CN205119164U - Temperature protection system and high -frequency heating apparatus - Google Patents
Temperature protection system and high -frequency heating apparatus Download PDFInfo
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- CN205119164U CN205119164U CN201520956209.5U CN201520956209U CN205119164U CN 205119164 U CN205119164 U CN 205119164U CN 201520956209 U CN201520956209 U CN 201520956209U CN 205119164 U CN205119164 U CN 205119164U
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- temperature
- protection system
- fan
- temperature protection
- heater members
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Abstract
The utility model relates to the field of household appliances, a temperature protection system and high -frequency heating apparatus is disclosed, temperature protection system includes: infrared temperature sensors detects the temperature of the device that generates heat, the fan, it is right the device that generates heat is lowered the temperature, and controlling means, with infrared temperature sensors connects, according to the temperature control who detects the rotational speed of fan can promptly and accurately be located in the problem of haircut calorimeter spare high temperature through this temperature protection system, has greatly improved solve the problem's real -time.
Description
Technical field
The utility model relates to household appliance technical field, particularly, relates to a kind of temperature protection system and thermatron.
Background technology
Thermatron is the cooker that the heat using microwave to produce carrys out heat food.When this cooker is when cooking work pattern, its microwave generating apparatus (such as magnetron) can generate the heat of high temperature.As shown in Figure 1, in traditional micro-wave oven product, usually by fan 13, high-frequency heating device (such as magnetron 21) is lowered the temperature.Carry out monitoring temperature by temperature detect switch (TDS) 1, principle is when contact surface temperature acquires a certain degree, and disconnects the electric current supplied.
In the micro-wave oven product that some is traditional, the fan adopted can not speed change.Microwave generating apparatus caloric value operationally can uprise along with the change of its power output.Can not the fan of speed change owing to using, semiconductor high frequency power occur single source be operated in low power output time, high-revolving fan can produce larger noise, thus affects the experience of cooking equipment.
In the prior art using variable speed fan, the circuit board of thermatron with the addition of temperature detecting module (such as on circuit boards to any temperature-sensitive components, thermistor etc.), its principle is that the heat that any temperature-sensitive components produces passes to temperature detecting module by heat conducting mode, thus the resistance of the thermistor in temperature detection is changed.Temperature detecting module now can export corresponding temperature data to the drive circuit of fan, thus changes the rotating speed of fan.
But, when using integrated temperature detecting module on circuit boards to carry out temperature detection, need, by heat conducting mode, temperature is passed to temperature detecting module.The method needs the regular hour, so can not feed back the change of heater members timely, thus temperature detecting module detects temperature anomaly and has just been burned to cause some sensitive components also not waited until.
In addition, when circuit board or heating element more time, need to add the temperature detecting module of respective amount, and then add the difficulty of production cost and circuit design.
Utility model content
The purpose of this utility model is to provide a kind of temperature protection system and thermatron, and this temperature protection system can process the too high problem of heater members temperature timely and accurately, drastically increases the real-time of dealing with problems.
To achieve these goals, the utility model provides a kind of temperature protection system, and described temperature protection system comprises: infrared temperature sensor, detects the temperature of heater members; Fan, lowers the temperature to described heater members; And control device, be connected with described infrared temperature sensor, control the rotating speed of described fan according to detected temperature.
Preferably, described fan comprises arrangements for speed regulation, and described control device controls the rotating speed of described fan by described arrangements for speed regulation.
Preferably, described temperature protection system also comprises fan power supply controller, and described control device controls described fan power supply controller according to detected temperature and is supplied to described fan voltage.
Preferably; described temperature protection system also comprises heater members power-supply controller of electric; when detected temperature is equal to or higher than predetermining circuit shutoff temperature, described control device controls described heater members power-supply controller of electric to be stopped powering to described heater members or reducing the power output of described heater members.
Preferably, described temperature protection system also comprises memory, and record is equal to or higher than with detected the information that predetermining circuit turns off the temperature correlation of temperature.
Preferably, described infrared temperature sensor is Multi-point infrared sensor.
Preferably, described heater members comprises radio-frequency generator.
Preferably, described infrared temperature sensor is arranged on top or the side of described radio-frequency generator place circuit board.
The utility model also provides a kind of thermatron, and described thermatron comprises said temperature protection system.
Preferably, described thermatron is micro-wave oven.
By technique scheme, infrared temperature sensor detects the temperature of heater members, and control device is according to the rotating speed of detected temperature controlled fan.Because infrared temperature sensor can detect the surface temperature reflection of the heater element in scanning area in real time, this process time is extremely short and without the need to temperature transmission, thus drastically increase real-time and accuracy.
Other features and advantages of the utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of the temperature protection system in prior art micro-wave oven;
Fig. 2 is the structured flowchart of the temperature protection system provided according to the utility model;
Fig. 3 is the structural representation of the temperature protection system according to a kind of embodiment of the utility model; And
Fig. 4 is the flow chart of the temperature protection process provided according to the utility model.
Description of reference numerals
1 temperature detect switch (TDS) 10 temperature protection system
11 infrared temperature sensor 12 control device
13 fan 20 heater members
21 magnetron 22 radio-frequency generators
23 circuit board 24 infrared scan regions
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
Fig. 2 is the structured flowchart of the temperature protection system provided according to the utility model.As shown in Figure 2, the temperature protection system 10 that the utility model provides can comprise: infrared temperature sensor 11, detects the temperature of heater members 20; Fan 13, lowers the temperature to described heater members; And control device 12, be connected with described infrared temperature sensor 11, control the rotating speed of described fan 13 according to detected temperature.Can Timeliness coverage process the too high problem of heater members 20 temperature by temperature protection system 10, can the temperature of detection heater members 20 accurately and timely, the rotating speed of fan can be regulated simultaneously according to temperature, thus control the sound level of fan.
In order to realize the adjustment to rotation speed of the fan, described fan can comprise arrangements for speed regulation, and described control device 12 can control the rotating speed of described fan by described arrangements for speed regulation.Certainly; the adjustment that those skilled in the art can realize rotation speed of the fan by alternate manner; such as; described temperature protection system 10 can also comprise fan power supply controller; described control device 12 can control described fan power supply controller and be supplied to described fan voltage according to detected temperature, thus realizes the adjustment to rotation speed of the fan.By the adjustment to rotation speed of the fan, the sound level controlling fan while satisfied cooling needs can be controlled.
In order to realize the further protection to heater members 20; described temperature protection system can also comprise heater members power-supply controller of electric; when detected temperature turns off temperature higher than predetermining circuit, described control device 12 controls described heater members power-supply controller of electric to be stopped powering to described heater members 20 or reducing the power output of described heater members 20.
In addition, described temperature protection system can also comprise memory, and record and the detected information turning off the temperature correlation of temperature higher than predetermining circuit, so that follow-up searching and analyzing power-off reason.The information of wherein said temperature correlation can be the form such as temperature data or voltage signal.
In the prior art, when circuit board or heating element more time, need to add the temperature detecting module of respective amount, and then add the difficulty of production cost and circuit design.The utility model can adopt Multi-point infrared sensor to realize and carry out temperature detection to whole circuit board or multiple heating element, thus reduces the difficulty of production cost and circuit design.
Fig. 3 is the structural representation of the temperature protection system according to a kind of embodiment of the utility model.With reference to figure 3, when radio-frequency generator 22 works and performs heating mode, single Multi-point infrared temperature sensor 11 can periodically (such as, the circulation of several seconds) the surface temperature reflection of detection radio-frequency generator 22 in infrared scan region 24, and detected temperature is passed to control device 12.
Wherein, infrared temperature sensor 11 can be arranged on top or the side of described radio-frequency generator 22 place circuit board, such as can be fixed on radio-frequency generator 22 above the circuit board 23 fixed or side, whole circuit board can be detected and/or the temperature of each components and parts on it simultaneously.Temperature protection process is described in detail below with reference to Fig. 4.
In step 401 place, radio-frequency generator 22 performs heating mode; In step 402 place, infrared temperature sensor 11 detects the temperature of radio-frequency generator 22; In step 403 place, whether the temperature detected by judgement is equal to or greater than predetermining circuit and turns off temperature; If, then in step 404 place, control device 12 can control the power output (such as control radio-frequency generator 22 carries out work according to the power output of 10%) that described heater members power-supply controller of electric stops powering to radio-frequency generator 22 or reducing radio-frequency generator 22; Then be back to step 402, simultaneously in step 405 place, the temperature information of circuit shut-down can be stored in memory by control device 12.
If in step 403 place, detected temperature is less than predetermining circuit and turns off temperature, then in step 406 place, judge whether fan starts; If do not started, then in step 408 place, whether the temperature detected by judgement is equal to or greater than starting fan temperature; If so, then in step 409 place, power to fan 13, start fan 13, be then back to step 402 place; If temperature is less than starting fan temperature, be then back to step 402 place.
If in step 406 place, judge that fan 13 starts, then in step 407 place, control device 12 can regulate the input voltage of fan 13 to regulate rotation speed of the fan according to the corresponding relation of temperature fan voltage in holder, certainly, also rotation speed of the fan can be regulated according to the corresponding relation of temperature in holder and rotation speed of the fan.
Because infrared temperature sensor accurately can detect the temperature of heater element, can find temperature anomaly more rapidly, the temperature protection system that therefore the utility model provides can promptly and accurately judge temperature, drastically increases real-time; Then, according to temperature feedback, rotation speed of the fan is regulated, to reduce noise and energy consumption; In addition, single Multi-point infrared sensor can be adopted simultaneously can to detect the variations in temperature of whole circuit board or multiple components and parts, reduce the difficulty of production cost and circuit design.
Below preferred embodiment of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a temperature protection system, is characterized in that, described temperature protection system comprises:
Infrared temperature sensor, detects the temperature of heater members;
Fan, lowers the temperature to described heater members; And
Control device, is connected with described infrared temperature sensor, controls the rotating speed of described fan according to detected temperature.
2. temperature protection system according to claim 1, is characterized in that, described fan comprises arrangements for speed regulation, and described control device controls the rotating speed of described fan by described arrangements for speed regulation.
3. temperature protection system according to claim 1, is characterized in that, described temperature protection system also comprises fan power supply controller, and described control device controls described fan power supply controller according to detected temperature and is supplied to described fan voltage.
4. temperature protection system according to claim 1; it is characterized in that; described temperature protection system also comprises heater members power-supply controller of electric; when detected temperature is equal to or higher than predetermining circuit shutoff temperature, described control device controls described heater members power-supply controller of electric to be stopped powering to described heater members or reducing the power output of described heater members.
5. temperature protection system according to claim 4, is characterized in that, described temperature protection system also comprises memory, and record is equal to or higher than with detected the information that predetermining circuit turns off the temperature correlation of temperature.
6. temperature protection system according to any one of claim 1 to 5, is characterized in that, described infrared temperature sensor is Multi-point infrared sensor.
7. temperature protection system according to any one of claim 1 to 5, is characterized in that, described heater members comprises radio-frequency generator.
8. temperature protection system according to claim 7, is characterized in that, described infrared temperature sensor is arranged on top or the side of described radio-frequency generator place circuit board.
9. a thermatron, is characterized in that, described thermatron comprises the temperature protection system according to any one of the claims 1 to 8.
10. thermatron according to claim 9, is characterized in that, described thermatron is micro-wave oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956209.5U CN205119164U (en) | 2015-11-25 | 2015-11-25 | Temperature protection system and high -frequency heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956209.5U CN205119164U (en) | 2015-11-25 | 2015-11-25 | Temperature protection system and high -frequency heating apparatus |
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| Publication Number | Publication Date |
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| CN205119164U true CN205119164U (en) | 2016-03-30 |
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| CN201520956209.5U Active CN205119164U (en) | 2015-11-25 | 2015-11-25 | Temperature protection system and high -frequency heating apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647872A (en) * | 2016-12-09 | 2017-05-10 | 国网电力科学研究院武汉南瑞有限责任公司 | Low-temperature-resistant low-frequency heating device for transformers |
| CN111096070A (en) * | 2017-09-11 | 2020-05-01 | Bsh家用电器有限公司 | Household appliance with temperature detector |
| WO2020207112A1 (en) * | 2019-04-09 | 2020-10-15 | 中兴通讯股份有限公司 | Heat dissipation testing method and system, and heating device |
-
2015
- 2015-11-25 CN CN201520956209.5U patent/CN205119164U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647872A (en) * | 2016-12-09 | 2017-05-10 | 国网电力科学研究院武汉南瑞有限责任公司 | Low-temperature-resistant low-frequency heating device for transformers |
| CN111096070A (en) * | 2017-09-11 | 2020-05-01 | Bsh家用电器有限公司 | Household appliance with temperature detector |
| CN111096070B (en) * | 2017-09-11 | 2022-03-25 | Bsh家用电器有限公司 | Household appliance with temperature detector |
| WO2020207112A1 (en) * | 2019-04-09 | 2020-10-15 | 中兴通讯股份有限公司 | Heat dissipation testing method and system, and heating device |
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