CN203590655U - Self-heat-dissipating structure used for large-power absorbing load - Google Patents
Self-heat-dissipating structure used for large-power absorbing load Download PDFInfo
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- CN203590655U CN203590655U CN201320657910.8U CN201320657910U CN203590655U CN 203590655 U CN203590655 U CN 203590655U CN 201320657910 U CN201320657910 U CN 201320657910U CN 203590655 U CN203590655 U CN 203590655U
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- absorbing load
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- radiofrequency
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Abstract
The utility model discloses a self-heat-dissipating structure used for a large-power absorbing load and relates to technical field of radiofrequency communication and broadcast emission. Inputted radiofrequency power is connected with ground via the absorbing load. The structural characteristic of the self-heat-dissipating structure is that the self-heat-dissipating structure also comprises a directional coupler, a radiofrequency-DC converter, and a DC draught fan. By means of the directional coupler, a part of radiofrequency power derived from a radiofrequency power input end is connected with the DC draught fan via the radiofrequency-DC converter. The DC draught fan forcedly cools the absorbing load with air. The self-heat-dissipating structure can be used for dissipating heat of the large-power absorbing load, is not required to be connected with an external power supply, and has characteristics of a small size, simple structure, and a good heat-dissipating effect.
Description
Technical field
The utility model relates to radio communication, broadcast transmission technical field, especially for high-power absorbing load from radiator structure.
Background technology
In radio communication, broadcast transmission system, there are a lot of useless or harmful radio-frequency powers to dissipate with the form of heat, now just need to use radio frequency absorption load, also referred to as dummy load.Powerful dummy load is a main pyrotoxin in emission system, therefore it is carried out to thermal management very important.
In prior art, the radiating mode that absorbing load is adopted is divided into two classes, i.e. natural heat dissipation technology and air blast cooling technology.These two kinds of methods have problem separately.
For natural heat dissipation technology, be that the surface area by increasing absorbing load is realized natural heat loss through convection.Its advantage is simple and reliable for structure, does not need external power supply.But when power capacity is larger, the required area of dissipation of absorbing load is very large, this just causes the bulky, with high costs of absorbing load.
For air blast cooling technology, be, by external blower fan, load is carried out to air blast cooling.Its advantage is that radiating effect will be better than natural heat dissipation greatly.But external blower fan has also brought a series of problem, for example necessary external power supply, connects complicated; External power supply has the possibility of inefficacy, has reduced the reliability of system; Blower fan need to use extra power, has further increased heating, has reduced system effectiveness.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the purpose of this utility model be to provide a kind of for high-power absorbing load from radiator structure.It can be used for the heat radiation of high-power absorbing load, without external power supply, has that volume is little, simple in structure, the feature of good heat dissipation effect.
In order to reach foregoing invention object, the technical solution of the utility model realizes as follows:
For high-power absorbing load from a radiator structure, the radio-frequency power of input is through absorbing load ground connection.Its design feature is that it also comprises directional coupler, radio frequency-direct current transducer and DC fan.Directional coupler, by being connected to DC fan from a part of radio-frequency power of radio-frequency power input shunting through radio frequency-direct current transducer, carries out air blast cooling by DC fan to absorbing load.
The utility model, owing to having adopted said structure, does not need external power supply, but a part for radio-frequency power is converted into direct current power, drives DC fan, has improved radiating effect, has saved again the energy.The utility model adopt from heat dissipation technology, taken into account the advantage of natural heat dissipation and air blast cooling, overcome shortcoming separately simultaneously.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, the utility model comprises directional coupler 1, radio frequency-direct current transducer 2, DC fan 3 and absorbing load 4.The radio-frequency power of input is after directional coupler 1, and a road is through absorbing load 4 ground connection, and another road is connected to DC fan 3 through radio frequency-direct current transducer 2, by DC fan 3, absorbing load 4 is carried out to air blast cooling.
During the utility model work, directional coupler 1 takes out a part of radio-frequency power and is converted into direct current power through radio frequency-direct current transducer 2 from input radio frequency power, and uses this direct current power to drive DC fan 3 to carry out air blast cooling to absorbing load 4.
Use the utility model structure from heat dissipation technology, UHF wave band absorbing load volume can be reduced to originally 1/4, surface temperature reduces by 10 degree simultaneously.
Claims (1)
- For high-power absorbing load from radiator structure, the radio-frequency power of input is through absorbing load (4) ground connection, it is characterized in that, it also comprises directional coupler (1), radio frequency-direct current transducer (2) and DC fan (3), directional coupler (1), by being connected to DC fan (3) from a part of radio-frequency power of radio-frequency power input shunting through radio frequency-direct current transducer (2), carries out air blast cooling by DC fan (3) to absorbing load (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657910.8U CN203590655U (en) | 2013-10-24 | 2013-10-24 | Self-heat-dissipating structure used for large-power absorbing load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657910.8U CN203590655U (en) | 2013-10-24 | 2013-10-24 | Self-heat-dissipating structure used for large-power absorbing load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590655U true CN203590655U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657910.8U Expired - Fee Related CN203590655U (en) | 2013-10-24 | 2013-10-24 | Self-heat-dissipating structure used for large-power absorbing load |
Country Status (1)
| Country | Link |
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| CN (1) | CN203590655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582417A (en) * | 2013-10-24 | 2015-04-29 | 北京同方吉兆科技有限公司 | Self-cooling structure for high-power absorbing load |
-
2013
- 2013-10-24 CN CN201320657910.8U patent/CN203590655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582417A (en) * | 2013-10-24 | 2015-04-29 | 北京同方吉兆科技有限公司 | Self-cooling structure for high-power absorbing load |
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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: 20191024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |