CN214336542U - High-frequency magnetic assembly - Google Patents
High-frequency magnetic assembly Download PDFInfo
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- CN214336542U CN214336542U CN202022728567.4U CN202022728567U CN214336542U CN 214336542 U CN214336542 U CN 214336542U CN 202022728567 U CN202022728567 U CN 202022728567U CN 214336542 U CN214336542 U CN 214336542U
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Abstract
The utility model discloses a, a high frequency magnetic assembly, including aluminum alloy casing, terminal and casting glue, its characterized in that still includes magnetic assembly, magnetic assembly comprises transformer and output filter inductor, the transformer with output filter inductor installs side by side in the inside cavity of aluminum alloy casing, the transformer includes transformer input winding, the first output winding of transformer and transformer second output winding, and output filter inductor includes the inductor winding, the terminal sets up on aluminum alloy casing's the side, transformer input winding the first output winding of transformer second output winding the inductor winding links to each other with the terminal respectively. Finally, the purposes of reducing the weight of the product and reducing the assembly time and synchronously improving the power density of the product are achieved.
Description
Technical Field
The utility model relates to a power electronic equipment field, in particular to high frequency magnetic component.
Background
In full-bridge and half-bridge circuits of high frequency power systems, two magnetic components, a transformer and an output filter inductor, are often used. In the past product structure, the transformer and the output filter inductor need to be respectively designed and installed and then connected through a cable, so that the product design work is complicated, the power density is low, and the assembly consumption time is large.
At present, a novel product is urgently needed to be developed, a transformer and an output filter inductor are integrated, synchronous design and installation are achieved, and the working efficiency of the product is improved.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:
a high-frequency magnetic assembly comprises an aluminum alloy shell, terminals, pouring sealant and a magnetic assembly, wherein the magnetic assembly consists of a transformer and an output filter inductor, the transformer and the output filter inductor are arranged in a cavity inside the aluminum alloy shell side by side, the transformer comprises a transformer input winding, a transformer first output winding and a transformer second output winding, the output filter inductor comprises an inductor winding, the terminals are arranged on the side face of the aluminum alloy shell, the terminals consist of a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal and a seventh terminal, the transformer input winding is respectively connected with the first terminal and the second terminal, the transformer first output winding is respectively connected with the third terminal and the fourth terminal, the transformer second output winding is respectively connected with the fifth terminal and the sixth terminal, the inductor winding is connected to the seventh terminal and the eighth terminal, respectively.
In a preferred embodiment of the present invention, the third terminal and the fifth terminal are short-circuited, and the fourth terminal and the sixth terminal are short-circuited, so that the magnetic assembly can operate in a parallel state.
In a preferred embodiment of the present invention, the fourth terminal and the fifth terminal are short-circuited, and the third terminal and the sixth terminal are short-circuited, so that the magnetic assembly can operate in a series state.
In a preferred embodiment of the present invention, the transformer input, the first output winding of the transformer, the second output winding of the transformer and the filter inductor winding are made of copper, aluminum or copper clad aluminum, and the winding cross-sectional shape thereof includes a circular shape, an oval shape or a rectangular shape with a chamfer.
In a preferred embodiment of the present invention, the heat sink is installed at the bottom of the aluminum alloy casing, and a heat conductive silicone grease is further disposed between the heat sink and the aluminum alloy casing.
In a preferred embodiment of the present invention, the heat conductivity coefficient of the potting adhesive is greater than 0.8W/m ° K, and the material is epoxy resin.
In a preferred embodiment of the present invention, the first terminal, the second terminal, the seventh terminal, the third terminal, the fourth terminal, the fifth terminal, the sixth terminal and the eighth terminal are respectively disposed on two opposite surfaces of the aluminum alloy housing, which are parallel to each other.
In a preferred embodiment of the present invention, the magnetic cores of the transformer and the output filter inductor are made of nanocrystalline, ferrite, amorphous, silicon steel sheet, and the shape of the magnetic core is UU-shaped.
The beneficial effects of the utility model reside in that:
the utility model provides a high frequency magnetic component through with transformer and output filter inductor set as an organic whole, synchronous design and installation. Finally, the purposes of reducing the weight of the product and reducing the assembly time and synchronously improving the power density of the product are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a plan view of the present invention.
Fig. 2 is an electrical schematic diagram of the present invention.
Fig. 3 is a perspective view of the present invention.
Detailed Description
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
A high-frequency magnetic assembly mainly comprises an aluminum alloy shell 1, a terminal 2, a transformer 3, an output filter inductor 4 and pouring sealant 5.
The magnetic cores of the transformer 3 and the output filter inductor 4 are made of nanocrystalline, ferrite, amorphous and silicon steel sheets, and the shape of the magnetic core is UU-shaped.
Referring to fig. 1 and 3, a transformer 3 and an output filter inductor 4 are horizontally installed in parallel in the cavity of an aluminum alloy housing 1. A plurality of terminals 2 are arranged on two opposite side surfaces of the aluminum alloy shell 1, the terminals 2 are cylindrical and made of copper, and insulating sheaths are further arranged on the surfaces of the terminals.
Referring to fig. 1 and 2 in combination, the transformer 3 has a single input winding connected to the first terminal 21 and the second terminal 22 by lead wires, and two output windings connected to the third terminal 23, the fourth terminal 24, the fifth terminal 25 and the sixth terminal 26 by lead wires. The windings inside the output filter inductor 4 are connected by leads to a seventh terminal 27 and an eighth terminal 28. The winding is made of copper, aluminum or copper-clad aluminum, and the cross section of the winding can be round or oval (flat) according to specific requirements. When the high-frequency magnetic assembly is installed in the full-bridge circuit, the two output windings of the transformer 3 are set to be in a parallel connection state, and the third terminal 23 and the fifth terminal 25 are in short circuit, and the fourth terminal 24 and the sixth terminal 26 are in short circuit. When the high-frequency magnetic assembly is installed in a half-bridge circuit, the two output windings of the transformer 3 are set to be in a series state, i.e., the fourth terminal 24 and the fifth terminal 25 are short-circuited, and the third terminal 23 and the sixth terminal 26 are short-circuited.
After the terminal 2 and the transformer 3 are installed in the aluminum alloy shell 1, pouring sealant 5 needs to be injected into the cavity of the aluminum alloy shell 1, the heat conductivity coefficient of the pouring sealant 5 is larger than 0.8W/(m DEG K), and the material is epoxy resin with high strength and good weather resistance.
In order to solve the heat dissipation problem of the product, the bottom of the aluminum alloy shell 1 is also provided with a radiator, and heat conduction silicone grease is coated between the aluminum alloy shell and the radiator so as to conduct heat.
Through above-mentioned technical scheme with transformer and output filter inductor set formula design as an organic whole and manufacturing assembly, can make high frequency magnetic component adaptation full-bridge and the use of two kinds of circuits of half-bridge simultaneously, alleviate part weight more than 15% in step, promote power density more than 20%, reduced 50% fixed screw quantity and 20% connection structure on prior art's basis for reduce when assembling and reduced more than 50%.
Claims (8)
1. A high-frequency magnetic assembly comprises an aluminum alloy shell, terminals and pouring sealant, and is characterized by further comprising a magnetic assembly, wherein the magnetic assembly consists of a transformer and an output filter inductor, the transformer and the output filter inductor are arranged in a cavity inside the aluminum alloy shell side by side, the transformer comprises a transformer input winding, a transformer first output winding and a transformer second output winding, the output filter inductor comprises an inductor winding, the terminals are arranged on the side face of the aluminum alloy shell, the terminals consist of a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal and a seventh terminal, the transformer input winding is respectively connected with the first terminal and the second terminal, the transformer first output winding is respectively connected with the third terminal and the fourth terminal, the transformer second output winding is connected to the fifth terminal and the sixth terminal, respectively, and the inductor winding is connected to the seventh terminal and the eighth terminal, respectively.
2. A high frequency magnetic assembly according to claim 1, wherein said third terminal and said fifth terminal are shorted and said fourth terminal and said sixth terminal are shorted so that the magnetic assembly can operate in parallel.
3. A high frequency magnetic assembly as claimed in claim 1, wherein said fourth terminal and said fifth terminal are shorted and said third terminal and said sixth terminal are shorted so that the magnetic assembly can operate in series.
4. A high frequency magnetic assembly according to claim 1, wherein said transformer input, said transformer first output winding, said transformer second output winding and said filter inductor winding are made of copper, aluminum or copper clad aluminum, and a winding cross-sectional shape thereof includes a circular shape, an oval shape or a rectangular shape with a chamfer.
5. A high frequency magnetic assembly according to claim 1, 2 or 3, wherein a heat sink is mounted to the bottom of said aluminum alloy case, and a heat conductive silicone grease is further provided between said heat sink and said aluminum alloy case.
6. A high frequency magnetic assembly as claimed in claim 1, 2 or 3, wherein said potting compound has a thermal conductivity greater than 0.8W/m ° K and is made of an epoxy resin.
7. A high-frequency magnetic assembly according to claim 1, 2 or 3, wherein said first terminal, said second terminal and said seventh terminal and said third terminal, said fourth terminal, said fifth terminal, said sixth terminal and said eighth terminal are respectively provided on two mutually parallel opposite surfaces of said aluminum alloy case.
8. A high frequency magnetic assembly as claimed in claim 1, 2 or 3, wherein said transformer and output filter inductor cores are made of nanocrystalline, ferrite, amorphous or silicon steel sheets, and the cores are UU-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022728567.4U CN214336542U (en) | 2020-11-23 | 2020-11-23 | High-frequency magnetic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022728567.4U CN214336542U (en) | 2020-11-23 | 2020-11-23 | High-frequency magnetic assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214336542U true CN214336542U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022728567.4U Active CN214336542U (en) | 2020-11-23 | 2020-11-23 | High-frequency magnetic assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214336542U (en) |
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2020
- 2020-11-23 CN CN202022728567.4U patent/CN214336542U/en active Active
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