Temperature measuring assembly for temperature sensor, temperature sensor and electrical system

Abstract

One or more embodiments of the present disclosure relate to a temperature measurement assembly for a temperature sensor, a temperature sensor, and an electrical system. A thermometric assembly (100) for a temperature sensor, comprising: a thermometric element (10) configured to generate a measurement signal representative of a temperature of an object (1A, 1B) to be measured; a thermally conductive body (20) configured to conduct heat of an object (1A, 1B) to be measured to the thermometric element (10), the thermally conductive body (20) comprising: a tubular portion (21) configured to receive the thermometric element (10), a protruding portion (22) extending from the tubular portion (21), the protruding portion (22) configured to abut a surface of the object (1A, 1B) to be measured, and a ground flange (23) located on the protruding portion (22) configured to connect a ground terminal (30), in this way, the heat-conducting body (20) is grounded. The temperature measuring assembly has the advantages of being compact in structure, convenient to use, low in manufacturing cost and the like.

Description

Technical Field

[0001] The present disclosure relates generally to temperature sensors and, more particularly, to a temperature measurement assembly for a temperature sensor. Background Art

[0002] Live equipment and the circuits used with it usually use temperature sensors to monitor their operating temperature. Good operating temperature monitoring can ensure that live equipment is in a suitable working state and avoid some potential safety problems or failures.

[0003] In some cases, the object to be measured or the point to be measured may have very small size, making it difficult for the probe of the temperature sensor to be fixed thereon to achieve temperature measurement, or it may not be in good contact with the object to be measured to achieve accurate measurement. Summary of the invention

[0004] In order to at least partially solve the above and other possible problems, the present disclosure provides a temperature measurement assembly for a temperature sensor, a temperature sensor, and an electrical system.

[0005] According to a first aspect of the present disclosure, a temperature measuring assembly for a temperature sensor is provided. The temperature measuring assembly includes a temperature measuring element and a heat-conducting body. The temperature measuring element is configured to generate a measurement signal representing the temperature of an object to be measured. The heat-conducting body is configured to conduct the heat of the object to be measured to the temperature measuring element. The heat-conducting body includes: a tubular portion configured to receive the temperature measuring element; a protruding portion extending from the tubular portion, the protruding portion configured to abut against the surface of the object to be measured; and a grounding flange located on the protruding portion, configured to connect a grounding terminal to ground the heat-conducting body.

[0006] According to one or more embodiments, the tubular portion, the protruding portion and the grounding flange together form a groove that receives a ring around the object to be measured to fix the temperature measurement assembly on the object to be measured.

[0007] According to one or more embodiments, the ground flange includes a flat portion configured to be clamped by a clamping member of the ground terminal.

[0008] According to one or more embodiments, the grounding flange extends from the protruding portion.

[0009] According to one or more embodiments, the tubular portion, the protruding portion and the grounding flange are integrally formed.

[0010] According to one or more embodiments, the temperature measuring component further comprises a transmission line configured to connect the temperature measuring element and the temperature sensor. The transmission line is partially received by the tubular portion. The temperature measuring element is configured to transmit the measurement signal to the temperature sensor via the transmission line.

[0011] According to one or more embodiments, the interior of the tubular portion is filled with an insulating heat-conductive material, and the temperature measuring element is separated from the tubular portion by the insulating heat-conductive material.

[0012] According to one or more embodiments, the protruding portion further includes a positioning hole, which is configured to be aligned with a mounting hole of the object to be measured, so as to fix the temperature measurement assembly on the object to be measured.

[0013] According to a second aspect of the present disclosure, a temperature sensor is provided. The temperature sensor comprises: a processing device; and a temperature measurement component for the temperature sensor according to the first aspect of the present disclosure.

[0014] According to a third aspect of the present disclosure, an electrical system is provided. The electrical system comprises an electrical device and a temperature sensor according to the second aspect of the present disclosure. The temperature sensor is configured to detect a temperature of at least a part of the electrical device.

[0015] These and other matters will become readily understood and elucidated through reference to the drawings and description of several embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other purposes, features and advantages of the exemplary embodiments disclosed herein will become more easily understood through the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several exemplary embodiments disclosed herein are shown by way of example and not limitation, in which:

[0017] Figure 1 A perspective view of a temperature measurement assembly according to an embodiment of the first aspect of the present disclosure is shown;

[0018] Figure 2 Shows Figure 1 A cross-sectional view of the temperature measurement assembly shown;

[0019] Figure 3a-Figure 3b An example of an object to be measured using the temperature measurement assembly provided according to the first aspect of the present disclosure is shown. Figure 3a is a side view of the example shown, Figure 3b yes Figure 3a A partial enlarged view of area A in FIG.

[0020] Figure 4a-4c Another example of an object to be measured using the temperature measurement assembly provided according to the first aspect of the present disclosure is shown, wherein Figure 4a is a perspective view of the example shown, Figure 4b is a plan view of the example shown, Figure 4c yes Figure 4b A partial enlarged view of region B in FIG. 1 ; and

[0021] Figure 5The diagram is a schematic block diagram showing an electrical system having a temperature sensor and an electrical device including a temperature measurement component provided according to the first aspect of the present disclosure.

[0022] Throughout the drawings, the same or corresponding reference numerals designate the same or corresponding parts. DETAILED DESCRIPTION

[0023] The subject matter described herein will now be discussed with reference to several example embodiments. These embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and do not imply any limitation on the scope of the subject matter.

[0024] The terms "including" or "comprising" and variations thereof should be read as open-ended terms meaning "including but not limited to." The term "or" should be read as "and / or," unless the context clearly indicates otherwise. The term "based on" should be read as "based, at least in part, on." The terms "one embodiment" and "an embodiment" should be read as "at least one embodiment." The term "another embodiment" should be read as "at least one other embodiment."

[0025] Unless otherwise specified or limited, the terms "connected" and "coupled" and variations thereof are used broadly and encompass both direct and indirect connections and couplings. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings. In the following description, like reference numerals and numbers are used to describe the same, similar or corresponding parts in the drawings. Other explicit and implicit definitions may be included below.

[0026] In existing designs, it is usually difficult to directly install a temperature sensor on the object to be measured due to the high temperature of the object to be measured. As an alternative, a temperature measuring component connected to the temperature sensor is installed on the object to be measured to obtain information associated with the temperature. However, conventional temperature measuring components are often complex in structure and large in size in order to adapt to the temperature measurement and installation of a variety of objects to be measured. As a result, the manufacturing cost of such temperature measuring components is relatively high. In addition, such temperature measuring components do not have a grounding terminal that is convenient for connecting the grounding function, which results in the need to adjust and install the grounding function of the temperature measuring component before the temperature measurement operation, which in turn results in a complicated temperature measurement process. This also results in complicated steps for disassembling the temperature measuring component. Therefore, it is desired to have a temperature measuring component that is compact in structure, easy to use, and low in manufacturing cost.

[0027] The present disclosure aims to provide a temperature measurement component to at least partially solve these problems.

[0028] Figure 1 and Figure 2 An example of a temperature measurement component 100 for a temperature sensor provided by the present disclosure is schematically shown, wherein Figure 1A perspective view of a temperature measurement assembly according to an embodiment of the first aspect of the present disclosure is shown, Figure 2 Shows Figure 1 The cross-sectional view of the temperature measuring assembly shown. The temperature measuring assembly 100 includes a temperature measuring element 10 and a heat conducting body 20. The heat conducting body 20 includes a tubular portion 21, a protruding portion 22 extending from the tubular portion 21, and a grounding flange 23 located on the protruding portion 22. The tubular portion 21 is configured to receive the temperature measuring element 10. The protruding portion 22 is configured to abut against the surface of the object to be measured, so that the heat of the object to be measured is conducted to the temperature measuring element 10 through the heat conducting body 20. The temperature measuring element 10 is used to generate a measurement signal representing the temperature of the object to be measured in response to the heat conducted from the heat conducting body 20. The processing device (not shown) of the temperature sensor is configured to determine the temperature of the object to be measured based on the measurement signal. In one example, the temperature measuring element 10 can be a negative temperature coefficient NTC thermistor. The negative temperature coefficient NTC thermistor can change the resistance in response to the change of temperature, so that an electrical signal representing the temperature of the object to be measured can be generated. The electrical signal is then sent to the processing device of the temperature sensor.

[0029] The processing device of the temperature sensor is configured to receive and process the electrical signal to determine the temperature of the object to be measured. In an alternative example, the temperature measuring element 10 may be a resistance temperature detector RTD. The resistance temperature detector RTD may also change resistance in response to changes in temperature, so that an electrical signal representing the temperature of the object to be measured can be generated. The processing device of the temperature sensor then determines the temperature of the object to be measured based on the electrical signal. The processing device of the temperature sensor may also be connected to a user interface such as a display so as to display information about the temperature of the object to be measured to the user. Examples of objects to be measured and their application to the temperature measurement component provided by the present disclosure will be described below in conjunction with Figure 3a-Figure 4c Give a description.

[0030] Continue to refer Figure 1 and Figure 2 , the temperature measuring element 10 can be connected to the processing device of the temperature sensor by wire or wirelessly. In the example shown, the temperature measuring element 10 is connected to the processing device of the temperature sensor via a transmission line 11. The transmission line 11 is configured to transmit a measurement signal representing the temperature of the object to be measured from the temperature measuring element 10 to the processing device of the temperature sensor. The transmission line 11 can be partially received by the tubular portion 21. In an alternative example, the temperature measuring element 10 may include a wireless module, such as an antenna, for wirelessly transmitting the measurement signal from the temperature measuring element 10 to the processing device of the temperature sensor. Other components can also be applied to connect the temperature measuring element 10 to the processing device of the temperature sensor by wire or wirelessly.

[0031] When the temperature measurement assembly 100 is used to measure an object to be measured, the grounding flange 23 can be configured to connect a grounding terminal to ground the thermal conductive body 20. This can prevent the potential of the object to be measured from affecting the measurement result.

[0032] The grounding flange 23 may further include a flat portion. The flat portion is configured to be clamped by a clamping member of a grounding terminal so that the grounding terminal can be conveniently connected to the grounding flange 23. The flat portion may also be configured to be inserted into the grounding terminal so that the grounding flange 23 is connected to the grounding terminal.

[0033] In one embodiment, the interior of the tubular portion 21 may be filled with an insulating heat-conducting material M, and the temperature measuring element 10 is spaced apart from the tubular portion 21 by the insulating heat-conducting material M. The insulating heat-conducting material is used for conducting heat and electrical insulation. The insulating heat-conducting material may be selected from the group consisting of polyimide (PI), polytetrafluoroethylene (PTFE), polyphenylene ether (PPE), glass fiber reinforced plastic (FRP), and ceramic material. The heat from the object to be measured is conducted to the temperature measuring element 10 via the insulating heat-conducting material M through the heat-conducting body 20.

[0034] In addition, after the temperature measuring element 10 is coated with the insulating thermal conductive material, the air gap around the temperature measuring element 10 is reduced, thereby reducing the high thermal resistance caused by the incomplete contact between the insulating thermal conductive material and the temperature measuring element 10. The heat transfer efficiency of the heat-conducting body 20 of the temperature measuring component 100 to the temperature measuring element 10 is thereby improved, and the temperature measuring element 10 can more accurately measure the temperature of the object to be measured. The insulating thermal conductive material M also prevents the charge on the heat-conducting body 20 from migrating to the temperature measuring element 10, so as to further prevent the potential of the object to be measured in contact with the heat-conducting body 20 from affecting the measurement of the temperature measuring element 10. This also improves the reliability and service life of the temperature measuring element 10.

[0035] In one embodiment, the tubular portion 21, the protruding portion 22 and the grounding flange 23 may be integrally formed. In other embodiments, the tubular portion 21, the protruding portion 22 and the grounding flange 23 may be manufactured independently and then assembled together. The heat conducting body 20 formed in this way has a simple structure and a low manufacturing cost.

[0036] In one embodiment, the tubular portion 21, the protruding portion 22 and the grounding flange 23 together form a groove U. The groove U receives a ring around the object to be measured so as to fix the temperature measurement assembly 100 on the object to be measured. In some embodiments, the grounding flange 23 extends from the protruding portion 22. The structure of the heat conductive body 20 is compact and easy to be installed on the object to be measured.

[0037] The protruding portion 22 may further include a positioning hole 220, which is configured to align with a mounting hole of the object to be measured, so as to allow a fastener for fixing the temperature measurement component 100 to pass through the positioning hole 220 and the mounting hole and fix the temperature measurement component 100 to the object to be measured. In some examples, the fastener for fixing the temperature measurement component 100 may be a bolt, a rivet, or a pin. In this way, the temperature measurement component 100 may be suitable for installation on an object to be measured having a mounting hole, and the protruding portion 22 remains in contact with the surface of the object to be measured during the temperature measurement process to achieve good heat conduction.

[0038] Figure 3a-Figure 3b An example of an object 1A to be measured using the temperature measurement assembly 100 is shown. Figure 3a is a side view of an object 1A to be measured, Figure 3b yes Figure 3a A partial enlarged view of area A in FIG.

[0039] exist Figure 3a and Figure 3b In the embodiment, the object 1A to be measured includes an annulus O surrounding itself. The object 1A to be measured may be a cable. The groove U formed by the tubular portion 21, the protruding portion 22 and the grounding flange 23 may receive the annulus O to fix the temperature measuring assembly 100 on the object 1A to be measured. After the temperature measuring assembly 100 is fixed on the object 1A to be measured, the protruding portion 22 abuts against the surface of the object 1A to be measured, so that the temperature of the object 1A to be measured can be conducted to the temperature measuring element 10 through the protruding portion 22 and the tubular portion 21. When heat is conducted to the temperature measuring element 10, the temperature measuring element 10 generates a measurement signal representing the temperature of the object 1A to be measured. The measurement signal is then transmitted to a processing device of the temperature sensor to determine the temperature of the object 1A to be measured. Information about the temperature of the object 1A to be measured may then be presented to the user, for example, via a display, so that the temperature of the object 1A to be measured can be monitored. Based on the comparison of the temperature of the object 1A to be measured with the threshold value, the user may determine whether the working state of the object 1A to be measured is normal. This allows anomalies in the object being measured to be discovered before safety issues or malfunctions occur.

[0040] Before the measurement starts, an additional grounding terminal 30 providing a grounding function can be connected to the grounding flange 23 to keep the heat-conducting body 20 grounded during the measurement. When the heat-conducting body 20 is grounded, the influence of the potential of the object to be measured on the measurement result can be avoided. The grounding terminal 30 can clamp the flat part of the grounding flange 23 by the clamping part of the grounding terminal 30 to prevent the grounding terminal 30 from being separated from the grounding flange 23. In other examples, the flat part of the grounding flange 23 can be configured to be inserted into the end of the grounding terminal 30. Additionally or alternatively, the size of the temperature measurement component 100 provided according to the present disclosure can be designed to be very small relative to the size of the object 1A to be measured. The temperature measurement component 100 can therefore be flexibly assembled to any position on the object 1A to be measured to achieve the measurement of the desired point to be measured. The temperature measurement component 100 can also be suitable for temperature measurement of objects to be measured with relatively small volumes.

[0041] Figure 4a-4c An example of an object 1B to be measured using the temperature measurement assembly 100 is shown, wherein Figure 4a is a perspective view of an object 1B to be measured as shown in the example, Figure 4b is a plan view of an object 1B to be measured as an example, Figure 4c yes Figure 4b A partial enlarged view of area B in FIG.

[0042] exist Figure 4a-4c In the embodiment, the temperature measuring component 100 is fixed on the object 1B to be measured by aligning the positioning hole 220 with the mounting hole 50 of the object to be measured, and then using the bolt 40 passing through the positioning hole 220 and the mounting hole 50. The object 1B to be measured may be a cable sheath. Similar to the above-mentioned process of measuring the temperature of the object 1A to be measured, the protruding portion 22 abuts against the surface of the object 1B to be measured, so that the temperature of the object 1B to be measured can be conducted to the temperature measuring element 10 through the protruding portion 22 and the tubular portion 21.

[0043] In the case where heat is conducted to the temperature measuring element 10, the temperature measuring element 10 generates a measurement signal representing the temperature of the object 1B to be measured, and then transmits the measurement signal to the processing device of the temperature sensor to determine the temperature of the object 1B to be measured. However, when measuring the temperature of the object 1B to be measured, the grounding flange 23 may not be used, that is, the grounding function is not adopted. In this case, only the insulating heat-conducting material filling the inside of the tubular part 21 can be used to protect the temperature measuring element 10 from the high potential of the object 1B to be measured. In addition, the bolt 40 can also play a role in conducting the heat inside the object 1B to be measured to the heat-conducting body 20 of the temperature measuring assembly 100, so that the temperature measuring element 100 can generate measurement information representing the temperature inside the object 1B to be measured.

[0044] In targeting Figure 3a-Figure 4c In the temperature measurement example of the object to be measured, the temperature measurement component 100 provided according to the present disclosure can obtain a temperature measurement result with a maximum error of less than 2 K in some cases. This is particularly helpful for the user to determine whether the working state of the object to be measured is normal according to the temperature of the object to be measured.

[0045] Based on the temperature measurement component 100 provided by the present disclosure, combined with the above Figure 3a-Figure 4c In the example described, the design of the temperature measurement component 100 of the present disclosure can be applied to realize the temperature measurement of other different objects to be measured. During the process of measuring the temperature of these objects to be measured, the design of the temperature measurement component 100 of the present disclosure can also provide a convenient ground connection (if necessary), and insulation protection by means of the insulating thermal conductive material M, so as to ensure the accuracy of the measurement results. Therefore, these examples are also included in the scope of the present disclosure.

[0046] Figure 5 1 is a schematic block diagram of an electrical system having a temperature sensor and an electrical device including a temperature measurement component provided according to the first aspect of the present disclosure. The electrical system includes a temperature sensor 1000 and an electrical device 300. The electrical device 300 may be, for example, a switch cabinet. In one embodiment, the temperature sensor 1000 is installed at a point of interest inside the electrical device 300 to measure the temperature. Alternatively, the electrical device 300 may be another type of electrical device, and the temperature sensor 1000 may also be installed on a portion of the exterior of the electrical device 300.

[0047] The temperature sensor 1000 includes a processing device 200 and a temperature measurement component 100 for a temperature sensor as described above. The processing device 200 may be configured to be capable of Figure 3a-Figure 4c The temperature of the object to be measured is determined after receiving the measurement signal from the temperature measuring component 10. The processing device 200 may include a signal processing device such as an integrated circuit IC, a microcontroller MCU or other available signal processor. The processing device 200 may also include an analog-to-digital converter ADC for converting the measurement signal from the temperature measuring component 10 into an input signal for the signal processing device. The signal processing device may be configured to output an output signal about the temperature according to the input signal so that it can be provided to the user later.

[0048] The temperature sensor 1000 can realize temperature measurement for the objects 1A and 1B to be measured, including but not limited to the aforementioned objects 1A and 1B to be measured. That is, after performing similar steps of installing the temperature measurement component 100 on the object 1A to be measured or the object 1B to be measured, the temperature sensor 1000 including the temperature measurement component 100 and the processing device 200 can also be applied to the temperature measurement of a general electrical device 300, in particular, to detect the temperature of at least a part of the electrical device. Therefore, the present disclosure also provides an electrical system, which includes the temperature sensor 1000 and the electrical device 300, and the temperature sensor 1000 can be configured to detect the temperature of at least a part of the electrical device 300.

[0049] The temperature sensor and the electrical system also share the benefits described above with respect to the temperature measurement assembly 100 for the temperature sensor, but for the sake of brevity, they are not described again here.

[0050] Although the subject matter has been described in language specific to structural features and / or methodological acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A temperature measurement assembly (100) for a temperature sensor, comprising: A temperature measuring element (10) configured to generate a measurement signal representing the temperature of an object (1A, 1B) to be measured; A heat-conducting body (20) is configured to conduct heat of the object (1A, 1B) to be measured to the temperature measuring element (10), and the heat-conducting body (20) comprises: A tubular portion (21) configured to receive the temperature measuring element (10), a protruding portion (22) extending from the tubular portion (21), the protruding portion (22) being configured to abut against a surface of the object (1A, 1B) to be measured, and A grounding flange (23) located on the protruding portion (22) is configured to be connected to a grounding terminal (30) so as to ground the heat-conducting body (20).

2. The temperature measuring component (100) according to claim 1, wherein the tubular portion (21), the protruding portion (22) and the grounding flange (23) together form a groove (U), and the groove receives a ring (O) surrounding the object (1A) to be measured to fix the temperature measuring component (100) on the object (1A) to be measured.

3. The temperature measurement component (100) according to claim 1 or 2, wherein the grounding flange (23) includes a flat portion, and the flat portion is configured to be clamped by a clamping part of the grounding terminal (30).

4. The temperature measurement component (100) according to claim 1 or 2, wherein the grounding flange (23) extends from the protruding portion (22).

5. The temperature measuring assembly (100) according to claim 1 or 2, wherein the tubular portion (21), the protruding portion (22) and the grounding flange (23) are integrally formed.

6. The temperature measurement component (100) according to claim 1 or 2, further comprising: A transmission line (11) is configured to connect the temperature measuring element (10) and the temperature sensor, the transmission line (11) is partially received by the tubular portion (21), and the temperature measuring element (10) is configured to transmit the measurement signal to the temperature sensor via the transmission line (11).

7. The temperature measuring component (100) according to claim 1 or 2, wherein the interior of the tubular portion (21) is filled with an insulating heat-conductive material (M), and the temperature measuring element (10) is separated from the tubular portion (21) by the insulating heat-conductive material (M).

8. The temperature measuring component (100) according to claim 2, wherein the protruding portion (22) further comprises a positioning hole (220), and the positioning hole (220) is configured to be aligned with the mounting hole (50) of the object (1B) to be measured, so as to fix the temperature measuring component (100) on the object (1B) to be measured.

9. A temperature sensor (1000), comprising: Processing device (200); A temperature measuring assembly (100) for a temperature sensor according to any one of claims 1 to 8.

10. An electrical system comprising: Electrical device (300); as well as The temperature sensor (1000) according to claim 9 is configured to detect the temperature of at least a portion of the electrical device (300).

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