Cable temperature measuring device

Abstract

The utility model discloses a cable temperature measuring device, which comprises a thermodetector body and at least one temperature measuring belt, the temperature measuring belt comprises a lead, a plurality of first temperature measuring sensors and a plurality of elastic belts, one end of the lead is connected with the thermodetector body, the plurality of first temperature measuring sensors are arranged on the outer side of the lead and electrically connected with the lead, and the elastic belts are electrically connected with the first temperature measuring sensors. The plurality of first temperature measurement sensors are arranged along the length direction of the wire, each elastic belt is provided with a first end and a second end which are opposite to each other, the first end is connected to the wire, the plurality of elastic belts are arranged along the length direction of the wire and correspond to the first temperature measurement sensors, and the elastic belts can be wound on the sides, deviating from the wire, of the corresponding first temperature measurement sensors; when the first temperature measurement sensor is attached to the cable to be detected, the elastic band can be wound on the side, away from the wire, of the cable. According to the cable temperature measuring device, the temperature measuring accuracy can be improved, and when the cable temperature measuring device is not used, the first temperature measuring sensor can be prevented from being exposed and damaged.

Description

Technical Field

[0001] This invention relates to the field of cable temperature measurement technology, and in particular to a cable temperature measurement device. Background Technology

[0002] As a crucial component of power systems, cables directly impact the reliability and safety of power system operation. During operation, cable connections are prone to overheating, necessitating regular temperature monitoring to prevent overheating and subsequent malfunctions. Related technologies utilize cable temperature measurement devices comprising a thermometer body and a temperature-sensing band. The temperature-sensing band includes a conductor and multiple temperature sensors. The conductor is connected to the thermometer body, and the multiple temperature sensors are located on the outside or inside of the conductor, arranged along its length.

[0003] In use, the conductor is placed close to the cable and extended along its length. Multiple temperature sensors can then detect the temperature at multiple locations along the cable's length. The conductor transmits the detection results to the thermometer, which processes and displays the data. Operators can then understand the cable's heating status based on the displayed results. However, during use, it was found that the temperature sensors in existing cable temperature measuring devices are difficult to fit tightly against the cable being measured, affecting measurement accuracy. Furthermore, if the temperature sensor is located inside the conductor, the conductor's isolation further affects measurement accuracy. If the temperature sensor is located outside the conductor, it is easily damaged when not in use due to exposure. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cable temperature measuring device that not only improves the accuracy of temperature measurement, but also reduces the risk of damage to the first temperature sensor when it is not in use.

[0005] A cable temperature measuring device according to an embodiment of the present invention includes a thermometer body and at least one temperature measuring band. The temperature measuring band includes a conductor, a plurality of first temperature sensors, and a plurality of elastic bands. One end of the conductor is connected to the thermometer body. The plurality of first temperature sensors are disposed on the outside of the conductor and electrically connected to the conductor. The plurality of first temperature sensors are arranged along the length direction of the conductor. The elastic bands have opposing first and second ends. The first end is connected to the conductor. The plurality of elastic bands are arranged along the length direction of the conductor and correspond to the first temperature sensors. The elastic bands are configured such that they can wrap around the side of the corresponding first temperature sensor away from the conductor, and the first end can be detachably connected to the second end to cover the conductor and the first temperature sensor together. When the first temperature sensor is attached to the cable to be tested, the elastic bands can wrap around the side of the cable away from the conductor, and the first end can be detachably connected to the second end to cover the conductor, the first temperature sensor, and the cable together.

[0006] The cable temperature measuring device according to the embodiment of this utility model has at least the following beneficial effects:

[0007] When cable temperature measurement is not required, the elastic band is wrapped around the side of the corresponding first temperature sensor away from the conductor, and the first end is connected to the second end. The elastic band can then cover the conductor and the first temperature sensor together, thereby reducing the risk of damage to the first temperature sensor due to exposure. When cable temperature measurement is required, multiple first temperature sensors are attached to the outer wall of the cable to be measured. Because the elastic band can deform elastically, it can be wrapped around the side of the cable away from the conductor, and the first end is connected to the second end. The elastic band can then cover the conductor, the first temperature sensor, and the cable together, allowing the first temperature sensor to be in close contact with the outer wall of the cable. Moreover, since the first temperature sensor is located outside the conductor, the detection of cable temperature is more accurate.

[0008] According to some embodiments of the present invention, the wire is provided with multiple connectors, and the multiple connectors are arranged along the length direction of the wire. The first temperature sensor is plugged into the connectors to realize the electrical connection between the first temperature sensor and the wire.

[0009] According to some embodiments of the present invention, the wire is provided with a plurality of connecting parts, the plurality of connecting parts are arranged along the length direction of the wire, one of the connecting parts and the first temperature sensor is provided with a buckle, and the other is provided with a slot, the buckle and the slot engaging.

[0010] According to some embodiments of the present invention, the surface of the first temperature sensor facing away from the wire forms a bonding surface, which is used to bond to the outer wall of the cable.

[0011] According to some embodiments of the present invention, the bonding surface is configured as an arc surface adapted to the outer side wall of the cable.

[0012] According to some embodiments of the present invention, the wire includes at least two wire units, two adjacent wire units are plugged into each other, and the wire unit is provided with at least one first temperature sensor and at least one elastic band.

[0013] According to some embodiments of the present invention, at least two temperature measuring bands are provided, and at least two temperature measuring bands are located on the same side of the thermometer body.

[0014] According to some embodiments of the present invention, the thermometer body is provided with a second temperature sensor, which is configured as an infrared array sensor.

[0015] According to some embodiments of the present invention, the first end and the second end can be bonded to each other.

[0016] According to some embodiments of this utility model, the first end and the second end can be interlocked.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a schematic diagram of the elastic band in its unfolded state.

[0022] Figure 4 This is a schematic diagram showing the elastic band wrapping the wire and the first temperature sensor together.

[0023] Figure 5 This is a schematic diagram showing the elastic band wrapping around the wire, the first temperature sensor, and the wire.

[0024] Icon labels:

[0025] Thermometer body 100; Second temperature sensor 101; Housing 102; Display screen 103; Wiring port 104

[0026] Temperature measuring band 200; wire 201; first temperature sensor 202; elastic band 203; first end 204; second end 205; connector 206; connecting part 207; buckle 208; slot 209; contact surface 210; wire unit 211;

[0027] Cable 300. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] The following is for reference. Figures 1 to 5 This invention describes a cable temperature measuring device according to an embodiment of the present invention.

[0033] refer to Figures 1 to 5 As shown, the cable temperature measuring device according to an embodiment of the present invention includes a temperature measuring instrument body 100 and at least one temperature measuring band 200.

[0034] The thermometer body 100 may include a housing 102, on which a display screen 103 may be provided. The housing 102 may be provided with multiple wiring ports 104, some of which are used to connect the temperature measuring strip 200, and some of which are used to connect to an external power source.

[0035] The temperature measuring band 200 can be set to one or more, and the temperature measuring band 200 includes a wire 201, multiple first temperature measuring sensors 202 and multiple elastic bands 203.

[0036] One end of the wire 201 is connected to the thermometer body 100 to transmit the temperature data detected by the multiple first temperature sensors 202 to the thermometer body 100.

[0037] Multiple first temperature sensors 202 are electrically connected to the wire 201. These sensors are arranged along the length of the wire 201, with the sensors located on the outer side of the wire 201. Compared to placing the first temperature sensors 202 inside the wire 201, this arrangement provides more accurate detection. When detecting the temperature of the cable 300, the multiple first temperature sensors 202 are arranged sequentially along the length of the cable 300 to obtain the linear temperature of the cable 300. This results in more accurate temperature measurement and richer temperature information, making temperature difference comparison, trend change analysis, and fault diagnosis clearer and more intuitive. It should be noted that the first temperature sensors 202 can be thermocouples, resistance temperature sensors, or other suitable temperature sensors, which will not be elaborated further here.

[0038] Multiple elastic bands 203 can be provided, arranged along the length of the wire 201 and corresponding to the first temperature sensor 202. The elastic bands 203 are strip-shaped structures made of elastic materials such as elastic rubber and elastic plastic. The elastic bands 203 can elastically stretch to cover structures of different sizes. The elastic bands 203 have opposing first ends 204 and second ends 205, with the first end 204 connected to the wire 201.

[0039] The elastic band 203 can be wrapped around the side of the first temperature sensor 202 away from the wire 201, and the first end 204 can be detachably connected to the second end 205 to cover the wire 201 and the first temperature sensor 202 together, thereby protecting the first temperature sensor 202 and preventing it from being exposed and damaged when the cable temperature measuring device is not in use.

[0040] Furthermore, when the first temperature sensor 202 is attached to the cable 300 to be tested, the elastic band 203 can elastically deform and wrap around the side of the cable 300 away from the conductor 201, and the first end 204 can be detachably connected to the second end 205 to cover the conductor 201, the first temperature sensor 202 and the cable 300 together, so that when the temperature of the cable 300 is measured, the first temperature sensor 202 can be tightly attached to the outer wall of the cable 300, thereby making the temperature detection more accurate.

[0041] In this embodiment, when it is not necessary to measure the temperature of the cable 300, the elastic band 203 is wrapped around the side of the corresponding first temperature sensor 202 away from the wire 201, and the first end 204 is connected to the second end 205. The elastic band 203 can cover the wire 201 and the first temperature sensor 202 together, thereby reducing the first temperature sensor 202 from being exposed and damaged. When it is necessary to measure the temperature of cable 300, multiple first temperature sensors 202 are attached to the outer wall of the cable 300 to be measured. Since the elastic band 203 can deform elastically, it can be wrapped around the side of cable 300 away from conductor 201, and the first end 204 is connected to the second end 205. The elastic band 203 can cover conductor 201, first temperature sensors 202 and cable 300 together, so that the first temperature sensors 202 are in close contact with the outer wall of cable 300. Moreover, the first temperature sensors 202 are located outside conductor 201, so the temperature detection of cable 300 can be more accurate.

[0042] It is understood that a control circuit may be installed inside the housing 102. This control circuit may include an input protection unit, a voltage conversion unit, a main control unit, and a data acquisition unit. The input protection unit protects the thermometer body 100 from damage caused by excessive input voltage or current from the external power supply. It also prevents short circuits and suppresses common-mode interference, differential-mode interference, and electrostatic interference. The voltage conversion unit may include multi-stage filtering circuits and multi-stage step-down circuits, which can step down, stabilize, and filter the input temperature signal, reducing output ripple and noise, and ensuring a smooth and stable voltage output to the downstream circuitry. The data acquisition unit collects temperature data detected by the first temperature sensor 202 and the second temperature sensor 101. The main control unit controls the operation of each unit and, after acquiring the temperature data, calculates the highest, lowest, and average temperature values. The calculated temperature data is then integrated and sent to the display screen 103 for display or to a host computer. It should be noted that the thermometer body 100 is a common device, and its structure and working principle will not be described in detail here.

[0043] refer to Figure 1 and Figure 2As shown, in some embodiments of this utility model, the wire 201 is provided with multiple connectors 206, which are arranged along the length of the wire 201. The first temperature sensor 202 is plugged into the connectors 206 to achieve electrical connection between the first temperature sensor 202 and the wire 201. For example, the connectors 206 can be electrically connected to the wire 201, and the first temperature sensor 202 achieves electrical connection with the wire 201 by plugging into the connectors 206. In this embodiment, it is more convenient to install and remove the first temperature sensor 202, and when it is necessary to replace or repair the first temperature sensor 202, the operation is more convenient, time-saving, and labor-saving.

[0044] refer to Figure 3 As shown, in some embodiments of this utility model, the wire 201 is provided with multiple connecting portions 207, which are arranged along the length of the wire 201. One of the connecting portions 207 and the first temperature sensor 202 is provided with a buckle 208, and the other is provided with a slot 209. The buckle 208 and the slot 209 are engaged. For example, the end face of the connecting portion 207 near the first temperature sensor 202 may be provided with a buckle 208, and the end face of the first temperature sensor 202 near the connecting portion 207 may be provided with a slot 209. The buckle 208 is engaged in the slot 209. In this way, in addition to being plugged into the connector 206, the first temperature sensor 202 is also fixed by the engagement of the buckle 208 and the slot 209, thereby making the installation of the first temperature sensor 202 more stable and the electrical connection between the first temperature sensor 202 and the wire 201 more stable, avoiding poor contact and thus making the transmission of temperature signals more stable.

[0045] refer to Figure 3 As shown, in some embodiments of this utility model, the surface of the first temperature sensor 202 facing away from the wire 201 forms a bonding surface 210, which is used to bond to the outer wall of the cable 300. Bonding the surface of the first temperature sensor 202 facing away from the wire 201 to the outer wall of the cable 300 reduces interference, facilitates bonding, and thus improves temperature detection performance.

[0046] refer to Figure 3 As shown, in some embodiments of this utility model, the bonding surface 210 is configured as an arc surface adapted to the outer wall of the cable 300. For example, the radius of the bonding surface 210 can be close to the radius of the outer wall of the cable 300, so that the first temperature sensor 202 and the outer wall of the cable 300 have a better bonding effect and a tighter fit, thereby making the temperature detection of the cable 300 more accurate.

[0047] refer to Figure 1As shown, in some embodiments of this utility model, the conductor 201 includes at least two conductor units 211, with adjacent conductor units 211 interlocked. Each conductor unit 211 is provided with at least one first temperature sensor 202 and at least one elastic band 203. In this embodiment, the conductor 201 is formed by splicing at least two conductor units 211. This allows for the increase or decrease of the number of conductor units 211 according to actual needs, thereby increasing or decreasing the length of the conductor 201. This makes the conductor 201 compatible with the length of the area of ​​the cable 300 requiring temperature detection, making detection more convenient.

[0048] refer to Figure 1 As shown, in some embodiments of this utility model, at least two temperature measuring bands 200 are provided, and the at least two temperature measuring bands 200 are located on the same side of the thermometer body 100. The presence of at least two temperature measuring bands 200 allows for simultaneous detection of at least two cables 300, resulting in higher detection efficiency. Furthermore, the fact that at least two temperature measuring bands 200 are located on the same side of the thermometer body 100 makes it easier to arrange the temperature measuring bands 200 during cable 300 detection, reducing the likelihood of tangling and twisting, and thus minimizing damage to the temperature measuring bands 200.

[0049] refer to Figure 1 As shown, in some embodiments of this utility model, the thermometer body 100 is provided with a second temperature sensor 101, which is configured as an infrared array sensor. The infrared array sensor can measure the temperature of the entire area near the cable 300, converting the traditional single-point temperature measurement into area temperature measurement. Combined with the linear temperature measurement of the temperature measuring band 200, the measured temperature information is richer, and the temperature difference comparison, trend change analysis, and fault point diagnosis are clearer and more intuitive, resulting in better practicality.

[0050] In some embodiments of this utility model, the first end 204 and the second end 205 can be bonded to each other. For example, both the first end 204 and the second end 205 can be provided with adhesive surfaces and bonded together through these surfaces. In this embodiment, the first end 204 and the second end 205 can be bonded to each other, resulting in a relatively stable connection and easy separation.

[0051] In some embodiments of this utility model, the first end 204 and the second end 205 can be interlocked. For example, both the first end 204 and the second end 205 can be provided with interlocking parts and interlocked through the interlocking parts. In this embodiment, the first end 204 and the second end 205 can be interlocked, the connection is relatively stable, and it is easy to separate.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A cable temperature measuring device, characterized in that, include: Thermometer body; At least one temperature measuring band, said temperature measuring band comprising: A wire, one end of which is connected to the thermometer body; Multiple first temperature sensors are disposed on the outside of the conductor and electrically connected to the conductor, and the multiple first temperature sensors are arranged along the length direction of the conductor; Multiple elastic bands, each elastic band having a first end and a second end opposite to each other, the first end being connected to the wire, the multiple elastic bands being arranged along the length of the wire and corresponding to the first temperature sensor; The elastic band is configured such that it can be wrapped around the side of the first temperature sensor opposite to the conductor, and the first end can be detachably connected to the second end to cover the conductor and the first temperature sensor together; when the first temperature sensor is attached to the cable to be tested, the elastic band can be wrapped around the side of the cable opposite to the conductor, and the first end can be detachably connected to the second end to cover the conductor, the first temperature sensor and the cable together.

2. The cable temperature measuring device according to claim 1, characterized in that, The wire is provided with multiple connectors, which are arranged along the length of the wire. The first temperature sensor is plugged into each of the connectors to achieve electrical connection between the first temperature sensor and the wire.

3. The cable temperature measuring device according to claim 2, characterized in that, The wire is provided with multiple connecting parts, which are arranged along the length of the wire. One of the connecting parts is provided with a buckle and the other with a slot, and the buckle engages with the slot.

4. The cable temperature measuring device according to claim 1, characterized in that, The surface of the first temperature sensor facing away from the conductor forms a bonding surface, which is used to bond to the outer wall of the cable.

5. The cable temperature measuring device according to claim 4, characterized in that, The bonding surface is configured as an arc surface that adapts to the outer wall of the cable.

6. The cable temperature measuring device according to claim 1, characterized in that, The conductor includes at least two conductor units, with two adjacent conductor units being plugged into each other. Each conductor unit is provided with at least one of the first temperature sensors and at least one of the elastic bands.

7. The cable temperature measuring device according to claim 1, characterized in that, The temperature measuring band is provided in at least two parts, and the at least two temperature measuring bands are located on the same side of the temperature measuring instrument body.

8. The cable temperature measuring device according to claim 1, characterized in that, The thermometer body is equipped with a second temperature sensor, which is set as an infrared array sensor.

9. The cable temperature measuring device according to claim 1, characterized in that, The first end and the second end can be bonded to each other.

10. The cable temperature measuring device according to claim 1, characterized in that, The first end and the second end can be interlocked.

Images