CN206350280U - A kind of set top box with heat dissipation wind channel - Google Patents
A kind of set top box with heat dissipation wind channel Download PDFInfo
- Publication number
- CN206350280U CN206350280U CN201621203211.6U CN201621203211U CN206350280U CN 206350280 U CN206350280 U CN 206350280U CN 201621203211 U CN201621203211 U CN 201621203211U CN 206350280 U CN206350280 U CN 206350280U
- Authority
- CN
- China
- Prior art keywords
- back plate
- circuit board
- top box
- foreboard
- receiving cavity
- 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 - Fee Related
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model is related to digital TV technology, specifically related to a kind of set top box with heat dissipation wind channel, including housing, the housing includes the receiving cavity enclosed by a foreboard, back plate, bottom plate and top cover, circuit board is provided with receiving cavity, circuit board is fixedly installed on top cover rear end, the foreboard is highly less than back plate height, air inlet duct is offered on foreboard, outgassing groove is offered in back plate, it is additionally provided with miniature extraction fan in back plate, receiving cavity bottom is provided with a metal bending knee-piece, the lug boss of the metal bending knee-piece is towards circuit board.The utility model coordinates the combination of heat abstractor and radiating fin, realizes the great heat radiation effect in small space by designing set top box internal heat dissipating air channel.
Description
Technical field
The utility model is related to digital TV technology, and in particular to a kind of set top box with heat dissipation wind channel.
Background technology
With the development of Internet technology, set top box becomes hardware device indispensable in home video experience, passes
The set top box radiating of system is that heat is distributed using heat dissipation metal fin, and it can cause to machine using heat dissipation metal fin
Space requirement inside top box is larger, and the direction for being unfavorable for set top box miniaturization portability is developed, and simultaneously because to set top box
Inner space is more narrow and small, and the heat dissipation metal fin even in indoor design, its heat is also unfavorable for evaporating into exterior space.If
Radiating fin is arranged on outside set top box, then the profile of the excessively ugly unfavorable set top box of outward appearance can be caused to beautify.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of set top box with heat dissipation wind channel, passes through
Set top box internal heat dissipating air channel is designed, coordinates the combination of heat abstractor and radiating fin, realizes the great heat radiation effect in small space.
In order to achieve the above object, the utility model is the technical scheme adopted is that a kind of machine top with heat dissipation wind channel
Box, including housing, the housing include the receiving cavity enclosed by a foreboard, back plate, side plate, bottom plate and top cover, accommodate
Circuit board is provided with cavity, circuit board is fixedly installed on top cover rear end, and the foreboard highly, is opened up highly less than back plate on foreboard
Have to offer in air inlet duct, back plate and miniature extraction fan is additionally provided with outgassing groove, back plate, receiving cavity bottom is provided with a metal bending
Piece, the lug boss of the metal bending knee-piece is towards circuit board.
Further, the circuit board is arranged on a metallic heat radiating plate, and the metallic heat radiating plate is fixedly installed on top cover
Rear end, the metallic heat radiating plate is provided with multiple radiating fins.
Further, AV interfaces, USB interface, power interface and data-interface are offered in the back plate.
Further, the top cover front end is provided with air inlet.
The utility model compared with prior art, has the following advantages that by using above-mentioned technical proposal：
The utility model is high by designing the low back plate of foreboard so that be inside whole receiving cavity it is preceding it is high after low space,
And circuit board is set in receiving cavity top rear, a metal bending knee-piece is designed in bottom rear end, and by the lug boss pair of curved tabs
A heat dissipation wind channel should be entirely constituted in circuit board, foreboard air inlet duct, receiving cavity and interior metal curved tabs, back plate outgassing groove,
And coordinate the miniature extraction fan of back plate the heat that circuit board work is distributed to be taken into the cold air of exterior space out of receiving through air channel
Containment portion, whole Duct design rationally, the radiating effect of maximum is reached using minimum space.
Radiating fin is devised on the utility model also matching design metallic heat radiating plate, the metallic heat radiating plate, further
Improve radiating effect.
Brief description of the drawings
Fig. 1 is the side view of embodiment of the present utility model.
Fig. 2 is the rearview of embodiment of the present utility model.
Fig. 3 is the internal work schematic diagram of embodiment of the present utility model.
Fig. 4 is the metal bending knee-piece wind speed analysis schematic diagram of embodiment of the present utility model.
Embodiment
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
It is used as a specific embodiment, as shown in Figure 1 to Figure 3, a kind of machine with heat dissipation wind channel of the present utility model
Top box, including housing 1, the housing 1 include what is enclosed by a foreboard 11, back plate 12, side plate 15, bottom plate 13 and top cover 14
Circuit board 2 is provided with receiving cavity 10, receiving cavity 10, circuit board 2 is fixedly installed on the rear end of top cover 14, the height of foreboard 11
Less than the height of back plate 12, offered on foreboard 11 offered in air inlet duct 5, back plate 12 be additionally provided with outgassing groove 6, back plate 12 it is miniature
Extraction fan 7, the bottom of receiving cavity 10 is provided with a metal bending knee-piece 3, and the lug boss 31 of the metal bending knee-piece 3 is towards circuit board 2.I.e.
Can be with as seen from Figure 3, the postmedian of metal bending knee-piece 3 has a projection 31, and its raised both sides is then more smooth inclined-plane, tiltedly
Face is slightly cambered, inclined-plane angle substantially at 45 °.
In the present embodiment, the circuit board 2 is arranged on a metallic heat radiating plate 4, and the metallic heat radiating plate 4 is fixedly installed on
Top cover rear end, the metallic heat radiating plate 4 is provided with multiple radiating fins 41.
In the present embodiment, AV interfaces 87, USB interface 81, power interface 82 and data-interface are offered in the back plate 12
83, it is respectively used to patch AV lines 88, USB line 85, power line 86 and data wire 84.
In the present embodiment, the front end of top cover 14 is provided with air inlet 141.
It is high by designing the low back plate of foreboard in the present embodiment so that be inside whole receiving cavity 10 it is preceding it is high after low sky
Between, and circuit board is set in the top rear of receiving cavity 10, a metal bending knee-piece is designed in bottom rear end, and by the projection of curved tabs
Portion corresponds to circuit board, foreboard air inlet duct 5, receiving cavity 10 and interior metal curved tabs, and back plate outgassing groove 6 entirely constitutes one and dissipated
Hot-flow flue, and the heat band for coordinating the miniature extraction fan of back plate that circuit board work is distributed to the cold air of exterior space through air channel
Go out outside receiving cavity 10, whole Duct design rationally, the radiating effect of maximum is reached using minimum space.
With reference to shown in Fig. 4, to the force analysis on the inclined-plane of metal bending knee-piece 3, it is assumed that when the horizontal direction for blowing into air channel
Fly wind when act on wind-force size F1 on 45 ° of inclined-plane, wind-force F1 can be simultaneously by reaction force of the inclined-plane to F1, such as
Fruit does not consider other external force factors, then the reaction force direction that F1 is subject to should be F2 as shown in Figure 4 direction, that is, hangs down
It is straight upward, but wind-force F3 is additionally contemplates that, so, the real wind direction after inclined-plane reaction force should be F4
Direction of a curve.Just because of F4, this part of wind action power, allows the wind for blowing into air channel to form certain wind in circuit board surface
Pressure, this will greatly increase the heat that wind is taken away, and can effectively reduce circuit board temperature.The effect on the inclined-plane of metal bending knee-piece is not only
Only be it is described above it is simple play a part of a reaction force to gas, pass through the force analysis of whole housing：Tiltedly
Resistance is initially formed in face of blowing into the air-flow in air channel, can thus make it that the air velocity of air channel inner bottom part is slack-off, and in air channel
The air velocity of upper part is fast, and according to hydromechanical Bernoulli equation, the speed of fluid is faster, and pressure is just smaller to be understood, wind
Overall pressure inside road is that upper part is small, and lower part is big, so, the pressure inside air channel is overall upward, and this again will be certain
Pressure of the air channel inside wind to circuit board surface is added to degree, this is also beneficial to preferably radiating.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be protection domain of the present utility model.
Claims (4)
1. a kind of set top box with heat dissipation wind channel, it is characterised in that：Including housing, the housing include by a foreboard, back plate,
Circuit board is provided with the receiving cavity that side plate, bottom plate and top cover are enclosed, receiving cavity, circuit board is fixedly installed on after top cover
End, the foreboard is highly less than to offer to offer in air inlet duct, back plate on back plate height, foreboard also to be set in outgassing groove, back plate
There is a miniature extraction fan, receiving cavity bottom is provided with a metal bending knee-piece, the lug boss of the metal bending knee-piece is towards circuit board.
2. a kind of set top box with heat dissipation wind channel according to claim 1, it is characterised in that：The circuit board is arranged on
On one metallic heat radiating plate, the metallic heat radiating plate is fixedly installed on top cover rear end, and the metallic heat radiating plate is provided with multiple heat radiating fins
Piece.
3. a kind of set top box with heat dissipation wind channel according to claim 1, it is characterised in that：Offered in the back plate
AV interfaces, USB interface, power interface and data-interface.
4. a kind of set top box with heat dissipation wind channel according to claim 1, it is characterised in that：The top cover front end is provided with
Air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621203211.6U CN206350280U (en) | 2016-11-08 | 2016-11-08 | A kind of set top box with heat dissipation wind channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621203211.6U CN206350280U (en) | 2016-11-08 | 2016-11-08 | A kind of set top box with heat dissipation wind channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206350280U true CN206350280U (en) | 2017-07-21 |
Family
ID=59316962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621203211.6U Expired - Fee Related CN206350280U (en) | 2016-11-08 | 2016-11-08 | A kind of set top box with heat dissipation wind channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206350280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405826A (en) * | 2020-04-01 | 2020-07-10 | 中国电子科技集团公司第五十四研究所 | Air cooling CPCI time system case air duct structure |
-
2016
- 2016-11-08 CN CN201621203211.6U patent/CN206350280U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405826A (en) * | 2020-04-01 | 2020-07-10 | 中国电子科技集团公司第五十四研究所 | Air cooling CPCI time system case air duct structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20171108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |