CN201681709U - Noise suppression transformer - Google Patents
Noise suppression transformer Download PDFInfo
- Publication number
- CN201681709U CN201681709U CN2010202026770U CN201020202677U CN201681709U CN 201681709 U CN201681709 U CN 201681709U CN 2010202026770 U CN2010202026770 U CN 2010202026770U CN 201020202677 U CN201020202677 U CN 201020202677U CN 201681709 U CN201681709 U CN 201681709U
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- transformer
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- junction box
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Abstract
The utility model discloses a noise suppression transformer, which comprises a transformer main body, a shielding shell covered on the transformer main body, a coil arranged inside the transformer main body, a primary junction box arranged on one side of the transformer, a junction box cover connected with the primary junction box and a secondary junction box arranged on the other side of the transformer main body, wherein a shielding device is arranged between the primary junction box and the junction box cover; a first shielding layer is arranged on the surface of the coil; and a second shielding layer is arranged between the shielding shell and the coil. By improving the structure of the transformer, the transformer can achieve a greatly improved effect in shielding electromagnetism and noise, reduce interference between apparatuses, perform its functions fully and improve operation reliability of electric equipment.
Description
Technical field
The utility model relates to a kind of transformer, specifically the noise suppressed transformer.
Background technology
Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core (magnetic core).In electric equipment and radio-circuit, be commonly used for lifting voltage, matched impedance, safety isolation etc.The function of transformer mainly contains: voltage transformation; Current transformation; Impedance conversion; Isolate; Voltage stabilizing (magnetic saturation transformer); Autotransformer; High-tension transformers (dry type and oil immersed type) etc., the core configuration that transformer is commonly used generally has E type and C sections core, XED type, ED type CD type.
Under some particular job environment, be equipped with numerous electronics, electric equipment, so electromagnetic environment is very abominable, very serious of noise, phase mutual interference between the equipment is quite serious, and this not only influences the functional reliability of equipment, also influences giving full play to of its function.Common transformer does not adopt quarantine measures such as electric screen and magnetic screen, though can be to the less demanding power consumption equipment power supply of some Electro Magnetic Compatibilities, but just might be subjected to the conducted interference of power supply unit to the sensitive equipment power supply that has Electro Magnetic Compatibility to require, the functional reliability of power consumption equipment is exerted an influence.
The utility model content
The utility model purpose: at the existing problem and shortage of above-mentioned existing longitudinal cable connector, the purpose of this utility model provides and a kind ofly can effectively shield the transformer that electromagnetism, noise, minimizing equipment room interfere with each other.
Technical scheme: for achieving the above object, the technical solution of the utility model is a kind of noise suppressed transformer, comprise the transformer body, be covered in screening can on the transformer body, be arranged on the transformer body interior coil, be arranged at the elementary terminal box of transformer body one side, the connector cover that joins with elementary terminal box and the secondary terminal box that is arranged at transformer body opposite side, wherein between elementary terminal box and connector cover, be provided with screening arrangement, be provided with first screen at coil surface, between screening can and coil, be provided with the secondary shielding layer.
For making screening arrangement possess the effect of shielding electricity and magnetic simultaneously, described screening arrangement comprises stainless steel strip that is welded on the connector cover inboard and the conductive rubber that joins with elementary terminal box opening part.
For making screening arrangement more perfect, described first screen has five layers, outwards is followed successively by the first mica powder belt, first polyimide film layer, copper strips layer, second polyimide film layer and the second mica powder belt by coil surface.
Be similarly and make more perfection of shield effectiveness, described secondary shielding layer is made of the epoxy resin layer in the cast of the coil outside.
Beneficial effect: the utility model is by to the architecture advances of transformer, makes its shielding electromagnetism, anti noise improve, reduce phase mutual interference between the equipment greatly, make its function be not fully exerted, improve the reliability of power consumption equipment work.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of screening arrangement in the utility model;
Fig. 3 is the structural scheme of mechanism of coil in the utility model;
Fig. 4 is the partial enlarged drawing of first screen in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only be used to the utility model is described and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
As depicted in figs. 1 and 2, a kind of noise suppressed transformer, comprise transformer body 1, on transformer body 1, be coated with screening can 2, be provided with coil 3 in transformer body 1 inside, side at transformer body 1 is provided with elementary terminal box 4, on elementary terminal box 4, be connected to connector cover 5, opposite side at transformer body 1 is provided with secondary terminal box 6, between elementary terminal box 4 and connector cover 5, be provided with screening arrangement 9, screening arrangement 9 comprises stainless steel strip 8 that is welded on connector cover 5 inboards and the conductive rubber 7 that joins with elementary terminal box 4 opening parts, be provided with first screen 10 on coil 3 surfaces, be provided with secondary shielding layer 11 between screening can 2 and coil 3, secondary shielding layer 11 is made of the epoxy resin layer in the cast of coil 3 outsides.
As shown in Figure 3 and Figure 4, first screen 10 has five layers, outwards is followed successively by the first mica powder belt 12, first polyimide film layer 13, copper strips layer 14, second polyimide film layer 15 and the second mica powder belt 16 by coil 3 surfaces.
Claims (4)
1. noise suppressed transformer, comprise transformer body (1), be covered in the screening can (2) on the transformer body (1), be arranged on the inner coil (3) of transformer body (1), be arranged at the elementary terminal box (4) of transformer body (1) one side, connector cover (5) that joins with elementary terminal box (4) and the secondary terminal box (6) that is arranged at transformer body (1) opposite side, it is characterized in that: be provided with screening arrangement (9) between described elementary terminal box (4) and the connector cover (5), described coil (3) surface is provided with first screen (10), is provided with secondary shielding layer (11) between described screening can (2) and the coil (3).
2. according to the described noise suppressed transformer of claim 1, it is characterized in that: described screening arrangement (9) comprises stainless steel strip (8) that is welded on connector cover (5) inboard and the conductive rubber (7) that joins with elementary terminal box (4) opening part.
3. according to the described noise suppressed transformer of claim 1, it is characterized in that: described first screen (10) has five layers, outwards is followed successively by the first mica powder belt (12), first polyimide film layer (13), copper strips layer (14), second polyimide film layer (15) and the second mica powder belt (16) by coil (3) surface.
4. thoroughly do away with the described noise suppressed transformer of claim 1, it is characterized in that: described secondary shielding layer (11) is made of the epoxy resin layer in the cast of coil (3) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202026770U CN201681709U (en) | 2010-05-25 | 2010-05-25 | Noise suppression transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202026770U CN201681709U (en) | 2010-05-25 | 2010-05-25 | Noise suppression transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681709U true CN201681709U (en) | 2010-12-22 |
Family
ID=43346746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202026770U Expired - Fee Related CN201681709U (en) | 2010-05-25 | 2010-05-25 | Noise suppression transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208260A (en) * | 2011-03-14 | 2011-10-05 | 镇江康士伯船舶电气有限公司 | Noise suppression transformer |
| CN107170560A (en) * | 2017-07-20 | 2017-09-15 | 银川欣安瑞电气有限公司 | High-frequency and high-voltage water cooling electric discharge transformer |
-
2010
- 2010-05-25 CN CN2010202026770U patent/CN201681709U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208260A (en) * | 2011-03-14 | 2011-10-05 | 镇江康士伯船舶电气有限公司 | Noise suppression transformer |
| CN107170560A (en) * | 2017-07-20 | 2017-09-15 | 银川欣安瑞电气有限公司 | High-frequency and high-voltage water cooling electric discharge transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20160525 |