CN208954774U - A kind of variable leakage inductance LLC switching mode power supply transformer - Google Patents
A kind of variable leakage inductance LLC switching mode power supply transformer Download PDFInfo
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- CN208954774U CN208954774U CN201821890033.8U CN201821890033U CN208954774U CN 208954774 U CN208954774 U CN 208954774U CN 201821890033 U CN201821890033 U CN 201821890033U CN 208954774 U CN208954774 U CN 208954774U
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- wire casing
- leakage inductance
- installation position
- power supply
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Abstract
The utility model discloses a kind of variable leakage inductance LLC switching mode power supply transformers, including skeleton, primary wire casing and secondary wire casing, the skeleton, which is equipped with, carves threaded primary wire casing installation position and secondary wire casing installation position, there is spacer region between the primary wire casing installation position and secondary wire casing installation position, primary wire casing screws on primary wire casing installation position, secondary wire casing screws on secondary wire casing installation position, winds copper wire respectively on primary wire casing and secondary wire casing.The utility model installs primary wire casing and secondary wire casing with screw-type, position is conveniently adjusted, to realize the adjustment of the leakage inductance size of transformer.
Description
Technical field
The utility model relates to switching mode power supply transformer technical field more particularly to a kind of variable leakage inductance LLC Switching Power Supplies
Transformer.
Background technique
LLC Switching Power Supply is widely used in being leading with electronic computer with small-sized, light weight and efficient feature
The almost all of electronic equipment such as various terminal equipment, communication equipment is that current electronics and information industry rapid development is indispensable
A kind of electric source topology.It is well known that the core of LLC Switching Power Supply is transformer, the leakage inductance of transformer will directly influence one
The performance of a LLC Switching Power Supply.It, all can be conventional using leakage inductance as first requirement when being typically designed LLC switching mode power supply transformer
Method is exactly to add barricade, with different multi cord coilings etc., has not only wasted the space of transformer preciousness, but also be difficult to control transformer
Leakage inductance consistency.
The leakage inductance of transformer is that the magnetic line of force caused by coil cannot all pass through secondary coil, therefore generate the inductance of leakage field
Referred to as leakage inductance.Leakage inductance is an important indicator of LLC switching mode power supply transformer, and the influence to LLC Switching Power Supply performance indicator is very
Greatly, in LLC switching power supply structure, the inductance of capacitor and transformer coil in leakage inductance and circuit forms oscillation circuit, makes
Circuit generates resonance oscillations.Inappropriate leakage inductance can cause LLC switch power efficiency low, while also will cause very big electromagnetism
Interference, has very big hidden danger to terminal device.
Existing LLC switching mode power supply transformer is fixedly installed with primary line on skeleton as shown in Fig. 1, including skeleton 1
Slot 2 and secondary wire casing 3, the distance between primary wire casing 2 and secondary wire casing 3 be it is fixed, it is immutable.Transformer once around
It makes, leakage inductance also determines that, can not change, this is not obviously able to satisfy the requirement of LLC switching mode power supply transformer.General rectification
Method is exactly to add one layer of barricade among transformer, or change primary and secondary line footpath size, this is both difficult to grasp in reality production
Make, and is difficult to ensure consistency.Production difficulty is not only increased, production efficiency is also reduced.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of variable leakage inductance LLC switching mode power supply transformers, convenient for adjusting
The position of whole primary wire casing and secondary wire casing, so as to adjust the size of transformer leakage inductance, operation is more flexible, improves the general of production
All over adaptability.
In order to solve the above-mentioned technical problem, the utility model takes following technical scheme:
A kind of variable leakage inductance LLC switching mode power supply transformer, including skeleton, primary wire casing and secondary wire casing, on the skeleton
Equipped with quarter threaded primary wire casing installation position and secondary wire casing installation position, the primary wire casing installation position and secondary wire casing installation position
Between there is spacer region, primary wire casing screws on primary wire casing installation position, and secondary wire casing is screwed mounted in secondary wire casing installation
On position, copper wire is wound respectively on primary wire casing and secondary wire casing.
The spacer region is equipped with graduation apparatus.
The skeleton be bakelite or plastic cement skeleton, the skeleton with a thickness of 0.3-0.9mm.
The size of the primary wire casing and secondary wire casing is same or different.
The primary wire casing and secondary wire casing are made of bakelite or plastic material, and the primary wire casing and secondary wire casing
With a thickness of 0.2-0.5mm.
The primary wire casing and secondary wire casing are fixed after being installed in setting position by dispensing.
The features such as the utility model has structure simple, easy to operate, can effectively ensure that LLC switching mode power supply transformer
Leakage inductance meet actual requirement, while there is good consistency.So that Switching Power Supply safe and highly efficient operation, improves terminal and sets
Standby reliability.
Detailed description of the invention
Attached drawing 1 is transformer device structure schematic diagram in the prior art；
Attached drawing 2 is the schematic front view in the utility model；
Attached drawing 3 is the skeleton schematic diagram of the utility model；
Attached drawing 4 is the status diagram that interval adjustment becomes smaller between the utility model primary wire casing and secondary wire casing；
Attached drawing 5 is the status diagram that interval adjustment becomes larger between the utility model primary wire casing and secondary wire casing.
Specific embodiment
For the feature, technological means and specific purposes achieved, function that can further appreciate that the utility model, below
The utility model is described in further detail in conjunction with attached drawing and specific embodiment.
As shown in Fig. 2 and 3, the utility model discloses a kind of variable leakage inductance LLC switching mode power supply transformer, including skeleton
1, primary wire casing 2 and secondary wire casing 3, the skeleton 1, which is equipped with, carves threaded primary wire casing installation position 5 and secondary wire casing installation
Position 6, has spacer region between the primary wire casing installation position 5 and secondary wire casing installation position 6, primary wire casing 2 is screwed mounted in primary line
On slot installation position 5, secondary wire casing 3 is screwed on secondary wire casing installation position 6, winds copper respectively on primary wire casing and secondary wire casing
Line.Since primary wire casing and secondary wire casing are threadably to be assemblied on skeleton, the rotation that can be convenient is rotating
Process in, the position of primary wire casing and secondary wire casing is had adjusted immediately, to change between primary wire casing and secondary wire casing
Spacing distance, also just change the leakage inductance of transformer, be conducive to improve production universal adaptability, improving production efficiency.
The spacer region is equipped with graduation apparatus 4, reference numerals on the graduation apparatus, convenient for checking specific location.Usual scale
Table is the center that skeleton is arranged in.
The skeleton be bakelite or plastic cement skeleton, the skeleton with a thickness of 0.3-0.9mm.Primary wire casing and secondary wire casing
Size is same or different.Primary wire casing and secondary wire casing are made of bakelite or plastic material, and the primary wire casing and secondary
Wire casing with a thickness of 0.2-0.5mm.
It in use, as shown in Fig. 4, can be by primary wire casing and secondary wire casing when transformer leakage inductance is too big
Moving in rotation among to skeleton makes the spacing distance between primary wire casing and secondary wire casing shorten, so that the leakage of transformer
Sense becomes smaller, and when being moved to a certain scale leakage inductance and meeting the requirements, records current scale and dispensing is fixed, and when batch production only needs
It is directed at this scale.Conversely, primary wire casing and secondary wire casing can be rotated to both sides and be moved when transformer leakage inductance is too small
It is dynamic, as shown in Fig. 5, so that the spacing distance of primary wire casing and secondary wire casing is elongated, so the leakage inductance of transformer can become larger, when
It when being moved to a certain scale leakage inductance and meeting the requirements, records current scale and dispensing is fixed, when batch production need to only be aligned this moment
Degree.It when moving, can only mobile primary wire casing perhaps secondary wire casing or primary wire casing mobile simultaneously and secondary wire
Slot.
Through the above structure, the leakage inductance that can easily adjust each transformer, meets LLC switching mode power supply transformer pair
The various requirement of leakage inductance.Mass production difficulty is reduced simultaneously, improves batch production efficiency.
It should be noted that it is practical new to be not limited to this above is only the preferred embodiment of the utility model
Type, although the utility model is described in detail referring to embodiment, for those skilled in the art, still
It can modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features,
But within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in
Within the protection scope of the utility model.
Claims (6)
1. a kind of variable leakage inductance LLC switching mode power supply transformer, including skeleton, primary wire casing and secondary wire casing, which is characterized in that institute
It states skeleton and is equipped with quarter threaded primary wire casing installation position and secondary wire casing installation position, the primary wire casing installation position and secondary wire
There is spacer region, primary wire casing screws on primary wire casing installation position, and secondary wire casing is screwed mounted in secondary between slot installation position
On wire casing installation position, copper wire is wound respectively on primary wire casing and secondary wire casing.
2. variable leakage inductance LLC switching mode power supply transformer according to claim 1, which is characterized in that set on the spacer region
There is graduation apparatus.
3. variable leakage inductance LLC switching mode power supply transformer according to claim 2, which is characterized in that the skeleton is bakelite
Or plastic cement skeleton, the skeleton with a thickness of 0.3-0.9mm.
4. variable leakage inductance LLC switching mode power supply transformer according to claim 3, which is characterized in that it is described primary wire casing and
The size of secondary wire casing is same or different.
5. variable leakage inductance LLC switching mode power supply transformer according to claim 4, which is characterized in that it is described primary wire casing and
Secondary wire casing is made of bakelite or plastic material, and the primary wire casing and secondary wire casing with a thickness of 0.2-0.5mm.
6. variable leakage inductance LLC switching mode power supply transformer according to claim 5, which is characterized in that it is described primary wire casing and
Secondary wire casing is fixed after being installed in setting position by dispensing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890033.8U CN208954774U (en) | 2018-11-16 | 2018-11-16 | A kind of variable leakage inductance LLC switching mode power supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890033.8U CN208954774U (en) | 2018-11-16 | 2018-11-16 | A kind of variable leakage inductance LLC switching mode power supply transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208954774U true CN208954774U (en) | 2019-06-07 |
Family
ID=66744771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821890033.8U Active CN208954774U (en) | 2018-11-16 | 2018-11-16 | A kind of variable leakage inductance LLC switching mode power supply transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208954774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029105A (en) * | 2019-12-26 | 2020-04-17 | 杭州普晶电子科技有限公司 | Integrated integrated LLC main transformer |
-
2018
- 2018-11-16 CN CN201821890033.8U patent/CN208954774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029105A (en) * | 2019-12-26 | 2020-04-17 | 杭州普晶电子科技有限公司 | Integrated integrated LLC main transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A variable leakage inductance LLC switching power transformer Effective date of registration: 20220530 Granted publication date: 20190607 Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area Pledgor: GUANGZHOU KAIHUI ELECTRONICS CO.,LTD. Registration number: Y2022440000106 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230830 Granted publication date: 20190607 Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area Pledgor: GUANGZHOU KAIHUI ELECTRONICS CO.,LTD. Registration number: Y2022440000106 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |