CN201854181U - Inverter shielding case - Google Patents
Inverter shielding case Download PDFInfo
- Publication number
- CN201854181U CN201854181U CN2010205514066U CN201020551406U CN201854181U CN 201854181 U CN201854181 U CN 201854181U CN 2010205514066 U CN2010205514066 U CN 2010205514066U CN 201020551406 U CN201020551406 U CN 201020551406U CN 201854181 U CN201854181 U CN 201854181U
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- CN
- China
- Prior art keywords
- inverter
- radome
- box body
- shielding case
- aperture
- 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 discloses an inverter shielding case, which is a box with an opening on a side surface. A plurality of small holes are arranged on a bottom plate of the box, a wire through groove is disposed on a side surface of the box, and a plurality of small holes are arranged on a side surface which is opposite to the side surface with the wire through groove. The inverter shielding case is made of thin aluminum plate metal, and the surfaces of the aluminum plate metal are in conductive oxidization treatment. Skirts are formed at edges of a side plate at the opening end of the box, and at least one mounting hole is arranged at each skirt. The inverter shielding case has the advantages that the inverter shielding case is simple in process, does not affect installation and use of other structures and circuit systems while increasing radiating efficiency of an inverter, stops electromagnetic interference ways, and minimizes signals interfering operation of the inverter.
Description
[technical field]
The utility model belongs to the electromagnetic compatibility field that electronics shows, particularly relates to a kind of electro-magnetic shielding cover of inverter of reinforcement type LCD.
[background technology]
Inverter circuit is called the DC/AC converter again, is the core of frequency converter, and it mainly produces the SPWM control signal of certain width and polarity by the high-speed power electronic switch.This pulse signal with very steep edge can produce very strong electromagnetic radiation, especially output circuit.They will be gone out the energy transmission of oneself in every way, disturb the operate as normal of peripheral equipment, the limiting value requirement that has seriously exceeded electromagnetic compatibility standard.To become today of the following main flow that shows in liquid crystal display, just more strict to the requirement of electromagnetic shielding, also be an inexorable trend.The electronic applications electromagnetic shielding always is that the emphasis of design work also is a difficult point, and is also like this in the demonstration field, particularly the electromagnetic shielding of display inverter circuit all paid attention to by people always.But go back the general feasible program of neither one at present, wherein more all is to process an inverter rest area according to metal structure, puts it in the cavity.Difficulty is big doing so not only on technology, and also is difficult for leaving by the inverter liberated heat.It certainly will influence the operate as normal of inverter.Simultaneously because heat radiation freely may not cause the damage of inverter.
For reducing the interference that inverter circuit produces, method commonly used has three kinds: 1) control interference source.Make inverter circuit send interference signal less as far as possible.2) antijamming capability of the disturbed object of raising.3) the blocking-up interference channel is isolated interference source.More than three kinds of methods have only the third practical.Because, make inverter circuit itself send interference signal less as far as possible, tend to have influence on the normal performance of the performance of inverter own like this, so first method can not be used.And improve the antijamming capability of disturbed object, in fact be difficult to accomplish.
[summary of the invention]
The inverter radome that other structures and Circuits System are installed, used is not provided again when being to provide a kind of technology simply, promptly to improve the inverter radiating efficiency technical problem to be solved in the utility model.
The utility model solves the problems of the technologies described above by the following technical programs: a kind of inverter radome, described inverter radome is the box body of a lateral opening, offer a plurality of apertures on the base plate of described box body, one side of described box body offers crossed beam trunking, and this is offered on the opposite flank of side of crossed beam trunking and offers a plurality of apertures.
Offer the parallel aperture of two rows on the base plate of described box body, offer row's aperture on the side of described box body, and every row's aperture is all equidistant to be offered.
Described inverter radome is made by the thin aluminum sheet panel beating.
Described thin aluminum sheet panel beating surface is carried out electric conductive oxidation and is handled.
The edge of the side plate of the openend of described box body all forms the shirt rim, offers at least one installing hole on described each shirt rim.
The utility model has the advantages that: technology is simple, does not influence other structures and Circuits System when promptly improving the inverter radiating efficiency again and installs, uses, and has blocked the electromagnetic interference approach, makes and disturbs the signal of inverter work to minimize.
[description of drawings]
Fig. 1 is the utility model structural representation.
Fig. 2 installs constructed profile for the utility model.
[embodiment]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings, so that those skilled in the art can better understand the utility model and being implemented, but illustrated embodiment is not as to qualification of the present utility model.
Consider that inverter circuit fecund gives birth to the electromagnetic wave of high frequency, characteristics such as its penetration capacity is very weak.The technical scheme that the utility model adopted is that the thin aluminum sheet panel beating that will have heat conductivility is made the box-like radome, processes many regular apertures of arranging according to the needs that dispel the heat again, considers that simultaneously electromagnetic compatibility requirements designs the diameter of aperture.In order to prevent that material surface from forming the bad oxide layer of conduction, carries out electric conductive oxidation to surface of aluminum plate and handle.
See also Fig. 1, this inverter radome 2 is the box body of a lateral opening, offer a plurality of apertures on the base plate of this box body, also offer a plurality of apertures on the side of this box body, described aperture all is in order to dispel the heat, for radiating effect is good, the two relative side that is preferably in box body is opened aperture simultaneously, forms convection current.Among this embodiment, only show the situation that aperture is opened in a side wherein, this is opened on the opposite flank of side of aperture and offers crossed beam trunking 22, be used for making circuit that the wire rod that needs is installed and pass, this crossed beam trunking 22 just with the side, opposite on hole-shaped become convection current.And among this embodiment, offer the parallel aperture of two rows on the base plate of described box body, offer row's aperture on the side of described box body, and every row's aperture is all equidistant to be offered.
The edge of the side plate of the openend of this box body all forms shirt rim 24, offers at least one installing hole 242 on described each shirt rim 24, and described installing hole 242 is used for this inverter radome is installed on the display organism frame.
The technology simple possible that this scheme is overall.Please consult shown in Figure 2ly simultaneously, the inverter radome 2 that processes is covered on the inverter 3, pass installing hole 242 with screw then and be fixed on the organism frame 1, this connected mode is convenient to loading and unloading.Simultaneously can carry out adjusted size to this inverter radome easily according to the size of inverter.
Claims (5)
1. inverter radome, it is characterized in that: described inverter radome is the box body of a lateral opening, offer a plurality of apertures on the base plate of described box body, a side of described box body offers crossed beam trunking, and this is offered on the opposite flank of side of crossed beam trunking and offers a plurality of apertures.
2. a kind of inverter radome as claimed in claim 1 is characterized in that: offer the parallel aperture of two rows on the base plate of described box body, offer row's aperture on the side of described box body, and every row's aperture is all equidistant to be offered.
3. a kind of inverter radome as claimed in claim 1 is characterized in that: described inverter radome is made by the thin aluminum sheet panel beating.
4. a kind of inverter radome as claimed in claim 3 is characterized in that: described thin aluminum sheet panel beating surface is carried out electric conductive oxidation and is handled.
5. a kind of inverter radome as claimed in claim 1, it is characterized in that: the edge of the side plate of the openend of described box body all forms the shirt rim, offers at least one installing hole on described each shirt rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205514066U CN201854181U (en) | 2010-09-28 | 2010-09-28 | Inverter shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205514066U CN201854181U (en) | 2010-09-28 | 2010-09-28 | Inverter shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201854181U true CN201854181U (en) | 2011-06-01 |
Family
ID=44096561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205514066U Expired - Lifetime CN201854181U (en) | 2010-09-28 | 2010-09-28 | Inverter shielding case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201854181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434901A (en) * | 2013-08-27 | 2013-12-11 | 广东奥美格传导科技股份有限公司 | Novel anti-interference type lift car top control cabinet |
| WO2018184595A1 (en) * | 2017-04-07 | 2018-10-11 | Tianjin Laird Technologies Limited | Heat dissipation devices |
-
2010
- 2010-09-28 CN CN2010205514066U patent/CN201854181U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434901A (en) * | 2013-08-27 | 2013-12-11 | 广东奥美格传导科技股份有限公司 | Novel anti-interference type lift car top control cabinet |
| WO2018184595A1 (en) * | 2017-04-07 | 2018-10-11 | Tianjin Laird Technologies Limited | Heat dissipation devices |
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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: 20110601 |
|
| CX01 | Expiry of patent term |