CN209447638U - A kind of low-temperature-rise flat surface transformer - Google Patents
A kind of low-temperature-rise flat surface transformer Download PDFInfo
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- CN209447638U CN209447638U CN201920356437.7U CN201920356437U CN209447638U CN 209447638 U CN209447638 U CN 209447638U CN 201920356437 U CN201920356437 U CN 201920356437U CN 209447638 U CN209447638 U CN 209447638U
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Abstract
The utility model discloses a kind of low-temperature-rise flat surface transformers, it is characterized in that: including PCB winding and magnetic core.PCB winding is provided with magnetic core through-hole.Magnetic core includes shell and several magnetic chips, and shell is provided with magnetic chip accommodation groove.Several magnetic chips are set in magnetic chip accommodation groove.The shapes and sizes of the opposite two side walls of magnetic chip accommodation groove are identical to the shapes and sizes of magnetic chip.Magnetic core is matched with PCB winding and is plugged in magnetic core through-hole.The cooling fin that several shapes and sizes are identical to the shapes and sizes of magnetic chip is additionally provided in magnetic chip accommodation groove, cooling fin is distributed between several magnetic chips.The outer wall of shell is additionally provided with several heat bulges.Shell is provided with magnetic chip accommodation groove.The cooling fin being distributed between several magnetic chips is additionally provided in magnetic chip accommodation groove, so that the heat inside magnetic core is quickly conducted by cooling fin to hull outside.Meanwhile the outer wall of shell is additionally provided with heat bulge, accelerates scattering and disappearing for heat.
Description
Technical field
This practical new shape belongs to the technical field of flat surface transformer, specifically, being related to a kind of low-temperature-rise flat surface transformer.
Background technique
Transformer is a key element in power supply.Traditional transformer is usually by FERRITE CORE and copper coil structure
At bulky and be easy to produce electromagnetic interference.Flat surface transformer can efficiently solve volume and high frequency problem.
Flat surface transformer maximum difference compared with traditional transformer is iron core and coil windings.Flat surface transformer is adopted
With the E type, RM type or ring-like FERRITE CORE of small size, usually it is made of high-frequency power ferrite material, has in high frequency
Lower core loss；Using multilayer board repeatedly around forming, winding or copper sheet change on the high-frequency core of plane winding
Constitute the magnetic loop of transformer.Flat surface transformer is in use, and magnetic core can generate heat.There are temperature rises for the flat surface transformer of the prior art
High disadvantage.
Utility model content
For deficiency above-mentioned in the prior art, this practical new shape provides a kind of low-temperature-rise flat surface transformer, can be quick
Heat dissipation, so that the temperature rise of flat surface transformer is lower.
In order to achieve the above object, the solution that this practical new shape uses is: a kind of low-temperature-rise flat surface transformer, special
Sign is: including PCB winding and magnetic core；
The PCB winding is provided with magnetic core through-hole；
The magnetic core includes shell and several magnetic chips, and the shell is provided with magnetic chip accommodation groove；Several magnetic cores
Piece is set in the magnetic chip accommodation groove；The shapes and sizes of the opposite two side walls of the magnetic chip accommodation groove are identical to
The shapes and sizes of the magnetic chip；The magnetic core is matched with the PCB winding and is plugged in the magnetic core through-hole；
The shapes and sizes that several shapes and sizes are identical to the magnetic chip are additionally provided in the magnetic chip accommodation groove
Cooling fin, the cooling fin is distributed between several magnetic chips；It is convex that the outer wall of the shell is additionally provided with several heat dissipations
It rises.
Further, the magnetic core is provided with two groups, and the magnetic chip is in E type, and two magnetic cores are oppositely arranged simultaneously
It is matched with the PCB winding.
Further, the both ends of the shell of magnetic core described in two groups are provided with connecting hole；The connecting hole of two shells
It corresponds and fixation is bolted.
Further, the shell and the cooling fin are made of copper.
Further, heat conductive silica gel is laid between the magnetic chip and the shell.
The beneficial effect of this practical new shape is: shell is provided with magnetic chip accommodation groove.It is additionally provided in magnetic chip accommodation groove
Several shapes and sizes are identical to the cooling fin of the shapes and sizes of magnetic chip.Several magnetic chips are set to magnetic chip accommodation groove
Afterwards, cooling fin is distributed between several magnetic chips.This set make the heat inside magnetic core by cooling fin quickly conduct to
Hull outside facilitates heat to distribute.Meanwhile the outer wall of shell is additionally provided with several heat bulges, increases housing outer surface
Heat dissipation area has further speeded up scattering and disappearing for heat, so that the temperature rise of flat surface transformer reduces.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model.
Fig. 2 is the schematic diagram of PCB winding.
Fig. 3 is the schematic diagram of shell.
Fig. 4 is the schematic diagram that shell and magnetic chip combine.
In attached drawing: 100-PCB winding, 110- magnetic core through-hole, 210- shell, 211- magnetic chip accommodation groove, 212- cooling fin,
213- heat bulge, 214- connecting hole, 220- magnetic chip.
Specific embodiment
The utility model is further described below in conjunction with attached drawing:
The present embodiment provides a kind of low-temperature-rise flat surface transformers, as Figure 1-Figure 4, including PCB winding 100 and magnetic core.
PCB winding 100 is provided with magnetic core through-hole 110.Magnetic core is provided with two groups, and magnetic core includes shell 210 and several magnetic cores
Piece 220, shell 210 are provided with magnetic chip accommodation groove 211.Several magnetic chips 220 are E-type magnetic chip 220, are set to magnetic chip
In accommodation groove 211.The shapes and sizes of the opposite two side walls of magnetic chip accommodation groove 211 are identical to the shape of magnetic chip 220
And size；So that after magnetic chip 220 is placed in magnetic chip accommodation groove 211, the shape of magnetic core is mutually all with the shape of magnetic chip 220
E type.Two magnetic cores are oppositely arranged, and are both matched with PCB winding 100 and are plugged in magnetic core through-hole 110.
The shapes and sizes that several shapes and sizes are identical to magnetic chip 220 are additionally provided in magnetic chip accommodation groove 211
Cooling fin 212.After several magnetic chips 220 are set to magnetic chip accommodation groove 211, cooling fin 212 be distributed in several magnetic chips 220 it
Between.The outer wall of shell 210 is additionally provided with several heat bulges 213.Heat bulge 213 increases the heat dissipation of 210 outer surface of shell
Area.
A kind of low-temperature-rise flat surface transformer of the utility model is in use, the heat generated inside magnetic core can pass through cooling fin
212 quickly conduct to shell 210, and heat is facilitated to distribute.Meanwhile the outer wall of shell 210 is additionally provided with several heat bulges
213, the heat dissipation area of 210 outer surface of shell is increased, scattering and disappearing for heat has been further speeded up, so that the temperature rise of flat surface transformer
It reduces.
Further, the both ends of the shell 210 of two groups of magnetic cores are provided with connecting hole 214, and there are two connect the setting of every end
Connect hole 214.The connecting hole 214 at two every ends of shell 210 corresponds and fixation is bolted.This connection type makes
Two groups of magnetic cores tightly clamp PCB winding 100, ensure that the stability of connection, improve the efficiency of flat surface transformer；Meanwhile
It is bolted so that the degree of being completely embedded of two groups of magnetic cores is adjustable.There are two connecting holes 214 for the two every end of shell 210 settings, even
Connecing latter two shell 210 will not shake, and connect more stable.
Further, shell 210 and cooling fin 212 are made of copper.The superior thermal conductivity of copper can be further improved heat dissipation
Efficiency, at the same also can magnetic conduction, that is, the temperature rise for reducing transformer in turn ensures the performance of transformer.
Further, heat conductive silica gel is laid between magnetic chip 220 and shell 210.The setting of heat conductive silica gel is more advantageous to
The heat of magnetic chip 220 is conducted to shell 210, facilitates heat dissipation.
Above-mentioned is only the description to the principles of the present invention, and the principles of the present invention are also suitable for iron oxygen in practice
Body magnetic core.So that cooling fin 212 is distributed in ferrite magnetic core inner, also the heat inside magnetic core can quickly be shed in this way.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.
Above embodiments only express specific embodiment of the present utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.
Claims (5)
1. a kind of low-temperature-rise flat surface transformer, it is characterized in that: including PCB winding (100) and magnetic core；
The PCB winding (100) is provided with magnetic core through-hole (110)；
The magnetic core includes shell (210) and several magnetic chips (220), and the shell (210) is provided with magnetic chip accommodation groove
(211)；Several magnetic chips (220) are set in the magnetic chip accommodation groove (211)；The magnetic chip accommodation groove (211)
The shapes and sizes of opposite two side walls be identical to the shapes and sizes of the magnetic chip (220)；The magnetic core is matched with
The PCB winding (100) is simultaneously plugged in the magnetic core through-hole (110)；
The shape that several shapes and sizes are identical to the magnetic chip (220) is additionally provided in the magnetic chip accommodation groove (211)
With the cooling fin (212) of size, the cooling fin (212) is distributed between several magnetic chips (220)；The shell
(210) outer wall is additionally provided with several heat bulges (213).
2. low-temperature-rise flat surface transformer according to claim 1, it is characterized in that: the magnetic core is provided with two groups, the magnetic
Chip (220) is in E type, and two magnetic cores are oppositely arranged and are matched with the PCB winding (100).
3. low-temperature-rise flat surface transformer according to claim 2, it is characterized in that: the shell (210) of magnetic core described in two groups
Both ends are provided with connecting hole (214)；The connecting hole (214) of two shells (210) is corresponded and is bolted
It is fixed.
4. low-temperature-rise flat surface transformer according to claim 1, it is characterized in that: the shell (210) and the cooling fin
(212) it is made of copper.
5. low-temperature-rise flat surface transformer according to claim 1, it is characterized in that: the magnetic chip (220) and the shell
(210) heat conductive silica gel is laid between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920356437.7U CN209447638U (en) | 2019-03-20 | 2019-03-20 | A kind of low-temperature-rise flat surface transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920356437.7U CN209447638U (en) | 2019-03-20 | 2019-03-20 | A kind of low-temperature-rise flat surface transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209447638U true CN209447638U (en) | 2019-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920356437.7U Active CN209447638U (en) | 2019-03-20 | 2019-03-20 | A kind of low-temperature-rise flat surface transformer |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156059A (en) * | 2020-09-07 | 2022-03-08 | Oppo（重庆）智能科技有限公司 | Transformer, power adapter and electronic equipment assembly |
| CN114496483A (en) * | 2022-02-18 | 2022-05-13 | 上海华湘计算机通讯工程有限公司 | High-power impedance converter |
-
2019
- 2019-03-20 CN CN201920356437.7U patent/CN209447638U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156059A (en) * | 2020-09-07 | 2022-03-08 | Oppo（重庆）智能科技有限公司 | Transformer, power adapter and electronic equipment assembly |
| CN114496483A (en) * | 2022-02-18 | 2022-05-13 | 上海华湘计算机通讯工程有限公司 | High-power impedance converter |
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