CN211350352U

CN211350352U - LLC resonant circuit transformer of low pressure heavy current

Info

Publication number: CN211350352U
Application number: CN202020336700.9U
Authority: CN
Inventors: 陈文华; 肖学文
Original assignee: Shenzhen Yuanchi Electronic Co ltd
Current assignee: Shenzhen Yuanchi Electronic Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-08-25
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a LLC resonant circuit transformer of low pressure heavy current, include: the transformer comprises a base plate, a first framework, a second framework, a first magnetic core, a second magnetic core, a first primary coil, a second primary coil, a first secondary copper strip and a second secondary copper strip, wherein the first framework and the second framework are arranged on one side of the base plate; one side of the first secondary copper bar, which faces the first primary coil, is fixedly connected with the bottom plate, and one side of the second secondary copper bar, which faces the second primary coil, is fixedly connected with the bottom plate. The utility model discloses need not to adopt strand to carry out the coiling, simplify former production technology, processing is quick simple, effectively improves production efficiency, practices thrift manufacturing cost.

Description

LLC resonant circuit transformer of low pressure heavy current

Technical Field

The utility model relates to a transformer field especially relates to a LLC resonant circuit transformer of low pressure heavy current.

Background

A transformer generally comprises an iron core, a winding, a bobbin, and a coil, wherein the coil comprises a primary winding and a secondary winding. The LLC resonant circuit transformer is a high-efficiency, high-power-density and low-EMI voltage transformer, and generally adopts a double-slot framework, a primary winding and a secondary winding which are respectively wound in two slots and isolated from each other, so that a larger leakage flux exists, and the resonance inductance of a resonant cavity is realized by utilizing the leakage flux. The traditional LLC resonant circuit transformer of low pressure heavy current has following shortcoming: 1. the multi-strand wire is adopted for winding, the processing and manufacturing process is difficult, and the production efficiency is reduced; 2. and the pins cannot be accurately positioned by winding the stranded wires.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art not enough, providing a LLC resonant circuit transformer of low pressure heavy current, solving prior art, owing to adopt the strand wire coiling, lead to transformer manufacturing difficulty, production efficiency is low, the unable accurate positioning's of pin problem.

The technical scheme of the utility model as follows: a low-voltage high-current LLC resonant circuit transformer, comprising: the transformer comprises a base plate, a first framework, a second framework, a first magnetic core, a second magnetic core, a first primary coil, a second primary coil, a first secondary copper strip and a second secondary copper strip, wherein the first framework and the second framework are arranged on one side of the base plate; the first magnetic core is provided with a first lug and a second lug respectively, and the second magnetic core is provided with a third lug and a fourth lug respectively; the first lug and the third lug are respectively inserted into the first framework from two ends of the first framework, and the second lug and the fourth lug are respectively inserted into the second framework from two ends of the second framework; one side of the first secondary copper bar, which faces the first primary coil, is fixedly connected with the bottom plate, and one side of the second secondary copper bar, which faces the second primary coil, is fixedly connected with the bottom plate. The first primary coil and the second primary coil are respectively wound on the first framework and the second framework, the first primary coil and the second primary coil are wrapped by adhesive paper, a first lug and a second lug of a first magnetic core are respectively inserted into the first framework and the second framework, a third lug and a fourth lug of a second magnetic core are respectively inserted into the first framework and the second framework, the first magnetic core, the second magnetic core, the first framework and the second framework are fixed by the adhesive paper, the first primary coil and the first framework are further fixed on the bottom plate by a first secondary copper strip, the second primary coil, the second framework, the first magnetic core and the second magnetic core are fixed on the bottom plate by a second secondary copper strip, after the fixation, the first secondary copper strip and the second secondary copper strip are fixed on the bottom plate by adhesive dispensing, the first secondary copper strip and the second secondary copper strip are assembled by sheet-shaped first secondary copper strip and second secondary copper strip, and the winding is not required to be wound by a plurality of strands, the production process is simplified, the processing is quick and simple, the production efficiency is effectively improved, and the production cost is saved.

Further, the second secondary copper bar is U-shaped, and the first secondary copper bar includes: and the U-shaped secondary copper bar is arranged on the secondary copper bar connected with one side of the U-shaped secondary copper bar.

Furthermore, one end of the first secondary copper bar is provided with a magnetic ring; the magnetic ring is sleeved on the connecting secondary copper bar.

Further, the first magnetic core and the second magnetic core are both UU-shaped magnetic cores; the first framework and the second framework are both UU-shaped frameworks.

Furthermore, the bottom plate is an L-shaped bottom plate, and a first mounting hole and a second mounting hole are respectively formed in the bottom plate.

Further, the first secondary copper bar is installed on the bottom plate through the first installation hole; and the second secondary copper bar is arranged on the bottom plate through the second mounting hole. Set up first mounting hole, second mounting hole on the bottom plate, can realize the high-speed joint of first secondary copper bar, second secondary copper bar and bottom plate, improve production efficiency, and the mounted position of first secondary copper bar, second secondary copper bar is fixed, can realize the accurate positioning of pin.

By adopting the scheme, the utility model provides a LLC resonance circuit transformer of low pressure heavy current, fix first primary coil, first skeleton on the bottom plate through first secondary copper bar, fix second primary coil, second skeleton and first magnetic core, second magnetic core on the bottom plate through second secondary copper bar, after fixing, fix first secondary copper bar, second secondary copper bar on the bottom plate through the point is glued, set up first mounting hole, second mounting hole on the bottom plate, can realize the quick connection of first secondary copper bar, second secondary copper bar and bottom plate, improve production efficiency, and the mounted position of first secondary copper bar, second secondary copper bar is fixed, can realize the accurate location of pin; the flaky first-secondary copper strip and the flaky second-secondary copper strip are assembled, the multi-strand wires are not required to be wound, the original production process is simplified, the processing is quick and simple, the production efficiency is effectively improved, and the production cost is saved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the first secondary copper bar of the present invention;

fig. 4 is a schematic structural diagram of the bottom plate of the present invention.

Wherein: the transformer comprises a bottom plate 1, a first framework 2, a second framework 3, a first magnetic core 4, a second magnetic core 5, a first primary coil 6, a second primary coil 7, a first secondary copper strip 8, a second secondary copper strip 9, a first bump 10, a second bump 11, a third bump 12, a fourth bump 13, a magnetic ring 14, a U-shaped secondary copper strip 15, a connecting secondary copper strip 16, a first mounting hole 17 and a second mounting hole 18.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-4, the present invention provides a low-voltage and high-current LLC resonant circuit transformer, which includes: the transformer comprises a base plate 1, a first framework 2 and a second framework 3 which are arranged on one side of the base plate 1, a first magnetic core 4 and a second magnetic core 5 which are respectively arranged at two ends of the first framework 2, a first primary coil 6 and a second primary coil 7 which are respectively wound on the first framework 2 and the second framework 3, a first primary copper bar 8 sleeved on the first primary coil 6, and a second secondary copper bar 9 sleeved on the second primary coil 7; the first magnetic core 4 is provided with a first bump 10 and a second bump 11 respectively, and the second magnetic core 5 is provided with a third bump 12 and a fourth bump 13 respectively; the first lug 10 and the third lug 12 are respectively inserted into the first framework 2 from two ends of the first framework 2, and the second lug 11 and the fourth lug 13 are respectively inserted into the second framework 3 from two ends of the second framework 3; one side of the first secondary copper strip 8 facing the first primary coil 6 is fixedly connected with the bottom plate 1, and one side of the second secondary copper strip 9 facing the second primary coil 7 is fixedly connected with the bottom plate 1. Respectively winding a first primary coil 6 and a second primary coil 7 on a first framework 2 and a second framework 3, wrapping the first primary coil 6 and the second primary coil 7 by adhesive paper, respectively inserting a first lug 10 and a second lug 11 of a first magnetic core 4 into the first framework 2 and the second framework 3, respectively inserting a third lug 12 and a fourth lug 13 of a second magnetic core 5 into the first framework 2 and the second framework 3, respectively, fixing the first magnetic core 4, the second magnetic core 5, the first framework 2 and the second framework 3 by the adhesive paper, further fixing the first primary coil 6 and the first framework 2 on a bottom plate 1 by a first secondary copper strip 8, fixing the second primary coil 7, the second framework 3, the first magnetic core 4 and the second magnetic core 5 on the bottom plate 1 by a second secondary copper strip 9, fixing the first secondary copper strip 8 and the second secondary copper strip 9 on the bottom plate 1 by glue after fixing, the flaky first-secondary copper strip 8 and the flaky second-secondary copper strip 9 are assembled, winding of the stranded wires is not needed, the original production process is simplified, processing is quick and simple, production efficiency is effectively improved, and production cost is saved.

The second secondary copper bar 9 is U-shaped, the first secondary copper bar 8 includes: a U-shaped secondary copper bar 15, a connecting secondary copper bar 16 mounted to one side of the U-shaped secondary copper bar 15.

One end of the first secondary copper bar 8 is provided with a magnetic ring 14; the magnetic ring 14 is sleeved on the connecting secondary copper bar 16.

The first magnetic core 4 and the second magnetic core 5 are both UU-shaped magnetic cores; the first framework 2 and the second framework 3 are both UU-shaped frameworks.

The base plate 1 is an L-shaped base plate 1, and the base plate 1 is provided with a first mounting hole 17 and a second mounting hole 18 respectively.

The first secondary copper bar 8 is installed on the bottom plate 1 through the first installation hole 17; the second secondary copper bar 9 is mounted on the bottom plate 1 through the second mounting hole 18. Set up first mounting hole 17, second mounting hole 18 on bottom plate 1, can realize the high-speed joint of first secondary copper bar 8, second secondary copper bar 9 and bottom plate 1, improve production efficiency, and the mounted position of first secondary copper bar 8, second secondary copper bar 9 is fixed, can realize the accurate positioning of pin.

To sum up, the utility model provides a LLC resonance circuit transformer of low pressure heavy current fixes first primary coil, first skeleton on the bottom plate through first secondary copper bar, fixes second primary coil, second skeleton and first magnetic core, second magnetic core on the bottom plate through second secondary copper bar, after fixing, fixes first secondary copper bar, second secondary copper bar on the bottom plate through the point is glued, set up first mounting hole, second mounting hole on the bottom plate, can realize the quick connection of first secondary copper bar, second secondary copper bar and bottom plate, improve production efficiency, and the mounted position of first secondary copper bar, second secondary copper bar is fixed, can realize the accurate location of pin; the flaky first-secondary copper strip and the flaky second-secondary copper strip are assembled, the multi-strand wires are not required to be wound, the original production process is simplified, the processing is quick and simple, the production efficiency is effectively improved, and the production cost is saved.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An LLC resonant circuit transformer of low pressure heavy current characterized in that includes: the transformer comprises a base plate, a first framework, a second framework, a first magnetic core, a second magnetic core, a first primary coil, a second primary coil, a first secondary copper strip and a second secondary copper strip, wherein the first framework and the second framework are arranged on one side of the base plate; the first magnetic core is provided with a first lug and a second lug respectively, and the second magnetic core is provided with a third lug and a fourth lug respectively; the first lug and the third lug are respectively inserted into the first framework from two ends of the first framework, and the second lug and the fourth lug are respectively inserted into the second framework from two ends of the second framework; one side of the first secondary copper bar, which faces the first primary coil, is fixedly connected with the bottom plate, and one side of the second secondary copper bar, which faces the second primary coil, is fixedly connected with the bottom plate.

2. A low voltage high current LLC resonant circuit transformer as claimed in claim 1, wherein said second secondary copper bar is U-shaped, and said first secondary copper bar comprises: and the U-shaped secondary copper bar is arranged on the secondary copper bar connected with one side of the U-shaped secondary copper bar.

3. A low voltage high current LLC resonant circuit transformer as claimed in claim 2, wherein one end of said first secondary copper bar is provided with a magnetic ring; the magnetic ring is sleeved on the connecting secondary copper bar.

4. A low voltage high current LLC resonant circuit transformer as claimed in claim 1, wherein said first and second magnetic cores are UU-shaped magnetic cores; the first framework and the second framework are both UU-shaped frameworks.

5. A low-voltage high-current LLC resonant circuit transformer according to claim 2, wherein said bottom plate is an L-shaped bottom plate, and said bottom plate is provided with a first mounting hole and a second mounting hole respectively.

6. A low voltage high current LLC resonant circuit transformer as claimed in claim 5, wherein said first secondary copper bar is mounted on said base plate via said first mounting hole; and the second secondary copper bar is arranged on the bottom plate through the second mounting hole.