CN202549574U - Transformer - Google Patents
Transformer Download PDFInfo
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- CN202549574U CN202549574U CN2011205127335U CN201120512733U CN202549574U CN 202549574 U CN202549574 U CN 202549574U CN 2011205127335 U CN2011205127335 U CN 2011205127335U CN 201120512733 U CN201120512733 U CN 201120512733U CN 202549574 U CN202549574 U CN 202549574U
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- transformer
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- side winding
- pin
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Abstract
The utility model discloses a transformer which comprises a skeleton, a magnetic core, a primary side winding and a secondary side winding. The primary side winding and the secondary side winding are respectively wound on the skeleton; primary side pins and secondary side pins are arranged on the skeleton; the free ends of the primary side winding are respectively and correspondingly connected with the primary side pins; the free ends of the secondary side winding are respectively and correspondingly connected with the secondary side pins; one of the free ends of the primary side winding is connected with one primary side pin to reserve a wire tail section; and the wire tail section is connected with the magnetic core. According to the transformer disclosed by the embodiment of the utility model, the structure is simple; the production process is simplified; and the cost is low.
Description
Technical field
The utility model relates to a kind of transformer.
Background technology
Small-sized transformer is usually used in converting into low-voltage direct such as interchange, high pressure civil power, uses for some low power equipment.The test of transformer on EMC (Electro Magnetic Compatibility) at present is an important indicator weighing transformer.EMC comprises the content of two aspects: i.e. EMI (electromagnetic interference) and EMS (electromagnetic susceptibility).Transformer is very big problem (permitting 20% bad existence usually) in the EMC test always, the difficulty of visible this problem.General transformer analysis from the market is in order to reach the test request of EMC, except adding a large amount of inner shields; Also externally add tinned wire, Copper Foil etc., also have antimagnetic material layers such as on magnetic core, coating Copper Foil, and need to add separately again the lead of tinned wire and so on; Through lead the antimagnetic material layer is connected with pin; Increase a large amount of technologies like this, make transformer device structure complicated, produces loaded down with trivial details, the cost increase.
The utility model content
The utility model is intended to one of solve the problems of the technologies described above at least.For this reason, a purpose of the utility model is to propose a kind of transformer, and this transformer device structure is simple, and production technology is simplified, and cost is low.
Transformer according to the utility model; Comprise: skeleton, magnetic core, first side winding and secondary side winding; Said first side winding and secondary side winding are wound on respectively on the said skeleton; Said skeleton is provided with primary side pin and secondary side pin, and the free end of said first side winding links to each other with said primary side pin respectively accordingly, and the free end of said secondary side winding links to each other with said secondary side pin respectively accordingly; Free end in the free end of said first side winding with reserve the line rear after a primary side pin is connected, said line rear links to each other with said magnetic core.
Transformer according to the utility model; Through with free end in the free end of first side winding with the line rear of reserving after a primary side pin is connected and this line rear is linked to each other with magnetic core; Can realize shielding; Reduced operation and the material for the extra increase of magnetic core ground connection such as the outside Copper Foil of transformer, tinned wire, transformer device structure is simple simultaneously, cost is low, has improved security of products, production efficiency and product yield; Improved the Electromagnetic Compatibility of transformer in electronic circuit, reduced the electromagnetic interference (EMI) of electronic equipment on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
Alternatively, a said primary side pin is lower margin, electronegative potential pin or high potential pin.
Transformer according to the utility model also comprises shielding part, and said shielding part is located between said first side winding and the said secondary side winding.Through shielding part is set, can increase the effectiveness of transformer, further improve the Electro Magnetic Compatibility of transformer.
Alternatively, said shielding part is Copper Foil or enamelled wire.Thus, easy to use and shield effectiveness good.
Further, said Copper Foil link to each other through one in shielded lead and the said primary side pin or the free end of said enamelled wire and a said pin in one link to each other.Further improved the Electro Magnetic Compatibility of transformer thus.
According to the utility model, the free end of said shielded lead or said enamelled wire links to each other with the primary side pin that said line rear is connected.Thus, improved the electromagnetic shielding and the Electro Magnetic Compatibility of transformer, further reduced the electromagnetic interference of electronic equipment on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
In the utility model, the free end of said line rear is fastened on the said magnetic core through adhesive tape.Therefore, line rear and magnetic core is easy to connect, simple and reliable.
Further, the free end of said line rear is fastened on the outer peripheral face of said magnetic core.Further improved property easy to connect thus.
According to the utility model, said line rear is the 2-20 millimeters long.Make things convenient for thus the line rear is connected on the magnetic core, and handling safety.
Transformer according to the utility model; Through with free end in the free end of first side winding with reserve the line rear after a primary side pin is connected, the line rear links to each other with magnetic core, between first side winding and secondary side winding, shielding part is set alternatively simultaneously; For example Copper Foil or enamelled wire; Copper Foil links to each other with a primary side pin through the free end of shielded lead or enamelled wire, makes shielding part and magnetic core ground connection to realize shielding, is convenient to improve the Electro Magnetic Compatibility of transformer in electronic circuit; Reduced the electromagnetic interference of electronic equipment on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side; And transformer device structure is simple, and production technology is simplified, and cost is low.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the schematic perspective view according to the transformer of the utility model embodiment;
Fig. 2 is another schematic perspective view of transformer shown in Figure 1;
Fig. 3 is the cutaway view of transformer shown in Figure 1;
Fig. 4 is the front view according to the transformer of another embodiment of the utility model;
Fig. 5 is the sketch map according to the skeleton of the transformer of the utility model embodiment; With
Fig. 6 is the schematic flow sheet according to the manufacturing approach of the transformer of the utility model embodiment.
Embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; Term " length ", " width ", " thickness ", " on ", the orientation of indications such as D score, " preceding ", " back ", " left side ", " right side ", " top ", " end " " interior ", " outward " or position relation be for based on orientation shown in the drawings or position relation; Only be to describe with simplifying for the ease of describing the utility model; Rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more a plurality of these characteristics can be shown or impliedly comprised to the characteristic that is limited with " first ", " second " clearly.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
Following with reference to the transformer 100 of figure 1-Fig. 5 description according to the utility model embodiment; Transformer 100 according to the utility model embodiment for example is used for converting into low-voltage direct such as normally used interchange, high pressure civil power, uses for some low power equipment (for example charger for mobile phone).
Transformer 100 according to the utility model embodiment comprises: skeleton 1, magnetic core 2, first side winding 6 and secondary side winding 7.
Particularly, first side winding 6 is wound on respectively on the skeleton 1 with secondary side winding 7, and skeleton 1 is provided with primary side pin 3 and secondary side pin 4, and the free end of first side winding 6 (scheming not shown) links to each other with primary side pin 3 respectively accordingly.The free end of secondary side winding 7 (scheming not shown) links to each other with secondary side pin 4 respectively accordingly.Free end in the free end of first side winding 6 with reserve line rear 5 after primary side pin 3a is connected, line rear 5 links to each other with magnetic core 2.To be exactly free end of a winding 6 extend predetermined length with reserving from primary side pin 3a after primary side pin 3a is connected to so-called line rear 5.In some embodiment of the utility model, above-mentioned primary side pin 3a can be lower margin, electronegative potential pin or high potential pin.
Transformer 100 according to the utility model embodiment; Through free end in the free end of first side winding 6 is linked to each other with magnetic core 2 with the line rear of reserving after primary side pin 3a is connected 5, realize shielding, for example; Realize magnetic core 2 ground connection; Reduced operation and the material for the extra increase of magnetic core 2 ground connection such as the outside Copper Foil of transformer, tinned wire thus, transformer is 100 simple in structure, cost is low, has improved security of products, production efficiency and product yield.Improved the Electromagnetic Compatibility of transformer 100 in electronic circuit, reduced the electromagnetic interference (EMI) of electronic equipment on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
According to an embodiment of the utility model, transformer 100 also comprises shielding part (scheming not shown), and shielding part is located between first side winding 6 and the secondary side winding 7.Thus, further improve the effectiveness of transformer 100, improve the Electro Magnetic Compatibility of transformer 100.For example, shielding part can Copper Foil or enamelled wire (promptly shielding winding).Thus, the shielding part of Copper Foil or enamelled wire form, easy to use and shield effectiveness good, cost is low, is convenient to be provided with.
In a preferred embodiment of the utility model, Copper Foil links to each other through one in shielded lead (scheming not shown) and the primary side pin 3, and perhaps in the free end of said enamelled wire and the primary side pin 3 links to each other.Preferably, the free end of shielded lead or enamelled wire links to each other with a primary side pin 3a.In other words; Primary side pin 3a not only links to each other with shielded lead or enamelled wire; Simultaneously with the free end of first side winding 6 in a free end be connected and reserve line rear 5, line rear 5 links to each other with magnetic core 2, makes Copper Foil or enamelled wire (promptly shielding winding) link to each other and ground connection with magnetic core 2; The electromagnetic shielding and the Electro Magnetic Compatibility of transformer 100 have been improved; Further reduced the electromagnetic interference of electronic equipment on every side and improved, and shielding is simple, need not to be provided with extra outside Copper Foil, tinned wire the noise immunity of the electromagnetic interference of electronic equipment on every side.
According to an embodiment of the utility model, the free end of line rear 5 is fastened on the magnetic core 2 through adhesive tape, and line rear 5 is connected very convenient, reliable and simple with magnetic core 2 thus.The free end of concrete ground wire rear 5 is fastened on the outer peripheral face of magnetic core 2, has further improved the convenience that connects.
In an embodiment of the utility model, line rear 5 is the 2-20 millimeters long, and the handled easily personnel are connected to line rear 5 on the magnetic core 2, and handling safety.
According to the transformer 100 of the utility model embodiment, through with free end in the free end of first side winding 6 with reserve line rear 5 after primary side pin 3a is connected, line rear 5 links to each other with magnetic core 2; Alternatively; Between first side winding 6 and secondary side winding 7, shielding part is set, for example Copper Foil or enamelled wire, Copper Foil links to each other with primary side pin 3a through the free end of shielded lead or enamelled wire; Make shielding part and magnetic core 2 ground connection to realize shielding; Be convenient to improve the Electro Magnetic Compatibility of transformer 100 in electronic circuit, reduced the electromagnetic interference of electronic equipment on every side and improved, and transformer 100 is simple in structure the noise immunity of the electromagnetic interference of electronic equipment on every side; Production technology is simplified, and cost is low.
Following with reference to the manufacture process of figure 1-Fig. 6 description according to the transformer of the utility model embodiment.
Manufacture process according to the transformer of the utility model embodiment comprises the steps:
First side winding 6 and secondary side winding 7 are wound on respectively on the skeleton 1, the free end of first side winding 6 are connected to the primary side pin 3 on the skeleton 1 accordingly, and the free end of secondary side winding 7 is connected to the secondary side pin 4 on the skeleton 1 accordingly.
With free end in the free end of first side winding 6 with reserve line rear 5 after primary side pin 3a is connected.
Line rear 5 is linked to each other with magnetic core 2.
According to the manufacturing approach of the transformer of the utility model embodiment, reserve line rear 5 and line rear 5 is linked to each other with magnetic core 2 through a free end that makes first side winding 6, make magnetic core 2 ground connection to realize shielding.Therefore, the manufacturing of transformer 100 is simple, and processing step is simplified; Reduced cost; Improved production efficiency, and improved the Electro Magnetic Compatibility of transformer 100, reduced the electromagnetic interference of electronic equipment on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
According to an embodiment of the utility model, the free end of line rear 5 is fastened on the magnetic core 2 through adhesive tape, and line rear 5 is connected very convenient, reliable and simple with magnetic core 2 thus.Preferably, the free end of line rear 5 is fastened on the outer peripheral face of magnetic core 2, simple to operate and safety.
In an embodiment of the utility model, line rear 5 is the 2-20 millimeters long, and the handled easily personnel are connected to line rear 5 on the magnetic core 2, and handling safety.
An embodiment according to the utility model also is included in the manufacturing approach of transformer between first side winding 6 and the secondary side winding 7 shielding part is set, and further improves the shield effectiveness of transformer 100.For example, shielding part can be Copper Foil or enamelled wire.
Preferably, the manufacturing approach of transformer also comprises through shielded lead and linking to each other with Copper Foil or with one in the free end of enamelled wire and the primary side pin 3, can further improve the Electro Magnetic Compatibility of transformer 100 so that Copper Foil or enamelled wire ground connection.
Particularly, shielded lead or enamelled wire link to each other with primary side pin 3a.At this moment; Primary side pin 3a not only links to each other with shielded lead, simultaneously with the free end of first side winding 6 in a free end be connected and reserve line rear 5, line rear 5 links to each other with magnetic core 2; Make Copper Foil or enamelled wire and magnetic core 2 ground connection simultaneously; Realized the electromagnetic shielding of transformer 100, thereby improved the Electro Magnetic Compatibility of transformer 100, further reduced the electromagnetic interference of electronic equipment on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
According to the manufacturing approach of the transformer 100 of the utility model embodiment, technology is simple, and cost is low, and the transformer shield effectiveness that obtains is good, has improved Electro Magnetic Compatibility.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is limited claim and equivalent thereof.
Claims (9)
1. a transformer is characterized in that, comprising: skeleton; Magnetic core; First side winding and secondary side winding, said first side winding and secondary side winding are wound on respectively on the said skeleton, and said skeleton is provided with primary side pin and secondary side pin; The free end of said first side winding links to each other with said primary side pin respectively accordingly; The free end of said secondary side winding links to each other with said secondary side pin respectively accordingly, free end in the free end of said first side winding with reserve the line rear after a primary side pin is connected, said line rear links to each other with said magnetic core.
2. transformer according to claim 1 is characterized in that, a said primary side pin is lower margin, electronegative potential pin or high potential pin.
3. transformer according to claim 1 is characterized in that, also comprises shielding part, and said shielding part is located between said first side winding and the said secondary side winding.
4. transformer according to claim 3 is characterized in that, said shielding part is Copper Foil or enamelled wire.
5. transformer according to claim 4 is characterized in that, said Copper Foil link to each other through one in shielded lead and the said primary side pin or the free end of said enamelled wire and a said pin in one link to each other.
6. transformer according to claim 5 is characterized in that, the free end of said shielded lead or said enamelled wire links to each other with the primary side pin that said line rear is connected.
7. transformer according to claim 1 is characterized in that the free end of said line rear is fastened on the said magnetic core through adhesive tape.
8. transformer according to claim 7 is characterized in that the free end of said line rear is fastened on the outer peripheral face of said magnetic core.
9. transformer according to claim 1 is characterized in that, said line rear is the 2-20 millimeters long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205127335U CN202549574U (en) | 2011-12-09 | 2011-12-09 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205127335U CN202549574U (en) | 2011-12-09 | 2011-12-09 | Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549574U true CN202549574U (en) | 2012-11-21 |
Family
ID=47170166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205127335U Expired - Lifetime CN202549574U (en) | 2011-12-09 | 2011-12-09 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165277A (en) * | 2011-12-09 | 2013-06-19 | 比亚迪股份有限公司 | Transformer and manufacturing method thereof |
-
2011
- 2011-12-09 CN CN2011205127335U patent/CN202549574U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165277A (en) * | 2011-12-09 | 2013-06-19 | 比亚迪股份有限公司 | Transformer and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |