CN218524263U - Electric iron thermometer calibrating device - Google Patents
Electric iron thermometer calibrating device Download PDFInfo
- Publication number
- CN218524263U CN218524263U CN202221983751.6U CN202221983751U CN218524263U CN 218524263 U CN218524263 U CN 218524263U CN 202221983751 U CN202221983751 U CN 202221983751U CN 218524263 U CN218524263 U CN 218524263U
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- China
- Prior art keywords
- temperature
- temperature sensor
- probe
- connecting part
- soldering iron
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 47
- 239000000523 sample Substances 0.000 claims abstract description 64
- 238000005476 soldering Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000004321 preservation Methods 0.000 claims description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000001052 transient effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a calibration device for an electric soldering iron thermometer, which comprises a temperature measuring probe, a movable ring, a connecting part, a holding part, a lead and a calibration terminal; the temperature measuring probe comprises two temperature sensors which are used for measuring the electric shock temperature of the electric soldering iron thermometer and the temperature of the heating block respectively; the movable ring is sleeved on the inner side of the connecting part and can slide up and down in the vertical direction; the connecting part is fixedly connected above the holding part; the connecting part is of a hollow tubular structure, and a lead is connected in the connecting part; the temperature measuring probe and the calibration terminal are connected through a circuit by the conducting wire. The novel temperature measuring device utilizes the movable ring to correspond to a support of a temperature sensing line on the electric soldering iron thermometer, so that the temperature measuring probe is tightly attached to a measuring point of the thermometer, two temperature sensors are arranged at the same time, the temperature of a heat source is quickly adjusted by utilizing a PID algorithm, the temperature transient generated when the temperature measuring probe is contacted with the measuring point with lower temperature in the calibration process is overcome, and the accurate calibration of the thermometer is realized.
Description
Technical Field
The utility model relates to a specific thermometer field, in particular to electric iron thermometer calibrating device.
Background
The heat conduction factors are often critical in the design, processing and manufacturing processes of the integrated circuit, the long-term stability and reliability of the product are directly influenced, and the accurate measurement and control of the temperature parameters are the guarantee for ensuring the high performance of the integrated circuit product in the integrated circuit SMT paster technology and the welding process. In order to ensure the safety, reliability and stable performance of the welded components, the welding temperature needs to be accurately controlled according to different component materials and production processes, welding quality and long-term reliability can be affected when the temperature is too high or too low, cold welding can be caused if the temperature is too low, and thermal shock can be caused to the components if the temperature is too high. The soldering iron thermometer is mainly used for measuring the instantaneous temperature of the soldering iron nozzle, judging whether the temperature of the soldering iron nozzle meets the process requirements or not according to the measured temperature, and is widely applied to the soldering process of electronic components or integrated circuits, so that the temperature measurement accuracy and the magnitude traceability of the soldering iron thermometer for monitoring the temperature of the soldering iron nozzle are very important.
However, the calibration of the soldering iron thermometer has great difficulty, because the temperature sensing head of the temperature sensor of most soldering iron thermometers is very tiny, the diameter is less than 1mm, and the lead wire is not more than 10mm, the temperature sensor is difficult to calibrate accurately, the calibration of the existing soldering iron thermometers is generally carried out by defining a temperature source with stable temperature to contact the measuring point of the soldering iron thermometer, the temperature probe needs to continuously contact the measuring point for a period of time to carry out heat conduction until the temperature of the measuring point and the temperature of the probe realize heat balance, and the position is not easy to be controlled during the contact in the continuous contact process, so that the measuring point and the temperature probe are disconnected, and the calibration accuracy is reduced; meanwhile, the temperature probe is heated to be higher, a larger temperature transient difference can be generated when the temperature probe is contacted with a measuring point of the electric soldering iron thermometer with lower temperature, and if the temperature probe is not further heated, the temperature sequential difference is compensated, so that the error generated during the calibration of the electric soldering iron thermometer is larger.
In order to solve the problems that the contact is unstable when the electric soldering iron thermometer is calibrated, a temperature source is uncertain during calibration, the calibration error is large, and the size of a calibration device is heavy compared with that of a thermometer, a technical scheme capable of solving the problems is urgently needed.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is to provide an electric iron thermometer calibrating device, realize the temperature probe when calibration and the stable contact of thermometer measurement station, to producing the temperature cis-running carry out accurate temperature compensation, reduce calibration error, improve the convenience when calibrating device uses.
In order to achieve the technical purpose, the utility model provides an electric soldering iron thermometer calibrating device, which comprises a temperature measuring probe, a probe external structure and a matched calibrating terminal;
the temperature measuring probe comprises:
the temperature sensor comprises a first temperature sensor, a second temperature sensor, a heater, a heating block, a first temperature sensor connecting end, a second temperature sensor connecting end, a heater connecting end, a heat preservation end, a probe connecting part and a heating block fixing part;
the heating block is made of metal materials with good heat conductivity, and the temperature sensor I, the temperature sensor II and the heater are embedded in the heating block; the first temperature sensor and the second temperature sensor are both high-precision resistance type thermosensitive sensors; one connecting end of the temperature sensor is connected to the lower part of the temperature sensor; the connection end of the second temperature sensor is connected below the second temperature sensor; the connecting end of the heater is connected below the heater; the temperature sensor connecting end, the temperature sensor connecting end and the heater connecting end are all positioned in the heating block fixing part; the heating block fixing part is positioned below the heating block, and the lower part of the heating block fixing part is Fang Jieyou heat preservation end; a tubular probe connecting part is fixedly connected to the lower side of the heat preservation end;
the probe outer structure comprises;
the movable ring, the connecting part and the holding part;
the movable ring is of a tubular structure and is sleeved on the inner side of the connecting part; the connecting part is of a tubular structure, three stages of stepped structures which are gradually reduced from top to bottom are arranged in the connecting part, and a holding part is fixedly connected below the connecting part; the holding part is of a tubular structure;
the calibration terminal is a display device, and a temperature control module, a PID temperature regulation algorithm module and a display module are arranged in the calibration terminal;
the temperature control module is connected with the heater, outputs stable electric signals, and collects and arranges temperature signals of the first temperature sensor and the second temperature sensor; the PID algorithm module receives signals of the first temperature sensor and the second temperature sensor collected by the temperature control module respectively, and calculates the size and time of a stable electric signal output by the temperature control module through a built-in algorithm; the display module processes the information arranged by the temperature control module and displays and outputs the temperature measured by the temperature transmitter;
furthermore, the probe connecting part of the temperature measuring probe is provided with an external thread, the lower section of the connecting part of the external structure of the probe is provided with a matched internal thread, and the temperature measuring probe is connected with the external structure of the probe through rotation;
furthermore, the calibration terminal is connected with a temperature measuring probe through a lead;
furthermore, the interior of the lead is divided into a plurality of connecting wires which are respectively connected with a temperature sensor connecting end, a temperature sensor connecting end and a heater connecting end, and the connecting wires pass through the tubular connecting part after passing through the heat preservation part;
furthermore, the outer side of the middle part of the movable ring is provided with an annular recess with a certain height, the height of the annular recess is the telescopic motion range of the movable ring, the annular opening at the lower end of the annular recess is provided with a plurality of pressing springs, the other ends of the springs are connected to the second section of stepped surface of the connecting end, and the movable ring can do small-range telescopic motion relative to the connecting part;
furthermore, three limiting holes are formed in the upper end face of the movable ring, and the size and the shape of the limiting holes are matched with those of a temperature sensing wire support of an electric soldering iron thermometer; the temperature sensing wire of the soldering iron thermometer is fixed through three vertically arranged supports, the supports are universal for the electric soldering iron thermometer, and the temperature sensing wire is a standard piece;
furthermore, the upper end of the first temperature sensor is exposed out of the heating block and is positioned at the center of the heating block, and the temperature sensor measures the electric shock temperature;
furthermore, the second temperature sensor is arranged in the heating block and used for measuring the temperature of the heating block;
further, the heater is arranged in the heating block and used for transferring heat to the heating block;
furthermore, the heating block is used for receiving the heat of the heater and simultaneously conducting the heat to the first temperature sensor and the second temperature sensor;
furthermore, the measured temperatures of the first temperature sensor and the second temperature sensor are compared in real time to form temperature feedback, so that the synchronism and real-time accuracy of temperature measurement and control are achieved;
furthermore, the lead is connected with the temperature measuring probe, a hard lead shell is fixedly connected to the connection part of the lead, and the length of the lead shell exceeds the lower end of the holding part;
furthermore, the movable part, the connecting part and the holding part are all made of high-temperature-resistant hard inorganic high polymer materials;
furthermore, the first temperature sensor and the second temperature sensor are platinum resistance temperature sensors;
further, the heater is an electromagnetic high-frequency heater;
further, the heating block is made of high-purity red copper;
furthermore, the protected heat-preservation end is made of a material with poor insulation and heat conductivity;
according to the structure, the utility model has the following beneficial effects;
1. the calibration terminal is used for adjusting the heating value of the heater according to the detection result of the temperature sensor so that the temperature of the temperature probe is within a preset range, the controller can adjust the temperature of the temperature probe in real time, the temperature of the probing probe is ensured to be within a stable range, and the problems of temperature sequential error and unstable heat source during calibration of the conventional electric soldering iron thermometer are solved;
2. the groove at the top end of the movable ring can be matched with a support of a temperature sensing wire on an electric soldering iron thermometer to fix the position of the temperature measuring probe, and the movable ring can stretch out and draw back to a certain extent, so that the temperature measuring probe can be exposed out of the end face of the movable ring and can be matched with the limiting hole to accurately and tightly fit a measuring point;
3. the utility model discloses a device size is small and exquisite, is applicable to the quick calibration of electric iron thermometer, compares in conventional calibrating device, when increasing substantially the detection speed, guarantees the higher calibration accuracy of this novel calibrating device.
Drawings
FIG. 1 is a schematic view of an electric soldering iron thermometer calibrating device according to the present invention;
FIG. 2 is a top view of a temperature measuring probe of the calibrating device for an electric soldering iron thermometer of the present invention;
FIG. 3 is a cross-sectional view of a temperature measuring probe of the calibrating device for the electric soldering iron thermometer of the present invention;
FIG. 4 is a partial enlarged view of the position A in the cross-sectional view of the temperature measuring probe of the calibrating device for the electric soldering iron thermometer of the present invention;
FIG. 5 is a partial enlarged view of the position B in the cross-sectional view of the temperature measuring probe of the calibrating device for the electric soldering iron thermometer of the present invention;
FIG. 6 is a partial enlarged view of the position C in the cross-sectional view of the temperature measuring probe of the calibrating device for the electric soldering iron thermometer of the present invention;
FIG. 7 is a schematic diagram of the calibrating apparatus for the electric soldering iron thermometer of the present invention;
in the figure, 1, a temperature measuring probe; 2. a movable ring; 3. a connecting portion; 4. a holding portion; 5. a wire; 6. calibrating the terminal; 101. a first temperature sensor; 102. a second temperature sensor; 103. a heater; 104. a heating block; 105. the temperature sensor is connected with the connecting end; 106. a second temperature sensor connecting end; 107. a heater connection end; 108. a heat preservation end; 109. A probe connecting part; 110. a heating block fixing part; 201. a limiting hole; 202. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the utility model relates to a calibration device for an electric soldering iron thermometer, which comprises a temperature measuring probe 1, a movable ring 2, a connecting part 3, a holding part 4, a conducting wire 5 and a calibration terminal 6;
the temperature measuring probe 1 is arranged inside the movable ring 2; the movable ring 2 is sleeved in the connecting part 3, and the outer diameter of the movable ring 2 is smaller than the inner diameter of the connecting part 3; the holding part 4 is fixedly connected below the connecting part 3, the diameter of the holding part is smaller than that of the connecting part 3, and the size of the holding part is matched with that of the palm of a normal adult; the calibration terminal 6 is a display device and is connected below the holding part 4 through a lead 5;
referring to fig. 2, circular limiting holes 201 with the same size and arranged at equal intervals are arranged on the upper ring surface of the movable ring 2; the limiting hole 201 forms a triangle on the plane, and the specification of the triangle is matched with the specification of the triangle formed by three supports of a standard temperature sensing wire on the electric soldering iron thermometer;
referring to fig. 3, 4, 5 and 6, in the temperature probe 1, the first temperature sensor 101 is a platinum resistance temperature sensor, which is longer than the heating block 104, and the top end of the first temperature sensor is semicircular to be attached to a measuring point, so as to detect temperature data after the measuring point is attached to the first temperature sensor 101; the heating block 104 is made of high-purity red copper metal with good heat conductivity, and the heater 103 arranged in the heating block is an electromagnetic high-frequency heater; the heater 103 receives the stable electric signal, releases heat and transmits the heat to the first temperature sensor 101 and the second temperature sensor 102 through the heating block 104; the second temperature sensor 102 is arranged in the heating block 104 and used for measuring the temperature in the heating block 104, and the second temperature sensor 102 is also a platinum resistor temperature sensor;
the temperature sensor connecting end 105 is connected below the first temperature sensor 101; the second temperature sensor connecting end 106 is connected below the second temperature sensor 102; the heater connecting end 107 is connected below the heater 103; the temperature sensor connecting end 105, the temperature sensor connecting end 106 and the heater connecting end 107 are all positioned in the heating block fixing part 110; the heating block fixing part 110 is arranged below the heating block 104, and a heat preservation end 108 is connected below the heating block fixing part 110; a tubular probe connecting part 109 is fixedly connected to the lower side of the heat preservation end 108; the probe connecting part 109 is provided with an external thread, the lower section of the connecting part 3 of the external structure of the probe is provided with a matched internal thread, and the temperature measuring probe 1 is connected with the external structure of the probe through rotation;
the outer side of the middle part of the movable ring 2 is provided with an annular recess with a certain height, the height of the annular recess is the telescopic motion range of the movable ring 2, the annular opening at the lower end of the annular recess is provided with a plurality of pressing type springs 202, the other ends of the springs 202 are connected to the connecting part 3, and the movable ring 2 can do small-range telescopic motion relative to the connecting part 3;
referring to fig. 7, the first temperature sensor 101 measures the temperature of a measuring point of the temperature measuring probe 1, which is in contact with an electric soldering iron thermometer, the second temperature sensor 102 measures the temperature of the heating block 104 in the temperature measuring probe 1, the measured temperatures of the first temperature sensor 101 and the second temperature sensor 102 are compared in real time to form temperature feedback, and data are transmitted to the calibration terminal 6; the calibration terminal is a display device, and the internal program of the calibration terminal is provided with a temperature control module, a PID temperature regulation algorithm module and a display module; the temperature control module of the calibration terminal 6 receives the temperature data, and judges whether the difference between the temperature of the measuring point and the temperature of the heating block 104 is less than 1 degree centigrade:
if the judgment result is false, calling a PID temperature adjustment algorithm module to calculate the magnitude and the period of a heating electric signal according to the temperature data of the first temperature sensor 101 and the second temperature sensor 102, outputting the signal to the heater 103, controlling the heater 103 to perform temperature compensation on the first temperature sensor 101, repeatedly measuring the temperature of the measuring point and the temperature of the heating block 104, and continuously executing the judgment condition;
if the judgment result is true, outputting the temperature value of the first temperature sensor 101 to a display module, and displaying the temperature value on the calibration terminal 6;
specifically, when the electric soldering iron thermometer is calibrated, the temperature measuring probe 1 is arranged on a calibration terminal and heated to 700 ℃, when the temperature in the temperature measuring probe 1 is balanced, the limiting hole 201 on the movable ring 2 is placed in alignment with a temperature sensing wire support of the electric soldering iron thermometer, a measurer holds the novel holding part 4 by hand, a certain acting force is applied to the position of a measuring point, the movable ring 2 contracts for a certain distance to the connecting part 3, the temperature measuring probe 1 moves towards the measuring point relative to the movable ring 2, the temperature measuring probe 1 further clings to the position of the measuring point, and after the reading of the thermometer is stable;
and measuring, wherein the temperature displayed by the electric soldering iron thermometer is 700.5 ℃, and the temperature displayed by the calibration terminal 6 is 699.8.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (6)
1. An electric soldering iron thermometer calibrating device is characterized by comprising a temperature measuring probe (1), a probe external structure and an adaptive calibrating terminal (6);
the temperature measuring probe (1) comprises:
the temperature sensor comprises a first temperature sensor (101), a second temperature sensor (102), a heater (103), a heating block (104), a first temperature sensor connecting end (105), a second temperature sensor connecting end (106), a heater connecting end (107), a heat preservation end (108), a probe connecting part (109) and a heating block fixing part (110);
the first temperature sensor (101), the second temperature sensor (102) and the heater (103) are arranged in the heating block (104); the temperature sensor connecting end (105) is connected below the first temperature sensor (101); the second temperature sensor connecting end (106) is connected below the second temperature sensor (102); the heater connecting end (107) is connected below the heater (103); the temperature sensor connecting end (105), the temperature sensor connecting end (106) and the heater connecting end (107) are all positioned in the heating block fixing part (110); the heating block fixing part (110) is positioned below the heating block (104), and a Fang Jieyou heat preservation end (108) is arranged below the heating block fixing part (110); a tubular probe connecting part (109) is fixedly connected to the lower side of the heat preservation end (108);
the probe outer structure comprises;
a movable ring (2), a connecting part (3) and a holding part (4);
the movable ring (2) is of a tubular structure and is sleeved on the inner side of the connecting part (3); the connecting part (3) is of a tubular structure, a three-stage stepped structure gradually reduced from top to bottom is arranged in the connecting part, and a holding part (4) is fixedly connected below the connecting part (3).
2. The electric soldering iron thermometer calibrating device as claimed in claim 1, characterized in that the outer side of the middle of the movable ring (2) is provided with an annular recess with a certain height, the height of the annular recess is the telescopic movement range of the movable ring (2), the lower annular opening of the annular recess is provided with a plurality of pressing type springs (202), the other ends of the springs (202) are connected to the second section of the stepped surface of the connecting part (3), and the movable ring (2) can do small-range telescopic movement relative to the connecting part (3).
3. An electric soldering iron thermometer calibrating device as claimed in claim 2, characterized in that the upper end face of the movable ring (2) is provided with three limiting holes (201) which are matched with the temperature sensing wire support of the electric soldering iron thermometer in size and shape.
4. The electric soldering iron thermometer calibrating device as claimed in claim 1, wherein the first temperature sensor (101) measures the temperature of a measuring point of the temperature measuring probe (1) contacted with the electric soldering iron thermometer, the second temperature sensor (102) measures the temperature of the heating block (104) in the temperature measuring probe (1), and the measured temperatures of the first temperature sensor (101) and the second temperature sensor (102) are compared in real time to form temperature feedback.
5. An electric soldering iron thermometer calibration device as claimed in claim 1, wherein the first temperature sensor (101) and the second temperature sensor (102) are platinum resistance temperature sensors.
6. An electric soldering iron thermometer calibrating device as claimed in claim 1, characterized in that the probe connecting part (109) of the temperature measuring probe (1) is provided with an external thread, the lower section of the connecting part (3) of the external probe structure is provided with a matching internal thread, and the temperature measuring probe (1) is connected with the external probe structure by rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221983751.6U CN218524263U (en) | 2022-07-29 | 2022-07-29 | Electric iron thermometer calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221983751.6U CN218524263U (en) | 2022-07-29 | 2022-07-29 | Electric iron thermometer calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218524263U true CN218524263U (en) | 2023-02-24 |
Family
ID=85241985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221983751.6U Expired - Fee Related CN218524263U (en) | 2022-07-29 | 2022-07-29 | Electric iron thermometer calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218524263U (en) |
-
2022
- 2022-07-29 CN CN202221983751.6U patent/CN218524263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20230224 |