CN1212803C - Quick response electrothermometer - Google Patents
Quick response electrothermometer Download PDFInfo
- Publication number
- CN1212803C CN1212803C CN 02150330 CN02150330A CN1212803C CN 1212803 C CN1212803 C CN 1212803C CN 02150330 CN02150330 CN 02150330 CN 02150330 A CN02150330 A CN 02150330A CN 1212803 C CN1212803 C CN 1212803C
- Authority
- CN
- China
- Prior art keywords
- metal head
- clinical thermometer
- lead
- sensing element
- heat
- 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
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to a rapid reaction electronic thermometer with a heat conducting structure, which aims to make the sensed temperature quickly reach heat balance and rapid heat conduction in order to make a temperature gauge rapidly display the temperature. The present invention has the structure that in a metallic head used for contacting the measuring position of a measured person in front of a measuring end of the thermometer, a sensing element and a connected conducting wire are contacted and appressed with the inner wall of the metallic head to make the conducting wire part not become a periphery heat quantity dissipation part of the sensing element any longer, and furthermore, the conducting wire part becomes the source for heat quantity compensation. When the metallic head reaches the heat balance by natural heating when the measured person is measured outside, due to the fact that the conducting wire is appressed with the inner wall of the metallic head, the heat balance is also instantly reached, and the peripheral heat balance of the sensing element is also reached so that the correct temperature can be rapidly displayed and the time required for measurement is decreased.
Description
Technical field
The present invention relates to a kind of design of fast reaction electronic clinical thermometer, refer in particular on its structure clinical thermometer measuring end the place ahead be used for the contacted metal head of testee measurement sites in, sensing element and the lead that joins contacted with the inwall of metal head be close to, because sensing element and the heat conductivity of lead own are good, when the metal head thermal balance, around lead and the sensing element that is reach thermal balance, its induced temperature can reach quick conductive and rapid thermally equilibrated function, to shorten the measurement time.
Background technology
Traditional electronic clinical thermometer is rather consuming time when measuring temperature, 1980～nineteen ninety the electronic clinical thermometer for some improvement types can shorten the time, but used some expensive elements more.The improvement of some recent electronic clinical thermometers, the principle of its utilization mainly focuses on volumetrical the dwindling of heat, and minimizing is used for the sensing element of measuring temperature and near on every side heat scatters and disappears to other parts in a large number through metal head, so that reach thermal balance near the sensing element rapidly, shorten the measurement time.Yet reach the good thermal balance and the effect of heat conduction, must effectively dwindle the each several part component size, so its material cost also can increase, and with regard to the thermally equilibrated speed of reaching, except metal end and interior filled media thereof may be to other parts be conducted that a large amount of heat effects are thermally equilibrated and reached rapidly, be connected in the plain conductor of sensing element in order to combine with main circuit, heat conductivity is good, may become and outwards conduct the major part of scattering and disappearing heat energy in this structure near the sensing element, this is that clinical thermometer design before the present invention is not all considered, also is center of gravity of the present invention place.Below list the shortcoming of existing electronic clinical thermometer:
1, existing electronic clinical thermometer (seeing also shown in Figure 1) includes the metal head 22 that measuring end 21, that clinical thermometer body 10, is connected with body 10 is located at measuring end 21 ends, and clinical thermometer body 10 includes display element 13 and key switch 14.
See also shown in Figure 2, the metal head 22 of being located at measuring end 21 ends of existing electronic clinical thermometer includes cloudy (Thermistor) 23 of temperature sensitive electricity of a globule shape, this thermo-sensitive resistor 23 is fixed by the heat-conducting glue 24 of filling in metal head 22, and is connected with lead 25.
See also shown in Figure 3, when the beginning measuring temperature, heat conducts to metal head 22 from testee, as hot-fluid 31, be passed to sensing element 23 then, have very most heat to scatter and disappear and form hot-fluids 32 to measuring end 21 to heat-conducting glue 24 or by heat-conducting glue 24 simultaneously, the heat that most is also arranged is is directly scattered and disappeared and forms hot-fluids 33 to measuring end 21 by metal head.The heat of some forms hot-fluid 34 via lead 25.These hot-fluids must be treated just can disappear after each several part all reaches thermal balance.Because metal head 22 volumes are big, thermal balance be reached and long time need be spent, need 60～90 seconds approximately.
As mentioned above, existing electronic clinical thermometer its to measure main cause consuming time be probe (probe) part, thermal capacitance is long-pending excessive, and the sensing element that really is used to measure will reach thermal balance and need treat just can reach after the whole probe segment balance.
2, between 1980～nineteen ninety, there are many patents to propose to shorten electronic clinical thermometer and measure time method.See also shown in Figure 4, as United States Patent (USP) 4,183, No. 248 disclosed clinical thermometer improves structure, it is provided with a clinical thermometer body 41, includes a metal head 42 and closely connected in first thermo-sensitive resistor 43 and second thermo-sensitive resistor 44 of its inside, and metal head 42 inside are a cavity 45, and first thermo-sensitive resistor 43 and thermo-sensitive resistor 44 are connected with lead 46, in order to combine with main circuit.In nearly body 41 measuring ends of metal head 42 last side joints, be provided with heating element heater 48 in addition, utilize lead 46 to combine with control circuit.
See also shown in Figure 5, when clinical thermometer body 41 was used to measure body temperature, hot-fluid 51 conducted to first thermo-sensitive resistor 43 by metal head 42, then to second thermo-sensitive resistor 44, this moment, heat scattered and disappeared to the measurement portion of clinical thermometer body 41 by metal head 42 simultaneously, formed hot- fluid 52 and 53.
This patent content proposes, just to start heating element heater 48 and heat when the temperature difference reaches to a certain degree because 44 of first thermo-sensitive resistor 43 and second thermo-sensitive resistors have the temperature difference when measuring beginning, so hot-fluid 52 can be because of the heating of heating element heater 48, and forms thermal resistance and diminishes.The heat of hot-fluid 53 is then by heating element heater 48 compensation.Finishing of measuring temp, need only wait for first thermo-sensitive resistor 43 near thermal balances reach, promptly the thermal balance of the metal head 42 of heating element heater 48 front ends and lead 46 is reached and is got final product.Because reduce to other regional hot-fluids, thermal balance is more easily reached, so it declares that the measurement time can foreshorten in 4～15 seconds.
As described above, this kind clinical thermometer is not filled glue in metal head 42, it is long-pending to reduce thermal capacitance, see through metal head 42 ends and sidepiece two sensing elements (as thermo-sensitive resistor 43,44) and measure temperature contrast, control heating element heater 48 provides the thermal source compensation, make metal head end and remainder form thermal resistance (thermallyisolate), to reduce the measurement time.
The shortcoming of this clinical thermometer is must use heating element heater and control heating element heater than expensive microprocessor, and cost is far beyond existing clinical thermometer height.And the hot-fluid 54 via lead 46 does not take in, and becomes the principal element that heat balance time is reached in influence.
And for example United States Patent (USP) 5,632, also disclosed an a kind of heating element heater and expensive microprocessor (microprocessor) of comprising in No. 555, this microprocessor mainly is that the algorithm (predictive algorithm) with prediction type estimates measurement, when popping one's head in after pedestal takes out, heating element heater can be heated to a specified temp with the metal head of probe.The algorithm of then utilizing prediction type measures the final temperature that estimates of temperature at the sensing element actual amount, and it declares that the measurement time is about 4～15 seconds.
The clinical thermometer of these modes includes a built-in heating element heater and/or reaches complicated circuit than expensive microprocessor.The element of these increases and circuit cause price comparatively expensive, and small product size must be bigger, and be not suitable for domestic.
3, in PCT WO00/22396 patent application case, disclose a kind of quick thermometer of extra heating that do not need and improved structure, see also shown in Figure 6, it is provided with a clinical thermometer body 61, include a measuring end 62, and be located at the metal head 63 of body 61 measuring ends 62 ends, metal head 63 most advanced and sophisticated inside contain a sensing element 64, this sensing element 64 is adhered to metal head 63 inwalls with a little glue, and connects lead 65 in order to combine with main circuit.
See also shown in Figure 7ly, it is that Fig. 6 clinical thermometer improves the heat balance diagram of structure.When clinical thermometer body 61 beginning measuring temperatures, heat conducts to metal head 63 from testee, as hot-fluid 71, conducts to sensing element 64 then, can produce hot-fluid 72 by metal head 63 simultaneously, and produce hot-fluid 73 via lead 65.This patent utilization reduce the long-pending and testee body temperature of the thermal capacitance of metal head 63 to long metal head 63 add the thermosetting thermal resistance naturally, hot-fluid 72 is reduced.73 of hot-fluids are by using superfine lead to dwindle, and this patent declares that the measurement time can foreshorten to 20～30 seconds.
The measurement time of this clinical thermometer, depend near the thermally equilibrated speed of reaching the sensing element 64, its hot-fluid has 72 and 73, desire to reach rapidly balance, the thermal capacitance that must effectively reduce sensing element 64 and metal head 63 is long-pending, may use expensive element, as having disclosed its sensing element 503FT-3P that is suitable in its patent, but not existing 503ET, the price of sensing element 503FT-3P is about four times of existing 503ET.
Even use thinner lead 65 in its thermometer structure in addition, also can't reduce hot-fluid 73 fully, when metal head 63 reached thermal balance because of the continuous heat supply in the external world, heat still can see through lead 65 and constantly scatter and disappear, and the measurement time is increased.Because this lead 65 is a metal also, heat conductivity is good, may become outwards to conduct the major part of scattering and disappearing heat energy in this structure near the sensing element 64.
With regard to these patents in the past, promoting the technical of measurement speed, all focus on reduce filling in metal head and the existing clinical thermometer metal head medium for reaching thermally equilibrated influence near the sensing element, do not consider that fully lead reaches the influence of speed for this thermal balance.
So still have many shortcomings in rapid measuring reaction aspect technical by the above existing clinical thermometer.
The inventor constantly studies the improved theory of innovation based on product, is to grasp the practical experience of being engaged in product design and development for many years, and the actual work of establishing via has many times caused generation of the present invention.
Summary of the invention
The purpose of this invention is to provide a kind of its induced temperature and can reach thermal balance and quick conductive rapidly, can manifest the clinical thermometer of correct temperature fast.On its structure the natural elasticity or the good sticker of heat conductivity of utilization lead itself in the metal head of clinical thermometer measuring end, with sensing element and the lead that is right after fully or most of the contact with the inwall of metal head be close to (more than at least 0.3 centimeter, preferred embodiment is 3 centimeters), so that conductor part no longer becomes the part that the sensing element ambient heat is scattered and disappeared, further become the source of energy compensating.Natural heating when metal head is being measured by extraneous testee and when reaching thermal balance, thermal balance is also reached immediately in the metal head inwall because lead is closely connected, also makes sensing element easier the reaching of thermal balance on every side, can show correct temperature fast, shorten the measurement time.
Below only by specific embodiment and do detailed explanation in conjunction with the accompanying drawings, further to understand and understanding every function of the present invention, characteristics.
Description of drawings
Fig. 1 is the schematic appearance of existing electronic clinical thermometer.
Fig. 2 is the metal head internal structure sketch map of existing electronic clinical thermometer.
Fig. 3 is the hot-fluid sketch map of structure when measuring of Fig. 2.
Fig. 4 is a United States Patent (USP) 4,183, No. 248 disclosed metal head internal structure sketch maps.
Fig. 5 is the hot-fluid sketch map of structure when measuring of Fig. 4.
Fig. 6 is the disclosed metal head internal structure of a PCT WO00/22396 patent application case sketch map.
Fig. 7 is the hot-fluid sketch map of structure when measuring of Fig. 6.
Fig. 8 is the metal head structural upright sketch map of measuring end of the present invention.
Fig. 9 is the metal head internal structure sketch map of measuring end of the present invention.
Figure 10 is the hot-fluid sketch map of structure when measuring of Fig. 9.
The figure number explanation:
1 measuring end, 11 grooves
2 metal heads, 3 stickers
4 sensing elements, 5 leads
6 Poly Foams, 7 ring sides
81,82,83,85 hot-fluids
84 thermal resistances
The specific embodiment
See also shown in Fig. 8 and 9, structure of the present invention is provided with a clinical thermometer body (not shown in graphic), can be provided with display, switch etc. on the body, because it repeats no more now for existing structure.The present invention is extended with measuring end 1 in clinical thermometer body the place ahead one, and this measuring end is that clinical thermometer body preferred embodiment is to be made by plastic cement, and in conjunction with a metal head 2, the two can combine measuring end 1 and metal head 2 by sticker 3 on the end of measuring end 1.The outside, end that measuring end 1 end combines with metal head 2 is provided with a groove 11 in addition except establishing a basic rank portion, this groove 11 can form the glue ring naturally having the effect of waterproof when combining with metal head 2 usefulness stickers 3, and makes sticker 3 more firm.
In metal head 2 inside one temperature sensitive member 4 is set, this sensing element 4 is a kind of and resistance temperature correlation, and as existing thermo-sensitive resistor 503ET, sensing element 2 is connected with lead 5, is connected with the main circuit with calculating and displays temperature.
In metal head 2, the good sticker 3 of the natural elasticity of lead 5 utilizations itself or heat conductivity is with sensing element 4 and the lead 5 that connected, contact with the inwall of metal head 2 with complete or most kenel and to be close to (preferred embodiment of the present invention is that lead 5 preceding half section one-tenth directly recline, and the second half section ring formation posts by shape).As being big around diameter wire (sensing element 4 is connected on the lead 5) than the metal head internal diameter, force lead 5 to fill in the metal head 2 then in rotary manner, because the lead 5 of existing sensing element 4 is copper covered steel wire (CP wire), its excellent elasticity, the natural elasticity of utilization own can be close to the metal head inwall.Perhaps with sensing element 4 and the lead 5 that connected, the inwall that is fixed in metal head 2 in direct cementation mode is close to shape to form contact.
Lead 5 parts that this inwall complete or most of and metal head 2 is close to are more than at least 0.3 centimeter, and preferred embodiment is 3 centimeters.
Contact lead 5 rear ends of being close at inwall with metal head 2, use hard or the low fixture 6 of soft heat conductivity with metal head 2 internal chamber wall driving fits, for example Poly Foam, material such as foaming cotton etc., utilize the frictional force or the expansible strength fixing cord 5 of fixture 6 and internal chamber wall and prevent that lead 5 from sliding, simultaneously can be in order to link the end of metal head 2 and measuring end 1, and the support that can serve as sticker 3, scatter in metal head 2 front ends to prevent sticker 3.This fixture 6 is not packed into, and to can be a diameter before the metal head 2 spherical greater than the three-dimensional semicircle of metal head 2 internal diameters, but its all side ring side 7 extrusions when in the metal head 2 of packing into and press to paste with the inwall of metal head 2 and touch, fixture 6 the place aheads then become one and do not press with metal head 2 inwalls and paste touch coniform, so can make the Zhou Bianhuan side 7 of fixture 6 less with the contact area of metal head 2, long-pending with effective minimizing thermal capacitance.
See also shown in Figure 10, when beginning measuring temperature with clinical thermometer of the present invention, heat conducts to metal head 2 from testee, as hot-fluid 81, conduct to sensing element 4 then, can produce hot-fluid 82 by metal head 2 simultaneously, because the heat energy in metal head 2 outsides is in liberal supply, this hot-fluid 82 is also little.Sensing element 4 is long-pending bigger with respect to the thermal capacitance of lead 5 in addition, and desiring to reach thermal balance needs more heat.And lead 5 is a metal material, and heat conductivity is good and be close to metal head 2 inboards, therefore can produce hot-fluid 83 by lead 5 with thermal energy conduction to sensing element 4.Certainly, lead 5 itself also can produce hot-fluid 85 to sticker 3 zones and measuring end 1, because lead 5 length of being close to are long, add closely connected in metal head 2, extraneous additional heat is fast, and lead 5 appropriate locations can form thermal resistance 84 by nature, and 82 pairs of sensing elements of hot-fluid 4 can be impacted on every side hardly.
With the thermal equilibrium analysis of sensing element 4 peripheral regions, before being different from, outwards scattered and disappeared the hot-fluid of lead 5 parts, instead with the heat sensing element 4 that leads.When metal head 2 reached thermal balance on every side, the thermal balance of lead 5 and sensing element 4 also can be reached rapidly, need not additionally heating and use under the expensive components, can effectively reduce the measurement time.Constantly test via the inventor, the measurement time of clinical thermometer of the present invention can foreshorten to 10～25 seconds.
More existing length (being generally 9mm) on metal head 2 length of the present invention in addition so it can increase the inner space of metal head 2, is beneficial to the winding of lead 5, and the sensible heat contact area of increase and skin.
In sum, the present invention is close to by sensing element set in the clinical thermometer metal head end and lead being designed to contact with the inwall of metal head, make conductor part no longer become the part that the sensing element ambient heat is scattered and disappeared, further become the source of heat compensation, make clinical thermometer can show correct temperature fast, reduce measuring required time.Therefore, the present invention has broken through the rapid measuring structure technology of existing clinical thermometer, and order does not have relevant technology contents openly formerly, meets the patent of invention condition.
More than for the present invention for embodiment only establish for ease of explanation, should not limit meaning of the present invention with this, promptly the various shift design of doing according to the scope of claims all should be included in the scope of patent protection of the present invention.
Claims (9)
1, a kind of fast reaction electronic clinical thermometer, its clinical thermometer body in the measuring end end by sticker in conjunction with a metal head, a temperature sensitive member and the lead that is connected with temperature sensitive member are set in the metal head, it is characterized in that:
Sensing element and the lead that is connected contacted with the inwall of metal head be close to, make conductor part no longer become the part that the sensing element ambient heat is scattered and disappeared, further become the source of heat compensation,, reduce measuring required time with the correct temperature of quick demonstration.
2, fast reaction electronic clinical thermometer as claimed in claim 1, wherein, sensing element and the lead that is connected are to contact with the inwall of metal head with complete or most of form to be close to.
3, fast reaction electronic clinical thermometer as claimed in claim 1, wherein, lead preceding half section be with directly recline, the second half section, to be ring formation be close to the inwall of metal head around the shape contact.
4, fast reaction electronic clinical thermometer as claimed in claim 1, wherein, in metal head, be provided with one with the fixture of metal head internal chamber wall driving fit, to have the effect of fixing cord, and can be used as the support of sticker, scatter in the metal head front end to prevent sticker.
5, fast reaction electronic clinical thermometer as claimed in claim 4, wherein, fixture employing hard, the material that heat conductivity is low.
6, fast reaction electronic clinical thermometer as claimed in claim 4, wherein, fixture adopts the material soft, that heat conductivity is low.
7, fast reaction electronic clinical thermometer as claimed in claim 4, therein, it is that a diameter is spherical greater than the three-dimensional semicircle of metal head internal diameter that fixture is packed into before the metal head, behind the metal head of packing into, make the contact area of the Zhou Bianhuan side of fixture and metal head less, long-pending with effective minimizing thermal capacitance.
8, fast reaction electronic clinical thermometer as claimed in claim 1, wherein, lead is to be big around diameter than the metal head internal diameter, forces in rotary manner and fills in the metal head.
9, fast reaction electronic clinical thermometer as claimed in claim 1, wherein, the outside, end that the measuring end end combines with metal head is provided with a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02150330 CN1212803C (en) | 2002-11-04 | 2002-11-04 | Quick response electrothermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02150330 CN1212803C (en) | 2002-11-04 | 2002-11-04 | Quick response electrothermometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1499181A CN1499181A (en) | 2004-05-26 |
| CN1212803C true CN1212803C (en) | 2005-08-03 |
Family
ID=34233936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02150330 Expired - Fee Related CN1212803C (en) | 2002-11-04 | 2002-11-04 | Quick response electrothermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212803C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313611A (en) * | 2010-07-01 | 2012-01-11 | 上海宝钢化工有限公司 | Quick response multipoint thermometer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424207A (en) * | 2013-09-04 | 2013-12-04 | 东阿阿胶阿华医疗器械有限公司 | Electronic clinical thermometer and manufacturing method thereof |
| CN105030208A (en) * | 2015-06-04 | 2015-11-11 | 舒建文 | Assembly method of thermometer |
| DE102015010189A1 (en) * | 2015-08-04 | 2017-02-09 | Infineon Technologies Ag | Body parameter monitoring device |
-
2002
- 2002-11-04 CN CN 02150330 patent/CN1212803C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313611A (en) * | 2010-07-01 | 2012-01-11 | 上海宝钢化工有限公司 | Quick response multipoint thermometer |
| CN102313611B (en) * | 2010-07-01 | 2014-03-12 | 上海宝钢化工有限公司 | Quick response multipoint thermometer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1499181A (en) | 2004-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW557352B (en) | Electronic clinical thermometer with rapid response | |
| CN101031233A (en) | Medical body core thermometer | |
| CN1212803C (en) | Quick response electrothermometer | |
| US7427157B2 (en) | Wind velocity measuring apparatus | |
| CN201589672U (en) | Metal tube wall temperature admeasuring apparatus | |
| US20140251005A1 (en) | Connected Tableware for Quantifying Dietary Intake | |
| US20050094707A1 (en) | Electrical thermometer | |
| CN110220940A (en) | A kind of irregular sample heating conduction test method | |
| Nagai et al. | Thermal conductivity measurement of liquid materials by a hot-disk method in short-duration microgravity environments | |
| WO2010143251A1 (en) | Blood flow measuring device and method | |
| CN107192734A (en) | The sensor and its test device of a kind of utilization Adsorbent By Using Transient Plane Source Technique test rock mass thermal conductivity | |
| CN100538402C (en) | The sensing device of thermal comfort and the anthropomorphic dummy who is used to simulate heat interchange who comprises a plurality of this devices | |
| Zhang et al. | An improved hot probe for measuring thermal conductivity of liquids | |
| CN202903710U (en) | Novel specific heat capacity determinator | |
| US7878946B1 (en) | Spinning bike power meter | |
| JP4411471B2 (en) | Quickly reacting electronic thermometer | |
| Xu et al. | Study of temperature profile and specific heat capacity in temperature modulated DSC with a low sample heat diffusivity | |
| Park et al. | Evaluation of thickness‐dependent temperature coefficient in a thin film thermocouple and its in vivo test using a porcine model | |
| CN106940226A (en) | Temperature sensor line based on temperature element | |
| CN100458384C (en) | Thermal conduction device of electronic thermometer and electronic thermometer using the thermal conduction device | |
| US20070217478A1 (en) | Measuring device | |
| CN215449080U (en) | Portable device for rapidly detecting Seebeck coefficient and resistivity of thermoelectric material | |
| CN220556426U (en) | Heat dissipation and heat preservation testing device for automobile heat insulation film | |
| TW200931011A (en) | Method and apparatus for measuring the degree of cool feelinbg from a textile | |
| TWI275783B (en) | Device for measuring temperature by a thermal couple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050803 Termination date: 20201104 |