CN213022037U - Temperature measurement alarm large-screen digital thermometer for industrial production site - Google Patents
Temperature measurement alarm large-screen digital thermometer for industrial production site Download PDFInfo
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- CN213022037U CN213022037U CN202021964362.XU CN202021964362U CN213022037U CN 213022037 U CN213022037 U CN 213022037U CN 202021964362 U CN202021964362 U CN 202021964362U CN 213022037 U CN213022037 U CN 213022037U
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Abstract
The utility model discloses a temperature measurement warning large-size screen digital temperature detector for industrial production scene, the utility model relates to a temperature measurement warning large-size screen digital temperature detector technical field, including shell, PCB circuit board, power supply part, PCB circuit board and power supply part are all installed in the shell, and the PCB circuit board is connected with power supply part winding displacement, the front fixed surface installation digital display of shell. The utility model has the advantages of reasonable design, high durability and convenient use, can solve the accurate field test measured data that obtains of producing, can in time follow fritting furnace, the chlorine room, in time acquire production temperature data in complicated production environment such as gas station, a low cost has been designed, easy installation, easy debugging, easy calibration, high durability and convenient nimble can the alarm data thermoscope, the judgement and the measured temperature that the digital display thermometer can be accurate, with digital display, and non-pointer or mercury show, the appearance of digital thermometer can let you just let people audio-visual understanding oneself think that the temperature of knowing is how few on the earth.
Description
Technical Field
The utility model relates to a temperature measurement reports to police big screen digital temperature detector technical field specifically is a temperature measurement reports to police big screen digital temperature detector for industrial production scene.
Background
Although the traditional pointer type thermometer can indicate the temperature, the temperature precision is low, the industrial field use is not convenient enough, the display is not visual enough, the long-time measurement cost of the laser thermometric gun is high, the precision is low, and the laser thermometric gun is easy to be interfered by the environment. In addition, the common thermometers and thermometric guns are inconvenient to set the temperature alarm function.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a temperature measurement warning large-size screen digital temperature detector for industrial production scene to it is not enough to solve prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the intelligent alarm device comprises a shell, a PCB (printed circuit board) and a power supply part, wherein the PCB and the power supply part are arranged in the shell, the PCB is connected with a flat cable of the power supply part, a digital display is fixedly arranged on the front surface of the shell, the PCB is directly connected with the digital display, the power supply part is connected with an external interface temperature probe, the PCB consists of a sensor signal processing circuit and a digital thermometer core circuit, the sensor signal processing circuit is electrically connected with the digital thermometer core circuit, and an alarm part adopts an operational amplifier to compare signals and output an alarm signal.
The temperature measurement alarm large-screen digital thermometer for the industrial production field is characterized in that the temperature probe is a sensor temperature probe.
The large-screen digital temperature detector for temperature measurement and alarm in the industrial production field is characterized in that the corners of the shell are rounded.
The temperature measurement alarm large-screen digital thermometer for the industrial production site is characterized in that a protective layer is arranged on the front surface of the digital display.
The utility model has the advantages that: the utility model has the advantages of reasonable design, high durability and convenient use, can solve the accurate production field test measured data that obtains, can in time follow fritting furnace, the chlorine room, in time acquire production temperature data in complicated production environment such as gas station, a low cost has been designed, easy installation, easy debugging, easy calibration, high durability and convenient nimble can the alarm data thermoscope, the judgement and the measured temperature that the digital display thermometer can be accurate, with digital display, and not pointer or mercury show, the appearance of digital thermometer can let people audio-visual understanding oneself know the temperature that oneself thinks to know be how few on the earth.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of the overall structure of the present invention; fig. 2 is a schematic block diagram of the circuit of fig. 1.
Reference numerals: 1-shell, 2-PCB circuit board, 3-power supply part and 4-power supply part.
Detailed Description
As shown in fig. 1 to 2, the present embodiment specifically discloses a large-screen digital thermometer for temperature measurement alarm for industrial production site, which includes a housing 1, a PCB circuit board 2, a power supply part 3, the PCB circuit board 2 and the power supply part are both installed in the housing 1, the PCB circuit board 2 is connected with the power supply part 3 through a flat cable, a digital display 4 is fixedly installed on the front surface of the housing 1, the PCB circuit board 2 is directly connected with the digital display 4, the power supply part 3 is connected with an external temperature probe of an interface, the PCB circuit board 2 is composed of a sensor signal processing circuit and a digital thermometer core circuit, the sensor signal processing circuit and the digital thermometer core circuit are electrically connected, the alarm part adopts an operational amplifier to compare and output an alarm signal, and the relay outputs and can be connected with an audible and visual alarm. The utility model has the advantages of reasonable design, high durability and convenient use, can solve the accurate field test measured data that obtains of producing, can in time follow fritting furnace, the chlorine room, in time acquire production temperature data in complicated production environment such as gas station, a low cost has been designed, easy installation, easy debugging, easy calibration, high durability and convenient nimble can the alarm data thermoscope, the judgement and the measured temperature that the digital display thermometer can be accurate, with digital display, and non-pointer or mercury show, the appearance of digital thermometer can let you just let people audio-visual understanding oneself think that the temperature of knowing is how few on the earth. The digital display thermometer adopts a temperature sensitive element, namely a temperature sensor (such as a platinum resistor, a thermal resistor, a semiconductor, a thermistor and the like) to convert the temperature change into the change of an electric signal, such as the change of voltage and current, wherein the temperature change and the change of the electric signal have a certain relation, such as a linear relation and the like; the product comprises three parts: the LED nixie tube display comprises an LED nixie tube display, a special processing chip and a temperature-measuring temperature-sensitive probe, wherein the core part of the LED nixie tube display is the special processing chip, the LED nixie tube is an 8-shaped device formed by packaging a plurality of light-emitting diodes together, a lead wire is connected internally, only all strokes and common electrodes of the light-emitting diodes need to be LED out, the nixie tube is actually formed by forming an 8 shape by seven light-emitting diodes, the number of the nixie tube display is 8 by adding decimal points, and the sections are respectively represented by letters a, b, c, d, e. The special processing chip is completed by ICL7107, ICL7107 is a high-performance, low-power consumption three-dimensional and half A/D converter circuit, which comprises seven sections of decoders, display drivers, reference sources and clock coefficients, ICL7107 can directly drive light emitting diodes, ICL7107 well combines high precision, universality and true low cost, and has an automatic zero-comparing function of less than 10 muV, zero source is less than 1 muV/DEG C, input current is less than 10pA, and polarity conversion error is less than one word. True differential inputs and differential reference sources are useful in a variety of systems, with significant advantages for measuring load cells, pressure gauges and other bridge sensors, in addition, as long as about 10 passive elements and a display screen consisting of four LED nixie tubes can form a high-performance instrument panel with the ICL7107 to realize low cost and single power supply operation, the ICL7107, a peripheral circuit and a potentiometer for adjusting voltage belong to the core part of the part, a temperature probe is used for measuring field real-time temperature data, LM35 or thermal resistor is used to measure the temp at ordinary temp (0-100 deg.C), and when the measured temp is over 1000 deg.C, can use platinum resistor to match with the transmitter to complete temperature measurement, and can use K series probe to match with the transmitter to complete temperature measurement when negative temperature exists, connecting related components according to a circuit diagram, wherein the function of each pin of the chip is noticed and wiring is carried out; after the above steps are completed, switching on a power supply, observing whether the nixie tube is bright, and if not, detecting a circuit power supply to see whether the circuit is in poor contact or short circuit; after the completion, whether the nixie tube displays numerical values or not is observed, then the temperature value of LM35 is changed, and whether the nixie tube changes along with the temperature change or not is observed; if the numerical value of the nixie tube is too large different from the temperature value, whether the values of all elements in the signal acquisition circuit are right or not is checked, in order to verify the correctness of the designed circuit and the experimental data of the designed circuit, a real object is verified, a mercury thermometer and the designed circuit are used for correspondingly measuring objects at the same temperature and drawing a table for comparison, and the table is shown as the following table 1:
| measuring environment/measuring tool | Mercury thermometer | Digital display thermometer |
| At room temperature | 25.0 | 25.1 |
| Low temperature (Ice-water mixture) | 0.0 | 0.0 |
| Warm water | 55.0 | 55.1 |
| High temperature (boiling water) | 99.9 | 100.0 |
TABLE 1 comparison of Mercury thermometer with design circuit data
TABLE 2 alarm set point test
From the data in the table above, it can be seen that the error of the system is <0.1 ℃ + -1 word, and the resolution is 0.1 ℃. The design requirement is met, the accurate temperature display with low cost is realized, and the alarm output of the upper and lower temperature limits can be realized.
Specifically, the temperature probe described in this embodiment is a sensor temperature probe. When the device is used, measurement is the most common sensor in various sensors on the market through the temperature sensor, and the modern temperature sensor has a very small appearance, so that the device is widely applied to various fields of production practice and also provides countless convenience and functions for life of people.
Specifically, the corners of the housing 1 described in this embodiment are rounded. When the device is used, the corners of the shell 1 are rounded, so that the corners can be prevented from scratching workers.
Further, a protective layer is disposed on the front surface of the digital display 4 according to this embodiment. When the device is used, the digital display 4 can be protected by the protective layer, and the digital display 4 is prevented from being damaged.
The embodiments of the present invention have been described with reference to the accompanying drawings, but these descriptions should not be construed as limiting the scope of the present invention, and the technical contents not described in detail in the present invention are known in the art.
Claims (4)
1. The utility model provides a temperature measurement warning large-size screen digital temperature detector for industrial production scene which characterized in that: the temperature-measuring and temperature-measuring device comprises a shell (1), a PCB (printed circuit board) circuit board (2), a power supply part (3), the PCB circuit board (2) and the power supply part are installed in the shell (1), the PCB circuit board (2) is connected with the power supply part (3) through a flat cable, a digital display (4) is fixedly installed on the front surface of the shell (1), the PCB circuit board (2) is connected with the flat cable of the digital display (4), the power supply part (3) is connected with an external interface temperature probe, the PCB circuit board (2) is composed of a sensor signal processing and digital temperature measuring instrument core circuit, the sensor signal processing and digital temperature measuring instrument core circuit are electrically connected, and an alarm part adopts operational amplifier as a signal.
2. The temperature measurement alarm large-screen digital thermometer for the industrial production field according to claim 1, characterized in that: the temperature probe is a sensor temperature probe.
3. The temperature measurement alarm large-screen digital thermometer for the industrial production field according to claim 1, characterized in that: the corners of the shell (1) are rounded.
4. The temperature measurement alarm large-screen digital thermometer for the industrial production field according to claim 1, characterized in that: and a protective layer is arranged on the front surface of the digital display (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021964362.XU CN213022037U (en) | 2020-09-10 | 2020-09-10 | Temperature measurement alarm large-screen digital thermometer for industrial production site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021964362.XU CN213022037U (en) | 2020-09-10 | 2020-09-10 | Temperature measurement alarm large-screen digital thermometer for industrial production site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213022037U true CN213022037U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021964362.XU Active CN213022037U (en) | 2020-09-10 | 2020-09-10 | Temperature measurement alarm large-screen digital thermometer for industrial production site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213022037U (en) |
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2020
- 2020-09-10 CN CN202021964362.XU patent/CN213022037U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 250100 1299 Zidong Avenue, Jinan new material industrial park, Tianqiao District, Jinan City, Shandong Province Patentee after: Shandong Futong Optical Guidance Technology Co.,Ltd. Address before: 250100 No.399, Zidong Avenue, Jinan new material industrial park, Tianqiao District, Jinan City, Shandong Province Patentee before: Shandong Futong Optical Guidance Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |