination formula transformer with little volume, includes lamination formula transformer body (1), the outer wall of lamination formula transformer body (1) is provided with magnetic core (2), the intermediate position department of magnetic core (2) is fixed with magnetic pillar (4);

the method is characterized in that: further comprises:

the first PCB (3) is fixedly arranged at one end of the magnetic column (4), and the second PCB (6) is fixedly arranged at the other end of the magnetic column (4);

copper sheet (5), its fixed mounting is in on the outer wall of magnetic column (4), and it installs a plurality ofly, the one end fixed mounting of copper sheet (5) has first copper sheet stitch (10), the other end fixed mounting of copper sheet (5) has second copper sheet stitch (11).

2. A high power stacked transformer with small volume as claimed in claim 1, wherein: the bottom PCB (7) is fixedly arranged below the magnetic core (2), and PCB mounting through holes (8) are formed in four corners of the outer wall of the bottom PCB (7).

3. A high power stacked transformer with small volume as claimed in claim 1, wherein: the lower ends of the first PCB (3) and the second PCB (6) are uniformly provided with first positioning pins (13).

4. A high power stacked transformer with small volume as claimed in claim 1, wherein: the upper ends of the first PCB (3) and the second PCB (6) are uniformly provided with second positioning pins (14).

5. A high power stacked chip transformer having a small volume as claimed in claim 2, wherein: a plurality of pin through holes (9) are formed in the outer wall of the bottom PCB (7).

6. A high power stacked transformer with small volume as claimed in claim 1, wherein: and a copper sheet through hole (12) is formed in the middle of the outer wall of the copper sheet (5).

7. A high power stacked transformer with small volume as claimed in claim 1, wherein: and the middle positions of the outer walls of the first PCB (3) and the second PCB (6) are respectively provided with a PCB through hole (15).