CN101191745A - Infrared ear temperature thermometer - Google Patents
Infrared ear temperature thermometer Download PDFInfo
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- CN101191745A CN101191745A CNA2006101608679A CN200610160867A CN101191745A CN 101191745 A CN101191745 A CN 101191745A CN A2006101608679 A CNA2006101608679 A CN A2006101608679A CN 200610160867 A CN200610160867 A CN 200610160867A CN 101191745 A CN101191745 A CN 101191745A
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Abstract
The invention relates to a tool for temperature measurement, in particular to an infrared ear thermometer which is formed by an infrared sensing device, a body unit and a bellows radiator, wherein, a fan is arranged in the bellows radiator, the bellows radiator is arranged behind the infrared sensing device. The infrared ear thermometer is arranged behind the bellows radiator, the control circuit can start and shut the fan under the preset conditions, so when the tool is clinically used, the redundant temperature around a thermopile sensor can be taken away by the airflow of the fan further to ensure that the modules in an infrared temperature sensor are kept within a steady temperature range, thereby retaining the normal work of the infrared temperature sensor and assuring the correctness of temperature measurement.
Description
Technical field
The present invention relates to a kind of thermometric instrument, specifically is a kind of infrared ear temperature thermometer.
Background technology
The instrument that is usually used in measuring body temperature now mainly contains mercury thermometer and electronic thermometer.The principle of mercury thermometer is to adopt traditional contact thermal equilibrium, must spend the result that time of growing just can obtain measuring, also the severe contamination of mercury reach human body had too big injury, eliminated by people gradually.Electronic thermometer then is to judge final thermally equilibrated temperature to measure the temperature change value that obtains minimum in the short time than mercury thermometer, thereby there is certain precision difference, electronic thermometer must see through after the tediously long and complicated disinfecting process before clinical use, just can guarantee safety and repeated use, and to the requirement of circuit than higher, metering circuit stable detection after the start also quite bothers, measuring accuracy is also lower, usually brings the puzzlement of measuring inconvenience owing to the connection of sensor circuit is bad.So just need thermometry and device that measurement accurately and fast, does not have injury and more meets hommization, the invention of infrared ear temperature thermometer has at this moment just in time remedied the deficiency of conventional temperature meter.
The infrared ear temperature thermometer of commonly using at present adopts with the infrared ray temperature detector reception width of cloth and penetrates the infrared ray that thermal source sends, can in the extremely short time, calculate temperature results, thereby remedied the deficiency of traditional mercury thermometer, on the other hand because the structure of ear inside intercepts its thermal radiation that sheds easily, and adopt and measure the suitable in the use facility of ear temperature fast, only need during measurement partly to insert the probe of infrared ear temperature thermometer in the duct, press the measurement button and in the extremely short time, just can obtain measurement result, therefore its popularity rate should be more and more high, especially for the body temperature measurement of children and emergency treatment.
But the infrared temperature measurement mechanism of commonly using at present still has weak point.General infrared ear temperature thermometer, big city is provided with the infrared ray temperature detector in its measuring junction, this temperature detector is to record temperature with contact or noncontact mode, the principle of its utilization, technology mainly are the infrared radiation that temperature the produced importings with source to be measured, by the thermopile sensor sensing in the temperature detector device, and relatively reach conversion via the temperature difference of cold and hot two contacts in the thermopile sensor, can convert measured temperature output to numeral again and show; The temperature of hot junction is that the infrared radiation that temperature produced in source to be measured imports, the temperature of cold junction is the temperature of thermopile sensor body, generally obtain the cold junction method of temperature and be temperature with near thermosensitive resistance measurement metal shell thermopile sensor, yet, infrared ear temperature thermometer is when clinical use, thermopile sensor is subjected near the temperature influence its duct and rises, because the different heat-transfer rates of unlike material, make the temperature of cold junction and metal shell produce difference, and then influence thermometric accuracy.In order to solve the puzzlement of above-mentioned intensification, located by prior art adopts clad metal piece around the infrared ray temperature detector, mainly be to absorb external heat energy and carry out local heat radiation by derby, its radiating principle is to utilize the little and hot capacious physical phenomenon of specific heat of derby, make infrared ear temperature thermometer when it pops one's head near duct, body temperature heat near the infrared ray temperature detector disperses fast, yet, the mode of this heat dispersing only is suitable for the timing of of short duration use infrared temperature, can the of short duration constant temperature of effectively keeping the infrared ray temperature detector, if, use the infrared temperature timing continuously, the body temperature heat that is accumulated in the derby still can't disappear, and then influences the constant temperature of infrared ray temperature detector, and has influenced the accuracy of measurement result.At this phenomenon,, can obtain correct and efficient temperature measurement by the device of this temperature constant if a kind of device that the temperature that influences the infrared ray temperature detector can be taken away and guaranteed infrared ray temperature detector and near temperature constant thereof can be provided.
Summary of the invention
The object of the present invention is to provide a kind of infrared ear temperature thermometer, thereby a kind of measurement mechanism more accurately is provided.
To achieve these goals, the technical solution used in the present invention is: a kind of infrared ear temperature thermometer, be made of infrared ray sensing apparatus, main unit and bellows radiator, be provided with a fan in the described bellows radiator, bellows radiator is placed on infrared ray sensing apparatus rear.
More excellent, described fan is arranged on back upper place or the back lower place or the dead astern of infrared ray sensing apparatus, preferably fan is arranged on the dead astern of infrared ray sensing apparatus, is used for guaranteeing the temperature constant that the infrared ray sensing apparatus is interior;
And described bellows radiator is led the way by blower tray, fan and wind direction and is constituted, and wherein wind direction is led the way and is arranged between infrared ray sensing apparatus and the fan;
And described main unit is made of display, shift knob, printed circuit board (PCB), battery, main body loam cake and main body lower cover, and wherein display and shift knob, printed circuit board (PCB) and battery are connected to each other with conductive materials or turning circuit and show measurement data;
And described infrared ray sensing apparatus comprises an infrared ray temperature detector and two or above derby, wherein said two or above derby coating infrared ray temperature detector;
And, described infrared ray sensing apparatus comprises an infrared ray temperature detector, a waveguide pipe and two or above derby, wherein said waveguide pipe is placed between measuring end and the infrared ray temperature detector, two or above derby all coat infrared ray temperature detector and all or part of coating waveguide pipe, further, described infrared ray temperature detector is made of jointly optical filter, thermistor, thermopile sensor and metal shell, and wherein thermopile sensor has hot and cold two contacts.
After infrared ear temperature thermometer is installed described bellows radiator, described control circuit can start and cut out fan under preset condition, thus, when clinical use, near the thermopile sensor unnecessary temperature can be taken away by fan airstream, and then the assembly in the infrared ray temperature detector is remained in the stable temperature range, and so just can keep the operate as normal of infrared ray temperature detector, guaranteed to measure the accuracy of temperature.
Description of drawings
Fig. 1 is a general assembly drawing;
Fig. 2 is a diagrammatic cross-section of the present invention;
Fig. 3 is an infrared ray structure of temperature detector synoptic diagram;
Fig. 4 is the first embodiment of the invention structural representation;
Fig. 5 is the second embodiment of the invention structural representation;
Fig. 6 is the third embodiment of the invention structural representation;
Fig. 7 is the fourth embodiment of the invention structural representation.
Embodiment
Below in conjunction with accompanying drawing the present invention is elaborated, as depicted in figs. 1 and 2, the invention discloses a kind of infrared ear temperature thermometer, include ear thermometer main body 1, fan 2, fan cover 201, infrared ray temperature detector 3, waveguide pipe 4, metal module 5, wind direction conduit 6, optical filter 7, dust cap 8, battery cover 9 and switch knob 10 and constitute jointly.Wherein fan 2, infrared ray temperature detector 3, waveguide pipe 4, metal module 5, wind direction conduit 6 and fan cover 201 constitute bellows radiator, and wherein wind direction conduit 6 is arranged between infrared ray sensing apparatus and the fan 2.Infrared ray temperature detector 3 is arranged in the infrared ray sensing apparatus.Optical filter 7 is arranged in infrared ray temperature detector 3.Main unit is made of ear thermometer main body 1, dust cap 8, battery cover 9 and switch knob 10.Bellows radiator is placed on infrared ray sensing apparatus rear.Described fan 2 is arranged on back upper place or the back lower place or the dead astern of infrared ray sensing apparatus, preferably fan 2 is arranged on the dead astern of infrared ray sensing apparatus, is used for guaranteeing the temperature constant that the infrared ray sensing apparatus is interior.
As Fig. 1 and shown in Figure 3, as shown in Figure 2 a thermopile sensor 301 is arranged in the infrared ray temperature detector, comprise thermistor 304, cold junction 303 and hot junction 302.Thermistor 304 is positioned on the infrared ray temperature detector metal drain pan, and it is used to measure the temperature of the cold junction 303 of thermopile sensor 301 at that time.When infrared ear temperature thermometer is measured measured object, the infrared radiation amount of hot junction 302 reflection measured objects.303 of the hot junction 302 of thermopile sensor 301 and cold junctions produce voltage because of temperature difference, this voltage obtains temperature difference between hot junction 302 and the cold junction 303 through conversion, add cold junction 303 temperature of measuring by thermistor 304, so just can obtain the temperature of measured object.
Because when the skin temperature of thermopile sensor 301 changes, the infrared ray that it emitted also changes thereupon, and can emit in the lump on the hot junction of thermoelectric pile, and the gross energy that hot junction 302 is reflected is changed, and just produces error during the accounting temperature difference.In order to obtain correct measurement, thermoelectric pickup 301 should be maintained in the stable temperature, so probe must adopt suitable temperature isolation measure.The present invention has proposed following four kinds of embodiments in order further to address this problem in conjunction with Fig. 4, Fig. 5, Figure 6 and Figure 7.
As shown in Figure 4, in bellows radiator, be provided with a fan 2 and be placed on infrared ray temperature detector 3 rears, as the back upper place or the back lower place, the optimum that present embodiment adopts be the position in dead astern; Be provided with thermopile sensor 301, metal shell 305 and optical filter 7 in the described infrared ray temperature detector 3; Near the other main unit in metal shell 305 bottoms or back that described thermistor 304 is arranged at the thermopile sensor 301 are made of display, shift knob 10, printed circuit board (PCB) 104, battery 901, main body loam cake 103 and main body lower cover 105, and wherein display and shift knob 10, printed circuit board (PCB) 104, electrode 902 and battery 901 are connected to each other with conductive materials or turning circuit and show measurement data.And printed circuit board (PCB) 104 is connected to each other with described infrared ray temperature detector and constitutes the perfect measurement circuit.Described main body loam cake 103 and main body lower cover 105 are box-like, all component all is arranged in the box, wherein the middle and upper part of main body loam cake 103 is provided with an air intake vent 101, be provided with an air outlet 102 in the bottom of main body lower cover 105, install battery and connect after the circuit, covering battery cover 9 just can operate as normal.So just constituted a bellows constant temperature structure, can make thermopile sensor 301 temperature keep stable.
Be illustrated in figure 5 as second embodiment of the present invention synoptic diagram, its concrete course of work and embodiment one are in like manner, but its characteristics are the infrared ray sensing apparatus and comprise an infrared ray temperature detector 3 and a waveguide pipe 4 that wherein said waveguide pipe 4 is placed between measuring end and the infrared ray temperature detector 3.
As shown in Figure 6, be third embodiment of the present invention synoptic diagram, its concrete course of work and embodiment one are in like manner, different is that described infrared ray sensing apparatus comprises an infrared ray temperature detector 3, a waveguide pipe 4 and two or above derby 5, wherein said waveguide pipe 4 is placed between measuring end and the infrared ray temperature detector 3, two or above derby 5 whole infrared ray temperature detector 3 and all or part of coating waveguide pipe 4 of coating.
As shown in Figure 7, be fourth embodiment of the present invention synoptic diagram, its concrete course of work and embodiment one in like manner, different is that described infrared ray sensing apparatus comprises an infrared ray temperature detector 3 and two or above derby 5, wherein said two or above derby 5 coat infrared ray temperature detectors 3.
The present invention adopts the bellows constant temperature structure, can directly make infrared ray temperature detector 3 temperature keep stable.When infrared ray ear temperature thermometer probe contact testee, the temperature of measured object can influence metal shell 305 temperature of thermopile sensor 301, and conduct to the thermistor 304 that touches with the metal bottom shell joint, make 303 of the cold junctions of thermistor 304 and thermopile sensor 301 form the temperature difference, that is the temperature measured of thermistor 304 has been not equal to the temperature of cold junction 303 this moment, during metal shell 305 temperature changes of thermopile sensor 301, the infrared ray that it radiates out also changes thereupon, and can emit in the lump on the hot junction 302 of thermopile sensor 301, the gross energy that hot junction 302 is reflected is changed, just produce error during the accounting temperature difference.In four embodiment of the present invention, adopted fan 2, waveguide pipe 4, derby 5 respectively, carried out different arrangement modes and can adopt different embodiments at different environment in conjunction with thermopile sensor 301.Thereby near the unnecessary temperature the thermopile sensor 301 can be taken away by fan airstream, and then the assembly in the infrared ray temperature detector 3 is remained in the stable temperature range, so just can keep infrared ray temperature detector 3 operate as normal, guarantee to measure the accuracy of temperature.
Though the present invention is described with reference to current better embodiment; but those skilled in the art will be appreciated that; above-mentioned better embodiment only is used for illustrating the present invention; be not to be used for limiting protection scope of the present invention; any within the spirit and principles in the present invention scope; any modification of being done, equivalence replacement, improvement etc. all should be included within the scope of the present invention.
Claims (14)
1. an infrared ear temperature thermometer is characterized in that being made of infrared ray sensing apparatus, main unit and bellows radiator, is provided with a fan in the described bellows radiator, and bellows radiator is placed on infrared ray sensing apparatus rear.
2. infrared ear temperature thermometer according to claim 1, it is characterized in that described fan is arranged on back upper place or the back lower place or the dead astern of infrared ray sensing apparatus, preferably fan is arranged on the dead astern of infrared ray sensing apparatus, is used for guaranteeing the temperature constant that the infrared ray sensing apparatus is interior.
3. infrared ear temperature thermometer according to claim 1 is characterized in that described bellows radiator is led the way by blower tray, fan and wind direction to constitute, and wherein wind direction is led the way and is arranged between infrared ray sensing apparatus and the fan.
4. infrared ear temperature thermometer according to claim 1, it is characterized in that described main unit is made of display, shift knob, printed circuit board (PCB), battery, main body loam cake and main body lower cover, wherein display and shift knob, printed circuit board (PCB) and battery are connected to each other with conductive materials or turning circuit and show measurement data.
5. infrared ear temperature thermometer according to claim 4 is characterized in that described conductive materials is winding displacement, conductive rubber, electric wire, metal clips, plugs and sockets or wherein binomial or above combination.
6. infrared ear temperature thermometer according to claim 4 is characterized in that described printed circuit board (PCB), infrared ray sensing apparatus and bellows radiator are connected to each other the complete metering circuit of common formation.
7. infrared ear temperature thermometer according to claim 4, it is characterized in that described main body loam cake and main body lower cover are box-like, all component all is arranged in the box, and wherein the middle and upper part of main body loam cake is provided with an air intake vent, is provided with an air outlet in the bottom of main body lower cover.
8. infrared ear temperature thermometer according to claim 1 is characterized in that containing in the described main unit control circuit and is connected with described fan, and control fan startup and close.
9. infrared ear temperature thermometer according to claim 1 is characterized in that described infrared ray sensing apparatus comprises an infrared ray temperature detector.
10. infrared ear temperature thermometer according to claim 9 is characterized in that described infrared ray temperature detector is made of jointly optical filter, thermistor, thermopile sensor and metal shell, and wherein thermopile sensor has hot and cold two contacts.
11. infrared ear temperature thermometer according to claim 1 is characterized in that described infrared ray sensing apparatus comprises a red outside line temperature detector and two or above derby, wherein said two or above derby coating infrared ray temperature detector.
12. infrared ear temperature thermometer according to claim 11 is characterized in that described infrared ray temperature detector is made of jointly optical filter, thermistor, thermopile sensor and metal shell, wherein thermopile sensor has hot and cold two contacts.
13. infrared ear temperature thermometer according to claim 1, it is characterized in that described infrared ray sensing apparatus comprises an infrared ray temperature detector, a waveguide pipe and two or above derby, wherein said waveguide pipe is placed between measuring end and the infrared ray temperature detector, and two or above derby all coat infrared ray temperature detector and all or part of coating waveguide pipe.
14. infrared ear temperature thermometer according to claim 13 is characterized in that described infrared ray temperature detector is made of jointly optical filter, thermistor, thermopile sensor and metal shell, wherein thermopile sensor has hot and cold two contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101608679A CN101191745A (en) | 2006-11-30 | 2006-11-30 | Infrared ear temperature thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101608679A CN101191745A (en) | 2006-11-30 | 2006-11-30 | Infrared ear temperature thermometer |
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| Publication Number | Publication Date |
|---|---|
| CN101191745A true CN101191745A (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101608679A Pending CN101191745A (en) | 2006-11-30 | 2006-11-30 | Infrared ear temperature thermometer |
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| Country | Link |
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| CN (1) | CN101191745A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171669A (en) * | 2018-10-19 | 2019-01-11 | 深圳聚瑞华实业有限公司 | A kind of domestic intelligent ear thermometer |
| WO2021012800A1 (en) * | 2019-07-19 | 2021-01-28 | 深圳爱博龙科技有限公司 | Infrared body-temperature measuring figurine |
| CN113390518A (en) * | 2021-06-04 | 2021-09-14 | 杭州百脉科技有限公司 | Ear thermometer with high measurement accuracy and measurement method thereof |
-
2006
- 2006-11-30 CN CNA2006101608679A patent/CN101191745A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171669A (en) * | 2018-10-19 | 2019-01-11 | 深圳聚瑞华实业有限公司 | A kind of domestic intelligent ear thermometer |
| WO2021012800A1 (en) * | 2019-07-19 | 2021-01-28 | 深圳爱博龙科技有限公司 | Infrared body-temperature measuring figurine |
| CN113390518A (en) * | 2021-06-04 | 2021-09-14 | 杭州百脉科技有限公司 | Ear thermometer with high measurement accuracy and measurement method thereof |
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Open date: 20080604 |