CN215492139U - Temperature measuring device - Google Patents

Abstract

The utility model provides a temperature measuring device, which comprises a temperature measuring cable, a temperature detecting unit and a temperature measuring instrument, wherein one end of the temperature measuring cable is connected to the temperature measuring instrument, and the other end of the temperature measuring cable extends out of the temperature measuring instrument and is connected to the temperature detecting unit; one end of the temperature measuring cable, which is connected with the temperature detecting unit, can move relative to the temperature measuring instrument so as to change the distance between the temperature detecting unit and the temperature measuring instrument. The operating personnel can adjust the relative position between the temperature measuring cable and the temperature measuring instrument and the position of the temperature measuring cable in the measuring environment according to the actual condition of the environment where the measured target is located, so that the influence of the heat radiation generated by the body of the temperature measuring instrument on the measuring result of the environment temperature is avoided; in addition, the thermometer does not need to be moved repeatedly in the actual operation process, and the position of the temperature detection unit in the measurement environment can be adjusted by only moving the temperature measurement cable, so that the measurement efficiency and the operation convenience of the temperature measurement device are improved.

Description

Temperature measuring device

Technical Field

The utility model relates to the technical field of temperature detection, in particular to a temperature measuring device.

Background

The thermometers are widely applied in production and life, for example, temperature measurement is carried out on a target object or a target object in metal smelting and biological health detection. In practical application, the temperature of the environment where the object or object to be measured is located may affect the accuracy of the measurement result, and further generate the ambient temperature interference deviation. The idea for solving the problems is as follows: and measuring the temperature of the measured target, measuring the temperature of the environment where the measured target is located, and then performing compensation correction on the measured value of the temperature of the measured target. Therefore, it is very important to accurately measure the temperature of the environment where the target is located.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an improved thermometric device.

The utility model provides a temperature measuring device which comprises a temperature measuring cable, a temperature detecting unit and a temperature measuring instrument, wherein one end of the temperature measuring cable is connected to the temperature measuring instrument, and the other end of the temperature measuring cable extends out of the temperature measuring instrument and is connected to the temperature detecting unit; one end of the temperature measuring cable, which is connected with the temperature detecting unit, can move relative to the temperature measuring instrument so as to change the distance between the temperature detecting unit and the temperature measuring instrument.

In one embodiment, the temperature detection unit includes a temperature sensing chip and a flexible circuit board, and the flexible circuit board is electrically connected to the temperature sensing chip and the temperature measurement cable, respectively.

So set up, flexible circuit board's setting makes the temperature signal that temperature sensing chip sensed can turn into the signal of telecommunication to transmit the thermoscope through the temperature measurement cable.

In one embodiment, the temperature sensing chip is soldered to the flexible circuit board.

So set up, temperature detecting element's simple structure, and the ability that produces bending deformation is stronger, and the bending performance after being connected with the temperature measurement cable is more showing, can be in the measuring target place environment nimble, swiftly adjust temperature detecting element's sensing position.

In one embodiment, the temperature detection unit further includes a PCB, the temperature sensing chip is electrically connected to the PCB, and the PCB is electrically connected to the flexible circuit board.

So set up, temperature detecting element is more reliable with being connected of temperature measurement cable, and the durability is higher, and assembly cost is lower, is favorable to prolonging temperature measuring device's life.

In one embodiment, the temperature measuring cable comprises a temperature measuring conducting wire, one end of the temperature measuring conducting wire is used for being connected with the temperature measuring instrument, and the other end of the temperature measuring conducting wire is welded with the flexible circuit board.

So set up, the electric connection between temperature measurement cable and the temperature detecting element is more reliable, and the durability is better.

In one embodiment, the temperature measuring cable includes a temperature measuring wire, a power line and/or a network cable, and the temperature measuring wire, the power line and/or the network cable is electrically connected to the temperature detecting unit through the flexible circuit board and can be connected to a temperature measuring instrument.

According to the arrangement, the temperature measurement cable can integrate the functions of temperature measurement signal transmission, power supply for the temperature detection unit and/or data communication between the temperature detection unit and the temperature measuring instrument, so that the operation steps required for connecting a plurality of wire harnesses for realizing the functions with the temperature measuring instrument respectively can be reduced, and the use convenience of the temperature measuring device is improved.

In one embodiment, the temperature measuring cable further comprises a protective layer, wherein the protective layer is hollow and is sleeved with the temperature measuring conducting wire, the power line and/or the network cable; and a sealant is arranged in the protective layer and is filled in gaps among the temperature measuring conducting wires, the power line and/or the network cable.

So set up, the inside of temperature measurement cable has better gas tightness, can avoid steam or dust particle to get into inside the temperature measurement cable to promote the dustproof and waterproof effect of thermoscope, therefore can further improve temperature measuring device's durability, prolong its life.

In one embodiment, a plug is further disposed at one end of the temperature measuring cable relatively far away from the temperature detecting unit, and the plug is electrically connected to the temperature measuring wire, the power line and/or the network cable and can be connected to the temperature measuring instrument.

According to the arrangement, the temperature measurement wire and the power line and/or the network cable shell are synchronously connected with the temperature measuring instrument through the plug, the temperature measurement cable is integrally connected with the temperature measuring instrument more conveniently, and the operation is convenient and fast.

In one embodiment, a sealing connecting piece is further sleeved outside the temperature measuring cable, is provided with a thread, and can extend into the temperature measuring instrument and be in threaded sealing connection with the temperature measuring instrument.

So set up, sealing connecting piece can improve the gas tightness of thermoscope, and dustproof and waterproof effect is good, therefore can show the holistic durability and the reliability of improvement temperature measuring device.

In one embodiment, the temperature measuring instrument comprises a shell, a sleeve part for communicating the inside and the outside of the temperature measuring instrument is arranged on the shell, the temperature measuring cable penetrates through the sleeve part and extends into the temperature measuring instrument, and a sealing glue is filled between the inner wall surface of the sleeve part and the outer peripheral wall of the temperature measuring cable.

So set up, sealed glue can realize the reliable bonding between temperature measurement cable and the casing to can also eliminate the space between temperature measurement cable and the sleeve part inner wall, waterproof dustproof effect is more excellent, is showing the holistic durability and the reliability that have improved temperature measuring device.

The temperature measuring device provided by the utility model can be used for accurately measuring the temperature of the environment where the measured target is located. The operating personnel can adjust the relative position between the temperature measuring cable and the temperature measuring instrument and the position of the temperature measuring cable in the measuring environment according to the actual condition of the environment where the measured target is located, so that the influence of the heat radiation generated by the body of the temperature measuring instrument on the measuring result of the environment temperature is avoided; in addition, in the actual operation process, an operator does not need to repeatedly move the temperature measuring instrument, only moves the temperature measuring cable and adjusts the position of the temperature detecting unit in the measuring environment, and therefore the measuring efficiency and the operation convenience of the temperature measuring device are improved.

Drawings

FIG. 1 is a schematic view of a portion of a temperature measuring device according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of a temperature measuring cable according to one embodiment of the present invention;

FIG. 3 is a partial schematic structural view of a temperature measuring cable according to one embodiment of the present invention;

FIG. 4 is a schematic view of the assembly of the temperature measuring cable and the cover according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of the temperature measuring cable shown in FIG. 4 assembled with the cover body at another viewing angle.

Description of reference numerals:

100. a temperature measuring cable; 10. a temperature detection unit; 11. a temperature sensing chip; 20. a flexible circuit board; 30. a temperature measuring conducting wire; 40. a power line; 50. a network cable; 60. a plug; 70. a protective layer; 200. a temperature measuring device; 210. a temperature measuring instrument; 211. a cover body; 212. a body; 213. a sealing connection; 214. a sleeve portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The thermometers are widely applied in production and life, for example, temperature measurement is carried out on a target object or a target object in metal smelting and biological health detection. In practical application, the temperature of the environment where the object or object to be measured is located affects the accuracy of the measurement result of the temperature measuring instrument, and further generates interference deviation caused by the environment temperature. The guiding idea for solving the problems is as follows: the temperature of the environment where the measured object is located is measured while the temperature of the measured object is measured, and then compensation correction is carried out on the measured value of the temperature of the measured object. Therefore, it is necessary for the temperature measuring instrument to implement and accurately measure the temperature of the environment where the measured target is located.

The outside of the existing thermodetector body is usually fixedly provided with a sensor for measuring the ambient temperature so as to obtain the temperature value of the environment where the target to be measured is located. The environment temperature measuring method can cause deviation due to heat radiation on the surface of the temperature measuring instrument body, so that the environment temperature value measured by the sensor is higher than the actual environment temperature value, and the sensor is difficult to overcome the influence of the heat radiation of the temperature measuring instrument due to strong heat conductivity of the surface of the temperature measuring instrument body.

In view of this, the present invention provides a temperature measuring device 200, the temperature measuring device 200 includes a temperature measuring instrument 210, a temperature measuring cable 100 and a temperature detecting unit 10, wherein the temperature measuring cable 100 is used for measuring the temperature of the environment where the measured object is located, and the temperature measuring instrument 210 performs compensation and correction on the measured value of the temperature of the measured object according to the environment temperature measured by the temperature measuring cable 100.

Please refer to fig. 1 to 5. One end of the temperature measuring cable 100 is connected to the core inside the temperature measuring instrument 210, and the other end is provided with the temperature detecting unit 10. The temperature measuring cable 100 connected with the temperature detecting unit 10 extends out of the temperature measuring instrument 210 and is connected with the temperature detecting unit 10 so that the temperature detecting unit 10 is exposed to the temperature measuring instrument 210.

The temperature measuring cable 100 is flexible, and one end of the temperature measuring cable 100 connected with the temperature detecting unit 10 can move relative to the temperature measuring instrument 210, so that the distance between the temperature detecting unit 10 and the temperature measuring instrument 210 is changed, and the distance between the temperature detecting unit 10 and the temperature measuring instrument 210 is changed within the range not less than the straightening length of the temperature measuring cable 100. The temperature measuring cable 100 is connected with the temperature detecting unit 10 to form a cable assembly.

Specifically, the extended length of the temperature measuring cable 100 can ensure that the distance between the temperature detecting unit 10 and the casing surface of the temperature measuring instrument 210 is not less than 1m when the temperature detecting unit 10 is farthest away from the casing surface of the temperature measuring instrument 210.

With the arrangement, a user can adjust the distance between the temperature detection unit and the temperature measuring instrument 210 body, and adjust the laying or bending direction of the temperature measuring cable 100 according to actual use requirements. After a user pulls one end of the temperature measuring cable 100, which is connected with the temperature detecting unit 10, away from the temperature measuring instrument 210, the influence degree of the thermal radiation of the body of the temperature measuring instrument 210 on the temperature detecting unit 10 is reduced, so that the environment temperature measured by the temperature detecting unit 10 is ensured to be closer to the real environment temperature value.

Further, the temperature detecting unit 10 includes a temperature sensing chip 11 and a flexible circuit board 20. The temperature sensing chip 11 is used for sensing the temperature of the surrounding environment, and in the embodiment, the measurement precision of the temperature sensing chip 11 is 0.001 ℃; the flexible circuit board 20, also referred to as an FPC board, is used for connecting metal wires and electrical devices, and may also be used alone as a circuit board. The flexible circuit board 20 is electrically connected to the temperature sensing chip 11 and the temperature measuring cable 100, respectively.

The flexible circuit board 20 is disposed such that a temperature signal sensed by the temperature sensing chip 11 can be converted into an electrical signal and transmitted to the temperature measuring instrument 210 through the temperature measuring cable 100.

Specifically, in the present embodiment, the temperature sensing chip 11 is soldered to the flexible circuit board 20.

So set up, temperature detecting element 10's simple structure, and the ability that produces bending deformation is stronger, and the bending performance after being connected with temperature measurement cable 100 is more excellent, and the user can be in order to realize accurate sensing by nimble, swiftly adjusting temperature detecting element 10's position in the target place environment that is surveyed.

The temperature measurement cable 100 includes a temperature measurement wire 30, the temperature measurement wire 30 is flexible and bendable, and is used for transmitting an electrical signal related to temperature from the temperature detection unit 10 to the temperature measurement instrument 210, one end of the temperature measurement wire is welded with the flexible circuit board 20 and forms a temperature sensing line together with the flexible circuit board 20, and the other end of the temperature measurement wire is connected with a movement of the temperature measurement instrument 210. Optionally, in this embodiment, two pieces of single-core copper wire are used as the temperature measuring wire 30. With the arrangement, the temperature measuring conducting wire 30 and the flexible circuit board 20 can form reliable electric connection, and the temperature measuring conducting wire and the flexible circuit board are not easy to break to cause circuit break.

Optionally, in some embodiments, the temperature detecting unit 10 further includes a PCB board, and the temperature sensing chip 11 is electrically connected to the PCB board, and the PCB board is electrically connected to the flexible circuit board 20.

With the arrangement, the temperature detection unit 10 is more reliably connected with the temperature measurement cable 100, the durability is higher, the assembly and connection cost is lower, and the service life of a cable assembly formed by connecting the temperature detection unit and the temperature measurement cable is longer, so that the service life of the temperature measurement device 200 is prolonged.

Specifically, the electrical connection between the PCB board and the flexible circuit board 20 may be realized by a flexible board connector, a flexible-rigid composite board, or the like. In the present embodiment, the PCB and the flexible circuit board 20 are soldered, so that the production cost of the cable assembly can be further reduced.

Please refer to fig. 2 and fig. 5 again. Further, in this embodiment, the temperature measurement cable 100 further includes a power line 40 and a network cable 50, the power line 40 is used for supplying power from the temperature measuring instrument 210 to the temperature detection unit 10, and the network cable 50 is used for realizing data transmission between the temperature detection unit 10 and the core of the temperature measuring instrument 210. One end of the power line 40 and one end of the network line 50 are electrically connected with the temperature detection unit 10 through the flexible circuit board 20, and the other ends of the power line and the network line can extend into the shell of the temperature measuring instrument 210 and are connected with the movement of the temperature measuring instrument 210.

With the arrangement, the temperature measurement cable 100 can integrate the functions of temperature measurement signal transmission, power supply to the temperature detection unit 10 and data communication between the temperature detection unit 10 and the temperature detector 210, so that the operation steps required for connecting a plurality of wiring harnesses for realizing the functions with the temperature detector 210 can be reduced, and the connection and use convenience of the temperature measurement device 200 are improved.

It is understood that in other embodiments, the temperature measuring cable 100 may be provided with only one of the power line 40 and the network line 50, for example, when the temperature detecting unit 10 has a function of automatic power supply, the power line 40 may not be provided.

Please refer to fig. 2, fig. 4 to fig. 5 again. Further, in this embodiment, the temperature measuring cable 100 is further provided with a plug 60 at an end relatively far away from the temperature detecting unit 10, and the plug 60 is electrically connected to the temperature measuring conducting wire 30, the power line 40 and the network cable 50, and can extend into the shell of the temperature measuring instrument 210 to be connected to the socket board inside the temperature measuring instrument 210, so as to form a power supply loop and an information transmission interaction loop between the temperature detecting unit 10 and the temperature measuring instrument 210.

With the arrangement, the temperature measuring lead 30, the power line 40 and the network cable 50 can be synchronously connected with the temperature measuring instrument 210 through the plug 60, so that the temperature measuring cable 100 is more conveniently connected with the temperature measuring instrument 210 and is faster and faster to operate; in addition, the plug 60 and the socket plate are connected inside the temperature measuring instrument 210, so that the temperature measuring instrument 210 can be prevented from being corroded by external dust or water vapor, and the service life of the temperature measuring device 200 is further prolonged.

Please refer to fig. 2 again. Further, in the present embodiment, the temperature measuring cable 100 further includes a protective layer 70, and the protective layer 70 is a hollow sleeve structure and made of a material with heat insulating property. The protective layer 70 is sleeved outside the temperature measuring conducting wire 30, the power line 40 and the network cable 50; the protective layer 70 is also filled with sealant, the sealant can fill gaps among the temperature measuring lead 30, the power line 40 and the network cable 50, and the temperature measuring lead 30, the power line 40, the network cable 50 and the inner wall surface of the protective layer 70 are bonded and fixed.

So set up, inside better gas tightness, can avoid steam or dust particle entering temperature measurement cable 100 of having of temperature measurement cable 100 to prevent inside steam or dust entering thermoscope 210 along temperature measurement wire 30, avoid the inside device of thermoscope 210 to damage, thereby reduce thermoscope 210's fault rate, therefore can further improve temperature measuring device 200's durability, prolong its life.

Further, in this embodiment, a sealing connector 213 is further sleeved outside the temperature measuring cable 100, and the sealing connector 213 is provided with a thread and can extend into the temperature measuring instrument 210 and be in threaded sealing connection with the temperature measuring instrument 210.

Please refer to fig. 2 again. Specifically, the sealing connector 213 is a hollow sleeve-shaped element made of silica gel, the outer peripheral wall of the sealing connector 213 is provided with threads, and the protective layer 70 of the temperature measuring cable 100 is inserted into the sealing connector 213 and is fixed with the inner wall surface of the sealing connector in a sealing manner; the thermometer 210 comprises a cylindrical body 212 and a cover 211 covering the end opening of the body 212, wherein the cover 211 is provided with a cable through hole, and the sealing connector 213 extends into the cable through hole and is in threaded sealing connection with the cover 211.

So set up, sealing connection piece 213 can improve thermoscope 210's gas tightness, can closely cooperate with thermoscope 210 to improve thermoscope 210's dustproof and waterproof effect, and then can show the holistic durability and the reliability of improvement temperature measuring device 200.

It is understood that in other embodiments, the cable through hole may also open to the body 212.

In some embodiments, the thermometer 210 casing is provided with a sleeve portion 214 for communicating the inside and the outside of the thermometer 210, the length of a cable passage penetrating the sleeve portion 214 in the axial direction is greater than the thickness of the thermometer 210 casing, the temperature measuring cable 100 is inserted into the cable passage of the sleeve portion 214 and extends into the thermometer 210, and a sealant is filled between the inner wall surface of the sleeve portion 214 and the outer peripheral wall of the temperature measuring cable 100.

Specifically, the sleeve portion 214 may be integrally formed with the thermometer 210 housing, or may be provided separately from the thermometer 210 housing and fixedly connected thereto.

So set up, sealed glue can realize the reliable bonding between temperature measurement cable 100 and the casing to can also eliminate the space between temperature measurement cable 100 and the sleeve portion 214, waterproof dustproof effect is more excellent, is showing the holistic durability and the reliability that have improved temperature measuring device 200.

It is understood that in other embodiments, the sealing fixation between the temperature measuring cable 100 and the inner wall surface of the cable channel can also be realized by adopting a spot-gluing sealing manner.

The temperature measuring device provided by the utility model can be used for accurately measuring the temperature of the environment where the measured target is located. The operating personnel can adjust the relative position between the temperature measuring cable and the temperature measuring instrument and the position of the temperature measuring cable in the measuring environment according to the actual condition of the environment where the measured target is located, so that the influence of the heat radiation generated by the body of the temperature measuring instrument on the measuring result of the environment temperature is avoided; in addition, in the actual operation process, an operator does not need to repeatedly move the temperature measuring instrument, only moves the temperature measuring cable and adjusts the position of the temperature detecting unit in the measuring environment, and therefore the measuring efficiency and the operation convenience of the temperature measuring device are improved.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. The temperature measuring device is characterized by comprising a temperature measuring cable (100), a temperature detecting unit (10) and a temperature measuring instrument (210), wherein one end of the temperature measuring cable (100) is connected to the temperature measuring instrument (210), and the other end of the temperature measuring cable extends out of the temperature measuring instrument (210) and is connected to the temperature detecting unit (10);

one end of the temperature measuring cable (100) connected with the temperature detecting unit (10) can move relative to the temperature measuring instrument (210) so as to change the distance between the temperature detecting unit (10) and the temperature measuring instrument (210).

2. The temperature measuring device according to claim 1, wherein the temperature detecting unit (10) comprises a temperature sensing chip (11) and a flexible circuit board (20), and the flexible circuit board (20) is electrically connected to the temperature sensing chip (11) and the temperature measuring cable (100), respectively.

3. The thermometric apparatus according to claim 2, wherein said temperature sensing chip (11) is soldered to said flexible circuit board (20).

4. The temperature measuring device according to claim 2, wherein the temperature detecting unit (10) further comprises a PCB board, the temperature sensing chip (11) is electrically connected to the PCB board, and the PCB board is electrically connected to the flexible circuit board (20).

5. The temperature measuring device according to claim 3 or 4, wherein the temperature measuring cable (100) comprises a temperature measuring conducting wire (30), one end of the temperature measuring conducting wire (30) is used for connecting the temperature measuring instrument (210), and the other end of the temperature measuring conducting wire is welded with the flexible circuit board (20).

6. The temperature measuring device according to claim 1, wherein the temperature measuring cable (100) comprises a temperature measuring wire (30), a power line (40) and/or a network cable (50), and the temperature measuring wire (30), the power line (40) and/or the network cable (50) is electrically connected with the temperature detecting unit (10) and can be connected to the thermometer (210).

7. The temperature measuring device according to claim 6, wherein the temperature measuring cable (100) further comprises a protective layer (70), the protective layer (70) is hollow and is sleeved with the temperature measuring conducting wire (30), the power line (40) and/or the network cable (50); and a sealant is arranged in the protective layer (70), and is filled in gaps among the temperature measuring conducting wires (30), the power wires (40) and/or the network cables (50).

8. The temperature measuring device according to claim 6, wherein a plug (60) is further disposed on an end of the temperature measuring cable (100) relatively far away from the temperature detecting unit (10), and the plug (60) is electrically connected to the temperature measuring conducting wire (30), the power line (40) and/or the network cable (50) and can be connected to the thermometer (210).

9. The temperature measuring device according to claim 1, wherein a sealing connecting piece (213) is further sleeved outside the temperature measuring cable (100), and the sealing connecting piece (213) is provided with a thread and can extend into the temperature measuring instrument (210) and be in threaded sealing connection with the temperature measuring instrument (210).

10. The temperature measuring device according to claim 8, wherein the temperature measuring instrument (210) comprises a housing, a sleeve portion (214) for communicating the inside and the outside of the temperature measuring instrument (210) is arranged on the housing, the temperature measuring cable (100) penetrates through the sleeve portion (214) and extends into the temperature measuring instrument (210), and a sealant is filled between the inner wall surface of the sleeve portion (214) and the outer peripheral wall of the temperature measuring cable (100).

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