CN101042958A - Transformer and iron core set thereof - Google Patents
Transformer and iron core set thereof Download PDFInfo
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- CN101042958A CN101042958A CN 200610068001 CN200610068001A CN101042958A CN 101042958 A CN101042958 A CN 101042958A CN 200610068001 CN200610068001 CN 200610068001 CN 200610068001 A CN200610068001 A CN 200610068001A CN 101042958 A CN101042958 A CN 101042958A
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- iron core
- transformer
- protuberance
- drum stand
- winding region
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Abstract
The invention provides a transformer that mainly comprises a bobbin, the first iron core and the second iron core, the bobbin possesses a primary coiling area and a secondary coiling area, the first iron core is set through the bobbin, the second iron core is mounted on the bobbin, and the second iron core possesses the first protruding part which bestraddles the bobbin, and the second protruding part which is formed integrally on the second iron core and between the first protruding part, and the second protruding part is between the primary coiling area and a secondary coiling area.
Description
Technical field
The present invention relates to a kind of transformer and iron core group thereof, particularly relate to a kind of transformer whose drain inductance and iron core group thereof of improving.
Background technology
Along with display reducing of required thickness more and more, therefore the stable advantage such as do not glimmer of LCD (LCD), image quality little by thickness at present has the trend that replaces conventional cathode ray tube (CRT) gradually; And in liquid crystal display equipment screen, has a backlight module, and also include the cold cathode fluorescent lamp of high drive in this backlight module, with as the light source of back light system to show, this kind fluorescent tube is generally driven by converter (inverter), its inside also includes high-tension transformer to form except having drive circuit.
Although the thickness of LCD cathode ray tube was little more in the past a lot, it is to be the bigger the better that yet the consumer requires on the contrary for the size of screen, therefore, the cold cathode fluorescent lamp of LCD inside promptly must be more and more longer, and because the increasing of size, the increase of drain capacitance will be caused, but, transformer reduces the wastage because being coupling by leakage inductance and drain capacitance, just can reach effects such as whole efficiency raising, lamp tube current balance, therefore under the situation that improves drain capacitance, also must arrange in pairs or groups and improve the technology of leakage inductance.
See also shown in Figure 1A and Figure 1B, existing first kind of transformer 1 is made up of a drum stand 10 and two iron cores 20, wherein this drum stand 10 has an elementary winding region 11 and two secondary rolling thread districts 12, this elementary winding region 11 is positioned at the stage casing of this drum stand 10, these two secondary rolling thread districts 12 then are the both sides that are positioned at this elementary winding region 11, in addition, this drum stand 10 is axially arranged with a perforation 13; This two iron core 20 is the E font, and this two iron core 20 all utilizes a protuberance 21 of central authorities and is inserted in this perforation 13 by the both sides of this drum stand 10; Moreover; more be arranged with a lid 14 on this drum stand 10 in addition; this lid 14 is made by the insulation material; its external form matches with this drum stand 10 approximately and can be sheathed on this drum stand 10; mainly be wound in a primary coil (not shown) and two secondary coil (not shown) in this elementary winding region 11 and this two secondary rolling thread districts 12 in order to protection; in addition, also being axially arranged with a perforation 141 these protuberances 21 for this two iron core 20 on this lid 14 wears.
The air gap A (shown in Figure 1A) of above-mentioned first kind of transformer 1 is formed on the contact area of two arms 22 of this two iron core 20, and the adjustment of the leakage inductance of this type of transformer 1, only can rely on the distance or the number of turns adjusted between this primary coil and this secondary coil, but will make the space of those winding regions 11,12 to strengthen thus, related this two iron core 20 also needs elongated, makes the volume of this transformer 1 become big on the contrary; Moreover, if be reluctant to change the space of those winding regions 11,12, change on the contrary to dwindle coiling line when footpath, will cause the rising of temperature again, many disappearances, real non-can meeting do not produce the person now or the consumer is desired, so the space of improvement is arranged.
Please consult again shown in Fig. 2 A and Fig. 2 B, existing second kind of transformer 2 is made up of a drum stand 10, one first iron core 30 and one second iron core 40, wherein this drum stand 10 has an elementary winding region 11 and two secondary rolling thread districts 12, this elementary winding region 11 is positioned at the stage casing of this drum stand 10, these two secondary rolling thread districts 12 then are the both sides that are positioned at this elementary winding region 11, in addition, this drum stand 10 is axially arranged with a perforation 13; More be arranged with a lid 14 on this drum stand 10, it is made by the insulation material, and its external form matches with this drum stand 10 approximately and can be sheathed on this drum stand 10, mainly be wound in a primary coil (not shown) and two secondary coil (not shown) in this elementary winding region 11 and this two secondary rolling thread districts 12, and this lid 14 also is provided with a perforation 141 in order to protection; This first iron core 30 is the I font and is arranged in this perforation 13 of this drum stand 10 and this perforation 141 of this lid 14; This second iron core 40 is frame type, and it is sheathed on this lid 14, and the both sides of this second iron core 40 have two protuberances 41 that tangent plane is the ㄇ font respectively.
The air gap B of above-mentioned second kind of transformer 2 (shown in Fig. 2 A) results between this two protuberance 41 of this first iron core 30 and this second iron core 40, the adjustment of its leakage inductance, only can rely on the size of adjusting this air gap, adjust the distance or the number of turns between this primary coil and this secondary coil, but also will cause many disappearances of aforementioned first kind of transformer thus, yet non-can meeting do not produce the person now or the consumer is desired, so You Tao Make-obsolete or improved necessity in addition again.
Summary of the invention
Because above-mentioned problem, the object of the present invention is to provide a kind of transformer and iron core group thereof, this transformer is by at least one protuberance of obstruct that this iron core group is extended between primary coil and secondary coil, can change the quantity of magnetic circuit, thereby increase leakage inductance to mate with drain capacitance, thus, can improve existing transformer and desire to heighten the disappearance that leakage inductance must increase volume or increase wire circle.
For reaching above-mentioned purpose, the present invention discloses a kind of transformer, and it mainly is made up of a drum stand, one first iron core and one second iron core, and this drum stand has an elementary winding region and a level winding region; This first iron mandrel is in being arranged in this drum stand; This second iron core then is sheathed on this drum stand, and this second iron core has respectively one first protuberance across these drum stand both sides, and be shaped in one second protuberance on this second iron core and between this first protuberance, and this second protuberance is between this elementary winding region and this secondary rolling thread district.
For reaching above-mentioned purpose, the present invention discloses a kind of iron core group, it is located on the drum stand with an elementary winding region and a level winding region, it comprises an iron core, has respectively one first protuberance across these drum stand both sides, and be shaped in one second protuberance on this iron core and between this first protuberance, and this second protuberance is between this elementary winding region and this secondary rolling thread district.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Figure 1A is the composition schematic diagram of first kind of existing transformer;
Figure 1B is the decomposing schematic representation of first kind of existing transformer;
Fig. 2 A is the composition schematic diagram of second kind of existing transformer;
Fig. 2 B is the decomposing schematic representation of second kind of existing transformer;
Fig. 3 A is the composition schematic diagram of transformer first embodiment of the present invention;
Fig. 3 B is the decomposing schematic representation of transformer first embodiment of the present invention;
Fig. 4 A is the composition schematic diagram of transformer second embodiment of the present invention;
Fig. 4 B is the decomposing schematic representation of transformer second embodiment of the present invention;
Fig. 5 A is the composition schematic diagram of transformer the 3rd embodiment of the present invention;
Fig. 5 B is the decomposing schematic representation of transformer the 3rd embodiment of the present invention.
The main element symbol description:
1 transformer, 2 transformers
3 transformers, 4 transformers
5 transformers
10 drum stands, 11 elementary winding regions
13 perforation of 12 secondary rolling thread districts
141 perforation of 14 lids
151 perforation of 15 lids
152 open-works
20 iron cores, 21 protuberances
22 arms
30 first iron cores
40 second iron cores, 41 protuberances
50 second iron cores, 51 first protuberances
52 second protuberances, 53 open-works
60 second iron cores, 61 first protuberances
62 second protuberances, 63 open-works
70 drum stands, 71 elementary winding regions
73 perforation of 72 secondary rolling thread districts
80 second iron cores, 81 first protuberances
82 second protuberances, 83 open-works
A air gap B air gap
The C air gap
Embodiment
See also shown in Fig. 3 A and Fig. 3 B, be first preferred embodiment of transformer of the present invention, wherein this transformer 3 is made up of a drum stand 10 and an iron core group, and wherein this iron core group also comprises one first iron core 30 and one second iron core 50.This drum stand 10 has an elementary winding region 11 and two secondary rolling thread districts 12, this elementary winding region 11 is positioned at the stage casing of this drum stand 10, these two secondary rolling thread districts 12 then are positioned at the both sides of this elementary winding region 11, this elementary winding region 11 can twine for one group or two groups of primary coil (not shown), and twine for one group of secondary coil (not shown) respectively in those secondary rolling thread districts 12, in addition, this drum stand 10 is axially arranged with a perforation 13; This first iron core 30 is the I font and is arranged in this perforation 13 of this drum stand 10; This second iron core 50 is sheathed on this drum stand 10, and this second iron core 50 has respectively one first protuberance 51 across these drum stand both sides, and be shaped on this second iron core 50 and two second protuberances 52 between this first protuberance 51, and these two second protuberances 52 are between this elementary winding region 11 and this two secondary rolling thread districts 12.
Moreover this second iron core 50 also includes three open-works 53 that are formed between this first protuberance 51 and this two second protuberances 52, so makes this second iron core 50 be " order " font; In addition, the width of this first protuberance 51 greater than, be equal to or less than the width (as shown be greater than) of these two second protuberances 52, and the tangent plane of this first protuberance 51 and these two second protuberances 52 is the ㄇ font, and can and this first iron core 30 between be formed with air gap C (as shown in Figure 3A).
In addition, this first iron core 30 and this second iron core 50 all are the metal magnetic conducting material, preferable enforcement can be by the MnZn material, the nickel Zinc material, Mg-Zn material or silicon steel sheet storehouse are made, when making with MnZn material or silicon steel sheet storehouse, can increase by a lid 15 between this drum stand 10 and this second iron core 50, this lid 15 is by insulation material made (for example being plastics), its external form matches with this drum stand 10 approximately and can be sheathed on this drum stand 10, mainly in order to protect this primary coil and this two secondary coils, then 50 of this second iron cores are sheathed on this lid 15 again; This lid 15 is axially arranged with a perforation 151, when this lid 15 is sheathed on this drum stand 10, this first iron core 30 can be arranged in wherein, in addition, this lid 15 more is provided with two open-works 152 corresponding to these two second protuberances 52 of this second iron core 50, uses for these two second protuberances 52 and passes through this lid 15 and place between this elementary winding region 11 and this two secondary rolling thread districts 12.
What this need remark additionally be, when this second iron core 50 is made with MnZn material or silicon steel sheet storehouse, as long as this elementary winding region 11 and the interval between this two secondary rolling thread districts 12 of this drum stand 10 are increased, can omit the structure of lid, do not explain with diagram in addition at this.
Composition by said structure, this transformer 3 is because this second iron core 50 has increased by two second protuberances 52, therefore make the magnetic circuit of this first iron core 30 and this second iron core 50 change (increasing magnetic circuit quantity), further make the leakage inductance of this transformer 3 promote, so can increase the volume of wire circle or increase transformer again, promptly effectively improve existing disappearance.
Please consult shown in Fig. 4 A and Fig. 4 B again, be second preferred embodiment of transformer of the present invention, wherein this transformer 4 is made up of a drum stand 10, one first iron core 30 and one second iron core 60.In the present embodiment, the structure of this drum stand 10 and this first iron core 30 is all same as the previously described embodiments, so do not give unnecessary details in addition at this.This second iron core 50 of this of present embodiment second iron core 60 and previous embodiment on structure function much at one, also have this first protuberance 61 and this two second protuberances 62, its difference is in present embodiment this second iron core 60 and does not have an open-work, and makes this lid 15 unlikely exposing.
In the present embodiment, this transformer 4 is also because of the setting up of this two second protuberances 62 of this second iron core 60, and makes magnetic circuit change, and reaches the effect that leakage inductance improves.
Please consult shown in Fig. 5 A and Fig. 5 B again, be the 3rd preferred embodiment of transformer of the present invention, wherein this transformer 5 is made up of a drum stand 70, one first iron core 30 and one second iron core 80.This drum stand 10 has an elementary winding region 71 and a level winding region 72, this elementary winding region 71 twines for one group of primary coil (not shown), and twine for one group of secondary coil (not shown) in this secondary rolling thread district 72, and in addition, this drum stand 70 is axially arranged with a perforation 73; This first iron core 30 is the I font and is arranged in this perforation 73 of this drum stand 70; This second iron core 80 is sheathed on this drum stand 70, and this second iron core 80 has respectively one first protuberance 81 across these drum stand 70 both sides, and be shaped in one second protuberance 82 on this second iron core 80 and between this first protuberance 81, and this second protuberance 82 is between this elementary winding region 71 and this secondary rolling thread district 72.
Moreover this second iron core 80 more includes two open-works 83 that are formed between this first protuberance 81 and this second protuberance 82, so makes this second iron core 80 be " day " font; In addition, the width of this first protuberance 81 is greater than the width of this second protuberance 82, and the tangent plane of this first protuberance 81 and this second protuberance 82 is the ㄇ font, and can and this first iron core 30 between be formed with the air gap (not shown).
What this must replenish in addition be, in the present embodiment, if this second iron core 80 is when being made by MnZn material or silicon steel sheet storehouse, can increase by a lid between this drum stand 70 and this second iron core 80, this lid can be made by the insulation material, and external form matches with this drum stand 70 approximately and can be sheathed on this drum stand 70, and the structure of this lid and function and previous described embodiment are roughly the same, so promptly be not illustrated with diagram in addition at this.
In the present embodiment, this transformer 5 is also because of the setting up of this second protuberance 82 of this second iron core 80, and makes magnetic circuit change, and reaches the effect that leakage inductance improves.
In sum, because of complying with a kind of transformer of the present invention and iron core thereof, it is by increasing at least one protuberance that intercepts in primary coil and secondary coil, and changed the quantity of magnetic circuit, further increased the raising of leakage inductance, thus, can make a coupling with the increase of drain capacitance, and reach many effects such as whole efficiency raising, lamp tube current balance, and needn't adopt the existing disappearance technology such as wire circle and increase transformer size of adjusting, so the present invention is a splendid design in fact.
The above only is an example, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim its equivalent modifications of carrying out or change.
Claims (16)
1. transformer, it comprises:
One drum stand has an elementary winding region and at least one secondary rolling thread district;
One first iron core, it is arranged in this drum stand; And
One second iron core, it is sheathed on this drum stand, and this second iron core has respectively one first protuberance across these drum stand both sides, and can be located at one second protuberance between this elementary winding region and this secondary rolling thread district.
2. transformer as claimed in claim 1, wherein this second protuberance is formed in one on this second iron core, and between this first protuberance.
3. transformer as claimed in claim 1, wherein this drum stand comprises two secondary rolling thread districts, and these two secondary rolling thread districts are positioned at the both sides of this elementary winding region respectively.
4. transformer as claimed in claim 3, wherein this second iron core has two second protuberances between this elementary winding region and this two secondary rolling thread districts.
5. transformer as claimed in claim 1, wherein this first iron core is the I font.
6. transformer as claimed in claim 1, wherein this first protuberance of this second iron core and the tangent plane of this second protuberance are the ㄇ font, and in this first iron core is coated on, and be formed with air gap between this first iron core and this second iron core.
7. transformer as claimed in claim 1, wherein this second iron core is day font or is the order font.
8. transformer as claimed in claim 1, wherein this first iron core and second iron core are to be made by MnZn material, nickel Zinc material, Mg-Zn material, metal magnetic conducting material or silicon steel sheet storehouse.
9. transformer as claimed in claim 8, wherein this transformer also comprises a lid, and it is covered on this drum stand, and this second iron core then is covered on this lid.
10. transformer as claimed in claim 9, wherein this lid has an open-work corresponding to this second protuberance, passes through this lid and places between this elementary winding region and this secondary rolling thread district for this second protuberance.
11. transformer as claimed in claim 9, wherein this lid is provided with a perforation, and when this lid was sheathed on this drum stand, this first iron core wore wherein.
12. transformer as claimed in claim 11, wherein this lid is made by insulating material.
13. transformer as claimed in claim 1, wherein the width of this first protuberance greater than, be equal to or less than the width of this second protuberance.
14. transformer as claimed in claim 1, wherein this second iron core comprises at least one open-work, and it is formed between this first protuberance and this second protuberance.
15. transformer as claimed in claim 1 wherein is wound with one group or two groups of primary coils on this elementary winding region.
16. iron core group, be located on the drum stand with an elementary winding region and a level winding region, it comprises an iron core, has respectively one first protuberance across these drum stand both sides, and can be arranged at one second protuberance between this elementary winding region and this secondary rolling thread district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610068001 CN101042958A (en) | 2006-03-23 | 2006-03-23 | Transformer and iron core set thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610068001 CN101042958A (en) | 2006-03-23 | 2006-03-23 | Transformer and iron core set thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101042958A true CN101042958A (en) | 2007-09-26 |
Family
ID=38808363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610068001 Pending CN101042958A (en) | 2006-03-23 | 2006-03-23 | Transformer and iron core set thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101042958A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685702B (en) * | 2008-07-23 | 2013-12-25 | 东京零件工业股份有限公司 | Transformer |
| CN107302298A (en) * | 2016-03-31 | 2017-10-27 | 台达电子企业管理（上海）有限公司 | Power module with two-way or multiple-channel output voltage |
| CN113496804A (en) * | 2020-04-08 | 2021-10-12 | 明纬(广州)电子有限公司 | Resonance transformer structure |
-
2006
- 2006-03-23 CN CN 200610068001 patent/CN101042958A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685702B (en) * | 2008-07-23 | 2013-12-25 | 东京零件工业股份有限公司 | Transformer |
| CN107302298A (en) * | 2016-03-31 | 2017-10-27 | 台达电子企业管理（上海）有限公司 | Power module with two-way or multiple-channel output voltage |
| CN107302298B (en) * | 2016-03-31 | 2023-08-29 | 台达电子企业管理（上海）有限公司 | Power supply module with two or more output voltages |
| CN113496804A (en) * | 2020-04-08 | 2021-10-12 | 明纬(广州)电子有限公司 | Resonance transformer structure |
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