CN203590669U - Square wave pulse jet flow generator - Google Patents
Square wave pulse jet flow generator Download PDFInfo
- Publication number
- CN203590669U CN203590669U CN201320763924.8U CN201320763924U CN203590669U CN 203590669 U CN203590669 U CN 203590669U CN 201320763924 U CN201320763924 U CN 201320763924U CN 203590669 U CN203590669 U CN 203590669U
- Authority
- CN
- China
- Prior art keywords
- wave pulse
- square wave
- jet flow
- square
- generator
- 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
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a square wave pulse jet flow generator which uses the alternating characteristic of the alternating current power supply and the electromagnetic induction to generate the periodic square wave pulse jet flow. The square wave pulse jet flow generator mainly include: a gas collection and storage system, a square wave pulse airflow generator and an impact jet flow system. The square wave pulse jet flow generator is characterized: a micro pump sucks cooling gas into a compression cylinder; air in the compression cylinder passes through a pressure control valve and goes into the square wave pulse generator. A square nozzle of the square wave pulse generator is wound with a coil; the coil of an adjacent nozzle is wound in an opposite direction; and a magnetic baffle is arranged between adjacent nozzles. After the alternating current of a certain frequency is connected, the periodic magnetic field is produced in the coil; the magnetic field attracts the magnetic baffle and closes one of the nozzles, so that the periodic square wave pulse airflow. The periodic square wave pulse airflow directly impacts the high temperature electronic chip, and the heat transfer is enhanced, so that the fast cooling is realized.
Description
Technical field
The invention belongs to a kind of cooling system of microelectronics technology, specifically a kind of square-wave pulse fluidic generator.
Background technology
Along with the development of microelectric technique, modern electronic equipment further improves performance index, power density, reliability requirement etc., causes its density of heat flow rate constantly to rise, and only depends on traditional approach heat radiation cannot meet its heat radiation requirement.For the problems referred to above, can adopt freely ventilates reduces the thermal resistance of radiator with forced ventilation, but these methods need to consume larger pump merit conventionally, and high heat flux also can produce thermal noise or dark current.In a word, high heat flux electronic device is very urgent for the demand of efficient cooling technology.
Impact jet flow cooling technology is a kind of efficient and economic cooling technology, because the lip-deep flow boundary layer that flow process is short and impacted is thin, thereby makes stationary point annex produce very strong heat transfer effect.Meanwhile, this heat transfer type can be saved large quantity space, is applicable to being very much applied to local heat radiation.By introducing mechanical pulsing stream, can further improve the heat transfer efficiency of impact jet flow.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of square-wave pulse fluidic generator, utilizes the alternation characteristic of AC power and electromagnetic induction to produce square-wave pulse jet.
A kind of square-wave pulse fluidic generator, comprise pressure Micropump, cooling chamber and nozzle, it is characterized in that: the coil winding-direction of adjacent nozzle is contrary, and centre exists magnetic baffle plate, after the alternating current of logical certain frequency, in coil, produce periodical magnetic filed, magnetic field suction magnetic baffle plate seals one of them nozzle, thereby produces periodic square wave air pulse.
Wherein said air pulse generating means can pass through AC power, switch and slide rheostat regulation and control square-wave pulse jet.
The beneficial effect that the present invention can produce: utilize the alternation characteristic of AC power and electromagnetic induction to produce square-wave pulse jet.Square-wave pulse fluidic generator can be saved space, jet waveform stabilization, and constant phase difference, improves impact jet flow radiating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of square-wave pulse generator
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the present invention enters compression cylinder 2 by pressure Micropump 1 pressurised driving gas cooling medium, and the interior gas of compression cylinder 2 enters cooling chamber 4 by pressure-control valve 3 and moves to nozzle array 6.Rectangular nozzle array 4 is comprised of equally spaced dividing plate 6, has magnetic baffle plate 7 between adjacent nozzle.Magnetic baffle plate 7 periodically seals its left and right sides nozzle, and therefore air-flow produces periodic square-wave pulse air-flow by nozzle array 5, and directly impacts electronic chip 8, forms square-wave pulse jet, and the surface heat transfer of strengthening electronic chip 8 is realized cooling object fast.
As shown in Figure 2, be wound with coil 9a and the 9b of opposite direction on adjacent two rectangular nozzle 5a and 5b, rectangular nozzle is processed by high-permeability material, can produce the magnetic field of opposite direction after coil electricity, has magnetic baffle plate 7 between adjacent nozzle.Coil 9a and 9b, swept resistance 12, switch 11 and AC power 10 form closed-loop path, and after energising, the magnetic direction of coil 9a and 9b is contrary, repel each other or inhale mutually with magnetic baffle plate 7, and therefore magnetic baffle plate 7 can periodically alternately seal rectangular nozzle 5a and 5b.In the present invention, use power supply for AC power 10, by controlling the frequency of FREQUENCY CONTROL square-wave pulse of alternating current, the whole circuit of regulation and control that can be real-time by swept resistance 12 and switch 11.
Claims (2)
1. a square-wave pulse fluidic generator, comprise pressure Micropump (1), cooling chamber (4), nozzle (5), it is characterized in that: the coil winding-direction of adjacent nozzle (5) is contrary, and there is magnetic baffle plate (7) in centre, after the alternating current of logical certain frequency, in coil (9), produce periodical magnetic filed, magnetic field suction magnetic baffle plate (7) seals one of them nozzle (5), thereby produces periodic square wave air pulse.
2. square-wave pulse fluidic generator according to claim 1, is characterized in that: wherein said air pulse generating means can pass through AC power (10), switch (11) and slide rheostat (12) regulation and control square-wave pulse jet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763924.8U CN203590669U (en) | 2013-11-19 | 2013-11-19 | Square wave pulse jet flow generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763924.8U CN203590669U (en) | 2013-11-19 | 2013-11-19 | Square wave pulse jet flow generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590669U true CN203590669U (en) | 2014-05-07 |
Family
ID=50588502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320763924.8U Expired - Fee Related CN203590669U (en) | 2013-11-19 | 2013-11-19 | Square wave pulse jet flow generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648255A (en) * | 2013-11-19 | 2014-03-19 | 张蕾 | Square wave pulse jet flow generator |
| CN109736902A (en) * | 2019-03-07 | 2019-05-10 | 南京航空航天大学 | A kind of pulsing jet heat-exchange system for active clearance control |
-
2013
- 2013-11-19 CN CN201320763924.8U patent/CN203590669U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648255A (en) * | 2013-11-19 | 2014-03-19 | 张蕾 | Square wave pulse jet flow generator |
| CN103648255B (en) * | 2013-11-19 | 2017-01-04 | 中国计量大学 | Square wave pulse jet generator |
| CN109736902A (en) * | 2019-03-07 | 2019-05-10 | 南京航空航天大学 | A kind of pulsing jet heat-exchange system for active clearance control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101511146A (en) | Zero mass jet flow exciter of medium countercheck discharging plasma | |
| CN203590669U (en) | Square wave pulse jet flow generator | |
| CN203618277U (en) | Jet cooling system for airborne electronic equipment | |
| CN202514228U (en) | Temperature equilibrating system jetting fluid for thermal conduction used in electrical equipment | |
| CN106488689B (en) | The working method of radiator | |
| CN103363758B (en) | A kind of refrigerator bottom condenser heat abstractor | |
| CN109618481A (en) | The plasma synthesis jet-flow excitor of low reynolds number condition | |
| CN103153023A (en) | Pulse jet flow finned cooling device | |
| CN103648255B (en) | Square wave pulse jet generator | |
| CN204555794U (en) | Jet cooling mechanism and jet radiator | |
| Liu et al. | Impingement cooling performance analysis and improvement of synthetic jets for electronic devices | |
| Hidalgo et al. | Direct actuation of small-scale motions for enhanced heat transfer in heated channels | |
| CN202841823U (en) | Pulsed jet fin cooling device | |
| CN106704672A (en) | Self-excitation and energy-consumption-free pulse airflow generating device | |
| CN202652794U (en) | Forced air-cooling radiator using synthetic jet technology | |
| CN204227670U (en) | Air-conditioning condenser spraying and sprinkling evaporation type foam metal reinforced heat exchanger | |
| CN103884065B (en) | Magnetic refrigerator air-conditioning system | |
| CN111231318A (en) | From heat dissipation type 3D printing material tray | |
| JP2014175476A (en) | Cooling device | |
| CN203498414U (en) | Laminar flow plasma surface point-like thermal treatment system | |
| CN204165219U (en) | A kind of health energy-saving water heater Special electromagnetic heater | |
| JP2014116398A (en) | Cooling apparatus | |
| Jacob et al. | Experimental investigations on synthetic jet impingement heat transfer | |
| CN203907567U (en) | Steam heating system | |
| CN104501646A (en) | Jet flow heat radiationmechanism and jet flow heat radiator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |