CN220796396U - Adjustable magnetic element for CLLC - Google Patents
Adjustable magnetic element for CLLC Download PDFInfo
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- CN220796396U CN220796396U CN202322416199.3U CN202322416199U CN220796396U CN 220796396 U CN220796396 U CN 220796396U CN 202322416199 U CN202322416199 U CN 202322416199U CN 220796396 U CN220796396 U CN 220796396U
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- coil
- magnetic element
- aluminum shell
- cllc
- magnetic
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- 239000003292 glue Substances 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- -1 acrylic ester Chemical class 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000000110 cooling liquid Substances 0.000 abstract description 4
- 238000005538 encapsulation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses an adjustable magnetic element for CLLC, which comprises an aluminum shell, wherein the aluminum shell is internally provided with a magnetic element, the aluminum shell is internally provided with heat-conducting glue, the magnetic element is provided with a first coil, and the magnetic element is provided with a second coil; the limiting parts are provided with two groups, and the two groups of limiting parts are respectively and fixedly arranged at two ends of the aluminum shell. The utility model has the advantages that the product can form the change of the leakage inductance value through the magnetic element, the first coil and the second coil, the leakage inductance value of the product is used as the resonant inductance, the conversion of the resonant inductance and high and low voltage can be realized through only one magnetic element, the volume of the product can be greatly reduced, the power density can be improved, in addition, the whole magnetic element can be directly attached to the cooling liquid level through the encapsulation mode of encapsulating the heat-conducting glue in the aluminum shell, the more stable heat dissipation effect can be improved, the larger product capacity can be achieved through the smaller volume, and meanwhile, the encapsulation structure is more beneficial to the assembly of the finished product.
Description
Technical Field
The utility model belongs to the technical field of CLLC, and particularly relates to an adjustable magnetic element for CLLC.
Background
The CLLC resonance type bidirectional DC/DC converter (called CLLC resonance converter for short) is evolved by adding an extra resonance capacitor from the secondary side of the LLC resonance converter, not only well inherits the advantage that the LLC resonance converter can realize soft switching, but also has bidirectional power transmission capability and voltage lifting capability, can realize electric isolation, and has high efficiency and more advantages.
However, the prior art has some problems: the design mode of the magnetic core device in the CLLC converter circuit is formed by connecting two different resonant inductors and a transformer, and the integral PCB typesetting layout needs to be considered when products are matched, so that the defects of large space required to be accommodated, complicated PCB arrangement, heavy weight, high cost, low power density and the like are caused.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model aims to provide an adjustable magnetic element for CLLC, the change of leakage inductance value is formed by the magnetic element, the first coil and the second coil, the leakage inductance value of the product is used as resonant inductance, so that the conversion of resonant inductance and high and low voltage can be realized by only one magnetic element, the volume of the product can be greatly reduced, the power density can be improved, in addition, the whole magnetic element can be directly attached to a cooling liquid level by a packaging mode of filling and sealing heat-conducting glue in an aluminum shell, the more stable heat dissipation effect can be increased, the smaller volume can achieve larger product capacity, and meanwhile, the packaging structure is more beneficial to the assembly of a finished product.
The utility model is realized in that an adjustable magnetic element for CLLC comprises:
the aluminum shell is internally provided with a magnetic element, the aluminum shell is internally provided with heat-conducting glue, the magnetic element is provided with a first coil, and the magnetic element is provided with a second coil;
the limiting parts are provided with two groups, the two groups of limiting parts are respectively and fixedly arranged at two ends of the aluminum shell, limiting holes are formed in the upper surfaces of the protruding ends of the limiting parts, one end of each first coil penetrates through the limiting hole of one group of limiting parts, and one end of each second coil penetrates through the limiting hole of the other group of limiting parts.
Optionally, the magnetic element includes a magnetic core and a bobbin, the magnetic cores are provided with two groups, and the protrusions of the two groups of magnetic cores are respectively embedded into openings at two ends of the bobbin, so that the two groups of magnetic cores are combined with each other.
Optionally, the first coil is winding type and is arranged at one end of the surface of the winding drum, and the second coil is winding type and is arranged at the other end of the surface of the winding drum.
Optionally, a coupling magnetic sheet is fixedly sleeved in the middle of the surface of the winding drum, and the coupling magnetic sheet is positioned between the first coil and the second coil.
Optionally, the surfaces of the first coil and the second coil are coated with an insulating layer, and the magnetic core is composed of an iron oxide mixture.
Optionally, the heat-conducting glue is made of acrylic ester, polyurethane and other materials, and the aluminum shell is made of aluminum alloy materials.
Compared with the prior art, the utility model has the beneficial effects that:
1. the product forms the change of leakage inductance value through magnetic element, first coil and second coil to the leakage inductance value of product is regarded as resonant inductance, so only can realize resonant inductance volume and high low voltage's conversion by a magnetic element, so very big reduction product volume and improvement power density, in addition through the encapsulation mode of embedment heat-conducting glue in the aluminium shell, make whole magnetic element can directly paste in the cooling liquid level, can increase more stable radiating effect, with the volume of less reaching bigger product capacity, packaging structure is more favorable to the finished product equipment simultaneously.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the structure provided by the present utility model;
FIG. 2 is a schematic view of a stop member provided by the present utility model;
FIG. 3 is a schematic illustration of a magnetic core provided by the present utility model;
fig. 4 is a schematic diagram of an inductor circuit provided by the present utility model.
In the figure: 1. an aluminum housing; 2. a magnetic element; 3. a first coil; 4. a second coil; 5. a limiting piece; 201. a magnetic core; 202. a bobbin; 203. and coupling magnetic sheets.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, an adjustable magnetic element for CLLC according to an embodiment of the present utility model includes,
the aluminum shell 1, the magnetic element 2 is arranged in the aluminum shell 1, the heat-conducting glue is arranged in the aluminum shell 1, the magnetic element 2 is provided with the first coil 3, and the magnetic element 2 is provided with the second coil 4; the limiting pieces 5 are arranged in two groups, the two groups of limiting pieces 5 are respectively and fixedly arranged at two ends of the aluminum shell 1, limiting holes are formed in the upper surfaces of the protruding ends of the two groups of limiting pieces 5, one end of the first coil 3 penetrates through the limiting holes of one group of limiting pieces 5, and one end of the second coil 4 penetrates through the limiting holes of the other group of limiting pieces 5.
The product forms the change of leakage inductance value through magnetic element 2, first coil 3 and second coil 4 to the leakage inductance value of product is regarded as resonant inductance, so can realize resonant inductance volume and high low voltage's conversion by only a magnetic element 2, so can very big reduction product volume and improve power density, in addition through the encapsulation mode of embedment heat-conducting glue in aluminium shell 1, make whole magnetic element 2 can directly paste in the cooling liquid level, can increase more stable radiating effect, reach bigger product capacity with less volume, packaging structure is more favorable to the finished product equipment simultaneously, in addition inserts in the spacing downthehole of locating part 5 through first coil 3 and second coil 4 one end, thereby prevent the effect of displacement.
The magnetic element 2 includes a core 201 and a bobbin 202, the core 201 is provided in two groups, and the protruding portions of the two groups of cores 201 are respectively fitted into openings at both ends of the bobbin 202, so that the two groups of cores 201 are combined with each other.
The protruding parts of the two groups of magnetic cores 201 are respectively embedded into the openings at the two ends of the winding tube 202, so that the effect of mutually combining is achieved.
The first coil 3 is wound around one end of the surface of the bobbin 202, and the second coil 4 is wound around the other end of the surface of the bobbin 202.
The change of the leakage inductance value is formed by the distance between the first coil 3 and the second coil 4 on the surface of the bobbin 202, and the leakage inductance value of the product is used as a resonance inductance; meanwhile, the turn ratio of the first coil 3 forms the voltage change required, so that the resonance inductance and the conversion of high and low voltages can be realized by only one magnetic element 2, and the product volume can be greatly reduced and the power density can be improved.
The middle part of the surface of the bobbin 202 is fixedly sleeved with a coupling magnetic sheet 203, and the coupling magnetic sheet 203 is positioned between the first coil 3 and the second coil 4.
The leakage inductance of the product can be adjusted through the coupling magnetic sheet 203 between the first coil 3 and the second coil 4; to achieve the desired resonance inductance value.
The first coil 3 and the second coil 4 are coated with an insulating layer on their surfaces, and the magnetic core 201 is composed of an iron oxide mixture.
By the magnetic core 201 being composed of the iron oxide mixture, the first coil 3 and the second coil 4 are protected, and the insulating performance and the corrosion resistance of the first coil 3 and the second coil 4 can be improved.
The heat-conducting glue is made of acrylic ester, polyurethane and other materials, and the aluminum shell 1 is made of aluminum alloy materials.
The heat-conducting glue is made of acrylic ester, polyurethane and other materials, so that the heat energy can be emitted.
Referring to FIG. 4, in the power supply mode, the product forms 1-2 end electricity and 3-4 end short circuit, so that leakage inductance of 1-2 ends is fed back to reach resonance inductance of a circuit Lr 1; when the product is in a power generation mode, the 3-4 end is connected with electricity, the 1-2 end is in short circuit, so that leakage inductance of the 3-4 end is fed back, the resonance inductance of the circuit Lr2 is achieved, and the resonance inductance is achieved to say that the transformer is integrated.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An adjustable magnetic element for CLLC, characterized in that: comprising the following steps:
the aluminum shell (1), a magnetic element (2) is arranged in the aluminum shell (1), heat-conducting glue is arranged in the aluminum shell (1), a first coil (3) is arranged on the magnetic element (2), and a second coil (4) is arranged on the magnetic element (2);
the limiting parts (5), the limiting parts (5) are provided with two groups, the two groups of limiting parts (5) are respectively and fixedly installed at two ends of the aluminum shell (1), limiting holes are formed in the upper surfaces of the protruding ends of the limiting parts (5), one end of the first coil (3) penetrates through the limiting holes of one group of limiting parts (5), and one end of the second coil (4) penetrates through the limiting holes of the other group of limiting parts (5).
2. An adjustable magnetic component for CLLC as claimed in claim 1, wherein: the magnetic element (2) comprises magnetic cores (201) and bobbins (202), wherein two groups of magnetic cores (201) are arranged, protruding parts of the two groups of magnetic cores (201) are respectively embedded into openings at two ends of the bobbins (202), and accordingly the two groups of magnetic cores (201) are combined with each other.
3. An adjustable magnetic component for CLLC as claimed in claim 1, wherein: the first coil (3) is arranged at one end of the surface of the winding tube (202) in a winding mode, and the second coil (4) is arranged at the other end of the surface of the winding tube (202) in a winding mode.
4. An adjustable magnetic component for CLLC as claimed in claim 2, wherein: the middle part of the surface of the winding reel (202) is fixedly sleeved with a coupling magnetic sheet (203), and the coupling magnetic sheet (203) is positioned between the first coil (3) and the second coil (4).
5. An adjustable magnetic component for CLLC as claimed in claim 2, wherein: the surfaces of the first coil (3) and the second coil (4) are coated with insulating layers, and the magnetic core (201) is composed of an iron oxide mixture.
6. An adjustable magnetic component for CLLC as claimed in claim 1, wherein: the heat-conducting glue is made of acrylic ester and polyurethane materials, and the aluminum shell (1) is made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322416199.3U CN220796396U (en) | 2023-09-06 | 2023-09-06 | Adjustable magnetic element for CLLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322416199.3U CN220796396U (en) | 2023-09-06 | 2023-09-06 | Adjustable magnetic element for CLLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220796396U true CN220796396U (en) | 2024-04-16 |
Family
ID=90629557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322416199.3U Active CN220796396U (en) | 2023-09-06 | 2023-09-06 | Adjustable magnetic element for CLLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220796396U (en) |
-
2023
- 2023-09-06 CN CN202322416199.3U patent/CN220796396U/en active Active
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