CN204033319U - Medical hermetically sealed inductive electronic thermometer - Google Patents
Medical hermetically sealed inductive electronic thermometer Download PDFInfo
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- CN204033319U CN204033319U CN201420373013.9U CN201420373013U CN204033319U CN 204033319 U CN204033319 U CN 204033319U CN 201420373013 U CN201420373013 U CN 201420373013U CN 204033319 U CN204033319 U CN 204033319U
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- circuit board
- printed circuit
- medical
- hermetically sealed
- electronic thermometer
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Abstract
The utility model discloses a kind of medical hermetically sealed inductive electronic thermometer, comprise a housing, and be arranged on the display screen that printed circuit board in described housing and one and described printed circuit board be electrically connected, one measuring unit be electrically connected with described printed circuit board and one and the operation control electronic chip that is electrically connected of described printed circuit board, measuring unit comprises a critesistor and compensating resistance; Critesistor is arranged on the front end of described housing; Compensating resistance and critesistor are electrically connected; Measuring tempeature value for detecting the resistance value of described measuring unit, and is transferred to described display screen by described operation control electronic chip, and the laminating of described operation control electronic chip on a printed circuit board.By utilization of the present utility model, improve certainty of measurement to be forbidden to eliminate current electronic clinical thermometer thermometric, this utility model not only achieves the resolving power of 0.01 DEG C (0.02 ℉), and discreteness critesistor realization error within the scope of gamut is greatly reduced.
Description
Technical field
This utility model relates to a kind of medical hermetically sealed inductive electronic thermometer.
Background technology
With critesistor be temperature-sensing element electronic clinical thermometer come out for many years, various designs and varieties are countless versions nearly, as nipple type, Quick-action type, sound report formula, solar energy type, soft hair style, infrared ear temperature formula, infrared body tabular form, RFID wireless telemetering and simulation mercury clinical thermometer whipping or switch electronic clinical thermometer etc., but, can substitute without a kind of the mercury clinical thermometer still generally used within the hospital at present so far.
As shown in Figure 1, the structure of conventional electrical clinical thermometer contains probe 1, critesistor 2, printed circuit board (PCB) 3, display device 4, cabinet 5, press button 6, battery 7.Be its operation principle be wait in take temperature timing substantially, 1 part of popping one's head in will carry out disinfection, then starting switch 6, open battery 7 to start working, then by probe 1 and human contact, human body is by after Temperature changing, body temperature is passed to critesistor 2, by the critesistor resistance of temperature influence, critesistor generation change in resistance, resistance is passed to printed circuit board (PCB) 3 simultaneously, printed circuit board (PCB) 3 passes to operation control module (mcu) after receiving change in resistance, operation control module is by the change in resistance of plug-in according to critesistor 2, carry out the process of big data quantity, after stabilizing the temperature, the body temperature of measurement is presented at display device 4, can only be shown as 37.x DEG C (such as 37.2 DEG C).
But the electronic clinical thermometer of Vehicles Collected from Market mainly exists some problem following: 1, precision is low, can not reach 0.1 DEG C of mercury clinical thermometer, also cannot can read scale as mercury clinical thermometer simultaneously, estimate and read 0.01 DEG C.If with current conventional electrical clinical thermometer thermometric, really exist and do not have the temperature measurement accuracy of mercury clinical thermometer high.Because 0.1 DEG C of scale numerical value that mercury clinical thermometer adopts, such as when product export, standard is relatively strict, and when the temperature chamber temperature of measurement mercury clinical thermometer is set in 37.00 DEG C, certain mercury clinical thermometer is 37.11 DEG C as detected measuring tempeature, is namely judged to be defective; And conventional electrical clinical thermometer, measuring tempeature not only cannot be accurate to 37.11 DEG C, and is presented at 37.1 DEG C, cannot show accurately, therefore conceals the error of 0.05 DEG C.2, volume is large, and due to the general Grade III Class A hospital Number of Outpatients every day of hundreds of people at least, thousands of people goes to a doctor at most, and volume greatly just adds nursing staff and is difficult to management and operation.3, can not soaking disinfection, mercury clinical thermometer is overall package comparatively speaking, can soaking disinfection, and the electronic clinical thermometer of Vehicles Collected from Market can not accomplish overall package substantially, thus cannot soaking disinfection.4, price is high, add the expenditure cost of medical treatment, and the cost of mercury clinical thermometer is relatively low.Below the mercury clinical thermometer that current electronic clinical thermometer can not substitute current use what time is limited.Although mercury clinical thermometer is frangible dangerous, reading is inconvenient, and Measuring Time is long, causes the disadvantages such as hydrargyrum environmental pollution simultaneously, is still the first-selection of Medical Institution, occupies dominant position.
Utility model content
The technical problems to be solved in the utility model is low in order to overcome prior art electronic clinical thermometer certainty of measurement, can not replace mercurial thermometer, and the defect such as volume is large, a kind of medical hermetically sealed inductive electronic thermometer is provided.
This utility model solves above-mentioned technical problem by following technical proposals:
A kind of medical hermetically sealed inductive electronic thermometer, comprise a housing, and be arranged on the display screen that printed circuit board in described housing and one and described printed circuit board be electrically connected, its feature is, described medical hermetically sealed inductive electronic thermometer also comprises the operation control electronic chip that a measuring unit be electrically connected with described printed circuit board and one and described printed circuit board are electrically connected, wherein
Described measuring unit comprises a critesistor and compensating resistance;
Described critesistor is arranged on the front end of described housing;
Described compensating resistance and described critesistor are electrically connected;
Measuring tempeature value for detecting the resistance value of described measuring unit, and is transferred to described display screen by described operation control electronic chip, and described operation control electronic chip is fitted on described printed circuit board.This programme is by the electric connection of compensating resistance and critesistor, obtain the measuring unit resistance value relevant to compensating resistance resistance value, and the form of indirect correlation, the discreteness of the resistance value of measuring unit is made to be significantly less than the independent discreteness of critesistor, also just improve the precision of numerical value, thus provide possibility for the precision realizing mercurial thermometer rank.
Preferably, described compensating resistance comprises a parallel resistance and series resistance, and described parallel resistance is in parallel with described critesistor thus form a parallel circuit, and described parallel circuit is connected with described series resistance.In this programme, realize the discreteness of minimizing critesistor to the impact of measuring unit by parallel resistance, and made up the resistance value of measuring unit by series impedance, instead of directly amplify, ensure that the discreteness of critesistor is not exaggerated.Parallel resistance in this programme and series resistance refer to the resistance with stable electrical resistance, not only independently single resistance, also can be combined by the connection of other resistance multiple respectively.
Preferably, described medical hermetically sealed inductive electronic thermometer also comprises a fixed mount be connected together with described printed circuit board, and wherein, described display screen is fitted on described printed circuit board, and described fixed mount covers at outside described display screen.The stable connection of display screen can be increased by described fixed mount, greatly add the life-span of product.
Preferably, described printed circuit board is provided with some bayonet sockets, the bottom of described fixed mount is provided with some card bases for blocking described bayonet socket, the top of described fixed mount is provided with a flange part, described flange part extends along the top edge of described display screen, and described flange part is attached at the top of described display screen.Because described card base snaps in bayonet socket, almost do not increase the thickness of connection, ensure that the demand of the miniaturization of product.In addition, in order to ensure bonding strength, bottom described card base, there is screw-socket, adopting screw described card base and printed circuit board to be fixed.
Preferably, the tail end of described printed circuit board is provided with LED display lamp.Can control LED display lamp by operation control electronic chip, and various alarm control can be realized according to each time point, the parameter etc. when measuring.Such as, the flicker of LED display lamp can be carried out after measuring equilibrium temperature value.
Preferably, described housing comprises a front end, a main part and a tail end, and described tail end covers at the outer space of described LED display lamp, and described tail end and described main part are tightly connected.Described tail end can adopt and make frosted finish effect, carries out scattering thus, the identification of convenient operation personnel to the light of LED display lamp.
Preferably, described front end secondary injection molding is outside described critesistor, and described front end and described main part are tightly connected.After secondary injection molding, critesistor is close on housing, not only effectively decreases size, and the speed obtaining temperature is increased, and is beneficial to Quick Measurement.
Preferably, described printed circuit board is also provided with one for controlling the tongue tube of the switch of described medical hermetically sealed inductive electronic thermometer, described tongue tube and described printed circuit board are electrically connected.
Preferably, described printed circuit board is also provided with one for controlling the magnetic reed switch of the switch of described medical hermetically sealed inductive electronic thermometer, described magnetic reed switch and described printed circuit board are electrically connected.
Preferably, described printed circuit board is also provided with the minicell for providing electric power, described minicell and described printed circuit board are electrically connected.
In this utility model, above-mentioned optimum condition can combination in any on the basis meeting this area general knowledge, obtains each preferred embodiment of the present utility model.
Positive progressive effect of the present utility model is: improve certainty of measurement and forbidden to eliminate current electronic clinical thermometer thermometric, this utility model not only achieves the resolving power of 0.01 DEG C, and discreteness critesistor realized error within the scope of 35 DEG C ~ 42 DEG C gamuts be less than ± 0.02 DEG C and complete machine dispatch from the factory and reach gamut ± 0.05 DEG C error, greatly surmounted mercury clinical thermometer ± factory calibration of 0.01 DEG C ~ ± 0.15 DEG C.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the electronic clinical thermometer of prior art.
Fig. 2 is the shell structure schematic diagram of this utility model preferred embodiment.
Fig. 3 is the medical hermetically sealed inductive electronic thermometer internal structure schematic diagram of this utility model preferred embodiment.
Fig. 4 is fixed mount and the printed circuit board connected mode schematic diagram of this utility model preferred embodiment.
Fig. 5 is the printed circuit board structural representation of this utility model preferred embodiment.
Detailed description of the invention
Enumerate preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly this utility model to be described.
Embodiment
Accompanying drawing illustrates:
Housing 1;
Front end 11; Main part 12; Tail end 13; Forms 14;
LED display lamp 2;
Critesistor 3;
Compensating resistance 4;
Fixed mount 51;
Card base 511;
Printed circuit board 52;
Bayonet socket 521; Holddown groove 522;
Display screen 6;
Operation control electronic chip 7;
Minicell 8;
Tongue tube 9;
As shown in Figure 3, the medical hermetically sealed inductive electronic thermometer of the present embodiment comprises a housing 1, and arranges printed circuit board 52 within the case 1 and a display screen 6 be electrically connected with printed circuit board 52, and medical hermetically sealed inductive electronic thermometer also comprises one and the measuring unit that is electrically connected of printed circuit board 52 and one and the operation control electronic chip 7 that is electrically connected of printed circuit board 52.
Wherein, described measuring unit comprises a critesistor 3 and compensating resistance 4; Critesistor 3 is arranged on the front end of housing 1; Compensating resistance 4 and critesistor 3 are electrically connected; This programme passes through the electric connection of compensating resistance 4 and critesistor 3, obtain the measuring unit resistance value relevant to the resistance value of compensating resistance 4, and the form of indirect correlation, the discreteness of the resistance value of measuring unit is made to be significantly less than the independent discreteness of critesistor 3, also just improve the precision of numerical value, thus provide possibility for the precision realizing mercurial thermometer rank.
Particularly, in the present embodiment, compensating resistance 4 comprises a parallel resistance and series resistance, described parallel resistance is in parallel with critesistor 3 thus form a parallel circuit, described parallel circuit is connected with described series resistance, the series resistance that it is 584 Ω that the present embodiment adopts resistance value to be parallel resistance and the resistance value of 2m Ω is connected with critesistor, revise, concrete effect as shown in Table 1.
Table one, resistance temperature errors table
Can be known by table one and see, before correction, the centrifugal pump of critesistor and the error of initial resistance value are very large, such as 38 DEG C time, when centrifugal pump is+3% thermosensitive resistance, error can reach 1030 Ω; And after the correction of result parallel resistance and series resistance, when centrifugal pump is+3% thermosensitive resistance, global error is only 6 Ω.Like this, even if when the present embodiment detects, critesistor is discrete very large, and the resistance change of overall measuring unit is still very little.Such as 38 DEG C, when centrifugal pump is+3% thermosensitive resistance, the error of 6 Ω is very little relative to the original correction values impact of 28985 Ω, only produces the error of 0.005 DEG C.This embodiment reduces error like this.Simultaneously, due to error only to after the arithmetic point of temperature detection data the 3rd have an impact, when such as temperature is 38 DEG C, the scope of data that clinical thermometer records is 37.996 DEG C-38.005 DEG C, by rounding up to antepenultimate, any one value in range of discrete values, after rounding up, the actual temperature significant digits obtained are all 38.00 DEG C.Thus the present embodiment achieves the fine-resolution of after arithmetic point the 2nd.
In this programme, realize the discreteness of minimizing critesistor 3 to the impact of measuring unit by parallel resistance, and made up the resistance value of measuring unit by series impedance, instead of directly amplify, ensure that the discreteness of critesistor 3 is not exaggerated.Parallel resistance in this programme and series resistance refer to the resistance with stable electrical resistance, not only independently single resistance, also can be combined by the connection of other resistance multiple respectively.
As shown in Figure 4, the medical hermetically sealed inductive electronic thermometer of the present embodiment also comprises a fixed mount 51 be connected together with described printed circuit board 52, wherein, display screen 6 is fitted on printed circuit board 52, fixed mount 51 covers at outside display screen 6, the top of fixed mount 51 is provided with a flange part, and described flange part extends along the top edge of display screen 6, and described flange part is attached at the top of described display screen.
As shown in Figure 5, printed circuit board 52 is provided with some bayonet sockets 521, the bottom of fixed mount is provided with some card bases 511 for blocking bayonet socket 521, because card base 511 snaps in bayonet socket 521, almost do not increase the thickness of connection, ensure that the demand of the miniaturization of product.Printed circuit board 52 is provided with groove 522, tongue tube 9 is embedded while groove 522 is fixed, also effectively reduce the thickness of clinical thermometer.
As shown in Figure 2, housing 1 comprises front end 11, main part 12 and a tail end 13, and the tail end of printed circuit board 52 is provided with LED display lamp 2, and the outer space of LED display lamp 2 is located at by tail end cover 13, such as, and tail end and main part are tightly connected, and are connected together by supersonic welding.Tail end 13 can adopt and make frosted finish effect, carries out scattering thus, the identification of convenient operation personnel to the light of LED display lamp 2.
Front end 11 secondary injection molding is outside critesistor 3, and front end 11 and main part 12 are tightly connected.After secondary injection molding, critesistor 3 is close on housing 1, not only effectively decreases size, and the speed obtaining temperature is increased, and is beneficial to Quick Measurement.In addition, main part 12 is provided with transparent forms 14, is convenient to observe the number of degrees.
The printed circuit board 52 of the present embodiment is also provided with one for the tongue tube 9 of gauge tap, tongue tube 9 and printed circuit board 52 are electrically connected, and during use, are controlled the switch of tongue tube 9 by the mode of magnetic induction, decrease frame for movement, achieve the integrated sealing of clinical thermometer.
Printed circuit board is also provided with the minicell 8 (i.e. button cell) for providing electric power, minicell 8 and printed circuit board 52 are electrically connected.
Operation control electronic chip 7 is for detecting the resistance value of described measuring unit, and measuring tempeature value is transferred to display screen 6 after calculating and transforming by result.Can also control LED display lamp 2 by operation control electronic chip 7, and various alarm control can be realized according to each time point, the parameter etc. when measuring.Such as, the flicker of LED display lamp 2 can be carried out after measuring equilibrium temperature value.
Although the foregoing describe detailed description of the invention of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (10)
1. a medical hermetically sealed inductive electronic thermometer, comprise a housing, and be arranged on the display screen that printed circuit board in described housing and one and described printed circuit board be electrically connected, it is characterized in that, described medical hermetically sealed inductive electronic thermometer also comprises the operation control electronic chip that a measuring unit be electrically connected with described printed circuit board and one and described printed circuit board are electrically connected, wherein
Described measuring unit comprises a critesistor and compensating resistance;
Described critesistor is arranged on the front end of described housing;
Described compensating resistance and described critesistor are electrically connected;
Measuring tempeature value for detecting the resistance value of described measuring unit, and is transferred to described display screen by described operation control electronic chip, and described operation control electronic chip is fitted on described printed circuit board.
2. medical hermetically sealed inductive electronic thermometer as claimed in claim 1, it is characterized in that, described compensating resistance comprises a parallel resistance and series resistance, and described parallel resistance is in parallel with described critesistor thus form a parallel circuit, and described parallel circuit is connected with described series resistance.
3. medical hermetically sealed inductive electronic thermometer as claimed in claim 1, it is characterized in that, described medical hermetically sealed inductive electronic thermometer also comprises a fixed mount be connected together with described printed circuit board, wherein, described display screen is fitted on described printed circuit board, and described fixed mount covers at outside described display screen.
4. medical hermetically sealed inductive electronic thermometer as claimed in claim 3, it is characterized in that, described printed circuit board is provided with some bayonet sockets, the bottom of described fixed mount is provided with some card bases for blocking described bayonet socket, the top of described fixed mount is provided with a flange part, described flange part extends along the top edge of described display screen, and described flange part is attached at the top of described display screen.
5. medical hermetically sealed inductive electronic thermometer as claimed in claim 1, is characterized in that, the tail end of described printed circuit board is provided with LED display lamp.
6. medical hermetically sealed inductive electronic thermometer as claimed in claim 5, it is characterized in that, described housing comprises a front end, a main part and a tail end, and described tail end covers at the outer space of described LED display lamp, and described tail end and described main part are tightly connected.
7. medical hermetically sealed inductive electronic thermometer as claimed in claim 6, is characterized in that, described front end secondary injection molding is outside described critesistor, and described front end and described main part are tightly connected.
8. the medical hermetically sealed inductive electronic thermometer as described in claim 1-7 any one, it is characterized in that, described printed circuit board is also provided with one for controlling the tongue tube of the switch of described medical hermetically sealed inductive electronic thermometer, described tongue tube and described printed circuit board are electrically connected.
9. the medical hermetically sealed inductive electronic thermometer as described in claim 1-7 any one, it is characterized in that, described printed circuit board is also provided with one for controlling the magnetic reed switch of the switch of described medical hermetically sealed inductive electronic thermometer, described magnetic reed switch and described printed circuit board are electrically connected.
10. the medical hermetically sealed inductive electronic thermometer as described in claim 1-7 any one, is characterized in that, described printed circuit board is also provided with the minicell for providing electric power, and described minicell and described printed circuit board are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373013.9U CN204033319U (en) | 2014-07-07 | 2014-07-07 | Medical hermetically sealed inductive electronic thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373013.9U CN204033319U (en) | 2014-07-07 | 2014-07-07 | Medical hermetically sealed inductive electronic thermometer |
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| Publication Number | Publication Date |
|---|---|
| CN204033319U true CN204033319U (en) | 2014-12-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373013.9U Expired - Fee Related CN204033319U (en) | 2014-07-07 | 2014-07-07 | Medical hermetically sealed inductive electronic thermometer |
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| CN (1) | CN204033319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055491A (en) * | 2014-07-07 | 2014-09-24 | 上海伽格医疗科技发展有限公司 | Medical fully-sealed induction-type electronic thermometer |
-
2014
- 2014-07-07 CN CN201420373013.9U patent/CN204033319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055491A (en) * | 2014-07-07 | 2014-09-24 | 上海伽格医疗科技发展有限公司 | Medical fully-sealed induction-type electronic thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20160707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |