CN203312007U - Alternating-current transformer - Google Patents
Alternating-current transformer Download PDFInfo
- Publication number
- CN203312007U CN203312007U CN2012207087587U CN201220708758U CN203312007U CN 203312007 U CN203312007 U CN 203312007U CN 2012207087587 U CN2012207087587 U CN 2012207087587U CN 201220708758 U CN201220708758 U CN 201220708758U CN 203312007 U CN203312007 U CN 203312007U
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- transformer
- same name
- side winding
- primary side
- pin
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Abstract
The utility model discloses an alternating-current transformer which comprises a framework, a magnetic core, a primary side winding and a secondary side winding, wherein the primary side winding and the secondary side winding are respectively arranged on the framework in a wound mode, the framework is provided with primary side pins and secondary side pins, dotted terminals of the primary side winding are respectively and correspondingly connected with the primary side pins, dotted terminals of the secondary side winding are respectively and correspondingly connected with the secondary side pins, one of the dotted terminals of the primary side winding is connected with one of the primary side pins to keep a line tail section out, and the line tail section is connected with the magnetic core. The alternating-current transformer is simple in structure, simplified in production process and low in cost.
Description
Technical field
The utility model relates to a kind of AC transformer.
Background technology
Small-sized transformer is usually used in interchange, high pressure civil power etc. is converted to low-voltage direct, 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 large problem (usually permitting 20% bad existence), the difficulty of this problem as seen always in the EMC test.General transformer analysis from the market, 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 coating Copper Foil on magnetic core, and need to add separately again the wire of tinned wire and so on, by wire, the antimagnetic material layer is connected with pin, increase so a large amount of technique, make the transformer device structure complexity, produces loaded down with trivial details, the cost increase.
The utility model content
In order to address the above problem a purpose of the present utility model, be to propose a kind of transformer, this transformer device structure is simple, and production technology is simplified, and cost is low.
Technical solution adopted in the utility model is as follows:
A kind of AC transformer, it is characterized in that: this AC transformer comprises skeleton, magnetic core, first side winding, and secondary side winding, described first side winding and secondary side winding are wound on respectively on described skeleton, described skeleton is provided with primary side pin and secondary side pin, the Same Name of Ends of described first side winding is connected with described primary side pin respectively accordingly, the Same Name of Ends of described secondary side winding is connected with described secondary side pin respectively accordingly, Same Name of Ends in the Same Name of Ends of described first side winding with reserve the line rear after a primary side pin is connected, described line rear is connected with described magnetic core.
According to transformer of the present utility model, by Same Name of Ends in the Same Name of Ends by first side winding with the line rear reserved after a primary side pin is connected and this line rear is connected with magnetic core, can realize shielding, reduced the outside Copper Foil of transformer, tinned wires etc. are extra operation and the material increased of magnetic core ground connection, transformer device structure is simple simultaneously, cost is low, improved the fail safe of product, production efficiency and product yield, improved the Electro Magnetic Compatibility (EMC) of transformer in electronic circuit, reduced the electromagnetic interference of electronic equipment (EMI) on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
Alternatively, a described primary side pin is lower margin, electronegative potential pin or high potential pin.
According to transformer of the present utility model, also comprise shielding part, described shielding part is located between described first side winding and described secondary side winding.By shielding part is set, can increase the effectiveness of transformer, further improve the Electro Magnetic Compatibility of transformer.
Alternatively, described shielding part is Copper Foil or enamelled wire.Thus, easy to use and shield effectiveness good.
Further, described Copper Foil by one in shielded lead and described primary side pin, be connected or the Same Name of Ends of described enamelled wire and a described pin in one be connected.Further improved thus the Electro Magnetic Compatibility of transformer.
According to the utility model, the Same Name of Ends of described shielded lead or described enamelled wire is connected with described line rear connected primary side pin.Thus, improved 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 Same Name of Ends of described line rear is fastened on described magnetic core by adhesive tape.Therefore, line rear and magnetic core is easy to connect, simple and reliable.
Further, the Same Name of Ends of described line rear is fastened on the outer peripheral face of described magnetic core.Further improved thus property easy to connect.
According to the utility model, described line rear is the 2-20 millimeters long.Facilitate the line rear is connected on magnetic core thus, and handling safety.
According to transformer of the present utility model, by Same Name of Ends in the Same Name of Ends by first side winding with reserve the line rear after a primary side pin is connected, the line rear is connected with magnetic core, simultaneously between first side winding and secondary side winding, shielding part is set alternatively, for example Copper Foil or enamelled wire, Copper Foil is connected with a primary side pin by the Same Name of Ends of shielded lead or enamelled wire, make shielding part and magnetic core ground connection to realize shielding, be 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, production technology is simplified, cost is low.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
The accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding the description of embodiment, becoming in conjunction with following accompanying drawing, 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 schematic diagram according to the skeleton of the transformer of the utility model embodiment.
Embodiment
Below describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Below by the embodiment be described with reference to the drawings, be exemplary, only be used to explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " length ", " width ", " thickness ", " on ", orientation or the position relationship of the indications such as D score, 'fornt', 'back', " left side ", " right side ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only be used to describing 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 these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, and can be also to removably connect, or one 4 ground connect; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below with reference to Fig. 1-Fig. 5, the transformer 100 according to the utility model embodiment is described, according to the transformer 100 of the utility model embodiment, such as for normally used interchange, high pressure civil power etc. is converted to low-voltage direct, for example, use for some low power equipment (charger for mobile phone).
According to the transformer 100 of the utility model embodiment, comprise: skeleton 1, magnetic core 2, first side winding 6 and secondary side winding 7.
Particularly, first side winding 6 and secondary side winding 7 are wound on respectively on skeleton 1, and skeleton 1 is provided with primary side pin 3 and secondary side pin 4, and the Same Name of Ends of first side winding 6 (scheming not shown) is connected with primary side pin 3 respectively accordingly.The Same Name of Ends of secondary side winding 7 (scheming not shown) is connected with secondary side pin 4 respectively accordingly.Same Name of Ends in the Same Name of Ends of first side winding 6 with reserve line rear 5 after primary side pin 3a is connected, line rear 5 is connected with magnetic core 2.To be exactly Same Name of Ends 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 embodiment more of the present 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, by Same Name of Ends in the Same Name of Ends by first side winding 6, be connected with magnetic core 2 with the line rear 5 reserved after primary side pin 3a is connected, realize shielding, for example, realize magnetic core 2 ground connection, reduced thus the outside Copper Foil of transformer, tinned wire etc. and be extra operation and the material increased of magnetic core 2 ground connection, transformer 100 is simple in structure, cost is low, has improved fail safe, production efficiency and the product yield of product.Improved the Electro Magnetic Compatibility (EMC) of transformer 100 in electronic circuit, reduced the electromagnetic interference of electronic equipment (EMI) on every side and improved the noise immunity of the electromagnetic interference of electronic equipment on every side.
According to an embodiment of the present utility model, transformer 100 also comprises shielding part (scheming not shown), and shielding part is located between first side winding 6 and 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 (namely 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 arrange.
In a preferred embodiment of the present utility model, Copper Foil is connected by one in shielded lead (scheming not shown) and primary side pin 3, or in the Same Name of Ends of described enamelled wire and primary side pin 3 one is connected.Preferably, the Same Name of Ends of shielded lead or enamelled wire is connected with a primary side pin 3a.In other words, primary side pin 3a not only is connected with shielded lead or enamelled wire, with a Same Name of Ends in the Same Name of Ends of first side winding 6, be connected simultaneously and reserve line rear 5, line rear 5 is connected with magnetic core 2, make Copper Foil or enamelled wire (namely shielding winding) be connected and ground connection with magnetic core 2, 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 the noise immunity of the electromagnetic interference of electronic equipment on every side, and shielding is simple, without extra outside Copper Foil, tinned wire are set.
According to an embodiment of the present utility model, the Same Name of Ends of line rear 5 is fastened on magnetic core 2 by adhesive tape, and line rear 5 is connected very convenient, reliable and simple with magnetic core 2 thus.The Same Name of Ends of concrete ground wire rear 5 is fastened on the outer peripheral face of magnetic core 2, has further improved the convenience connected.
In an embodiment of the present utility model, line rear 5 is the 2-20 millimeters long, and the handled easily personnel are connected to line rear 5 on magnetic core 2, and handling safety.
Transformer 100 according to the utility model embodiment, by Same Name of Ends in the Same Name of Ends by first side winding 6 with reserve line rear 5 after primary side pin 3a is connected, line rear 5 is connected 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 is connected with primary side pin 3a by the Same Name of Ends 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 the noise immunity of the electromagnetic interference of electronic equipment on every side, and transformer 100 is simple in structure, production technology is simplified, cost is low.
Below with reference to Fig. 1-Fig. 5, the manufacture process according to the transformer of the utility model embodiment is described.
According to the manufacture process of the transformer of the utility model embodiment, comprise the steps:
First side winding 6 and secondary side winding 7 are wound on respectively on skeleton 1, the Same Name of Ends of first side winding 6 is connected to the primary side pin 3 on skeleton 1 accordingly, and the Same Name of Ends of secondary side winding 7 is connected to the secondary side pin 4 on skeleton 1 accordingly.
By Same Name of Ends in the Same Name of Ends of first side winding 6 with reserve line rear 5 after primary side pin 3a is connected.
Line rear 5 is connected with magnetic core 2.
Manufacture method according to the transformer of the utility model embodiment, reserve line rear 5 and line rear 5 be connected with magnetic core 2 by a Same Name of Ends that makes first side winding 6, makes magnetic core 2 ground connection to realize shielding.Therefore, the manufacture 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 present utility model, the Same Name of Ends of line rear 5 is fastened on magnetic core 2 by adhesive tape, and line rear 5 is connected very convenient, reliable and simple with magnetic core 2 thus.Preferably, the Same Name of Ends 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 present utility model, line rear 5 is the 2-20 millimeters long, and the handled easily personnel are connected to line rear 5 on magnetic core 2, and handling safety.
According to an embodiment of the present utility model, in the manufacture method of transformer, also be included between first side winding 6 and secondary side winding 7 shielding part is set, further improve the shield effectiveness of transformer 100.For example, shielding part can be Copper Foil or enamelled wire.
Preferably, the manufacture method of transformer also comprises by shielded lead and being connected by Copper Foil or by one in the Same Name of Ends of enamelled wire and primary side pin 3, can so that Copper Foil or enamelled wire ground connection, further improve the Electro Magnetic Compatibility of transformer 100.
Particularly, shielded lead or enamelled wire are connected with primary side pin 3a.Now, primary side pin 3a not only is connected with shielded lead, with a Same Name of Ends in the Same Name of Ends of first side winding 6, be connected simultaneously and reserve line rear 5, line rear 5 is connected 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 manufacture method of the transformer 100 of the utility model embodiment, technique is simple, and cost is low, and the Transformer shielding obtained is effective, 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 to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (9)
1. AC transformer, it is characterized in that: this AC transformer comprises skeleton, magnetic core, first side winding, and secondary side winding, described first side winding and secondary side winding are wound on respectively on described skeleton, described skeleton is provided with primary side pin and secondary side pin, the Same Name of Ends of described first side winding is connected with described primary side pin respectively accordingly, the Same Name of Ends of described secondary side winding is connected with described secondary side pin respectively accordingly, Same Name of Ends in the Same Name of Ends of described first side winding with reserve the line rear after a primary side pin is connected, described line rear is connected with described magnetic core.
2. AC transformer according to claim 1, is characterized in that, a described primary side pin is lower margin, electronegative potential pin or high potential pin.
3. AC transformer according to claim 1, is characterized in that, also comprises shielding part, and described shielding part is located between described first side winding and described secondary side winding.
4. AC transformer according to claim 3, is characterized in that, described shielding part is Copper Foil or enamelled wire.
5. AC transformer according to claim 4, is characterized in that, described Copper Foil by one in shielded lead and described primary side pin, be connected or the Same Name of Ends of described enamelled wire and a described pin in one be connected.
6. AC transformer according to claim 5, is characterized in that, the Same Name of Ends of described shielded lead or described enamelled wire is connected with described line rear connected primary side pin.
7. AC transformer according to claim 1, is characterized in that, the Same Name of Ends of described line rear is fastened on described magnetic core by adhesive tape.
8. AC transformer according to claim 7, is characterized in that, the Same Name of Ends of described line rear is fastened on the outer peripheral face of described magnetic core.
9. AC transformer according to claim 1, is characterized in that, described line rear is the 2-20 millimeters long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207087587U CN203312007U (en) | 2012-12-09 | 2012-12-09 | Alternating-current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207087587U CN203312007U (en) | 2012-12-09 | 2012-12-09 | Alternating-current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312007U true CN203312007U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207087587U Expired - Fee Related CN203312007U (en) | 2012-12-09 | 2012-12-09 | Alternating-current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377012A (en) * | 2014-11-27 | 2015-02-25 | 广安鑫宇电子有限公司 | Transformer |
-
2012
- 2012-12-09 CN CN2012207087587U patent/CN203312007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377012A (en) * | 2014-11-27 | 2015-02-25 | 广安鑫宇电子有限公司 | Transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131127 Termination date: 20131209 |