CN205070776U - Novel energy -conserving fictitious load - Google Patents
Novel energy -conserving fictitious load Download PDFInfo
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- CN205070776U CN205070776U CN201520895471.3U CN201520895471U CN205070776U CN 205070776 U CN205070776 U CN 205070776U CN 201520895471 U CN201520895471 U CN 201520895471U CN 205070776 U CN205070776 U CN 205070776U
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Abstract
The utility model discloses a novel energy -conserving fictitious load, including radio frequency owner transmission circuit and exchangeable supply circuit, radio frequency owner transmission circuit includes the output of radio frequency main road, and radio frequency main road output connection has the fictitious load, exchangeable supply circuit is connected with direct current cooling blower, and exchangeable supply circuit acquires the work of electric power driven direct current cooling blower through electromagnetic induction from radio frequency owner transmission circuit. The utility model discloses simple structure is practical, the energy consumption is low, wind -force is strong, the cooling effect is better, makes fictitious load heat in normal work lower, and it is more stable to work, and the range of application is wide.
Description
Technical field
The utility model belongs to circuit field, particularly relates to one and is applied to power source, the fields such as radio-frequency power supply, the novel energy-conserving dummy load driving direct cooling blower fan normally to work by mutual inductance power supply circuits.
Background technology
Air-cooled dummy load matching used with conventional radio frequency power-supply system, the supply power mode of its cooling blower work is outside 220V Alternating Current Power Supply.Prior art Problems existing:
1. dummy load absorbed power in actual use, heat is comparatively large, and use the cooling blower of externally fed to make it lower the temperature, the consumed power of blower fan is tens watts, increases the overall energy consumption of rf power system.
2. the supply power mode of cooling blower is outside 220V Alternating Current Power Supply, needs independent wiring in actual use, makes troubles to operation.
Utility model content
For the utility model that solves the problem provides a kind of novel energy-conserving dummy load.The utility model is simple and practical, energy consumption is low, wind-force is strong, cooling effect is better, makes dummy load heat in normal work lower, works more stable, applied range.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
A kind of novel energy-conserving dummy load, comprises the main transmission circuit of radio frequency and mutual inductance power supply circuits; The main transmission circuit of described radio frequency comprises radio frequency main road and exports, and radio frequency main road exports and is connected with dummy load; Mutual inductance power supply circuits are connected with direct cooling blower fan, and mutual inductance power supply circuits obtain the work of electrical energy drive direct cooling blower fan by electromagnetic induction from the main transmission circuit of radio frequency.
Further improvement, described mutual inductance power supply circuits comprise mutual inductance circuit, and mutual inductance circuit is connected with load circuit and rectification circuit; Rectification circuit is connected with filter network, and filter network is connected with direct cooling blower fan.
Further improvement, described mutual inductance circuit comprises instrument transformer, and instrument transformer is connected with load circuit and rectification circuit.
Further improvement, described load circuit comprises the first load and the second load, and the first load and the second load are arranged in parallel.
Further improvement, described rectification circuit comprises diode, and described diode is connected with filter network.
Further improvement, described diode is cache switching diodes CMF02.
Further improvement, described filter network comprises the first electric capacity, and the first electric capacity is connected with high frequency choke coil, and high frequency choke coil is connected with the second electric capacity, electrochemical capacitor and direct cooling blower fan; First electric capacity is connected rectification circuit with high frequency choke coil.
Further improvement, described mutual inductance power supply circuits are connected with power display.
Further improvement, the power output of the main transmission circuit of described radio frequency is 500W, and operating frequency is 13.56MHz.
Further improvement, the rated current of described direct cooling blower fan is 0.36A, and rated voltage is 12V.
Advantage of the present utility model:
1. mutual inductance power supply circuits are for rf power system dummy load design, by changing circuit components, can make working band broadening, being applied to the dummy load of the rf power system of different frequency range.
2. without the need to externally fed, by mutual inductance power supply circuits, with electromagnetic induction way to take power from radio frequency transmission main road output to the power of dummy load be coupled out Partial Power drive cooling blower normally work, the energy consumption of rf power system is reduced, energy-conserving and environment-protective, patching operations is convenient.
3. dummy load heat in normal work is lower, works more stable.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
Embodiment
Embodiment
A kind of novel energy-conserving dummy load as shown in Figure 1, comprises the main transmission circuit of radio frequency and mutual inductance power supply circuits; The main transmission circuit of described radio frequency comprises radio frequency main road and exports (RF output), and radio frequency main road exports and is connected with 50 ohm of dummy load R3; Mutual inductance power supply circuits are connected with direct cooling blower fan M1.Mutual inductance power supply circuits obtain electric energy by electromagnetic induction from the main transmission circuit of radio frequency, drive the work of direct cooling blower fan.
During test, the main transmission circuit power output of radio frequency is 500W, and operating frequency is 13.56MHz.The rated current of direct cooling blower fan M1 is 0.36A, and rated voltage is 12V.Mutual inductance power supply circuits can be connected with power display, to show the size of mutual inductance power supply circuits coupled power.
Mutual inductance power supply circuits comprise mutual inductance circuit, and mutual inductance circuit is connected with load circuit and rectification circuit; Rectification circuit is connected with filter network, and filter network is connected with direct cooling blower fan.
Mutual inductance circuit comprises instrument transformer L1, and instrument transformer L1 is connected with load circuit and rectification circuit.Instrument transformer L1 in mutual inductance circuit adopts the magnetic core of high frequency, low-loss, high q-factor, is formed by high temperature resistant wire coiling.
Load circuit comprises the first load R1 and the second load R2, and the first load R1 and the second load R2 is arranged in parallel.
Rectification circuit comprises diode D1, and the specification of diode D1 is cache switching diodes CMF02, and diode D1 is connected with filter network.Cache switching diodes CMF02 junction capacitance is little, and the maximum operating frequency of permission is high, and loss is little, ensure that the job requirement of cooling blower.
Filter network comprises the first electric capacity C1, and the first electric capacity C1 is connected with high frequency choke coil L2, and high frequency choke coil L2 is connected with the second electric capacity C2, electrochemical capacitor C3 and direct cooling blower fan M1; First electric capacity C1 is connected diode D1 with high frequency choke coil L2.Adopt high frequency choke coil L2 and electric capacity composition π type filter circuit in filter network, the High-frequency and low-frequency component in effective filtering AC signal, obtains pure direct current signal.
The utility model without the need to external 220V AC power, by mutual inductance power supply circuits, with electromagnetic induction way to take power from the main transmission circuit of radio frequency output to the power of dummy load be coupled out Partial Power drive cooling blower normally work.Use direct cooling blower fan to replace AC blower fan, its rotating speed is high, wind-force is strong, cooling effect is better.Simultaneously can according to requirements, installation power display unit, the size of display mutual inductance power supply circuits coupled power.
The explanation of above example just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a novel energy-conserving dummy load, is characterized in that, comprises the main transmission circuit of radio frequency and mutual inductance power supply circuits; The main transmission circuit of described radio frequency comprises radio frequency main road and exports, and radio frequency main road exports and is connected with dummy load; Mutual inductance power supply circuits are connected with direct cooling blower fan, and mutual inductance power supply circuits obtain the work of electrical energy drive direct cooling blower fan by electromagnetic induction from the main transmission circuit of radio frequency.
2. novel energy-conserving dummy load as claimed in claim 1, it is characterized in that, described mutual inductance power supply circuits comprise mutual inductance circuit, and mutual inductance circuit is connected with load circuit and rectification circuit; Rectification circuit is connected with filter network, and filter network is connected with direct cooling blower fan.
3. novel energy-conserving dummy load as claimed in claim 2, it is characterized in that, described mutual inductance circuit comprises instrument transformer, and instrument transformer is connected with load circuit and rectification circuit.
4. novel energy-conserving dummy load as claimed in claim 2, it is characterized in that, described load circuit comprises the first load and the second load, and the first load and the second load are arranged in parallel.
5. novel energy-conserving dummy load as claimed in claim 2, it is characterized in that, described rectification circuit comprises diode, and described diode is connected with filter network.
6. novel energy-conserving dummy load as claimed in claim 5, it is characterized in that, described diode is cache switching diodes CMF02.
7. novel energy-conserving dummy load as claimed in claim 2, it is characterized in that, described filter network comprises the first electric capacity, and the first electric capacity is connected with high frequency choke coil, and high frequency choke coil is connected with the second electric capacity, electrochemical capacitor and direct cooling blower fan; First electric capacity is connected rectification circuit with high frequency choke coil.
8. novel energy-conserving dummy load as claimed in claim 1, it is characterized in that, described mutual inductance power supply circuits are connected with power display.
9. novel energy-conserving dummy load as claimed in claim 1, it is characterized in that, the power output of the main transmission circuit of described radio frequency is 500W, and operating frequency is 13.56MHz.
10. novel energy-conserving dummy load as claimed in claim 1, it is characterized in that, the rated current of described direct cooling blower fan is 0.36A, and rated voltage is 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895471.3U CN205070776U (en) | 2015-11-11 | 2015-11-11 | Novel energy -conserving fictitious load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895471.3U CN205070776U (en) | 2015-11-11 | 2015-11-11 | Novel energy -conserving fictitious load |
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| Publication Number | Publication Date |
|---|---|
| CN205070776U true CN205070776U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520895471.3U Active CN205070776U (en) | 2015-11-11 | 2015-11-11 | Novel energy -conserving fictitious load |
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| CN (1) | CN205070776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971247A (en) * | 2018-09-30 | 2020-04-07 | 西门子(深圳)磁共振有限公司 | Dummy load structure of radio frequency transmission system, manufacturing method thereof and radio frequency transmission system |
-
2015
- 2015-11-11 CN CN201520895471.3U patent/CN205070776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971247A (en) * | 2018-09-30 | 2020-04-07 | 西门子(深圳)磁共振有限公司 | Dummy load structure of radio frequency transmission system, manufacturing method thereof and radio frequency transmission system |
| CN110971247B (en) * | 2018-09-30 | 2022-04-15 | 西门子(深圳)磁共振有限公司 | Dummy load structure of radio frequency transmission system, manufacturing method thereof and radio frequency transmission system |
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