CN106954369A - A kind of unpowered heat radiating device for unmanned mounted circuit board - Google Patents
A kind of unpowered heat radiating device for unmanned mounted circuit board Download PDFInfo
- Publication number
- CN106954369A CN106954369A CN201710160920.3A CN201710160920A CN106954369A CN 106954369 A CN106954369 A CN 106954369A CN 201710160920 A CN201710160920 A CN 201710160920A CN 106954369 A CN106954369 A CN 106954369A
- Authority
- CN
- China
- Prior art keywords
- heat
- radiating
- circuit board
- diffuser
- unpowered
- 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.)
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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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
-
- 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]
-
- 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
- H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Present invention relates particularly to a kind of unpowered heat radiating device for unmanned mounted circuit board, including be fixed on unmanned plane shell ventilation unit, be fixed on the heat-radiating substrate of circuit board lower surface, and connection ventilation unit and heat-radiating substrate connecting tube；The lower surface of heat-radiating substrate is provided with multiple raised along the hollow structures radiating of longitudinal arrangement；Two corresponding heat emission holes in position are provided with each radiating projection, are contacted successively by heat-conducting copper pipe；Ventilation unit includes the pipe throat of contraction section, the diffuser of hollow round table structure, connection contraction section top surface and the diffuser top surface of hollow round table structure；The negative tube communicated therewith is fixed with pipe throat；One end of connecting tube is connected with heat-conducting copper pipe, and the other end is connected with negative tube.The construction for heat radiating device is simple, easy for installation, good heat dissipation effect, and do not need engine provide power just can realize high-efficient radiating function, reduce the burden of engine.
Description
Technical field
The invention belongs to unmanned air vehicle technique field, and in particular to a kind of unpowered radiating for unmanned mounted circuit board is filled
Put.
Background technology
Unmanned air vehicle technique is the new and high technology that China gives priority in recent years, is aeronautical technology, electronic technology, air communications
The synthesis of the cutting edge technologies such as technology, new material technology, is important indicator of the reflection country in aviation field research strength.With
The development of unmanned air vehicle technique, the performance to each side of unmanned plane is proposed very big requirement.
The manipulation of unmanned plane realizes that control system includes circuit board and control program, and the electricity by control system
Road plate is located in the frame of unmanned plane.The operation or test of unmanned plane need control system constantly to produce control instruction, circuit board
Heat is also produced while control instruction is constantly produced, the heat will bring many unfavorable shadows to the body of unmanned plane
Ring, for example, deform.Worse, heat is too high, can influence the environment around unmanned plane, because circuit board is controlling nobody
Environmental factor is needed to refer to during machine flight, so flight of the radiating of unmanned mounted circuit board to unmanned plane plays an important role.
Existing unmanned plane product is mainly radiated by fan against forms such as component blowing, aluminum alloy heat sinks,
Radiating effect is bad.
Chinese invention patent CN205686617U discloses a kind of new unmanned plane heat abstractor, including semiconductor refrigerating
Piece, radiator, radiator include water tank, fin, and water tank is located at base side, and water tank lower seal is provided with water pump, water pump
It is sealedly connected with heat dissipation copper pipe, fin and is provided with groove, heat dissipation copper pipe is arranged in groove, and fin is vertically arranged in base
On, fan is installed above radiator, fan is connected with motor electric wire.The heat abstractor adds unmanned plane during flying heavy burden,
Needing engine to provide power could work, and be increased burden in addition for hardware design.
The content of the invention
In order to solve the difference of radiating effect present in prior art and need to provide the problem of power could be operated, the present invention
There is provided a kind of unpowered heat radiating device for unmanned mounted circuit board, good heat dissipation effect, it is not necessary to which engine is additionally provided dynamic
Power.The technical problem to be solved in the present invention is achieved through the following technical solutions：
A kind of unpowered heat radiating device for unmanned mounted circuit board, including the ventilation unit, solid being fixed on unmanned plane shell
The heat-radiating substrate of circuit board lower surface is scheduled on, and connects the connecting tube of the ventilation unit and heat-radiating substrate；
It is raised that the lower surface of the heat-radiating substrate is provided with multiple radiatings along longitudinal arrangement；
The raised radiating is hollow structure；
It is provided with two corresponding heat emission holes in position in each radiating projection, and one in adjacent radiating projection
Heat emission hole toward each other, contacted successively by heat-conducting copper pipe by the heat emission hole；
The ventilation unit includes the contraction section, the diffuser of hollow round table structure, connection contraction section top surface of hollow round table structure
With the pipe throat of diffuser top surface；
Negative tube is fixed with the pipe throat, the negative tube is connected with the pipe throat；
One end of the connecting tube is connected with the heat-conducting copper pipe, and the other end of the connecting tube is connected with the negative tube.
Further, above-mentioned radiating projection is no less than 3.
Further, above-mentioned radiating projection is equally spaced.
Further, the area of above-mentioned heat-radiating substrate is slightly larger than the area of circuit board.
Further, the angle of above-mentioned contraction section is more than the angle of the diffuser.
Further, the angle of above-mentioned contraction section is 20 ~ 35 °, and the angle of the diffuser is 15~20 degree.
Beneficial effects of the present invention：
The construction for heat radiating device is simple, easy for installation, in use, heat-radiating substrate to be arranged on to the lower section of circuit board, ventilation unit
The below or above of shell is longitudinally mounted to, with connecting tube by heat-radiating substrate and plenum, the spy of heat-radiating substrate
Different design adds area of dissipation, and in the process of running, the hot-air in radiating projection passes through connecting tube, negative tube stream to unmanned plane
Being discharged to diffuser, good heat dissipation effect, and do not need engine to provide power just can realize heat sinking function, reduce engine
Burden.
The present invention is described in further details below with reference to drawings and Examples.
Brief description of the drawings
Fig. 1 is the schematic diagram of unpowered heat radiating device of the present invention.
In figure：1st, ventilation unit；11st, contraction section；12nd, diffuser；13rd, pipe throat；14th, negative tube；2nd, heat-radiating substrate；
3rd, connecting tube；4th, radiate raised；5th, heat emission hole；6th, heat-conducting copper pipe；7th, circuit board.
Embodiment
Reach technological means and effect that predetermined purpose is taken for the present invention is expanded on further, below in conjunction with accompanying drawing and reality
Embodiment, architectural feature and its effect of example to the present invention are applied, is described in detail as follows.
Embodiment 1：
A kind of unpowered heat radiating device for unmanned mounted circuit board, including the ventilation unit 1, solid being fixed on unmanned plane shell
The heat-radiating substrate 2 of circuit board lower surface is scheduled on, and connects the connecting tube 3 of the ventilation unit 1 and heat-radiating substrate 2.Heat-radiating substrate 2
Lower surface be provided with multiple radiating projections 4 along longitudinal arrangement, radiating projection 4 is hollow structure, is set in each radiating projection 4
Two corresponding heat emission holes in position 5 are equipped with, and the adjacent heat emission hole 5 radiated in projection 4 is relative to each other, heat emission hole 5 leads to
Heat-conducting copper pipe 6 is crossed to contact successively.Ventilation unit 1 includes the contraction section 11 of hollow round table structure, the diffuser of hollow round table structure
12nd, negative tube 14, negative pressure are fixed with the pipe throat 13 of the connection top surface of contraction section 11 and the top surface of diffuser 12, pipe throat 13
Pipe 14 is connected with pipe throat 13.One end of connecting tube 3 is connected with heat-conducting copper pipe 6, and the other end and the negative tube 14 of connecting tube 3 connect
Connect.
The construction for heat radiating device is simple, easy for installation, in use, heat-radiating substrate is arranged on to the lower section of circuit board, ventilation
Device is longitudinally mounted to the below or above of shell, with connecting tube by heat-radiating substrate and plenum, heat-radiating substrate
Particular design add area of dissipation, in the process of running, the hot-air in radiating projection passes through connecting tube, negative pressure to unmanned plane
Pipe flow to diffuser discharge, good heat dissipation effect, and do not need engine provide power just can realize heat sinking function, reduce hair
The burden of motivation.
Radiating projection 4 is no less than 3, just can guarantee that the surface temperature that circuit board body is effectively reduced in limited space
Degree.Radiating projection 4 is equally spaced, and ensure that radiating is uniform.
The area of heat-radiating substrate 2 is slightly larger than the area of circuit board 7, it is ensured that circuit board can all touch heat-radiating substrate 2, reach
To the purpose of high efficiency and heat radiation.
The angle of contraction section 11 is more than the angle of diffuser 12, and the pressure of increase negative pressure mouthful improves the discharge effect of hot-air
Rate.It is preferred that, the angle of contraction section 11 is 20 ~ 35 °, and the angle of diffuser 12 is 15~20 degree.Angle can be according to unmanned plane
Load and heat dispersal situations are adjusted, and angle is too big, can increase resistance during unmanned plane during flying；Angle is too small, and radiating effect is not
It is preferable.
Ventilation unit is thin metal material or plastic material, the light material of preferred mass, it is to avoid the weight of increase unmanned plane
And increase the load of engine.
The diameter of pipe throat 13 is identical with the top surface of hollow round table contraction section 11 and the top surface diameter of hollow round table diffuser 12,
The one end of connecting tube 3 is connected through a screw thread with longitudinal heat-conducting copper pipe 22 or horizontal heat-conducting copper pipe 21, the other end and negative pressure of connecting tube 3
Pipe 14 is connected through a screw thread.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (6)
1. a kind of unpowered heat radiating device for unmanned mounted circuit board, it is characterised in that：Including being fixed on unmanned plane shell
Ventilation unit（1）, be fixed on the heat-radiating substrate of circuit board lower surface（2）, and connect the ventilation unit（1）And heat-radiating substrate
（2）Connecting tube（3）；
The heat-radiating substrate（2）Lower surface to be provided with multiple radiatings along longitudinal arrangement raised（4）；
The radiating is raised（4）For hollow structure；
Each radiating is raised（4）On be provided with two corresponding heat emission holes in position（5）, and the adjacent radiating is raised
（4）On a heat emission hole（5）Toward each other, the heat emission hole（5）Pass through heat-conducting copper pipe（6）Contact successively；
The ventilation unit（1）Include the contraction section of hollow round table structure（11）, hollow round table structure diffuser（12）, connection
Contraction section（11）Top surface and diffuser（12）The pipe throat of top surface（13）；
The pipe throat（13）On be fixed with negative tube（14）, the negative tube（14）With the pipe throat（13）Connection；
The connecting tube（3）One end and the heat-conducting copper pipe（6）Connection, the connecting tube（3）The other end and the negative pressure
Pipe（14）Connection.
2. unpowered heat radiating device as claimed in claim 1, it is characterised in that：The radiating is raised（4）No less than 3.
3. unpowered heat radiating device as claimed in claim 2, it is characterised in that：The radiating is raised（4）It is equally spaced.
4. unpowered heat radiating device as claimed in claim 3, it is characterised in that：The heat-radiating substrate（2）Area be slightly larger than
Circuit board（7）Area.
5. unpowered heat radiating device as claimed in claim 4, it is characterised in that：The contraction section（11）Angle be more than it is described
Diffuser（12）Angle.
6. unpowered heat radiating device as claimed in claim 5, it is characterised in that：The contraction section（11）Angle for 20 ~
35 °, the diffuser（12）Angle be 15~20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160920.3A CN106954369A (en) | 2017-03-17 | 2017-03-17 | A kind of unpowered heat radiating device for unmanned mounted circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160920.3A CN106954369A (en) | 2017-03-17 | 2017-03-17 | A kind of unpowered heat radiating device for unmanned mounted circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106954369A true CN106954369A (en) | 2017-07-14 |
Family
ID=59473694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710160920.3A Withdrawn CN106954369A (en) | 2017-03-17 | 2017-03-17 | A kind of unpowered heat radiating device for unmanned mounted circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106954369A (en) |
-
2017
- 2017-03-17 CN CN201710160920.3A patent/CN106954369A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170714 |
|
| WW01 | Invention patent application withdrawn after publication |