CN208954762U - A kind of LLC transformer - Google Patents
A kind of LLC transformer Download PDFInfo
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- CN208954762U CN208954762U CN201821714767.0U CN201821714767U CN208954762U CN 208954762 U CN208954762 U CN 208954762U CN 201821714767 U CN201821714767 U CN 201821714767U CN 208954762 U CN208954762 U CN 208954762U
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Abstract
The utility model is suitable for transformer technology field.There is provided a kind of LLC transformer, comprising: the first magnetic core；It is covered on the first magnetic core and forms the second magnetic core of an accommodating chamber with the first magnetic core；Coil rack in accommodating chamber；It is set around the primary side winding and vice-side winding of coil rack simultaneously；And the magnetic sheet between primary side winding and vice-side winding, magnetic sheet include the first magnetic substance and the second magnetic substance of split settings, the first magnetic substance and the second magnetic substance are arranged on coil rack respectively and form magnetic sheet.LLC transformer provided by the utility model between primary side winding and vice-side winding by being arranged magnetic sheet, the size of the leakage inductance of transformer is adjusted by magnetic sheet, leakage inductance adjusted is as resonant inductance, to cooperate transformer to work, there is no need to resonant inductance winding is additionally separately provided, so as to save the occupied space of resonant inductance winding, the overall dimensions of LLC transformer are reduced, the miniaturization of LLC transformer is conducive to.
Description
Technical field
The utility model belongs to transformer technology field more particularly to a kind of LLC transformer.
Background technique
In recent years, flourishing with electric car industry, vehicle electronic device is in miniaturization, integrated, high power
Densification trend.Especially Vehicular charger, as the electric energy Switching Core component of entire electric car, urgent need is small-sized
Change, Highgrade integration, and the volume size of the power supply LLC transformer of Vehicular charger directly influences the entirety of Vehicular charger
Volume.
In the prior art, the LLC transformer in Vehicular charger generallys use a resonant inductance winding and a main transformer
The mode of depressor combination works, and resonant inductance winding and main transformer are usually independently arranged, and occupied space is big, space utilization rate
It is low.
Utility model content
The utility model provides a kind of LLC transformer, it is intended to which resonance need to be separately provided in the LLC transformer for solving the prior art
Inductor winding, it is big that there are occupied spaces, the low problem of space utilization rate.
The utility model is realized in this way a kind of LLC transformer, comprising:
First magnetic core；
It is covered on first magnetic core and forms the second magnetic core of an accommodating chamber with first magnetic core；
Coil rack in the accommodating chamber；
It is set around the primary side winding and vice-side winding of the coil rack simultaneously；And
Magnetic sheet between the primary side winding and the vice-side winding, the magnetic sheet include the first magnetic of split settings
Property body and the second magnetic substance, first magnetic substance and second magnetic substance are arranged on the coil rack respectively and form
The magnetic sheet.
Preferably, first magnetic substance and second magnetic substance, which are respectively equipped with, has the card slot being open, and described first
Magnetic substance and second magnetic substance are arranged on the coil rack by the card slot.
Preferably, the side of the coil rack convexes to form spaced first partition and second partition, and described
One partition and the second partition interval form a mounting groove, and first magnetic substance and second magnetic substance are respectively arranged in
In the mounting groove.
Preferably, one end of the coil rack is connected with and spaced first limit plate of the first partition, institute
It states and forms the first winding section between the first limit plate and the first partition, the primary side winding is set around first coiling
Portion；
The other end of the coil rack be connected with spaced second limit plate of the second partition, described second
The second winding section is formed between limit plate and the second partition, the vice-side winding is set around second winding section.
Preferably, first magnetic core is equipped with the first magnetic pole for being arranged to second magnetic core direction protrusion, and described second
Magnetic core is equipped with the second magnetic pole for being arranged to first magnetic core direction protrusion and abutting with first magnetic pole, the coil rack
Through there is through-hole, first magnetic pole and second magnetic pole pass through the through-hole.
Preferably, first magnetic core includes the first bottom wall and by the first bottom wall opposite sides vertically extending the
One side wall, first magnetic pole are convexed to form from first bottom wall to second magnetic core direction；
Second magnetic core includes the second bottom wall and by the vertically extending second sidewall of the second bottom wall opposite sides,
Second magnetic pole is convexed to form from second bottom wall to first magnetic core direction.
Preferably, the opposite end of first limit plate, which is respectively perpendicular, extends to form two first end walls, and two described first
End wall and first limit plate form the first accommodation groove, and first bottom wall of first magnetic core, which is placed in described first, to be held
Set slot；
The opposite end of second limit plate, which is respectively perpendicular, extends to form two second end walls, two second end walls and institute
It states the second limit plate and forms the second accommodation groove, second bottom wall of second magnetic core is placed in second accommodation groove.
Preferably, first magnetic substance and second magnetic substance are made of nickel zinc material.
LLC transformer provided by the utility model passes through magnetic by the way that magnetic sheet is arranged between primary side winding and vice-side winding
Piece adjusts the size of the leakage inductance of transformer, and leakage inductance adjusted is as resonant inductance, to cooperate transformer to work, therefore nothing
Resonant inductance winding need to additionally be separately provided, so as to save the occupied space of resonant inductance winding, space utilization rate is high, into
And the overall dimensions of LLC transformer are reduced, be conducive to the miniaturization of LLC transformer.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of the utility model LLC transformer；
Fig. 2 is the stereochemical structure exploded view of the utility model LLC transformer；
Fig. 3 is the cross-sectional view of the utility model LLC transformer；
Fig. 4 is the three-dimensional structure diagram of the utility model LLC coils in transformers skeleton；
Fig. 5 is the stereochemical structure exploded view of the first magnetic core and the second magnetic core in the utility model LLC transformer.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
LLC transformer provided by the utility model passes through magnetic by the way that magnetic sheet is arranged between primary side winding and vice-side winding
Piece adjusts the size of the leakage inductance of transformer, and leakage inductance adjusted is as resonant inductance, to cooperate transformer to work, therefore nothing
Resonant inductance winding need to additionally be separately provided, so as to save the occupied space of resonant inductance winding, space utilization rate is high, into
And the overall dimensions of LLC transformer are reduced, be conducive to the miniaturization of LLC transformer.
Please refer to Fig. 1-Fig. 3, wherein Fig. 1 is the three-dimensional structure diagram of the utility model LLC transformer；Fig. 2 is that this is practical
The stereochemical structure exploded view of novel LLC transformer；Fig. 3 is the cross-sectional view of the utility model LLC transformer.The LLC transformer packet
It includes: the first magnetic core 1；It is covered on first magnetic core 1 and forms the second magnetic core 2 of an accommodating chamber with first magnetic core 1；It is set to
Coil rack 3 in the accommodating chamber；It is set around the primary side winding 4 and vice-side winding 5 of the coil rack 3 simultaneously；And it sets
Magnetic sheet 6 between the primary side winding 4 and the vice-side winding 5, the magnetic sheet 6 include the first magnetic substance of split settings
61 and second magnetic substance 62, first magnetic substance 61 and second magnetic substance 62 are arranged in respectively on the coil rack 3
And form the magnetic sheet 6.
It is former by the way that the magnetic sheet 6 is arranged between primary side winding 4 and the vice-side winding 5 in the utility model embodiment
Side winding 4, the vice-side winding 5, the first magnetic core 1 and the second magnetic core 2 form main transformer, adjust main transformer pressure by magnetic sheet 6
The size of the leakage inductance of device.After magnetic sheet 6 are added, the magnetic loop of primary side winding 4 and one semi-closed of formation of magnetic sheet 6, and secondary side
Winding 5 and magnetic sheet 6 form the magnetic loop of a semi-closed, 2 shape of the first magnetic core 1 and the second magnetic core when compared to without increasing magnetic sheet 6
At the length of magnetic path reduce half, the length of magnetic path shortens, and the inductance of primary side winding 4 and vice-side winding 5 increases, to increase original
The leakage inductance of side winding 4 and vice-side winding 5, leakage inductance adjusted can be used as resonant inductance, to cooperate transformer to work, therefore
It is not necessary that resonant inductance winding is additionally separately provided, so as to save the occupied space of resonant inductance winding, space utilization rate is high,
And then reduce the overall dimensions of the LLC transformer.When without that when increasing leakage inductance, then magnetic sheet 6 can be removed, and pass through change
Wire circle or primary side winding 4 and the spacing of vice-side winding 5 are to adjust leakage inductance.
It is magnetic by the way that the magnetic sheet 6 is arranged to the first seperated magnetic substance 61 and second in the utility model embodiment
First magnetic substance 61 and second magnetic substance 62 are arranged in the coil rack when installing magnetic sheet 6 by body 62 respectively
On 3, facilitate the installation of the magnetic sheet 6.
As one embodiment of the utility model, first magnetic substance 61 and second magnetic substance 62 are set respectively
There are the card slot 611 with opening, first magnetic substance 61 and second magnetic substance 62 to be arranged in institute by the card slot 611
It states on coil rack 3.First magnetic substance 61 and second magnetic substance 62 pass through the card slot 611 and are directly arranged in institute
It states on coil rack 3, and is mutually spliced into the magnetic sheet 6, first magnetic substance 61 and second magnetic substance 62 install letter
It is single quick, facilitate the installation of magnetic sheet 6.
It is the three-dimensional structure diagram of the utility model LLC coils in transformers skeleton incorporated by reference to reference Fig. 4, Fig. 4.As this reality
With novel one embodiment, the side of the coil rack 3 convexes to form spaced first partition 31 and second partition
32, the first partition 31 and the interval of the second partition 32 form a mounting groove 33, first magnetic substance 61 and described the
Two magnetic substances 62 are respectively arranged in the mounting groove 33.By the way that the mounting groove 33 is arranged, mounting groove 33 is to the first magnetic substance
61 and second magnetic substance 62 play position-limiting action, guarantee that the first magnetic substance 61 and second magnetic substance 62 stablize installation
Between primary side winding 4 and the vice-side winding 5.
As one embodiment of the utility model, one end of the coil rack 3 is connected with and the first partition 31
Spaced first limit plate 34 forms the first winding section 35 between first limit plate 34 and the first partition 31,
The primary side winding 4 is set around first winding section 35；The other end of the coil rack 3 is connected with and the second partition
32 spaced second limit plates 36, form the second winding section between second limit plate 36 and the second partition 32
37, the vice-side winding 5 is set around second winding section 37.In practical application, by the primary side winding 4 around described first
Winding section 35 is wound, and the vice-side winding 5 is wound around second winding section 37.
It is the stereochemical structure of the first magnetic core and the second magnetic core in the utility model LLC transformer incorporated by reference to reference Fig. 5, Fig. 5
Exploded view.As one embodiment of the utility model, first magnetic core 1 is equipped with and sets to the 2 direction protrusion of the second magnetic core
The first magnetic pole 11 set, second magnetic core 2 be equipped with to the 1 direction protrusion of the first magnetic core be arranged and with first magnetic pole
The second magnetic pole 21 abutted, through there is through-hole 30, first magnetic pole 11 and second magnetic pole 21 pass through the coil rack 3
The through-hole 30.First magnetic pole 11 and the second magnetic pole 21 play magnet accumulating cap, are conducive to the output work for improving the LLC transformer
Rate.
As one embodiment of the utility model, first magnetic core 1 is including the first bottom wall 12 and by described first
The vertically extending the first side wall 13 of 12 opposite sides of bottom wall, first magnetic pole 11 is from first bottom wall 12 to described second
2 direction of magnetic core convexes to form；Second magnetic core 2 includes the second bottom wall 22 and vertical by 22 opposite sides of the second bottom wall
The second sidewall 23 of extension, second magnetic pole 2 are convexed to form from second bottom wall 22 to 1 direction of the first magnetic core.Its
In, the first bottom wall 12 of first magnetic core 1 and the second bottom wall 22 of second magnetic core 2 are in tabular, magnetic core surface area
Greatly, have good heat dissipation effect, can also in the surface finned of first magnetic core 1 and second magnetic core 2, or
Increase air-cooled mode to radiate, working efficiency can be made higher.
As one embodiment of the utility model, the opposite end of first limit plate 34, which is respectively perpendicular, to be extended to form
Two first end walls 38, two first end walls 38 form the first accommodation groove 39, first magnetic core 1 with first limit plate 34
First bottom wall 12 be placed in first accommodation groove 39；The opposite end of second limit plate 36 is respectively perpendicular extension
Forming two second end walls 40, two second end walls 39 and second limit plate 36 form the second accommodation groove 41, and described second
Second bottom wall 22 of magnetic core 2 is placed in second accommodation groove 41.By by first bottom of first magnetic core 1
Wall 12 is placed in first accommodation groove 39, and second bottom wall 22 of second magnetic core 2 is placed in second accommodating
Slot 41, to play fixed function to the first magnetic core 1 and the second magnetic core 2, fixed form is simple and convenient, and reduces the first magnetic core
2 and second magnetic core 2 occupied space.
As one embodiment of the utility model, first magnetic substance 61 and second magnetic substance 62 are by nickel
Zinc material is made.In addition to this, first magnetic substance 61 and second magnetic substance 62 can also have magnetism using other
Material be made.
LLC transformer provided by the utility model passes through magnetic by the way that magnetic sheet is arranged between primary side winding and vice-side winding
Piece adjusts the size of the leakage inductance of transformer, and leakage inductance adjusted is as resonant inductance, to cooperate transformer to work, therefore nothing
Resonant inductance winding need to additionally be separately provided, so as to save the occupied space of resonant inductance winding, space utilization rate is high, into
And the overall dimensions of LLC transformer are reduced, be conducive to the miniaturization of LLC transformer.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (8)
1. a kind of LLC transformer characterized by comprising
First magnetic core；
It is covered on first magnetic core and forms the second magnetic core of an accommodating chamber with first magnetic core；
Coil rack in the accommodating chamber；
It is set around the primary side winding and vice-side winding of the coil rack simultaneously；And
Magnetic sheet between the primary side winding and the vice-side winding, the magnetic sheet include the first magnetic substance of split settings
With the second magnetic substance, first magnetic substance and second magnetic substance are arranged on the coil rack respectively and described in forming
Magnetic sheet.
2. LLC transformer according to claim 1, which is characterized in that first magnetic substance and second magnetic substance
It is respectively equipped with the card slot with opening, first magnetic substance and second magnetic substance are arranged in the line by the card slot
On ring framework.
3. LLC transformer according to claim 1, which is characterized in that the side of the coil rack convexes to form interval
The first partition and second partition of setting, one mounting groove of the first partition and second partition interval formation, described first
Magnetic substance and second magnetic substance are respectively arranged in the mounting groove.
4. LLC transformer according to claim 3, which is characterized in that one end of the coil rack be connected with it is described
Spaced first limit plate of first partition, forms the first winding section between first limit plate and the first partition,
The primary side winding is set around first winding section；
The other end of the coil rack is connected with and spaced second limit plate of the second partition, second limit
The second winding section is formed between plate and the second partition, the vice-side winding is set around second winding section.
5. LLC transformer according to claim 4, which is characterized in that first magnetic core is equipped with to second magnetic core
First magnetic pole of direction protrusion setting, second magnetic core, which is equipped with, to be arranged and with described first to first magnetic core direction protrusion
The second magnetic pole that magnetic pole abuts, through there is through-hole, first magnetic pole and second magnetic pole pass through described the coil rack
Through-hole.
6. LLC transformer according to claim 5, which is characterized in that first magnetic core include the first bottom wall and by
The vertically extending the first side wall of first bottom wall opposite sides, first magnetic pole is from first bottom wall to second magnetic
Core direction convexes to form；
Second magnetic core is described including the second bottom wall and by the vertically extending second sidewall of the second bottom wall opposite sides
Second magnetic pole is convexed to form from second bottom wall to first magnetic core direction.
7. LLC transformer according to claim 6, which is characterized in that the opposite end of first limit plate hangs down respectively
Two first end walls are directly extended to form, two first end walls and first limit plate form the first accommodation groove, first magnetic
First bottom wall of core is placed in first accommodation groove；
The opposite end of second limit plate, which is respectively perpendicular, extends to form two second end walls, two second end walls and described the
Two limit plates form the second accommodation groove, and second bottom wall of second magnetic core is placed in second accommodation groove.
8. LLC transformer according to claim 1, which is characterized in that first magnetic substance and second magnetic substance
It is made of nickel zinc material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714767.0U CN208954762U (en) | 2018-10-22 | 2018-10-22 | A kind of LLC transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714767.0U CN208954762U (en) | 2018-10-22 | 2018-10-22 | A kind of LLC transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208954762U true CN208954762U (en) | 2019-06-07 |
Family
ID=66742438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821714767.0U Active CN208954762U (en) | 2018-10-22 | 2018-10-22 | A kind of LLC transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208954762U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690031A (en) * | 2019-10-16 | 2020-01-14 | 广东美的厨房电器制造有限公司 | Transformer framework, transformer and electric equipment |
| CN113380507A (en) * | 2021-05-21 | 2021-09-10 | 无锡蓝沛新材料科技股份有限公司 | Four-electrode integrally-formed inductor and preparation method thereof |
| CN113809904A (en) * | 2021-09-28 | 2021-12-17 | 天津大学 | Matrix transformer based on LLC resonant converter topology magnetic integration |
-
2018
- 2018-10-22 CN CN201821714767.0U patent/CN208954762U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690031A (en) * | 2019-10-16 | 2020-01-14 | 广东美的厨房电器制造有限公司 | Transformer framework, transformer and electric equipment |
| CN110690031B (en) * | 2019-10-16 | 2021-09-10 | 广东美的厨房电器制造有限公司 | Transformer framework, transformer and electric equipment |
| CN113380507A (en) * | 2021-05-21 | 2021-09-10 | 无锡蓝沛新材料科技股份有限公司 | Four-electrode integrally-formed inductor and preparation method thereof |
| CN113809904A (en) * | 2021-09-28 | 2021-12-17 | 天津大学 | Matrix transformer based on LLC resonant converter topology magnetic integration |
| CN113809904B (en) * | 2021-09-28 | 2024-03-29 | 天津大学 | Matrix transformer based on LLC resonant converter topology magnetic integration |
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