CN211350330U - Novel LLC resonant circuit transformer - Google Patents
Novel LLC resonant circuit transformer Download PDFInfo
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- CN211350330U CN211350330U CN202020339082.3U CN202020339082U CN211350330U CN 211350330 U CN211350330 U CN 211350330U CN 202020339082 U CN202020339082 U CN 202020339082U CN 211350330 U CN211350330 U CN 211350330U
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Abstract
The utility model discloses a novel LLC resonant circuit transformer, include: the transformer comprises a bottom 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 bar, a plurality of second secondary copper bars, a third secondary copper bar and a plurality of fourth secondary copper bars, wherein the first framework and the second framework are arranged on the upper side of the bottom plate; the first secondary copper bar and one sides of the plurality of second secondary copper bars, which face the first primary coil, are fixedly connected with the bottom plate; and one side of the third secondary copper bar and one side of the fourth secondary copper bars, which face the second primary coil, are fixedly connected with the bottom plate. The utility model discloses can satisfy the requirement of the miniaturized, high power of transformer, and when assembling it to power product, cross the tin stove effect better, the product uniformity is strong, and the qualification rate reaches 98%.
Description
Technical Field
The utility model relates to a transformer field especially relates to a novel LLC resonant circuit transformer.
Background
The transformer generally comprises an iron core, a winding wire, a winding frame and a coil, wherein the coil comprises a primary coil and a secondary copper bar. The LLC resonant circuit transformer is a high-efficiency, high-power-density and low-EMI voltage transformer, and generally adopts a double-groove framework, a primary coil and a secondary copper bar which are respectively wound in two grooves and isolated from each other, so that large leakage magnetic flux exists, and the resonance inductance of a resonant cavity is realized by utilizing the leakage magnetic flux. The traditional LLC resonant circuit transformer has the following disadvantages: 1. when the transformer converts different voltages, the lengths of the coils are different, and in the prior art, the length of the secondary copper bar of the transformer is usually fixed, only the transformation of one voltage can be realized, the production of the transformer outputting low voltage and high voltage cannot be simultaneously met, and the requirement of standardized production cannot be met; 2. the secondary copper bar is in the center, so that the heat dissipation is poor, the service life of the transformer is shortened, and the requirement on the miniaturization of the transformer cannot be met.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art, providing a novel LLC resonant circuit transformer, solving the problems that the requirement of standardized production cannot be met and the practicability is low in the prior art; meanwhile, the problem that the heat dissipation of the transformer is poor and miniaturization cannot be met due to the fact that the secondary copper bar is in the center is solved.
The technical scheme of the utility model as follows: a novel LLC resonant circuit transformer, comprising: the transformer comprises a bottom 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 bar, a plurality of second secondary copper bars, a third secondary copper bar and a plurality of fourth secondary copper bars, wherein the first framework and the second framework are arranged on the upper side of the bottom 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, the second lug and the fourth lug are respectively inserted into the second framework from two ends of the second framework, and the first secondary copper strips and one sides of the second secondary copper strips, which face the first primary coil, are fixedly connected with the bottom plate; and one side of the third secondary copper bar and one side of the fourth secondary copper bars, which face the second primary coil, are 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 and a second 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 third secondary copper strip and a fourth secondary copper strip, and after the fixation, the first secondary copper strip, the second secondary copper strip, the third secondary copper strip and the fourth secondary copper strip are installed on the bottom plate by means of adhesive dispensing, the first secondary copper strip, the second secondary copper strip, the third secondary copper strip and the fourth secondary copper strip are assembled, and the first secondary copper strip, the second secondary copper strip, the third secondary copper strip and the fourth secondary copper strip are arranged on the outer sides of the first primary coil and the second primary coil at intervals, so that the whole heat dissipation of the LLC resonant circuit transformer is facilitated, and the heat dissipation efficiency and the heat conductivity of the LLC resonant circuit transformer are improved; aiming at the transformer with the same specification, the LLC resonant circuit transformer can be made into higher power, can meet the requirements of miniaturization and high power of the transformer, and has better tin furnace effect and strong product consistency when being assembled on a power supply product, and the qualification rate reaches 98 percent; the second secondary copper bar, the quantity of fourth secondary copper bar can be set for according to transformer conversion voltage's size, when the transformer is to high-voltage, many second secondary copper bars of equipment, fourth secondary copper bar, when the transformer is to low-voltage, the less second secondary copper bar of equipment quantity, fourth secondary copper bar, according to the size of voltmeter transform voltage, adjust the second secondary copper bar, the quantity of fourth secondary copper bar, in order to satisfy the different conversion voltage's of transformer demand, reach standardized production purpose, improve LLC resonant circuit transformer's practicality.
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 three first mounting holes, a plurality of second mounting holes, two third mounting holes and a plurality of fourth mounting holes are formed in the bottom plate.
Furthermore, the first secondary copper bar, the second secondary copper bar, the third secondary copper bar and the fourth secondary copper bar are respectively installed on the bottom plate through the first installation hole, the second installation hole, the third installation hole and the fourth installation hole. First secondary copper bar, second secondary copper bar, third secondary copper bar, fourth secondary copper bar are respectively through first mounting hole, second mounting hole, third mounting hole, fourth mounting hole interval installation on the bottom plate, are favorable to the holistic heat dissipation of LLC resonant circuit transformer, improve the thermal diffusivity. Furthermore, one side of the first secondary copper strip is provided with a magnetic ring, and one end of the first secondary copper strip is inserted into the magnetic ring and is inserted into the first mounting hole to be fixedly connected with the bottom plate.
Furthermore, the number of the second secondary copper bars and the number of the fourth secondary copper bars are both one, and the number of the second mounting holes and the number of the fourth mounting holes are both two.
Furthermore, separation seams are arranged between the first secondary copper bar and the adjacent second secondary copper bar, and between any two adjacent second secondary copper bars.
Further, the first secondary copper bar and the adjacent second secondary copper bar, and any two adjacent second secondary copper bars are arranged at equal intervals.
Furthermore, separation seams are arranged between the third-secondary copper bar and the fourth-secondary copper bar adjacent to the third-secondary copper bar, and between any two adjacent fourth-secondary copper bars.
Further, the third-secondary copper bar and the fourth-secondary copper bar adjacent to the third-secondary copper bar are arranged at equal intervals, and any two adjacent fourth-secondary copper bars are arranged at equal intervals.
By adopting the scheme, the utility model provides a novel LLC resonance circuit transformer assembles through adopting flaky first secondary copper bar, second secondary copper bar, third secondary copper bar, fourth secondary copper bar, and sets up first secondary copper bar, second secondary copper bar, third secondary copper bar, fourth secondary copper bar interval in the outside of first primary coil, second primary coil, is favorable to the holistic heat dissipation of LLC resonance circuit transformer, improves its heat dissipation efficiency, heat conductivity; aiming at the transformer with the same specification, the LLC resonant circuit transformer can be made into higher power, can meet the requirements of miniaturization and high power of the transformer, and has better tin furnace effect and strong product consistency when being assembled on a power supply product, and the qualification rate reaches 98 percent; the quantity of the second secondary copper bar and the fourth secondary copper bar can be set according to the size of the transformer conversion voltage so as to meet the requirements of the transformer on different conversion voltages, achieve the aim of standardized production and improve the practicability of the LLC resonant circuit transformer.
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 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 third secondary copper strip 10, a fourth secondary copper strip 11, a first bump 12, a second bump 13, a third bump 14, a fourth bump 15, a first mounting hole 16, a second mounting hole 17, a third mounting hole 18, a fourth mounting hole 19 and a magnetic ring 20.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, the present invention provides a novel LLC resonant circuit transformer, including: the transformer comprises a bottom plate 1, a first framework 2 and a second framework 3 which are arranged on the upper side of the bottom 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 secondary copper bar 8 and a plurality of second secondary copper bars 9 which are sleeved on the first primary coil 6, and a third secondary copper bar 10 and a plurality of fourth secondary copper bars 11 which are sleeved on the second primary coil 7; the first magnetic core 4 is provided with a first bump 12 and a second bump 13 respectively, and the second magnetic core 5 is provided with a third bump 14 and a fourth bump 15 respectively; the first bump 12 and the third bump 14 are respectively inserted into the first framework 2 from two ends of the first framework 2, the second bump 13 and the fourth bump 15 are respectively inserted into the second framework 3 from two ends of the second framework 3, and one sides of the first secondary copper bar 8 and the second secondary copper bars 9 facing the first primary coil 6 are fixedly connected with the bottom plate 1; the third secondary copper bar 10 and one sides of the fourth secondary copper bars 11 facing the second primary coil 7 are 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 12 and a second lug 13 of a first magnetic core 4 into the first framework 2 and the second framework 3, respectively inserting a third lug 14 and a fourth lug 15 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 and a second secondary copper strip 9, fixing the second primary coil 7, the second framework 3, the first magnetic core 4 and the second framework 5 on the bottom plate 1 by a third secondary copper strip 10 and a fourth secondary copper strip 11, and after fixing, dispensing the first secondary copper strip 8 and the second magnetic core 5, The second secondary copper bar 9, the third secondary copper bar 10 and the fourth secondary copper bar 11 are installed on the bottom plate 1, the first secondary copper bar 8, the second secondary copper bar 9, the third secondary copper bar 10 and the fourth secondary copper bar 11 are assembled in a sheet shape, and the first secondary copper bar 8, the second secondary copper bar 9, the third secondary copper bar 10 and the fourth secondary copper bar 11 are arranged on the outer sides of the first primary coil 6 and the second primary coil 7 at intervals, so that the whole heat dissipation of the LLC resonant circuit transformer is facilitated, and the heat dissipation efficiency and the heat conductivity of the LLC resonant circuit transformer are improved; aiming at the transformer with the same specification, the LLC resonant circuit transformer can be made into higher power, can meet the requirements of miniaturization and high power of the transformer, and has better tin furnace effect and strong product consistency when being assembled on a power supply product, and the qualification rate reaches 98 percent; the number of the second secondary copper bars 9 and the fourth secondary copper bars 11 can be set according to the voltage conversion value of the transformer, when the transformer is used for high voltage, a plurality of the second secondary copper bars 9 and the fourth secondary copper bars 11 are assembled, when the transformer is used for low voltage, the second secondary copper bars 9 and the fourth secondary copper bars 11 with small number are assembled, and the number of the second secondary copper bars 9 and the fourth secondary copper bars 11 is adjusted according to the voltage conversion value of the voltage transformer so as to meet the requirements of the transformer on different conversion voltages, achieve the aim of standardized production and improve the practicability of the LLC resonant circuit transformer; specifically, in this embodiment, the number of the second secondary copper bars 9 and the fourth secondary copper bars 11 is one, and the conversion is performed for a low voltage.
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.
Referring to fig. 3, specifically, in the present embodiment, the bottom plate 1 is an L-shaped bottom plate 1, and three first mounting holes 16, two second mounting holes 17, two third mounting holes 18, and two fourth mounting holes 19 are disposed on the bottom plate 1. The first secondary copper bar 8, the second secondary copper bar 9, the third secondary copper bar 10 and the fourth secondary copper bar 11 are respectively installed on the bottom plate 1 through the first installation hole 16, the second installation hole 17, the third installation hole 18 and the fourth installation hole 19. The first secondary copper bar 8, the second secondary copper bar 9, the third secondary copper bar 10 and the fourth secondary copper bar 11 are respectively installed on the bottom plate 1 at intervals through the first mounting hole 16, the second mounting hole 17, the third mounting hole 18 and the fourth mounting hole 19, so that the whole heat dissipation of the LLC resonant circuit transformer is facilitated, and the heat dissipation performance is improved.
One side of the first secondary copper bar 8 is provided with a magnetic ring 20, and one end of the first secondary copper bar 8 is inserted into the magnetic ring 20 and is inserted into the first mounting hole 16 to be fixedly connected with the bottom plate 1.
Separation seams are arranged between the first secondary copper bar 8 and the adjacent second secondary copper bar 9, and between any two adjacent second secondary copper bars 9. The first secondary copper bar 8 and the adjacent second secondary copper bar 9, and any two adjacent second secondary copper bars 9 are arranged at equal intervals.
Separation seams are arranged between the third secondary copper strip 10 and the adjacent fourth secondary copper strip 11, and between any two adjacent fourth secondary copper strips 11. The third secondary copper bar 10 and the adjacent fourth secondary copper bar 11, and any two adjacent fourth secondary copper bars 11 are arranged at equal intervals.
To sum up, the utility model provides a novel LLC resonance circuit transformer, through adopting flaky first secondary copper bar, second secondary copper bar, third secondary copper bar, fourth secondary copper bar to assemble, and set up first secondary copper bar, second secondary copper bar, third secondary copper bar, fourth secondary copper bar interval in the outside of first primary coil, second primary coil, be favorable to the whole heat dissipation of LLC resonance circuit transformer, improve its heat dissipation efficiency, heat conductivity; aiming at the transformer with the same specification, the LLC resonant circuit transformer can be made into higher power, can meet the requirements of miniaturization and high power of the transformer, and has better tin furnace effect and strong product consistency when being assembled on a power supply product, and the qualification rate reaches 98 percent; the quantity of the second secondary copper bar and the fourth secondary copper bar can be set according to the size of the transformer conversion voltage so as to meet the requirements of the transformer on different conversion voltages, achieve the aim of standardized production and improve the practicability of the LLC resonant circuit transformer.
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 (10)
1. A novel LLC resonant circuit transformer, characterized by, include: the transformer comprises a bottom 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 bar, a plurality of second secondary copper bars, a third secondary copper bar and a plurality of fourth secondary copper bars, wherein the first framework and the second framework are arranged on the upper side of the bottom 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, the second lug and the fourth lug are respectively inserted into the second framework from two ends of the second framework, and the first secondary copper strips and one sides of the second secondary copper strips, which face the first primary coil, are fixedly connected with the bottom plate; and one side of the third secondary copper bar and one side of the fourth secondary copper bars, which face the second primary coil, are fixedly connected with the bottom plate.
2. The novel LLC resonant circuit transformer of 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.
3. The LLC resonant circuit transformer of claim 1, wherein said bottom plate is an L-shaped bottom plate, and said bottom plate is provided with three first mounting holes, a plurality of second mounting holes, two third mounting holes, and a plurality of fourth mounting holes.
4. The novel LLC resonant circuit transformer of claim 3, wherein said first secondary copper bar, second secondary copper bar, third secondary copper bar, fourth secondary copper bar are mounted on said bottom plate through said first mounting hole, second mounting hole, third mounting hole, fourth mounting hole respectively.
5. The LLC resonant circuit transformer of claim 3, wherein a magnetic ring is disposed on one side of said first secondary copper bar, and one end of said first secondary copper bar is inserted into said magnetic ring and inserted into said first mounting hole to be fixedly connected with said bottom plate.
6. The novel LLC resonant circuit transformer of claim 3, wherein the number of said second secondary copper bars and said fourth secondary copper bars is one, and the number of said second mounting holes and said fourth mounting holes is two.
7. The novel LLC resonant circuit transformer of claim 1, wherein separation seams are provided between said first secondary copper bar and its adjacent second secondary copper bar, and between any two adjacent second secondary copper bars.
8. The novel LLC resonant circuit transformer of claim 7, wherein said first secondary copper bar and its adjacent second secondary copper bar, and any two adjacent second secondary copper bars are equally spaced.
9. The novel LLC resonant circuit transformer of claim 1, wherein separation seams are provided between said third secondary copper bar and its adjacent fourth secondary copper bar, and between any two adjacent fourth secondary copper bars.
10. The novel LLC resonant circuit transformer of claim 9, wherein said third secondary copper bar is equally spaced from its adjacent fourth secondary copper bar, and between any two adjacent fourth secondary copper bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020339082.3U CN211350330U (en) | 2020-03-17 | 2020-03-17 | Novel LLC resonant circuit transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020339082.3U CN211350330U (en) | 2020-03-17 | 2020-03-17 | Novel LLC resonant circuit transformer |
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| Publication Number | Publication Date |
|---|---|
| CN211350330U true CN211350330U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020339082.3U Active CN211350330U (en) | 2020-03-17 | 2020-03-17 | Novel LLC resonant circuit transformer |
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|---|---|
| CN (1) | CN211350330U (en) |
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2020
- 2020-03-17 CN CN202020339082.3U patent/CN211350330U/en active Active
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