CN1269149C - Encapsulated transformer - Google Patents
Encapsulated transformer Download PDFInfo
- Publication number
- CN1269149C CN1269149C CNB008145245A CN00814524A CN1269149C CN 1269149 C CN1269149 C CN 1269149C CN B008145245 A CNB008145245 A CN B008145245A CN 00814524 A CN00814524 A CN 00814524A CN 1269149 C CN1269149 C CN 1269149C
- Authority
- CN
- China
- Prior art keywords
- transformer
- housing
- transparent
- described housing
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
- H01F27/02—Casings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Housings And Mounting Of Transformers (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Catching Or Destruction (AREA)
- Transformers For Measuring Instruments (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
- Insulating Of Coils (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
An encapsulated transformer assembly (20) comprises a transformer (30) enclosed by a transparent electricity insulating skin (32, 34). The transparent skin facilitates heat exchange resulting in more effective operation in use.
Description
Technical field
The present invention relates to transformer and comprise the electric device of transformer with other, such as supply unit, and the method that forms electric device.
Background technology
By transformer is concentrated on transformer is insulated on electric, and to fill a kind of opaque insulating material be well-known to the zone between transformer and described cover inwall, be in line substantially shape and have a bottom that opens wide of wherein said plastic jacket.The described material zone between transformer and described cover bottom usually forms a spill diapire.Transformer can produce heat in use, because described cover and medium insulating material all can not transmit heat effectively, so heat can not dissipate effectively.This may cause damage to transformer, perhaps can cause higher electrical loss at least.This problem is in comprising other device of transformer, such as also running in the supply unit.
In addition, above-mentioned device for transformer is installed on the printed circuit board (PCB) by a plurality of legs usually, and wherein said leg extends to the above-mentioned bottom section that exceeds described cover from the electric connection terminal of transformer.Described cover usually and circuit board be installed in adjacent to each other on the circuit board, the result forms a cavity between described circuit board and above-mentioned diapire.During use, because variation of temperature in the cavity, the air that contains moisture enters and is collected in the described cavity, and through after a while, described moisture can make printed circuit board (PCB) cause damage.
Goal of the invention
Therefore, an object of the present invention is to provide the method for a kind of electric device and this electric device of formation, the applicant believes by this device can alleviate above-mentioned deficiency at least.
Summary of the invention
According to the present invention, a kind of electric device is provided, the housing that comprises the permanent translucent or transparent electric insulation of a transformer and, make heat that transformer produces by described cover to unofficial biography, it is characterized in that described housing has the shape identical with the shape of described transformer.
Described cover is preferably transparent.Described transformer also comprises a transparent bobbin that transformer core and Transformer Winding are installed on it.
In one embodiment, described housing constitutes thin shell.
Described shell comprises that the transparent outer layer housing of a rigid material and one deck are filled in the transparent packing material between described housing and the described transformer.Described housing can comprise and being mounted together to form the first and second housing half blocks of described housing.
Described shell can comprise outward extending projection, thereby at described shell with install in use between the surface of described device a space is provided.
In another embodiment, described cover can be a box-like, and can comprise that a plurality of and conventional socket device is complementary and forms the plug that electrically contacts.
Described transformer can become the part of power circuit system, and described power circuit system can comprise one by palp first output of described cover.Described power supply Circuits System may further include one second output, and described second output-parallel and also can touch by described cover in described first output.
Described Circuits System can comprise a fuse, and described fuse preferably is placed in the groove of described cover.
Described cover can comprise a lid that is used for the described groove of opening and closing.
According to the present invention, the method that forms a kind of electric device also is provided, described method comprises the following steps: to provide a transformer; With described transformer permanently is enclosed in the housing transparent or translucent electric insulation, described housing has the shape identical with described transformer, the heat that the housing of the electric insulation described in make using produces transformer is toward unofficial biography.
Preferably, so place described transformer:, make between the whole outer surface of described transformer and described housing, to form a little space by described transformer is installed like this in described housing; In the space, fill transparent electrical insulating material, locate described transformer like this.
Brief description of drawings
The general of the present invention is now only described further according to the embodiment of its accompanying drawing:
The perspective illustration of the device for transformer of Fig. 1 prior art;
Fig. 2 is according to the schematic exploded perspective view of device for transformer of the present invention;
Device perspective illustration after Fig. 3 Fig. 2 assembling;
Fig. 4 is according to the perspective illustration of overlooking of supply unit of the present invention;
Fig. 5 supply unit look up perspective illustration; With
The basic block diagram of the supply unit of Fig. 6 Fig. 4;
The description of invention preferred embodiment
In Fig. 1, what the device for transformer of prior art was total is 10.Described device comprises a transformer (not shown) that is installed in the opaque cover 12, and described cover 12 has a bottom that opens wide 14.The opaque thermoset epoxy resin 16 of a pile is placed in the described cover of the described transformer of embedding, thus the described transformer of electric insulation and described transformer permanently is placed in the described cover.
Being connected to four conductive legs 18 on the transformer terminal (not shown) extends to and exceeds by the formed spill diapire 17 of resin, and also exceed described cover open wide the bottom 14, described leg 18 is used for described transformer is connected to external circuit system (also not shown).
The shortcoming of this device is with reference to specification preface part.
In Fig. 2, what device for transformer according to the present invention was total is designated as 20.Described device comprises a transformer 30, and described transformer 30 comprises a transparent bobbin 22 of being made by suitable plastic materials.One folded magnetic material thin slice 23 centers on and extends stack along bobbin, to form the magnetive cord of described transformer.The elementary winding 24 and the secondary winding 26 of described transformer are located on the described bobbin with known manner.Do not lay insulating tape but resemble around the described winding some known transformer and the device for transformer.Conductive legs 28 is connected on the input and output terminal (not shown) of described transformer 30.
Described device also comprise one translucent, the first and second housing half blocks 32,34 of preferably transparent durable housing 31 (shown in Figure 3), described housing 31 is made by the appropriate rigidity plastic material.The described housing of the common formation of described two housing half blocks, described housing has the shape and the profile of the big body profile that is similar to described transformer 30 substantially.When assembling, between described housing 31 and the described transformer 30 that surrounded thus, form a little space.The second housing half block 34 forms an opening 36 in heart zone therein.
When assembling described device, after by housing half block 32 and 34 is clipped together described housing 31 being combined, a kind of transparent thermosets is put in the housing to fill the space by opening 36, between described transformer and described housing, to form a thin layer, to discharge the gas in the described housing.Described material can be put in the opening 36 by a kind of sucker mechanism and operation.Allow to solidify described material then.
Therefore described device comprises a thin transparent outer cover 38 (shown in Figure 3) that is suitable for described transformer, and described shell 38 is made up of described hyaline layer 37 and described transparent shell 31.
Described pin 28 extends to and exceeds described housing half block 34, and purpose is that described device 20 can be installed on the printed circuit board (PCB) (not shown) in known manner.Described pin 33 guarantees between described device and described printed circuit board (PCB) to form a permanent space, so that the air circulation between described transformer and the described circuit board, thereby improves the heat radiation of transformer.
What can believe is, because described transparent bobbin 22 does not have insulating tape and is provided with described thin transparent outer cover 38 around the described winding 24,26, outwards transmission is more effective in above-mentioned transformer of the prior art for the outside transfer ratio of the heat that described transformer produced.
Described device forms hole 40 respectively in the lug position 42,44 of described bobbin 22 and housing half block 34.These holes are used for such as by bolt 48 or screw and nut transponder are installed in base plate 46, and described hole is to be easy to touch from the position of the central shaft unanimity in described hole.
Therefore, simple mechanism according to the present invention is suitable for so-called printed circuit board (PCB) and bottom block.
A supply unit 50 has been shown in Figure 4 and 5 according to the present invention.Described supply unit 50 comprises a transparent or semitransparent box-like cover 52 that is suitable for power circuit system 54, and described power circuit system 54 comprises a transformer 56.Described cover 52 is easy to transmit the heat that described Circuits System produces.
Described cover comprises a plurality of plugs 58 (two or three) of matching with the conventional socket device (not shown) of main supply network of being used for.Have a cavity 60 that is suitable for interchangeable fuse 62 in the base plate 52.1 of described cover, described fuse 62 is connected in the elementary or secondary circuit of described transformer.Described cavity movably covers 64 by one and carries out opening and closing.
Described cover limits one first opening, and described first opening provides the path near first pair of dc output end 66 of supply unit.The second pair output 68 in parallel with first pair also is come-at-able by described cover.
Figure 6 illustrates the block diagram of described supply unit.Described above-mentioned plug label is 58, and described plug 58 is connected on the elementary winding 72 of protective circuit system 70 and described transformer, and wherein said protective circuit system 70 comprises the discharge protection circuit system.Described Secondary winding of transformer 74 is connected on the voltage regulator circuit 76, and described voltage regulator circuit is connected on described output 66 and 68.Described fuse 62 can be connected to the elementary and/or secondary circuit of described transformer.
Should be appreciated that under the situation of the scope and spirit that do not break away from dependent claims variation on many details to be arranged according to apparatus and method of the present invention.
Claims (10)
1. an electric device (20), the housing (31) that comprises the permanent translucent or transparent electric insulation of a transformer (30) and, make heat that transformer produces by described cover to unofficial biography, it is characterized in that described housing (31) has the identical shape of shape with described transformer (30).
2. according to the device of claim 1, it is characterized in that described housing (31) is transparent.
3. according to the device of claim 1, it is characterized in that described transformer comprises a transparent bobbin (22), is equipped with transformer core (23) and Transformer Winding on the described bobbin.
4. according to each device among the claim 1-3, it is characterized in that described housing constitutes thin shell (38).
5. according to the device of claim 4, it is characterized in that described shell (38) comprises that the transparent outer layer housing (31) of a rigid material and one deck are filled in the transparent packing material (37) between described housing and the described transformer.
6. according to the device of claim 5, it is characterized in that described housing comprises to be assembled together to form the first and second housing half blocks (32,34) of described housing.
7. according to the device of claim 4, it is characterized in that described shell comprises outward extending projection (33), thereby between the surface that described shell and described device are installed in use, form a space.
8. form a kind of method of electric device, described method comprises the following steps:
-transformer (30) is provided; With
-described transformer permanently is enclosed in the housing transparent or translucent electric insulation (31), described housing (31) has and the identical shape of described transformer (30), the past unofficial biography of heat that the housing of the electric insulation described in feasible the use produces transformer.
9. method according to Claim 8 is characterized in that described housing constitutes thin shell.
10. according to claim 9 method, it is characterized in that so placing described transformer:, make between the whole outer surface of described transformer (30) and described housing (31), to form a little space by described transformer (30) is installed like this in described housing; In the space, fill transparent electrical insulating material (37), locate described transformer like this.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA99/5296 | 1999-08-19 | ||
| ZA995296 | 1999-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1379907A CN1379907A (en) | 2002-11-13 |
| CN1269149C true CN1269149C (en) | 2006-08-09 |
Family
ID=25587862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008145245A Expired - Fee Related CN1269149C (en) | 1999-08-19 | 2000-08-18 | Encapsulated transformer |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1256119B1 (en) |
| CN (1) | CN1269149C (en) |
| AT (1) | ATE429021T1 (en) |
| AU (1) | AU6805400A (en) |
| CA (1) | CA2420312A1 (en) |
| DE (1) | DE60042033D1 (en) |
| HK (1) | HK1051437A1 (en) |
| WO (1) | WO2001013385A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2822586B1 (en) * | 2001-03-20 | 2003-06-20 | Aupem Sefli | OVER-MOLDED HIGH-VOLTAGE ELECTRIC TRANSFORMER |
| CN102313844A (en) * | 2011-07-29 | 2012-01-11 | 牡丹江电业局 | Portable multifunctional test power supply device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008205A (en) * | 1962-11-06 | 1977-02-15 | Imperial Chemical Industries Limited | Polysulphones as insulators |
| JPS5352922A (en) * | 1976-10-25 | 1978-05-13 | Hitachi Ltd | Mold transformer |
| JPS5743405A (en) * | 1980-08-29 | 1982-03-11 | Hitachi Ltd | Manufacture of molded flyback type transformer |
| CA2062608A1 (en) * | 1991-04-18 | 1992-10-19 | Steven W. Tanamachi | Two-part sensor with transformer power coupling and optical signal coupling |
| US6144278A (en) * | 1997-02-18 | 2000-11-07 | Canon Kabushiki Kaisha | Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit |
-
2000
- 2000-08-18 DE DE60042033T patent/DE60042033D1/en not_active Expired - Lifetime
- 2000-08-18 EP EP00955937A patent/EP1256119B1/en not_active Expired - Lifetime
- 2000-08-18 AU AU68054/00A patent/AU6805400A/en not_active Abandoned
- 2000-08-18 AT AT00955937T patent/ATE429021T1/en active
- 2000-08-18 CN CNB008145245A patent/CN1269149C/en not_active Expired - Fee Related
- 2000-08-18 WO PCT/ZA2000/000140 patent/WO2001013385A1/en active Application Filing
- 2000-08-18 CA CA002420312A patent/CA2420312A1/en not_active Abandoned
-
2003
- 2003-05-12 HK HK03103306A patent/HK1051437A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU6805400A (en) | 2001-03-13 |
| EP1256119B1 (en) | 2009-04-15 |
| HK1051437A1 (en) | 2003-08-01 |
| EP1256119A1 (en) | 2002-11-13 |
| CN1379907A (en) | 2002-11-13 |
| ATE429021T1 (en) | 2009-05-15 |
| WO2001013385A1 (en) | 2001-02-22 |
| DE60042033D1 (en) | 2009-05-28 |
| CA2420312A1 (en) | 2001-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060809 Termination date: 20120818 |