CN2335143Y - Microwave leakage detector for domestic microwave oven - Google Patents
Microwave leakage detector for domestic microwave oven Download PDFInfo
- Publication number
- CN2335143Y CN2335143Y CN 97249427 CN97249427U CN2335143Y CN 2335143 Y CN2335143 Y CN 2335143Y CN 97249427 CN97249427 CN 97249427 CN 97249427 U CN97249427 U CN 97249427U CN 2335143 Y CN2335143 Y CN 2335143Y
- Authority
- CN
- China
- Prior art keywords
- receiving antenna
- detector
- detecting device
- resonance receiving
- substrate
- 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
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 14
- NQBKFULMFQMZBE-UHFFFAOYSA-N n-bz-3-benzanthronylpyrazolanthron Chemical compound C12=CC=CC(C(=O)C=3C4=CC=CC=3)=C2C4=NN1C1=CC=C2C3=C1C1=CC=CC=C1C(=O)C3=CC=C2 NQBKFULMFQMZBE-UHFFFAOYSA-N 0.000 claims description 13
- 230000003019 stabilising effect Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract 3
- 230000000087 stabilizing effect Effects 0.000 abstract 2
- 238000009966 trimming Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- Constitution Of High-Frequency Heating (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
A microwave leakage detector for domestic microwave oven is composed of an insulating medium substrate, a passive metal patch, a stabilizing capacitor, a trimming potentiometer and a microampere meter, a resonant receiving antenna, a by-pass capacitor, a crystal detector and a shunt resistor, which are arranged on the upper surface of said substrate, a receiving antenna connected to said passive metal patch via a metal via hole, a crystal detector connected to said crystal detector, a load consisting of said trimming potentiometer and microampere meter, and a stabilizing capacitor connected to both ends of said load in parallel. The utility model discloses simple structure does not adopt active device and power supply, and the cost is low, the measurement is accurate, dependable performance, convenient operation, be suitable for the family and use.
Description
The utility model relates to the microwave irradiation power detecting instrument, especially a kind of household microwave oven microwave leakage detecting device.
In recent years, household microwave oven was popularized in a large number, brought great convenience for people's life.But, use the ultrahigh frequency radiation that micro-wave oven brought that tissue is had potential harmfulness, especially because of problems such as product quality, extended active duties, it is even more serious to the health influence that microwave leakage takes place, and is very necessary so regularly detect the microwave leakage power of household microwave oven.The general Microwave Measurement instrument that uses is because of its volume is big, complex structure, cost an arm and a leg, use reason such as inconvenience, so be not suitable for family's use.At present though easy testing tool is arranged, poor performance, measuring accuracy does not reach requirement.
The deficiency that the purpose of this utility model exists at prior art and design a kind of simple in structure, cost is low, measurement is accurate, dependable performance, easy to operate household microwave oven microwave leak detector.
The purpose of this utility model is achieved in that a kind of household microwave oven microwave leak detector, and it has an insulating medium substrate, and passive metal paster, stabilising condenser, trimmer potentiometer and microampere meter are housed on its upper surface of base plate; The resonance receiving antenna is housed on the base lower surface, pass capacitor, pyron detector and shunt resistance, the passive metal paster is by metallic vias and the conducting of resonance receiving antenna, receiving antenna and pyron detector conducting, pyron detector is in parallel with shunt resistance, trimmer potentiometer and microampere meter are composed in series load, its two ends are parallel with stabilising condenser, the discrete capacitor that pass capacitor is made up of the two-sided medium substrate that has metal patch, be positioned at the same plane of resonance receiving antenna on, trimmer potentiometer is a pull-up resistor, the resonance receiving antenna is little band metal card chip antenna, and pyron detector is a high-frequency diode.The principle of work of this detecting device is: be sent to the RC low frequency filter of being made up of pass capacitor, pull-up resistor and microampere meter after the microwave signal process pyron detector detection that the resonance receiving antenna is received, low frequency filter is isolated the survey frequency signal, be the micro-wave oven service frequency signal, and the high frequency wave spectrum of the tested signal of elimination, signal after pass capacitor is handled is sent to microampere meter through trimmer potentiometer, adopts the additional passive metal patch to mate with realization as the part of resonant antenna simultaneously.The effect of trimmer potentiometer is the indication of microampere meter to be adjusted to meet medically required standard, the effect of stabilising condenser is the shake that is used for reducing the indicator pointer that the pulse characteristic owing to micro-wave oven work causes, indicate the place of safety and the explosive area of micro-wave oven microwave leakage power by the pen travel meter full scale of microampere meter, remind the user could continue to use or stop using this micro-wave oven, avoid microwave leakage that health is produced harm.
Adopt the technical program, its advantage is not use active device and power supply, simple in structure, cost is low, measurements is accurate, dependable performance, easy to operate, be suitable for family's use.Equally also can be used for detecting the high frequency radiation power or the microwave leakage power of miscellaneous equipment and device.
Below in conjunction with accompanying drawing in detail the utility model is described in detail.
Fig. 1 is the utility model structural front view.
Fig. 2 is the utility model structure rear view.
Fig. 3 is the utility model electrical principles figure.
As Figure 1-3, a kind of household microwave oven microwave leak detector, it has an insulating medium substrate (1), and passive metal paster (5), stabilising condenser (9), trimmer potentiometer (7) and microampere meter (8) are housed on its substrate (1) upper surface; On substrate (1) lower surface resonance receiving antenna (2) is housed, pass capacitor (6), pyron detector (3) and shunt resistance (4), passive metal paster (5) is by metallic vias (10) and resonance receiving antenna (2) conducting, receiving antenna (2) and pyron detector (3) conducting, pyron detector (3) is in parallel with shunt resistance (4), trimmer potentiometer (7) is composed in series load with microampere meter (8), its two ends are parallel with stabilising condenser (9), the discrete capacitor that pass capacitor (6) is made up of the two-sided medium substrate (1) that has metal patch, be positioned at the same plane of resonance receiving antenna (2) on, an one pole piece occurs with the form of right angle metal patch (6), and another pole piece is the passive metal paster (5) of medium substrate (1) another side, trimmer potentiometer (7) is a pull-up resistor, resonance receiving antenna (2) is little band metal card chip antenna, additional passive metal patch (11) mates with realization as the part of resonance receiving antenna (2), and pyron detector (3) is a high-frequency diode.
Claims (8)
1, a kind of household microwave oven microwave leak detector, it has an insulating medium substrate (1), it is characterized in that: passive metal paster (5), stabilising condenser (9), trimmer potentiometer (7) and microampere meter (8) are housed on substrate (1) upper surface; Resonance receiving antenna (2), pass capacitor (6), pyron detector (3) and shunt resistance (4) are housed on substrate (1) lower surface, passive metal paster (5) passes through metallic vias (10) and resonance receiving antenna (2) conducting, antenna (2) and pyron detector (3) conducting.
2, detecting device according to claim 1 is characterized in that: resonance receiving antenna (2) is little band metal card chip antenna.
3, according to claim 1,2 described detecting devices, it is characterized in that: additional passive metal patch group (11) is mated with realization as the part of resonance receiving antenna (2).
4, detecting device according to claim 1 is characterized in that: trimmer potentiometer (7) is composed in series load with microampere meter (8), and its two ends are parallel with stabilising condenser (9).
5, detecting device according to claim 1 is characterized in that: pyron detector (3) is in parallel with shunt resistance (4).
6, detecting device according to claim 1, it is characterized in that: the discrete capacitor that pass capacitor (6) is made up of the two-sided medium substrate (1) that has metal patch, be positioned at the same plane of resonance receiving antenna (2) on, an one pole piece occurs with the form of right angle metal patch (6), and another pole piece is the passive metal paster (5) of medium substrate (1) another side.
7, according to claim 1,4 described detecting devices, it is characterized in that: trimmer potentiometer (7) is a pull-up resistor.
8, detecting device according to claim 1 is characterized in that: pyron detector (3) is a high-frequency diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249427 CN2335143Y (en) | 1997-11-17 | 1997-11-17 | Microwave leakage detector for domestic microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249427 CN2335143Y (en) | 1997-11-17 | 1997-11-17 | Microwave leakage detector for domestic microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2335143Y true CN2335143Y (en) | 1999-08-25 |
Family
ID=33956339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97249427 Expired - Fee Related CN2335143Y (en) | 1997-11-17 | 1997-11-17 | Microwave leakage detector for domestic microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2335143Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132383A (en) * | 2014-08-18 | 2014-11-05 | 广东美的厨房电器制造有限公司 | Control method and control device of microwave oven and microwave oven |
| CN109195244A (en) * | 2018-10-29 | 2019-01-11 | 广东美的厨房电器制造有限公司 | Microwave leakage detection method and microwave equipment |
-
1997
- 1997-11-17 CN CN 97249427 patent/CN2335143Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132383A (en) * | 2014-08-18 | 2014-11-05 | 广东美的厨房电器制造有限公司 | Control method and control device of microwave oven and microwave oven |
| CN109195244A (en) * | 2018-10-29 | 2019-01-11 | 广东美的厨房电器制造有限公司 | Microwave leakage detection method and microwave equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |