CN112768200A - Electronic transformer prepared from flat plate type composite ceramic material and manufacturing method thereof - Google Patents
Electronic transformer prepared from flat plate type composite ceramic material and manufacturing method thereof Download PDFInfo
- Publication number
- CN112768200A CN112768200A CN202110090512.1A CN202110090512A CN112768200A CN 112768200 A CN112768200 A CN 112768200A CN 202110090512 A CN202110090512 A CN 202110090512A CN 112768200 A CN112768200 A CN 112768200A
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- ceramic material
- composite ceramic
- flat plate
- plate type
- electronic transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to the technical field of electronic components and discloses an electronic transformer prepared from a flat plate type composite ceramic material and a manufacturing method thereof. The base plate of the invention adopts the composite ceramic material as the base material, the coil is electroplated or printed on the planar base material, and the insulating sheet is covered on the planar base material, thereby prolonging the creepage distance and strengthening the pressure resistance, so that the invention has excellent insulating and heat dissipation characteristics, improves the heat dissipation performance of the transformer, and strengthens and improves the safety.
Description
Technical Field
The invention relates to the technical field of electronic components, in particular to an electronic transformer prepared from a flat plate type composite ceramic material and a manufacturing method thereof.
Background
An electronic transformer, also called an electronic power transformer, is an electronic device for transferring energy and converting power, and is also a common device in a circuit. The electronic transformer can generate heat due to iron loss and copper loss, and the performance and technical indexes of the transformer are influenced. Conventionally, conduction heat dissipation is adopted. The heat dissipation path is from the inner copper wire to the insulating material, then to the outer copper wire and then to the outer magnetic core, and the heat is continuously increased through the circulation of multiple layers. The electronic transformer has the safety requirements of insulation strength, creepage distance, electrical spacing and the like, and is difficult to balance and completely meet the requirements due to the small space size in the magnetic core and the low window utilization rate. Especially, the design difficulty of creepage distance and insulation strength is large, the traditional electronic transformer is designed by adopting a framework to isolate a magnetic core, insulating adhesive tapes are arranged between layers, and the outside is wrapped by the insulating adhesive tapes. The purpose is exactly in order to lengthen creepage distance, but heat accumulation is difficult to dispel the heat. In order to solve the problems, an electronic transformer prepared from a flat plate type composite ceramic material and a manufacturing method thereof are provided.
Disclosure of Invention
The invention aims to provide an electronic transformer prepared from a flat plate type composite ceramic material and a manufacturing method thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the electronic transformer prepared from the flat plate type composite ceramic material comprises a lower magnetic core, wherein a plurality of substrates are arranged at the top of the lower magnetic core, coils are attached to the top and the bottom of each substrate, insulating sheets are bonded to the top and the bottom of each substrate, and an upper magnetic core is bolted to the top of the lower magnetic core.
Preferably, the surfaces of the substrates are sprayed with an insulating coating.
Preferably, the coils are printed and attached to the top and the bottom of the substrate respectively.
Preferably, the coils are attached to the top and the bottom of the substrate by electroplating respectively.
Preferably, the substrate is made of a ceramic material.
A method for manufacturing an electronic transformer prepared from a flat plate type composite ceramic material comprises the following steps:
step 1: mixing composite ceramic materials into slurry, preparing a green sheet with a required thickness by adopting a tape casting process, cutting the green sheet into pieces, performing compression molding through a prefabricated mold, and then sintering and shaping to form a planar substrate;
step 2: electroplating or printing a coil on a substrate, then covering insulating paint on the coil, and covering a layer of insulating sheet to form a shaped coil circuit board;
and step 3: and sequentially stacking circuit boards with different functions in a layered mode, leading out coil pins, loading the coil pins into a magnetic core, and fixing, packaging and molding.
Compared with the prior art, the invention has the following beneficial effects:
the base plate of the invention adopts the composite ceramic material as the base material, the coil is electroplated or printed on the plane base material, and the insulating sheet is covered on the plane base material, thereby prolonging the creepage distance, and strengthening the pressure resistance, so that the invention has excellent insulating and heat dissipation characteristics, improves the heat dissipation performance of the transformer, and strengthens and improves the safety.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded perspective view of the present invention;
fig. 3 is a partial front view of the present invention.
In the figure: 1. a lower magnetic core; 2. a substrate; 3. a coil; 4. an insulating sheet; 5. an insulating coating; 6. and an upper magnetic core.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an electronic transformer made of a flat composite ceramic material includes a lower magnetic core 1, a plurality of substrates 2 disposed on the top of the lower magnetic core 1, coils 3 attached to the top and bottom of the substrates 2, insulating sheets 4 attached to the top and bottom of the substrates 2, and an upper magnetic core 6 bolted to the top of the lower magnetic core 1.
Further, the surface of the substrate 2 is sprayed with an insulating coating 5.
Further, the coils 3 are printed and attached to the top and bottom of the substrate 2, respectively.
Further, the coil 3 is attached to the top and bottom of the substrate 2 by plating, respectively.
Further, the substrate 2 is made of a ceramic material.
A method for manufacturing an electronic transformer prepared from a flat plate type composite ceramic material comprises the following steps:
step 1: mixing the composite ceramic material into slurry, preparing a green sheet with a required thickness by adopting a tape casting process, cutting the sheet, performing compression molding through a prefabricated mold, and then sintering and shaping to form the planar substrate 2;
step 2: electroplating or printing a coil on the substrate, then covering insulating paint on the coil 3, and covering a layer of insulating sheet to form a well-shaped coil circuit board;
and step 3: and sequentially stacking circuit boards with different functions in a layered mode, leading out coil pins, loading the coil pins into a magnetic core, and fixing, packaging and molding.
The working principle is as follows: the substrate 2 of the invention adopts the composite ceramic material as the base material, the coil is electroplated or printed on the planar base material, and the insulating sheet 4 is covered on the planar base material, thereby prolonging the creepage distance and strengthening the pressure resistance, so that the invention has excellent insulating and radiating characteristics, improves the radiating performance of the transformer, and strengthens and improves the safety. The composite ceramic material has high dielectric constant, excellent insulating and heat dissipating characteristics, corrosion resistance, high temperature resistance and high pressure resistance, is used as a substrate to replace a glass fiber circuit board, utilizes the characteristics of two-in-one with excellent insulation and heat dissipation, solves the problems of difficult voltage resistance and heat dissipation of the conventional transformer, solves the problem of difficult creepage distance in a sealing mode, and is very suitable for application of electronic transformers.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An electronic transformer prepared from a flat plate type composite ceramic material comprises a lower magnetic core (1), and is characterized in that: the top of lower magnetic core (1) is provided with a plurality of base plate (2), coil (3) have all been laminated with the bottom in the top of base plate (2), the top and the bottom of base plate (2) all bond insulating piece (4), magnetic core (6) have been pegged graft to the top of lower magnetic core (1).
2. The electronic transformer made of the flat plate type composite ceramic material according to claim 1, wherein: the surface of the substrate (2) is sprayed with an insulating coating (5).
3. The electronic transformer made of the flat plate type composite ceramic material according to claim 1, wherein: the coils (3) are printed and attached to the top and the bottom of the substrate (2) respectively.
4. The electronic transformer made of the flat plate type composite ceramic material according to claim 1, wherein: the coil (3) is respectively attached to the top and the bottom of the substrate (2) in an electroplating mode.
5. The electronic transformer made of the flat plate type composite ceramic material according to claim 1, wherein: the substrate (2) is made of ceramic material.
6. A method for manufacturing an electronic transformer prepared from a flat plate type composite ceramic material is characterized by comprising the following steps: the method comprises the following steps:
step 1: mixing composite ceramic materials into slurry, preparing a green sheet with a required thickness by adopting a tape casting process, cutting the green sheet into pieces, performing compression molding through a prefabricated mold, and then sintering and shaping to form a planar substrate (2);
step 2: electroplating or printing a coil (1) on a substrate (2), then covering insulating paint on the coil (1), and then covering a layer of insulating sheet (4) to form a well-shaped coil circuit board;
and step 3: and sequentially stacking circuit boards with different functions in a layered mode, leading out coil pins, loading the coil pins into a magnetic core, and fixing, packaging and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110090512.1A CN112768200A (en) | 2021-01-22 | 2021-01-22 | Electronic transformer prepared from flat plate type composite ceramic material and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110090512.1A CN112768200A (en) | 2021-01-22 | 2021-01-22 | Electronic transformer prepared from flat plate type composite ceramic material and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112768200A true CN112768200A (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110090512.1A Pending CN112768200A (en) | 2021-01-22 | 2021-01-22 | Electronic transformer prepared from flat plate type composite ceramic material and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112768200A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871130A (en) * | 2021-11-08 | 2021-12-31 | 中国电子科技集团公司第二十四研究所 | High-reliability hybrid power supply magnetic device based on exoskeleton structure and manufacturing method thereof |
| CN114864276A (en) * | 2022-05-17 | 2022-08-05 | 深圳市禾望电气股份有限公司 | Insulation processing method for enhancing creepage distance of transformer |
-
2021
- 2021-01-22 CN CN202110090512.1A patent/CN112768200A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871130A (en) * | 2021-11-08 | 2021-12-31 | 中国电子科技集团公司第二十四研究所 | High-reliability hybrid power supply magnetic device based on exoskeleton structure and manufacturing method thereof |
| CN113871130B (en) * | 2021-11-08 | 2023-06-02 | 中国电子科技集团公司第二十四研究所 | High-reliability hybrid power magnetic device based on exoskeleton structure and manufacturing method thereof |
| CN114864276A (en) * | 2022-05-17 | 2022-08-05 | 深圳市禾望电气股份有限公司 | Insulation processing method for enhancing creepage distance of transformer |
| CN114864276B (en) * | 2022-05-17 | 2023-11-17 | 深圳市禾望电气股份有限公司 | Insulation processing method for enhancing creepage distance of transformer |
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