CN213043604U - Ultrathin inverter - Google Patents
Ultrathin inverter Download PDFInfo
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- CN213043604U CN213043604U CN202022020722.7U CN202022020722U CN213043604U CN 213043604 U CN213043604 U CN 213043604U CN 202022020722 U CN202022020722 U CN 202022020722U CN 213043604 U CN213043604 U CN 213043604U
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Abstract
The utility model discloses an ultra-thin dc-to-ac converter. The inverter comprises an inverter main circuit board; the transformer is also included; the module also comprises a ceramic-based circuit board module, wherein the ceramic-based circuit board consists of a circuit layer and a ceramic base layer, and MOS (metal oxide semiconductor) tubes at the front stage and the rear stage of the inverter are welded on the ceramic-based circuit board to form the module; meanwhile, the transformer adopts a planar transformer, and the device method of the transformer is optimized. The height of the whole electronic component on the main circuit board of the inverter is reduced by carrying out optimized design and resetting on two devices with large height in the inverter, the transformer and the front and rear MOS tube groups; and the ultra-thin inverter design is realized.
Description
Technical Field
The utility model relates to an inverter for direct current-alternating current conversion. The front and rear high-low voltage MOS tubes of the inverter are arranged on the ceramic-based circuit board, and the planar transformer is adopted, so that the ultrathin design of the product is realized.
Background
With the progress of science and technology, the inverter is more and more widely applied; an inverter is a converter that converts direct current into alternating current. The vehicle-mounted inverter is a converter for converting 12V or 24V direct current into 220V alternating current. A transformer is required in the inverter circuit.
The planar transformer, also called PCB transformer, is formed by winding a plurality of layers of printed circuit boards, does not adopt copper wire windings, and removes the winding framework of the traditional transformer. The volume becomes smaller and particularly the thickness is greatly reduced.
Power tubes are used in a large number of electronic products. MOS tube and IGBT are commonly used; the MOS transistor is also called as a field effect transistor; it has many uses, mainly used as switch component. The IGBT is another power tube, also called an insulated gate bipolar thyristor, and is mainly used as a switch component.
The traditional transformer has large volume and thickness; the MOS transistor has a large volume and thickness in the product due to the heat dissipation problem. Resulting in a larger product size.
Disclosure of Invention
In view of the above problems, the present invention is directed to provide an ultra-thin inverter, which adopts a planar transformer while adopting a high-low voltage MOS transistor module, and integrates the planar transformer with a main circuit board of the inverter; further reducing the volume and facilitating the design and production of the product.
In order to realize the technical purpose, the utility model discloses a scheme is: an ultra-thin inverter includes an inverter main circuit board; the transformer is also included; the inverter is characterized by further comprising a ceramic-based circuit board module, wherein the ceramic-based circuit board module is composed of a circuit layer and a ceramic base layer, two or more groups of low-voltage MOS (metal oxide semiconductor) tubes welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with a primary coil of the transformer, and the output ends of two or more groups of high-voltage MOS tubes welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with an alternating current output port of the inverter.
Preferably, the adopted transformer is a planar transformer, the planar transformer consists of a plurality of layers of circuit board groups distributed with coils and magnetic cores, wherein one layer of coil is arranged on the main circuit board of the inverter; the multilayer wiring board group provided with the coils is clamped in the magnetic core.
Preferably, the MOS transistor can adopt a MOS transistor wafer.
The beneficial effects of this technical scheme are: the thickness of the product is optimized, the whole volume is reduced, the appearance of the product is beautified, and meanwhile, the performance of the product is improved.
Drawings
Fig. 1 is a schematic view of an embodiment of the present invention.
Fig. 2 is a sectional view of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a ceramic-based circuit board module according to an embodiment of the present invention.
Fig. 4 is a reference circuit diagram of an ac output terminal high voltage MOS transistor set according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an ultra-thin inverter includes an inverter main circuit board 1; also comprises a transformer 2; the inverter is characterized by further comprising a ceramic-based circuit board module 3, wherein the ceramic-based circuit board is composed of a circuit layer and a ceramic base layer, two or more groups of low-voltage MOS tubes 31 welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with a primary coil of a transformer, and the output ends of two or more groups of high-voltage MOS tubes 32 welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with an alternating current output port 4 of the inverter.
Fig. 2 is a cross-sectional view of an embodiment of the present invention. The adopted transformer is a planar transformer which consists of a plurality of layers of circuit board groups distributed with coils and magnetic cores, wherein one layer of coil is arranged on a main circuit board of the inverter; a wiring board 21 on which coils are arranged is stacked on the coils on the inverter main circuit board 1, and sandwiched between magnetic cores 22.
Fig. 3 is a schematic view of a ceramic-based circuit board module according to an embodiment of the present invention. Two or more groups of low-voltage MOS tubes 31 welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with the primary coil of the transformer 2 through corresponding pins of a group of metal pins 5 welded on the circuit layer of the ceramic-based circuit board, and the output ends of two or more groups of high-voltage MOS tubes 32 welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with the AC output port 4 of the inverter through corresponding pins of a group of metal pins 5 welded on the circuit layer of the ceramic-based circuit board
Fig. 4 is a reference circuit diagram of an ac output high voltage MOS transistor set according to an embodiment of the present invention. The bridge circuit is a mature circuit and is widely adopted in the market.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (3)
1. An ultra-thin inverter characterized by: the inverter comprises an inverter main circuit board; the transformer is also included; the inverter is characterized by further comprising a ceramic-based circuit board module, wherein the ceramic-based circuit board module is composed of a circuit layer and a ceramic base layer, two or more groups of low-voltage MOS (metal oxide semiconductor) tubes welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with a primary coil of the transformer, and the output ends of two or more groups of high-voltage MOS tubes welded on the circuit layer of the ceramic-based circuit board are correspondingly connected with an alternating current output port of the inverter.
2. The ultra-thin inverter of claim 1, wherein: the adopted transformer is a planar transformer which consists of a plurality of layers of circuit board groups distributed with coils and magnetic cores, wherein one layer of coil is arranged on a main circuit board of the inverter; the multilayer wiring board group provided with the coils is clamped in the magnetic core.
3. The ultra-thin inverter of claim 1, wherein: the MOS transistor can adopt a MOS transistor wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022020722.7U CN213043604U (en) | 2020-09-15 | 2020-09-15 | Ultrathin inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022020722.7U CN213043604U (en) | 2020-09-15 | 2020-09-15 | Ultrathin inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213043604U true CN213043604U (en) | 2021-04-23 |
Family
ID=75534914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022020722.7U Active CN213043604U (en) | 2020-09-15 | 2020-09-15 | Ultrathin inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213043604U (en) |
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2020
- 2020-09-15 CN CN202022020722.7U patent/CN213043604U/en active Active
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