CN203056960U - A shielding box used for a switching power supply - Google Patents
A shielding box used for a switching power supply Download PDFInfo
- Publication number
- CN203056960U CN203056960U CN 201220736396 CN201220736396U CN203056960U CN 203056960 U CN203056960 U CN 203056960U CN 201220736396 CN201220736396 CN 201220736396 CN 201220736396 U CN201220736396 U CN 201220736396U CN 203056960 U CN203056960 U CN 203056960U
- Authority
- CN
- China
- Prior art keywords
- shielding box
- power supply
- switching power
- fixing hole
- connector socket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a shielding box used for a switching power supply. The shielding box comprises a shielding box body and a shielding box cover. The shielding box body comprises a front plate, a back plate, and a bottom plate which are integrated into one body. The shielding box cover is arranged in a U-shaped structure. An enclosed shielding box is formed by the shielding box cover and the shielding box body. The front plate comprises an output connector socket fixing hole, an input connector socket fixing hole, and a fuse seat hole. Stainless steel fasteners are disposed at the positions of the output connector socket fixing hole and the input connector socket fixing hole and are used for fixing an input connector socket, an output connector socket, and a fuse seat. Finally the utility model forms the shielding box with characteristics of a good shielding effect, easy processing, easy disassembly and installation, and being beneficial to field maintenance. The shielding box effectively shields interferences on the input voltage and the output voltage of the switching power supply of electromagnetic fluctuation generated in the switching power supply, and reaches a security standard about anti-electromagnetic interference of railway electronic products.
Description
Technical field
The utility model belongs to anti-electromagnetic interference technical field, especially relates to a kind of shielding box for Switching Power Supply.
Background technology
The railway electronic product is flourish in recent years, and the Switching Power Supply product is widely used.Because the electronic devices and components in the electronic product such as transformer, transistor, relay etc. all may produce the wideband noise, form electromagnetic interference, have influence on the stability of input voltage and output voltage, and the railway product improves gradually to the requirement of stability, fail safe, reliability.So it is also extremely urgent to solve electromagnetic interference problem.Usually solving electromagnetic interference problem at first is the poor design of improving circuit, and after circuit design was fairly perfect, we also can effectively prevent electromagnetic interference by the design shielding construction.
Summary of the invention
Problem to be solved in the utility model provide a kind of simple in structure, practical, shield effectiveness is good, remove and install easily the shielding box that is used for Switching Power Supply, especially be fit to be applied to the shielding box of the anti-electromagnetic interference in the Switching Power Supply product, use so that the Switching Power Supply product meets the safety standard about anti-electromagnetic interference of railway electronic product.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of shielding box for Switching Power Supply, comprise shielding box body and shielding box cover, described shielding box body comprises header board, back plate and base plate, described header board, back plate and base plate are one, described shielding box cover is U-shaped structure, and shielding box cover and shielding box body form the shielding box of a sealing.
Further, described header board comprises out connector socket fixing hole, input connector socket fixing hole and fuse holder hole, and the position of described out connector socket fixing hole, input connector socket fixing hole is respectively equipped with stainless steel support, in order to fixedly input connector socket, out connector socket and fuse holder.
Further, described back plate comprises two wire holes, in order to draw input power cord and the out-put supply line of power supply inside from shielding box body inside.
Further, described base plate comprises input filter fixing hole and output filter band fixed bolt, in order to fixing input filter with export filter band.
Further, described header board and back are respectively equipped with the shielding box cover fixing hole on the plate, in order to form the shielding box of a sealing with described shielding box cover.
Further, described header board is provided with power supply cabinet fixing hole.
Further, described shielding box body and shielding box cover are the stainless steel metal material.
Further, the shape in the fuse holder hole on the described header board is corresponding with the shape of fuse holder, in order to fixing fuse holder and prevent the wrong plug direction.
Further, the wire hole on the plate of described back encases with the cable-through hole cover, in order to prevent from damaging power line.
Further, the position of described input filter fixing hole and output filter band fixed bolt is respectively equipped with stainless steel support.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, shield effectiveness is good, processing is simple, remove and install convenience finally to have constituted one, is conducive to the shielding box of field service.Effectively shield the interference of the inner Electromagnetic Wave that produces of Switching Power Supply product to Switching Power Supply input, output voltage, reached the safety standard about anti-electromagnetic interference of railway electronic product; The utlity model has simple in structure, easy to maintenance, advantage such as processing cost is low.
Description of drawings
Fig. 1 is the front view of a kind of shielding box for Switching Power Supply of the utility model;
Fig. 2 is the rearview of a kind of shielding box for Switching Power Supply of the utility model;
Fig. 3 is the vertical view of a kind of shielding box for Switching Power Supply of the utility model;
Fig. 4 is the end view of a kind of shielding box for Switching Power Supply of the utility model;
Fig. 5 is the vertical view of the shielding box body of a kind of shielding box for Switching Power Supply of the utility model;
Fig. 6 is the end view of the shielding box body of a kind of shielding box for Switching Power Supply of the utility model;
Fig. 7 is the front view of the shielding box cover of a kind of shielding box for Switching Power Supply of the utility model;
Among the figure: 1, header board; 2, back plate; 3, base plate; 4, shielding box cover; 5, out connector socket fixing hole; 6, input connector socket fixing hole; 7, fuse holder hole; 8, wire hole; 9, power supply cabinet fixing hole; 10, shielding box cover fixing hole; 11, input filter fixing hole; 12, output filter band fixed bolt.
Embodiment
Shown in Fig. 1～7, a kind of shielding box for Switching Power Supply of the utility model, comprise shielding box body and shielding box cover 4, described shielding box body comprises header board 1, back plate 2 and base plate 3, described header board 1, back plate 2 and base plate 3 are one, described shielding box cover 4 is U-shaped structure, and shielding box cover 4 and shielding box body form the shielding box of a sealing.Described header board 1 comprises out connector socket fixing hole 5, input connector socket fixing hole 6 and fuse holder hole 7, and the position of described out connector socket fixing hole 5, input connector socket fixing hole 6 is respectively equipped with stainless steel support, in order to fixedly input connector socket, out connector socket and fuse holder.Described back plate 2 comprises two wire holes 8, in order to draw input power cord and the out-put supply line of power supply inside from shielding box body inside.Described base plate 3 comprises input filter fixing hole 11 and output filter band fixed bolt 12, in order to fixing input filter with export filter band.Be respectively equipped with shielding box cover fixing hole 10 on described header board 1 and the back plate 2, in order to form the shielding box of a sealing with described shielding box cover 4.Described header board 1 is provided with power supply cabinet fixing hole 9.Described shielding box body and shielding box cover 4 are the stainless steel metal material.The shape in the fuse holder hole 7 on the described header board 1 is corresponding with the shape of fuse holder, in order to fixing fuse holder and prevent the wrong plug direction.Wire hole 8 usefulness cable-through hole covers on the plate 2 of described back encase, and described cable-through hole cover is for the rubber plastic borehole jack, in order to prevent from damaging power line.The position of described input filter fixing hole 11 and output filter band fixed bolt 12 is respectively equipped with stainless steel support.Shielding box cover 4 usefulness stainless steel supports are fastened on the shielding box cover fixing hole 10, form the shielding box of a sealing.Described header board 1 is provided with power supply cabinet fixing hole 9, with stainless steel support shielding box is fastened on the power supply cabinet.Become the part of Switching Power Supply, effectively shielded the interference of the inner Electromagnetic Wave that produces of Switching Power Supply product to Switching Power Supply input, output voltage, reach the safety standard about anti-electromagnetic interference of railway electronic product; And processing is simple, remove and install conveniently, is conducive to field service.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (10)
1. shielding box that is used for Switching Power Supply, comprise shielding box body and shielding box cover, described shielding box body comprises header board, back plate and base plate, it is characterized in that: described header board, back plate and base plate are one, described shielding box cover is U-shaped structure, and shielding box cover and shielding box body form the shielding box of a sealing.
2. the shielding box for Switching Power Supply according to claim 1, it is characterized in that: described header board comprises out connector socket fixing hole, input connector socket fixing hole and fuse holder hole, and the position of described out connector socket fixing hole, input connector socket fixing hole is respectively equipped with stainless steel support.
3. the shielding box for Switching Power Supply according to claim 1 is characterized in that: described back plate comprises two wire holes.
4. the shielding box for Switching Power Supply according to claim 1 is characterized in that: described base plate comprises input filter fixing hole and output filter band fixed bolt.
5. the shielding box for Switching Power Supply according to claim 1 is characterized in that: be respectively equipped with the shielding box cover fixing hole on described header board and the back plate.
6. the shielding box for Switching Power Supply according to claim 1, it is characterized in that: described header board is provided with power supply cabinet fixing hole.
7. the shielding box for Switching Power Supply according to claim 1, it is characterized in that: described shielding box body and shielding box cover are the stainless steel metal material.
8. the shielding box for Switching Power Supply according to claim 2, it is characterized in that: the shape in the fuse holder hole on the described header board is corresponding with the shape of fuse holder.
9. the shielding box for Switching Power Supply according to claim 3 is characterized in that: the wire hole on the plate of described back encases with the cable-through hole cover.
10. the shielding box for Switching Power Supply according to claim 4 is characterized in that: the position of described input filter fixing hole and output filter band fixed bolt is respectively equipped with stainless steel support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736396 CN203056960U (en) | 2012-12-28 | 2012-12-28 | A shielding box used for a switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736396 CN203056960U (en) | 2012-12-28 | 2012-12-28 | A shielding box used for a switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056960U true CN203056960U (en) | 2013-07-10 |
Family
ID=48739877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736396 Expired - Lifetime CN203056960U (en) | 2012-12-28 | 2012-12-28 | A shielding box used for a switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056960U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092911A (en) * | 2015-08-28 | 2015-11-25 | 镇江宝纳电磁新材料有限公司 | Test cabinet shielding structure |
| CN108882597A (en) * | 2018-08-29 | 2018-11-23 | 向荣集团有限公司 | A kind of electrical control cabinet with function of shielding |
| CN111348301A (en) * | 2020-03-24 | 2020-06-30 | 赵媛 | Electronic product storage box capable of preventing magnetic interference |
-
2012
- 2012-12-28 CN CN 201220736396 patent/CN203056960U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092911A (en) * | 2015-08-28 | 2015-11-25 | 镇江宝纳电磁新材料有限公司 | Test cabinet shielding structure |
| CN108882597A (en) * | 2018-08-29 | 2018-11-23 | 向荣集团有限公司 | A kind of electrical control cabinet with function of shielding |
| CN111348301A (en) * | 2020-03-24 | 2020-06-30 | 赵媛 | Electronic product storage box capable of preventing magnetic interference |
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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 |
Granted publication date: 20130710 |
|
| CX01 | Expiry of patent term |