CN105519248A - Heat radiating shielding structure and communication product - Google Patents
Heat radiating shielding structure and communication product Download PDFInfo
- Publication number
- CN105519248A CN105519248A CN201480001202.6A CN201480001202A CN105519248A CN 105519248 A CN105519248 A CN 105519248A CN 201480001202 A CN201480001202 A CN 201480001202A CN 105519248 A CN105519248 A CN 105519248A
- Authority
- CN
- China
- Prior art keywords
- radiator
- radome
- shielding construction
- heat
- circuit board
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/205—Heat-dissipating body thermally connected to heat generating element via thermal paths through printed circuit board [PCB]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0039—Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a heat radiating shielding structure comprising a heating element, a circuit board, a shielding cover and a heat radiator. The heating element is mounted on the circuit board; the shielding cover is fixed on the circuit board and grounded; the shielding cover and the circuit board form shielding space; the heating element is accommodated in the shielding space; the heat radiator is connected to the shielding cover; the shielding cover has a body and a plurality of fixing sheets; the fixing sheets are outwardly projected from the body to the shielding space; the heta radiator is equipped with a plurality of notches; and the plurality of fixing sheets respectively pass through the plurality of notches and connect the heat radiator to the body. The invention further provides a communication product; the heat radiating shielding structure has great heat radiating and shielding performance; and a problem of heat radiator grounding can be well solved.
Description
Technical field
The present invention relates to electromagnetic armouring structure, particularly relate to a kind of heat radiation shielding construction.
Background technology
Telecom terminal product comprises the larger chip of some caloric values, such as: power amplifier (PA) etc., the chip that caloric value is larger needs electromagnetic shielding and heat radiation usually.
Figure 1 shows that one heat radiation shielding construction of the prior art, euthermic chip 11 is surrounded by the complete shielding cavity that circuit board 12, mask frame 13, screening cover 14 are formed, to realize the object of electromagnetic shielding, heat conductive pad 15 is installed between screening cover 14 and euthermic chip 11 to reduce the thermal resistance between euthermic chip 11 and screening cover 14, above screening cover 14, increase by a flat-plate radiator 16 simultaneously, by bond plies, radiator 16 is bonded on screening cover 14.
Heat radiation shielding construction existing defects shown in Fig. 1 is as follows, and owing to being bonded on screening cover by bond plies by radiator, bond plies is unfavorable for radiator ground connection, and radiator can not get good ground connection, and meeting radio frequency, Electro Magnetic Compatibility cause adverse effect.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of heat radiation shielding construction, while having good heat radiation function of shielding, can solve the problem of radiator ground connection.
To achieve these goals, embodiment of the present invention provides following technical scheme:
The present invention has supplied a kind of heat radiation shielding construction, a kind of heat radiation shielding construction, comprise heater element, circuit board, radome and radiator, described heater element is arranged on described circuit board, described radome is fixed on described circuit board and ground connection, described radome and described circuit board form shielding space jointly, described heater element is contained in described shielding space, described radiator is connected to described radome, described radome comprises body and multiple stator, described stator projects towards the outside of described shielding space from described body, described radiator is provided with multiple breach, described multiple stator is each passed through described multiple breach and is connected on the body by described radiator.
Wherein, described stator comprises connecting portion and location division, and described connecting portion is connected between described location division and described body, and described connecting portion is housed in described breach, and described location division and described body lay respectively at and fit in the both sides of described radiator.
Wherein, described location division is parallel to described body, the vertical described location division of described connecting portion.
Wherein, described radome is provided with through hole, described through hole is just to described heater element, described radiator comprises plate body and recess, the body of described plate body and described radome fits, and described breach is located on described plate body, and the female portion extends in described shielding space from described plate body, and the female portion stretches into described shielding space by described through hole, and recess directly or indirectly contacts described heater element.
Wherein, between the female portion and described heater element, heat conductive pad is set.
Wherein, arrange conductive fabric or conducting foam between the described plate body of described radiator and the described body of described radome, described conductive fabric or conducting foam are distributed in around described through hole.
Wherein, the surface in the face of described radiator of the described body of described radome is provided with multiple elastic protrusion, and described elastic protrusion contacts described radiator and produces strain.
Wherein, described multiple elastic protrusion is shaped in described body.
Wherein, described radiator is tabular.
The present invention also provides a kind of communication products, comprises the heat radiation shielding construction described in above-mentioned any one.
Radiator is connected on radome by the stator on radome with coordinating of the breach on radiator by heat radiation shielding construction provided by the invention, and radiator and radome are linked into an integrated entity, and by the ground connection of radome, achieves the ground connection of radiator.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in execution mode below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained as these accompanying drawings.
Fig. 1 is the schematic diagram of the heat radiation shielding construction of communication products in prior art.
Fig. 2 is the schematic diagram of the heat radiation shielding construction that one embodiment of the present invention provides.
Fig. 3 is the close-up schematic view of the heat radiation shielding construction shown in Fig. 2.
Fig. 4 is the heat radiation shielding construction schematic diagram that another embodiment of the present invention provides.
Fig. 5 is the heat radiation shielding construction schematic diagram that another execution mode of the present invention provides.
Fig. 6 is the radome partial schematic diagram in the heat radiation shielding construction of a kind of execution mode of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly described.
Refer to Fig. 2, the embodiment of the present invention relates to the heat radiation shielding construction in a kind of communication products and communication products.Heat radiation shielding construction comprises heater element 20, circuit board 30, radome 40 and radiator 50.Described heater element 20 is arranged on described circuit board 30, and heater element 20 can be the chip that communication products internal heat generation amount is larger, such as power amplifier chips, and heater element 20 needs electromagnetic shielding, realizes the electromagnetic shielding to heater element 20 by radome 40.Described radome 40 is fixed on described circuit board 30 and ground connection, and specifically, circuit board 30 comprises ground plane, is electrically connected to the ground plane on circuit board 30, namely achieves the ground connection of radome 40 while radome 40 is fixing with circuit board 30.Described radome 40 forms shielding space jointly with described circuit board 30, and described heater element 20 is contained in described shielding space.Described radiator 50 is connected to described radome 40, described radome 40 comprises body 42 and multiple stator 44, described stator 44 projects towards the outside of described shielding space from described body 42, described radiator 50 is provided with multiple breach 54, and described multiple stator 44 is each passed through described multiple breach 54 and is connected on described body 42 by described radiator 50.
Radiator 50 is connected on radome 40 by the stator 44 on radome 40 with coordinating of the breach 54 on radiator 50 by the heat radiation shielding construction that the embodiment of the present invention provides, radiator 50 and radome 40 are linked into an integrated entity, and pass through the ground connection of radome 40, achieve the ground connection of radiator 50.By coordinating of stator 44 and breach 54, radiator 50 is formed a component parts together with radome 40 riveting, also facilitates the assembling of communication products.
Described radome 40 can be the cover body of integral type, also can comprise mask frame and shielding cover board, and mask frame and shielding cover board complement each other to form complete cover body.
Please refer to Fig. 3, in a kind of execution mode, described stator 44 comprises connecting portion 442 and location division 444, described connecting portion 442 is connected between described location division 444 and described body 42, described connecting portion 442 is housed in described breach 54, and described location division 444 lays respectively at described body 42 and fits in the both sides of described radiator 50.The rib of stator 44 by becoming in radome 40 body 42 upper punch swaging, through bending after the breach 54 of radiator 50, make radome 40 and radiator 50 be fixedly connected into the structure of integral type through riveting again, make heat radiation shielding construction have good stability and reliability like this.
In a kind of execution mode, described location division 444 is parallel to described body 42, the vertical described location division 444 of described connecting portion 442.In other execution mode, connecting portion 442 also can tilt to be connected between location division 444 and body 42, is not that is vertical relation between connecting portion 442 with body 42, but tilt to extend.
Refer to Fig. 4, as the further improvement of the embodiment of the present invention, described radome 40 is provided with through hole (mark), described through hole is just to described heater element 20, described radiator 50 comprises plate body 52 and recess 56, described plate body 52 fits with the body 42 of described radome 40, described breach 54 is located on described plate body 52, the female portion 56 extends in described shielding space from described plate body 52, and the female portion 56 stretches into described shielding space by described through hole, and the recess 56 directly or indirectly described heater element 20 of contact.
In a kind of execution mode, the indirect contact that heat conductive pad or heat-conducting glue 60 realize therebetween is set between the female portion 56 and described heater element 20.
Refer to Fig. 5, in a kind of execution mode, arrange conductive fabric or conducting foam 70 between the described plate body 52 of described radiator 50 and the described body 42 of described radome 40, described conductive fabric or conducting foam 70 are distributed in around described through hole.The setting of conductive fabric or conducting foam 70 can be strengthened the present invention and to dispel the heat the effectiveness of shielding construction.
Refer to Fig. 6, in another execution mode, the surface in the face of described radiator 50 of the described body 42 of described radome 40 is provided with multiple elastic protrusion 46, described elastic protrusion 46 contacts described radiator 50 and produces strain, namely radiator 50 is pressed on elastic protrusion 46, make elastic protrusion 46 produce strain, make elastic protrusion 46 contact with radiator 50 simultaneously.By coordinating of elastic protrusion 46 and radiator 50, strengthen the conducting contact between radiator 50 and radome 40, make radiator 50 have stable ground connection performance, also can strengthen the effectiveness of embodiment of the present invention heat radiation shielding construction simultaneously.
Specifically, described multiple elastic protrusion 46 is shaped in described body 42.Also independent elastic piece structure can be set on body 42.
Specifically, described radiator 50 is in tabular.Radiator 50 is parallel to circuit board 30.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a heat radiation shielding construction, comprise heater element, circuit board, radome and radiator, described heater element is arranged on described circuit board, described radome is fixed on described circuit board and ground connection, described radome and described circuit board form shielding space jointly, described heater element is contained in described shielding space, described radiator is connected to described radome, it is characterized in that, described radome comprises body and multiple stator, described stator projects towards the outside of described shielding space from described body, described radiator is provided with multiple breach, described multiple stator is each passed through described multiple breach and is connected on the body by described radiator.
2. dispel the heat shielding construction as claimed in claim 1, it is characterized in that, described stator comprises connecting portion and location division, described connecting portion is connected between described location division and described body, described connecting portion is housed in described breach, and described location division and described body lay respectively at and fit in the both sides of described radiator.
3. dispel the heat shielding construction as claimed in claim 2, and it is characterized in that, described location division is parallel to described body, the vertical described location division of described connecting portion.
4. dispel the heat shielding construction as claimed in claim 1, it is characterized in that, described radome is provided with through hole, described through hole is just to described heater element, and described radiator comprises plate body and recess, and the body of described plate body and described radome fits, described breach is located on described plate body, the female portion extends in described shielding space from described plate body, and the female portion stretches into described shielding space by described through hole, and recess directly or indirectly contacts described heater element.
5. dispel the heat shielding construction as claimed in claim 3, it is characterized in that, arrange heat conductive pad between the female portion and described heater element.
6. dispel the heat shielding construction as claimed in claim 4, it is characterized in that, arrange conductive fabric or conducting foam between the described plate body of described radiator and the described body of described radome, described conductive fabric or conducting foam are distributed in around described through hole.
7. the heat radiation shielding construction as described in claim 1-4 any one, is characterized in that, the surface in the face of described radiator of the described body of described radome is provided with multiple elastic protrusion, and described elastic protrusion contacts described radiator and produces strain.
8. dispel the heat shielding construction as claimed in claim 7, it is characterized in that, described multiple elastic protrusion is shaped in described body.
9. the heat radiation shielding construction as described in claim 1-8 any one, is characterized in that, described radiator is tabular.
10. communication products, is characterized in that, described communication products comprise the heat radiation shielding construction as described in claim 1-9 any one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014080749 | 2014-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105519248A true CN105519248A (en) | 2016-04-20 |
| CN105519248B CN105519248B (en) | 2019-02-19 |
Family
ID=55725110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480001202.6A Active CN105519248B (en) | 2014-06-25 | 2014-06-25 | Radiate shielding construction and communication products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105519248B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793724A (en) * | 2016-12-09 | 2017-05-31 | 屈兆辉 | One kind radiating shielding construction |
| CN108762451A (en) * | 2018-07-10 | 2018-11-06 | 深圳市优必选科技有限公司 | Heat radiation structure of CPU |
| CN109874285A (en) * | 2017-12-04 | 2019-06-11 | 和硕联合科技股份有限公司 | Circuit board integrates and screening arrangement |
| CN110392517A (en) * | 2018-04-16 | 2019-10-29 | 纬创资通股份有限公司 | Electronic device and electromagnetic shielding device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030025180A1 (en) * | 2001-08-01 | 2003-02-06 | International Business Machines Corporation | EMI shielding for semiconductor chip carriers |
| CN201479458U (en) * | 2009-06-26 | 2010-05-19 | 建汉科技股份有限公司 | Radiation structure capable of controlling electromagnetic radiation |
| JP2013110257A (en) * | 2011-11-21 | 2013-06-06 | Panasonic Corp | Substrate fitting apparatus, substrate fitting method, and electronic apparatus |
| CN203136420U (en) * | 2013-03-06 | 2013-08-14 | 惠州Tcl移动通信有限公司 | Terminal and shield with heat radiation structure |
-
2014
- 2014-06-25 CN CN201480001202.6A patent/CN105519248B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030025180A1 (en) * | 2001-08-01 | 2003-02-06 | International Business Machines Corporation | EMI shielding for semiconductor chip carriers |
| CN201479458U (en) * | 2009-06-26 | 2010-05-19 | 建汉科技股份有限公司 | Radiation structure capable of controlling electromagnetic radiation |
| JP2013110257A (en) * | 2011-11-21 | 2013-06-06 | Panasonic Corp | Substrate fitting apparatus, substrate fitting method, and electronic apparatus |
| CN203136420U (en) * | 2013-03-06 | 2013-08-14 | 惠州Tcl移动通信有限公司 | Terminal and shield with heat radiation structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793724A (en) * | 2016-12-09 | 2017-05-31 | 屈兆辉 | One kind radiating shielding construction |
| CN109874285A (en) * | 2017-12-04 | 2019-06-11 | 和硕联合科技股份有限公司 | Circuit board integrates and screening arrangement |
| CN110392517A (en) * | 2018-04-16 | 2019-10-29 | 纬创资通股份有限公司 | Electronic device and electromagnetic shielding device |
| CN108762451A (en) * | 2018-07-10 | 2018-11-06 | 深圳市优必选科技有限公司 | Heat radiation structure of CPU |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105519248B (en) | 2019-02-19 |
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