CN2790120Y - Screening box - Google Patents
Screening box Download PDFInfo
- Publication number
- CN2790120Y CN2790120Y CN 200520057172 CN200520057172U CN2790120Y CN 2790120 Y CN2790120 Y CN 2790120Y CN 200520057172 CN200520057172 CN 200520057172 CN 200520057172 U CN200520057172 U CN 200520057172U CN 2790120 Y CN2790120 Y CN 2790120Y
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- China
- Prior art keywords
- shielding box
- shell fragment
- utility
- model
- box body
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- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides a screening box. The upper part of the shielding box body is provided with an opening. The upper side of at least one inner side wall of the inner side of the opening is provided with a plurality of spring slices which downwards and obliquely extends, and a radiator is inserted into the screening box from the opening to tightly press the spring slices. Because of the adoption of the structure of mutually combining the screening box and the radiator through the spring slices and the good contact of the screening box and the radiator through the spring slices, the utility model not only can play the function of electromagnetic screening and heat radiation for electronic components, but also can reduce the occupied space of screening and radiating devices. The utility model has the advantages of simple structure, easy manufacture and installation and low cost and can be widely used for various electronically electric appliances, and the utility model also has manufacture of structures or devices with screening and radiating requirements.
Description
Technical field
The utility model relates to the plant equipment of the electronics or the communications field, particularly is a kind of shielding box that is used with radiator.
Background technology
Electro Magnetic Compatibility is meant that electronic devices and components, electronic equipment or system can well move in residing electromagnetic environment, and its place environment is not produced the ability of the electromagnetic interference that is difficult to bear.For reaching this effect, will take corresponding shielding measure to corresponding electronic devices and components or circuit.
When the temperature when electronic devices and components are worked meets or exceeds certain limit, components and parts just can not be safe and good operation, so residing ambient temperature of electronic devices and components, generally all must be controlled at certain temperature range, need to adopt corresponding cooling measure to guarantee that residing environment of components and parts or working temperature remain in the scope of requirement.
Along with the development of modern electronic technology, the development of particularly various extensive and very large scale integration technologies, more and more integrated circuit and VLSI (very large scale integrated circuit) chip are manufactured comes out.Because the power consumption of these chips is increasing, and exists certain electromagnetic radiation, in order to make its operate as normal and not disturb other circuit working, just must provide electromagnetic shielding and heat radiation for it simultaneously.
At present, electromagnetic shielding and heat dissipation technology have had long time in the application of electronic equipment, to electronic devices and components (mainly being chip) heat radiation or individually shielded structure are provided separately or install more, but also find as yet at the structure that same electronic devices and components (chip) should provide good heat radiating to satisfy the electromagnetic shielding requirement again.Because the volume of present various electrical equipment is more and more littler, its inner space is very limited, and existing heat radiation or individually shielded structure or the device of providing separately all needs to occupy bigger space, makes comparatively complexity is installed also.
The utility model content
The utility model provides a kind of shielding box, to solve in the prior art shielding box big shortcoming that takes up room.
The technical scheme that the utility model provides is: a kind of shielding box, comprise the shielding box body, and it is characterized in that: be provided with opening in described shielding box upper part of body, the top of at least one madial wall of opening inboard is provided with the shell fragment of several downward-sloping extensions.
Be provided with the shell fragment of several downward-sloping extensions in the top of at least one madial wall of described shielding box body inboard; Also can be equipped with the shell fragment of several downward-sloping extensions in all madial wall tops of described shielding box body inboard.
Be equipped with the shell fragment of several downward-sloping extensions in two opposed inside wall tops of described shielding box body inboard; Described shell fragment, its contour shape can be rectangle or trapezoidal or triangle.
Described shell fragment and described shielding box body are integrated components.
The following peripheral of described shielding box body is provided with several metal pin of pegging graft with circuit board, is used for inserting and being connected on the circuit board.
Principle of the present utility model is: radiator inserts in the shielding box upper opening, and will compress along several set shell fragments of shielding box inwall top, and keeps good contact; With the common space that forms a relative closure of described shielding box.Because shielding box and shell fragment, radiator are hardware, have favorable conductive, shielding and thermal radiation function, so shielding box both can shield also can the certain heat of radiation; Radiator also carries out electromagnetic shielding in heat radiation; Reach jointly and provide the purpose of shielding with heat radiation for electronic devices and components or the circuit that is located in the inner space.
Advantage of the present utility model is: because shielding box of the present utility model and radiator mutually combine by shell fragment, make the two keep good contact by shell fragment, can play simultaneously the electromagnetic shielding of electronic devices and components or circuit and the effect of heat radiation, and make the shielding and radiating effect better, can also reduce to shield the space shared with heat abstractor.
The utility model is simple in structure, be easy to make install, and cost is low.Can be widely used in and possess shielding and the structure of heat radiation requirement or the manufacturing of device in all kinds of electronic apparatuss simultaneously.
Description of drawings
Fig. 1 is the utility model stereoscopic assembly structure schematic diagram;
Fig. 2 is the perspective view of shielding box 2 among Fig. 1;
Fig. 3 is the sectional structure schematic diagram of figure the utility model front view.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As Fig. 1-shown in Figure 2: a kind of shielding box structure, comprise metallic shield box body 2, be provided with opening 6 on the top of described shielding box body 2, opening 6 is a rectangle; The top of four madial walls of the inboard of opening 6 is provided with the shell fragment 5 of several downward-sloping extensions; The contour shape rectangle of shell fragment 5; Shell fragment 5 is integrated components with above-mentioned shielding box body 2.
On the following peripheral of above-mentioned shielding box body 1, be provided with several metal pin 7 of pegging graft, insert and be connected on the circuit board 4 with circuit board 4.
The radiator 3 that bottom shape and above-mentioned shielding box 2 openings are suitable, vertically insert in the opening 6 of described shielding box body 2, and compressed by set shell fragment 5 on described shielding box 2 inwalls, the common space that forms a relative closure, and common for being located at the electronic chip 1 in this space, shielding and heat radiation are provided.
As shown in Figure 3, master chip 1 has certain heat radiation requirement, is welded on the circuit board 4, and its peripheral circuit has certain shielding requirements simultaneously; Shielding box body 2, material are pre-zinc-plated tinplate, and it and circuit board 4 adopt the mode of pegging graft to link together by pin 7; The segment space that the shielding box body is surrounded requires shielding; The radiator 3 that has radiating fin, its bottom links together by thermal grease and chip 1, and the shell fragment 5 of its peripheral conductively-closed box 2 inboard tops is tightly pushed down, and radiator 3 materials are aluminium alloy, and chemical oxidation treatment is made on the surface.
Adopt method identical with present embodiment or that be equal to, can also produce the integrated structure of the shielding box 2 that possesses following characteristics and radiator 3: on two opposed inside walls of above-mentioned shielding box body 2 openings 5 inboards, be equipped with the shell fragment 5 of several downward-sloping extensions; Shielding box 2 and radiator 3 are other metallic material components; Radiator 3 is metal derbies or have fan; Shell fragment 5 is the individual members that are fixed on the shielding box 2, the contour shape of shell fragment 5 also can or trapezoidal or triangle or other shapes.This structure need also can be applied to the electronic circuit of shielding and heat radiation.
Claims (6)
1, a kind of shielding box comprises the shielding box body, it is characterized in that: be provided with opening in described shielding box upper part of body, the top of at least one madial wall of opening inboard is provided with the shell fragment of several downward-sloping extensions.
2, shielding box as claimed in claim 1 is characterized in that: the shell fragment that is equipped with several downward-sloping extensions in two opposed inside wall tops of described shielding box body inboard.
3, shielding box as claimed in claim 1 is characterized in that: the shell fragment that is equipped with several downward-sloping extensions in all madial wall tops of described shielding box body inboard.
4, as claim 1 or 2 or 3 described shielding boxs, it is characterized in that: described shell fragment and described shielding box body are integrated components.
5, shielding box as claimed in claim 4 is characterized in that: described shell fragment, its contour shape are rectangle or trapezoidal or triangle.
6, shielding box as claimed in claim 5 is characterized in that: the following peripheral of described shielding box body is provided with several metal pin of pegging graft with circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057172 CN2790120Y (en) | 2005-04-15 | 2005-04-15 | Screening box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057172 CN2790120Y (en) | 2005-04-15 | 2005-04-15 | Screening box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2790120Y true CN2790120Y (en) | 2006-06-21 |
Family
ID=36790453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057172 Expired - Fee Related CN2790120Y (en) | 2005-04-15 | 2005-04-15 | Screening box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2790120Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058182A1 (en) * | 2014-10-17 | 2016-04-21 | 华为技术有限公司 | Heat dissipation shielding structure and communication product |
-
2005
- 2005-04-15 CN CN 200520057172 patent/CN2790120Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058182A1 (en) * | 2014-10-17 | 2016-04-21 | 华为技术有限公司 | Heat dissipation shielding structure and communication product |
| US10292253B2 (en) | 2014-10-17 | 2019-05-14 | Huawei Technologies Co., Ltd. | Heat-dissipation and shielding structure and communications product |
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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: 20060621 Termination date: 20110415 |