CN2807422Y - Low-temperature co-fired ceramic winding high frequency power transformer - Google Patents
Low-temperature co-fired ceramic winding high frequency power transformer Download PDFInfo
- Publication number
- CN2807422Y CN2807422Y CN 200520113665 CN200520113665U CN2807422Y CN 2807422 Y CN2807422 Y CN 2807422Y CN 200520113665 CN200520113665 CN 200520113665 CN 200520113665 U CN200520113665 U CN 200520113665U CN 2807422 Y CN2807422 Y CN 2807422Y
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Abstract
The utility model discloses a low-temperature co-fired ceramic winding high frequency power transformer, which comprises a winding, a plane magnetic material and a transformer pin, wherein the winding is an integral composite ceramic winding module which is formed by the low temperature co-fire of metal conductor paste and ceramic materials which are laminated with each other in a plurality of layers, and the integral composite ceramics winding module uses ceramic as insulated skeleton and comprises the connection of inner metal winding wires; the plane magnetic material is coated outside the winding, and the transformer pin is a welding disc pasted on the outer surface of the ceramic winding module or a through hole welded on the periphery of the ceramic winding module or a pin pasted on the surface of the ceramic winding module. The utility model is convenient for the insulated processing of winding, and the winding has favorable heat dissipation property and high temperature resistance; the thickness of a single layer can be lowered and the number of layers can be increased to ensure that the high frequency characteristics of the transformer has competitive power. The utility model is good for reducing the volume of the whole transformer.
Description
Technical field
The utility model relates to a kind of transformer, specifically, relates to a kind of LTCC winding high-frequency power transformer.
Background technology
Traditional high-frequency power transformer generally adopts the enamelled wire coiling, in order to adapt to the demand of present high-frequency power transformer, and the power transformer that the power supply that has occurred using metallic laminations or adopt the multi-layer PCB board mode to make is used.
Adopt the traditional transformer of enamelled wire coiling to have many shortcomings:
Because must use the enamelled wire coiling, though can use automatic coil winding machine to finish the machine coiling, but still have the problem of the efficient of processing, can't really produce in enormous quantities, maybe need to consume a large amount of labours or a large amount of winding equipment, just can enhance productivity.
The insulation property of enamelled wire are difficult to effectively be guaranteed under the influence of coiling, must carry out further insulation processing, as twining insulating tape or using reinforced insulation line etc.This has reduced actual magnetic material windows utilance undoubtedly, makes the volume of transformer not dwindle effectively.
The enamelled wire coiling must be used the skeleton of plastics or other insulating material, and the heat radiation of winding has become a very large problem.
Because there is skin effect in high frequency transformer, it is thick to cause enamelled wire not select, and needs the multiply coiling, the further like this difficulty that increases the transformer coiling.
A kind of often flexible cord of the outlet of enamelled wire, it is impossible that it is welded into automatically, is unfavorable for that so also power transformer product uses in automated production.If enamelled wire is weldingly fixed on earlier on pre-designed via hole or the surface-pasted skeleton, then need a pre-welding process.Technological process further increases.
In addition, because the coat of paint of enamelled wire own insulate, all needing to carry out the coating removal processing with skeleton welding or direct outlet.Though the straight welding lacquered wire that can directly weld is arranged now, but its working temperature is all well below common enamelled wire, use the transformer of this enamelled wire coiling turn-to-turn short circuit or other Insulation Problems under higher ambient temperature, may occur like this, and can not use.
Because above-mentioned shortcoming, flat surface transformer has produced.General flat surface transformer all is to use the plane magnetic material, complexed metal lamination or multi-layer PCB board and some insulating material, and the moulding pin forms high-frequency power transformer.There are the following problems at present for this transformer:
If the use multi-layer PCB board because pcb board is the lower expoxy glass cloth material of vitrification point, therefore is operated in the phenomenon of mechanical performance declines such as will occurring under the condition of high temperature being out of shape, and finally influences the operating characteristic of transformer when transformer.
The heat conductivility of the pcb board of epoxy glass fabric material is very poor, and the heat that causes winding be difficult to dissipate and occurs the hot localised points of transformer easily.This is unfavorable for the hot operation characteristic of transformer.
Because the making number of plies of multi-layer PCB has tangible restriction, make that very the winding of multi-turn is difficult to realize.Because the thickness of prepreg of compacting multi-layer PCB can not be too thin, and the thickness that covers copper also is subjected to certain limitation, and therefore, the window utilance of multi-layer PCB board also can not be very high.
Though the mode of metallic laminations has solved the application problem of big electric current, the problem that also exists metal-insulator to handle simultaneously.General way is to use the method for covering dielectric film to handle at present.But relatively more difficult in the processes process, be unfavorable for producing in enormous quantities.
Multi-layer PCB connects the general mode of many via holes of using and links to each other between processing layer, must use a considerable amount of via holes could guarantee reliable the connection.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of above-mentioned flat surface transformer and traditional transformer, a kind of LTCC winding high-frequency power transformer is provided, it realizes Transformer Winding by using LTCC LTCC technology, has good insulating, high temperature resistant, volume is little, the advantage that power density is high.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model LTCC winding high-frequency power transformer, comprise winding, planar magnetic material and transformer pin, described winding for metallic conductor slurry and ceramic material laminated multi-layer, be insulation framework with the pottery by low temperature co-fired formation, comprise the whole composite ceramics winding module that the interior metal coiling connects, described winding is with the planar magnetic material outward, and the transformer pin is the pad that mounts of ceramic winding module outer surface or takes over hole or surface mount pin at edge joint weld.
Winding described in the utility model is a sandwich construction, can be the 1-100 layer.The thickness of described winding single-layer ceramic is 20um-100um.
LTCC (LTCC) technology is an emerging electron ceramic material technology, be used at present much temperature and high frequency etc. have been required than in the high product, high frequency assembly, high frequency small-power inductance and the antenna of using as some communications, bluetooth module etc.
LTCC (LTCC) technology is the Ceramic Composite assembly that internal wiring connects that comprises that metallic conductor, resistance slurry, capacitor dielectric material, ferrite slurry and ceramic material co-sintered under the temperature of 600-800 degree is formed multilayer.
The utlity model has following advantage:
1, base material is a ceramic material, and it has the good insulation performance performance.So the insulation processing to winding is all very convenient.
2, the heat conductivility of ceramic material is good, helps the winding heat radiation.
3, ceramic material is high temperature resistant, can be higher than 200 the degree ambient temperatures under still can operate as normal.
4, LTCC Technology can be burnt altogether and be reached nearly hundred layers, brings more flexibility therefore for the PCB design of transformer.Especially the design of high voltage transformer.
5,, make that the high frequency characteristics of transformer is more competitive owing to the thickness that can reduce individual layer increases the number of plies.
6, because the thickness of single-layer ceramic can arrive 20um, therefore by special processed, the window utilance of transformer can improve greatly.Be very beneficial for reducing the volume of whole transformer like this.May be with the transformer that the LTCC winding is made than the little 1/3-1/5 of transformer of general multi-layer PCB making.
7, because the connection of LTCC Technology solution interlayer winding is to rely on to burn metal altogether, no matter, still all be much better than the structure of multi-layer PCB from connection reliability from connecting resistance.
The utility model utilizes LTCC Technology to realize the flat surface transformer Winding Design, and it provides one solution for the transformer of high temperature environment, high-frequency work.Also provide condition for the transformer miniaturization.Further combined with the expansion of LTCC technology, transformer and other power supply critical power ratio parts can be carried out further integratedly, form that heat radiation is good, high, the highly integrated power model of power density.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model LTCC winding high-frequency power transformer, comprise winding 1, planar magnetic material 2 and transformer pin 3, described winding for metallic conductor slurry and ceramic material laminated multi-layer, be insulation framework with the pottery by low temperature co-fired formation, comprise the whole composite ceramics winding module that the interior metal coiling connects, described winding is with the planar magnetic material outward, and the transformer pin is the pad that mounts of ceramic winding module outer surface or takes over hole or surface mount pin at edge joint weld.
Winding described in the utility model is a sandwich construction, can be 80 layers.The thickness of described winding single-layer ceramic is 20um.
Claims (4)
1, a kind of LTCC winding high-frequency power transformer, comprise winding, planar magnetic material and transformer pin, it is characterized in that: described winding for metallic conductor slurry and ceramic material laminated multi-layer, be insulation framework with the pottery by low temperature co-fired formation, comprise the whole composite ceramics winding module that the interior metal coiling connects, described winding is with the planar magnetic material outward, and the transformer pin is the pad that mounts of ceramic winding module outer surface or takes over hole or surface mount pin at edge joint weld.
2, LTCC winding high-frequency power transformer as claimed in claim 1, it is characterized in that: described winding is a sandwich construction.
3, LTCC winding high-frequency power transformer as claimed in claim 2, it is characterized in that: described winding is the 1-100 layer.
4, LTCC winding high-frequency power transformer as claimed in claim 3, it is characterized in that: the thickness of described winding single-layer ceramic is 20um-100um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113665 CN2807422Y (en) | 2005-07-14 | 2005-07-14 | Low-temperature co-fired ceramic winding high frequency power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113665 CN2807422Y (en) | 2005-07-14 | 2005-07-14 | Low-temperature co-fired ceramic winding high frequency power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807422Y true CN2807422Y (en) | 2006-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113665 Expired - Lifetime CN2807422Y (en) | 2005-07-14 | 2005-07-14 | Low-temperature co-fired ceramic winding high frequency power transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN2807422Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789311A (en) * | 2010-02-11 | 2010-07-28 | 深圳顺络电子股份有限公司 | LTCC low temperature co-fired ceramic flat surface transformer |
| CN106328354A (en) * | 2015-06-17 | 2017-01-11 | 深圳市高斯博电子科技有限公司 | An LTCC technology-based multi-winding wire arrangement induction transformer coil |
| CN106409481A (en) * | 2015-07-28 | 2017-02-15 | 深圳市高斯博电子科技有限公司 | Network transformer adopting LTCC technique |
| CN106935359A (en) * | 2015-12-31 | 2017-07-07 | 佛山市柯博明珠数码电子有限公司 | A kind of ferrite and the co-burning method of rich iron conductor and its component of manufacture |
| CN110360919A (en) * | 2019-08-06 | 2019-10-22 | 中国电子科技集团公司第四十九研究所 | A kind of superhigh temperature displacement sensor |
-
2005
- 2005-07-14 CN CN 200520113665 patent/CN2807422Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789311A (en) * | 2010-02-11 | 2010-07-28 | 深圳顺络电子股份有限公司 | LTCC low temperature co-fired ceramic flat surface transformer |
| CN106328354A (en) * | 2015-06-17 | 2017-01-11 | 深圳市高斯博电子科技有限公司 | An LTCC technology-based multi-winding wire arrangement induction transformer coil |
| CN106409481A (en) * | 2015-07-28 | 2017-02-15 | 深圳市高斯博电子科技有限公司 | Network transformer adopting LTCC technique |
| CN106409481B (en) * | 2015-07-28 | 2019-01-22 | 深圳市高斯博电子科技有限公司 | A kind of network transformer being routed using LTCC technology |
| CN106935359A (en) * | 2015-12-31 | 2017-07-07 | 佛山市柯博明珠数码电子有限公司 | A kind of ferrite and the co-burning method of rich iron conductor and its component of manufacture |
| CN106935359B (en) * | 2015-12-31 | 2021-06-11 | 佛山市柯博明珠数码电子有限公司 | Co-firing method of ferrite and iron-rich conductor and component manufactured by same |
| CN110360919A (en) * | 2019-08-06 | 2019-10-22 | 中国电子科技集团公司第四十九研究所 | A kind of superhigh temperature displacement sensor |
| CN110360919B (en) * | 2019-08-06 | 2021-04-02 | 中国电子科技集团公司第四十九研究所 | Ultra-high temperature displacement sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING NEW LIGHTING CO.,LTD. Free format text: FORMER OWNER: BEIJING JINLEIFU SCIENCE CO., LTD. Effective date: 20080118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: Beijing City, Xisanqi road building xinleineng, zip code: 100096 Patentee after: Beijing Xinleineng Co., Ltd. Address before: Beijing City, Xisanqi road building xinleineng, zip code: 100096 Patentee before: Beijing Lafupower Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING SUPLET CO., LTD. Free format text: FORMER NAME: BEIJING XINLEINENG CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 102200, room 285, block B, No. 9, front road, Changping District science and Technology Park, Beijing Patentee after: Beijing Suplet Co., Ltd. Address before: 100096 Beijing city Xisanqi xinleineng road building Patentee before: Beijing Xinleineng Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150714 Granted publication date: 20060816 |
|
| EXPY | Termination of patent right or utility model |