CN117537949A - Temperature measurement sensing device and cable joint mounting structure - Google Patents
Temperature measurement sensing device and cable joint mounting structure Download PDFInfo
- Publication number
- CN117537949A CN117537949A CN202311605639.8A CN202311605639A CN117537949A CN 117537949 A CN117537949 A CN 117537949A CN 202311605639 A CN202311605639 A CN 202311605639A CN 117537949 A CN117537949 A CN 117537949A
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- temperature measurement
- sensing device
- nut
- tag
- temperature
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 claims description 35
- 229910052751 metal Inorganic materials 0.000 claims description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- 230000010287 polarization Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims 10
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 8
- 101100480513 Caenorhabditis elegans tag-52 gene Proteins 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 238000005065 mining Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to the technical field of high-voltage cable temperature measurement, and discloses a temperature measurement sensing device and a cable connector mounting structure. The temperature measuring sensing device disclosed by the invention can solve the problem of wireless temperature monitoring inside the cable plug of the ring main unit.
Description
Technical Field
The invention relates to the technical field of high-voltage cable temperature measurement, in particular to a temperature measurement sensing device and a cable joint mounting structure.
Background
The ring main unit is special electrical connection equipment which is widely used in alternating current 10KV power distribution systems of industrial and mining enterprises, residential communities, ports, high-rise buildings and the like, completes the functions of collecting and grading cable lines and has control measurement and the like. The plug is a main component for connecting high-voltage cables in the high-voltage ring network cabinet and plays roles of connection, insulation, shielding, protection and the like. In practical application, contact resistance exists at the cable connection position, heat is easy to accumulate, and accidents such as explosion or fire disaster are caused by overhigh temperature. It is therefore necessary to monitor the temperature inside the plug.
The current common methods for temperature measurement in high voltage environment are as follows:
1. wax sheet temperature measurement technology:
has the advantages of simplicity and low cost. The defects are low accuracy and poor reliability, and real-time monitoring cannot be realized. Moreover, the invisible parts of the ring main unit, such as T-shaped cable joints, which are easy to generate heat and run, cannot be measured.
2. Thermal infrared temperature measurement technology:
the method has the advantages of large measurement range, higher accuracy and better reliability. The defects are that the equipment is expensive, manual periodic inspection is needed, and the real-time monitoring of the temperature cannot be realized. And for the hidden position of the cable joint, the infrared thermometer cannot measure the temperature. In addition, the infrared thermometer is greatly disturbed by sunlight and is generally required to be measured at night or in overcast and rainy days.
3. The fiber bragg grating temperature measurement technology comprises the following steps:
the grating sheet is used as a temperature sensor and is stuck on the surface of a measured point, and a temperature detector (spectrum analyzer) is connected with the temperature sensor through an optical fiber. The defects are that the optical fiber is easy to break and not resistant to high temperature, the insulation performance of the optical fiber is reduced in a wet environment after dust is accumulated, the surface of the optical fiber is discharged, potential safety hazards exist, the installation and debugging workload is large, and the manufacturing cost is high.
With the development of RFID technology and the appearance of a temperature measuring chip, the combination of the RFID technology and the temperature measuring chip can realize the passive wireless monitoring of the temperature at the cable joint and can also avoid secondary accidents. However, because the cable plug is internally provided with a metal part, the electromagnetic environment is poor, the traditional temperature measuring device generally uses the surface of a black rubber protective sleeve outside the cable plug, the temperature inside the plug cannot be actually measured, the temperature data has obvious deviation, and the practical significance is very low.
Disclosure of Invention
Aiming at the problems of inaccurate measurement, large influence by environmental factors and the like when the temperature of the plug is monitored in a high-pressure environment in the prior art, the invention designs a temperature measurement sensing device and a cable joint mounting structure comprising the temperature measurement sensing device, and aims to solve the problem of wireless temperature monitoring inside the cable plug of a ring main unit.
The technical scheme adopted by the device is as follows: the utility model provides a temperature measurement sensing device, includes a nut, temperature measurement label and shell cover, the nut has constituted temperature measurement sensing device's main part, has seted up flutedly on the nut side, is equipped with a pair of mounting hole in recess plane both sides, temperature measurement label is placed in the recess, and temperature measurement label's width is less than the distance between two pairs of mounting holes about for the mounting hole exposes the recess outside is equipped with the shell cover, shell cover both sides are connected with the erection column, the shell cover is through inserting the erection column in the corresponding mounting hole, thereby the cover is established on the recess.
Preferably, the temperature measuring tag consists of a chip, a radiation antenna and a medium, wherein the chip refers to a passive ultrahigh frequency RFID chip with a temperature measuring function, the radiation antenna refers to an electromagnetic wave energy receiving and reflecting device which is connected to a matched corresponding chip between two ends of a chip RF+, RF- (GND), and the medium comprises ceramics, a PCB and a high frequency board.
Preferably, one or more grooves are formed in the side face of the nut, a temperature measuring label is fixed on each groove, and a shell cover is covered outside each groove.
Preferably, the thickness of the nut is 7mm-10mm, the grooving width of the nut is 5.5mm-7mm, the width of the temperature measuring label is 4mm-6mm, and the distance between a chip in the temperature measuring label and the side wall of the groove, which is close to one side, is 0mm-1mm.
Preferably, the included angle between the main polarization direction of the temperature measuring label and the normal direction of the nut is not more than 30 degrees, and the temperature measuring label is an anti-metal label with a size which is greater than or equal to 4mm along the normal direction of the nut.
Preferably, the temperature measurement tag is a ceramic tag with a length of width=5 mm×5mm and a dielectric constant of 140-180 or a ceramic tag with a length of width=10 mm×5mm and a dielectric constant of more than 50.
The application still includes a cable joint mounting structure, including above-mentioned open temperature measurement sensing device, screw rod, end cap, metal cup, copper nose, the metal cup embedding is inside the end cap, in the metal cup was inserted to screw rod one end, the other end extends to the end cap outside the copper nose has been hung on the screw rod one end of keeping away from the end cap the cover is equipped with temperature measurement sensing device, spring gasket, ordinary gasket, location liner and a plurality of other liner on the screw rod.
Preferably, the spring gasket is a ring body which is not closed, the common gasket is of a closed annular structure, and the positioning gasket and other gaskets are sheets with the thickness of a hollow belt.
Preferably, the positioning liner is used for controlling the distance between the cup opening of the metal cup body and the surface of the copper nose; the number of other gaskets is 1-4, and the installation positions can be freely set in the screw space between the metal cup body and the copper nose; the positioning gasket and other gaskets can be used singly or in any combination, and are used for creating an insulation gap between the metal cup body edge and the copper nose surface.
Preferably, the function of any other gasket can be equivalently replaced by increasing the thickness of the common gasket or the spring gasket, and the function of the positioning gasket can be equivalently replaced by increasing the outer diameter of the common gasket or the spring gasket.
Compared with the prior art, the device has the following beneficial effects: the utility model provides an utilize RFID radio frequency identification technique, combine temperature measurement chip, and the inner structure and the electromagnetic environment of looped netowrk cabinet cable head, provide one kind and arrange in the inside UHF frequency channel's of end cap cup space temperature measurement RFID sensing device, this sensing device has thickness little, and the signal is strong and do not arouse the characteristics of partial discharge hidden danger, simultaneously, provide a cable joint mounting structure who contains this sensing device to the inside temperature wireless monitoring's of looped netowrk cabinet cable end cap problem has been better solved. The placement direction of the temperature measuring sensing device in the plug can be arbitrarily selected, the influence on the sensitivity of the temperature measuring sensing device is small, and after the temperature measuring sensing device is installed, the sensitivity margin of the temperature measuring sensing device exceeds 10dBm. Overall, the product is easy to install, convenient to debug, simple in structure, has no influence on the original installation structure of the ring main unit plug, and can realize batch processing factories and application.
Drawings
FIG. 1 is a block diagram of a temperature sensing device (single slot structure).
Fig. 2 is a mounting structure diagram of the temperature measuring sensor device of fig. 1 mounted on the ring main unit plug.
Fig. 3 is another representation of fig. 2.
1, a plug; 2. a metal cup; 3. a screw; 4. copper nose; 5. a temperature measuring sensor; 51. a nut; 52. a temperature measurement label; 53. a housing cover; 54. a mounting column; 6. a spring washer; 7. a common gasket; 8. positioning the gasket; 9. other gaskets.
Detailed Description
Embodiments of the present application will be described in detail below. Throughout the specification, identical or similar components and components having identical or similar functions are denoted by similar reference numerals. The embodiments described herein with respect to the drawings are of illustrative nature, of diagrammatic nature and are used to provide a basic understanding of the present application. The examples of the present application should not be construed as limiting the present application. In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The application relates to a temperature measurement RFID sensing device of UHF frequency band of arranging inside 1 cup space of end cap, as shown in fig. 1, the device main part is a nut 51, has offered one to a plurality of recesses on the lateral wall of nut 51, has all placed temperature measurement label 52 in every recess, and temperature measurement label 52 comprises chip, radiation antenna, medium, and wherein the chip is the passive ultrahigh frequency RFID chip that has temperature measurement function. The radiating antenna refers to an electromagnetic wave energy receiving and reflecting device connected to a corresponding chip of the matching type between the chip rf+, RF- (GND), and the medium generally refers to ceramics, PCB, high frequency board, etc. The RFID temperature measuring tag combines Radio Frequency Identification (RFID) technology and a temperature sensor, can monitor and record the temperature of an object in real time, and particularly, the temperature sensor can sense the temperature of the object in real time and transmit data to an RFID chip. Through wireless communication, the RFID chip transmits temperature data to the reader, and the reader uploads the data to the central server for storage and analysis. Punching is carried out at two ends of each groove, each groove is provided with a shell cover 53 with a mounting column 54, and the mounting columns 54 are inserted into hole sites at two ends of the groove, so that the shell covers 53 are covered on the grooves, and the sealing and fixing effects on the temperature measuring label 52 are completed. In this embodiment, the thickness of the nut 51 as the main body of the temperature measuring sensor 5 is 7-8mm, the width of the groove formed in the nut 51 is 5.5-7mm, the width of the built-in temperature measuring tag 52 is 4-6mm, and the distance between the built-in temperature measuring tag 52 and the surface of the groove wall of the nut 51, which is close to the surface, is 0-1mm.
Specifically, the number of grooves formed in the side wall of the nut 51 can be freely adjusted according to actual needs, and each groove is provided with the same temperature measuring label 52 and is closed by the housing cover 53. Fig. 1 shows a nut structure with a single-sided slot, in general, the more slots are formed, which means that the more temperature measuring labels 52 are installed, the temperature measuring performance of the temperature measuring device is improved to some extent, but the increase of the number of the slots will result in the increase of the cost, and the strength of the nut 51 will be reduced, so that in practical use, it is preferable to form a single-sided slot or a double-sided slot on the side wall of the nut 51. In the present embodiment, the temperature measurement tag 52 used is a temperature measurement tag with a length of width=5 mm×5mm and a dielectric constant of 140-180, or a temperature measurement tag with a length of width=10 mm×5mm and a dielectric constant of more than 50, or other sensing tags with a size of 4mm or more along the normal direction of the nut 51.
The application also relates to a cable joint installation structure using the temperature measuring sensing device 5, which is composed of a plug 1, a metal cup body 2, a screw 3, a copper nose 4, a nut sensing device 5, a spring gasket 6, a common gasket 7, a positioning gasket 8 and a plurality of other gaskets 9 as shown in fig. 2-3. The core of the installation structure is that the nut sensing device is installed in the plug 1 of the ring main unit, firstly, one end of the screw rod 3 is hung with the copper nose 4 to fix the nut sensing device and the plug, the common gasket 7, the spring gasket 6, the temperature measuring sensing device 5 and the plug 1 are sequentially installed from the other end of the screw rod 3, and then a certain number of gaskets are installed according to actual needs. The common gasket 7 and the spring gasket 6 belong to a fixing structure required by installing and fixing the temperature measuring device, other gaskets are insulating materials with a certain thickness and supporting functions for the through holes, the insulating materials are mainly used for creating insulating gaps between the cup edges of the metal cup body 2 and the surface of the copper nose 4, the number and the installation positions of the gaskets can be set according to actual needs, and the thicknesses of the common gasket 7 and the spring gasket 6 can be increased to achieve the same function as those of the additionally arranged gaskets. It should be noted that, these gaskets include a positioning gasket 8, which is disposed at the mouth of the metal cup 2, for controlling the distance between the mouth of the metal cup 2 and the surface of the copper nose 4, and the function of the positioning gasket 8 can be equivalently replaced by increasing the diameters of the common gasket 7 and the spring gasket 6.
The metal cup body 2 in the ring main unit has an antenna effect, the antenna effect has obvious linear polarization characteristics, the antenna effect has the most effective receiving effect on the electromagnetic wave with the polarization direction parallel to the normal direction of the metal cup body 2, and the electromagnetic wave perpendicular to the polarization direction has very weak receiving effect. In addition, when a certain insulation gap is maintained between the cup edge portion of the metal cup 2 and the surface of the copper nose 4, the antenna effect of the metal cup 2 is remarkable, and when the cup edge portion of the metal cup 2 is in contact with the surface of the copper nose 4, the antenna effect of the metal cup 2 is weak. The invention utilizes the coupling effect of the metal cup body 2 on electromagnetic waves in a specific polarization direction, and sets the main polarization direction of the built-in temperature measuring tag 52 to be parallel to the normal direction of the nut 51 (the deviation angle is controlled within 30 degrees in practical application), so that the temperature measuring tag 52 can guide electromagnetic wave energy received by the metal cup body 2 onto the temperature measuring tag 52 through the coupling with the metal cup body 2 (the normal direction of the nut 51 is the normal direction of the metal cup body 2 because the nut 51 is parallel to the placement direction of the metal cup body 2), and further the signal transmission mode is as follows: collector antenna→obstacle (metal cup 2) →sensor, becoming collector antenna→directional coupler (metal cup 2) →sensor. The original signal transmission is shielded by the obstacle, so that the signal transmitted to the sensor is weak, the measurement result is affected, and the signal intensity transmitted to the temperature measuring tag 52 can be remarkably improved after the temperature measuring device is used.
On the other hand, the existing nut type sensor on the market generally has the problem that the thickness is large, the actual thickness is generally more than 12mm, a remarkable gap is generated between the plug 1 embedded piece cup body and the copper nose 4 through the increased thickness, and electromagnetic waves enter and exit the cup body space through the gap, so that the purpose that the sensor can communicate with a receiving device is achieved. However, the increased thickness of the nut changes the original mounting structure of the insulating plug 1, which may cause the protrusion length of the screw 3 at the nut end to be too small, so that the plug 1 is difficult to screw down or the gap between the metal cup 2 and the copper nose 4 is too large after the plug 1 is screwed down. The temperature measuring sensing device 5 is provided with the grooves on the side face of one nut 51, the integrity of the upper fastening face and the lower fastening face of the nut 51 is not affected by the groove structure, one ceramic temperature measuring label 52 can be normally contained in the groove, the structural design obviously reduces the gap width requirement of the surfaces of the metal cup body 2 and the copper nose 4, and therefore the thickness of the nut 51 can be reduced to be within 8mm, and the partial discharge risk caused by overlarge gaps is avoided.
In general, the invention solves the problem of wireless temperature monitoring in the cable plug 1 of the ring main unit by combining with the RFID technology, the temperature measuring sensing device 5 can be arranged in any direction in the plug 1, the influence on the sensitivity is small, and the sensitivity margin of the sensor exceeds 10dBm after the whole installation is finished. Overall, the product is easy to install, convenient to debug, simple in structure, has no influence on the original installation structure of the ring main unit plug 1, and can realize batch processing factories and application.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
The technical content and technical features of the present application have been disclosed above, however, those skilled in the art may make various substitutions and modifications based on the teachings and disclosure of the present application without departing from the spirit of the present application. Accordingly, the scope of protection of the present application should not be limited to what is disclosed in the embodiments, but should include various alternatives and modifications without departing from the application, and is covered by the claims of the present application.
Claims (10)
1. The utility model provides a temperature measurement sensing device, its characterized in that, includes a nut, temperature measurement label and shell cover, the nut has constituted temperature measurement sensing device's main part, sets up flutedly on the nut side, is equipped with a pair of mounting hole in recess plane both sides, temperature measurement label is placed in the recess, and temperature measurement label's width is less than the distance between two pairs of mounting holes about for the mounting hole exposes the recess outside is equipped with the shell cover, shell cover both sides are connected with the erection column, the shell cover is through inserting the erection column in the corresponding mounting hole, thereby the cover is established on the recess.
2. The thermometric sensing device according to claim 1, wherein the thermometric tag is composed of a chip, a radiation antenna, a medium, the chip refers to a passive ultra-high frequency RFID chip with thermometric function, the radiation antenna refers to an electromagnetic wave energy receiving and reflecting device connected to a matable corresponding chip between both ends of the chip rf+, RF- (GND), the medium includes ceramics, PCB, high frequency board.
3. The temperature measurement sensing device of claim 1, wherein the nut side is provided with one or more grooves, each groove is fixed with a temperature measurement tag, and a housing cover is covered outside each groove.
4. The temperature measurement sensing device according to claim 2, wherein the thickness of the nut is 7mm-10mm, the grooving width of the nut is 5.5mm-7mm, the width of the temperature measurement tag is 4mm-6mm, and the distance between the chip in the temperature measurement tag and the side wall of the groove close to one side is 0mm-1mm.
5. The temperature measurement sensing device according to claim 2, wherein an included angle between a main polarization direction of the temperature measurement tag and a normal direction of the nut is not more than 30 degrees, and the temperature measurement tag is an anti-metal tag with a size of 4mm or more along the normal direction of the nut.
6. The temperature sensing device of claim 5, wherein the temperature sensing tag is a ceramic tag having a length-width=5 mm-5 mm, a dielectric constant between 140 and 180, or a ceramic tag having a length-width=10 mm-5 mm, a dielectric constant greater than 50.
7. The cable joint mounting structure is characterized by comprising the temperature measuring sensing device, a screw rod, a plug, a metal cup body and a copper nose, wherein the metal cup body is embedded in the plug, one end of the screw rod is inserted into the metal cup body, the other end of the screw rod extends to the outside of the plug, the copper nose is hung at one end of the screw rod far away from the plug, and the screw rod is sleeved with the temperature measuring sensing device, a spring gasket, a common gasket, a positioning gasket and a plurality of other gaskets.
8. The cable fitting mounting structure of claim 7 wherein said spring spacer is a ring of unsealed rings, said common spacer is a closed ring structure, and said positioning spacer and other spacers are hollow sheets of tape thickness.
9. The cable fitting mounting structure of claim 7, wherein said positioning pad is used to control the distance between the metal cup opening and the copper nose surface; the number of other gaskets is 1-4, and the installation positions can be freely set in the screw space between the metal cup body and the copper nose; the positioning gasket and other gaskets can be used singly or in any combination, and are used for creating an insulation gap between the metal cup body edge and the copper nose surface.
10. The cable joint mounting structure according to claim 9, wherein the function of any other spacer can be equivalently replaced by increasing the thickness of the normal spacer or the spring spacer, and the function of the positioning spacer can be equivalently replaced by increasing the outer diameter of the normal spacer or the spring spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311605639.8A CN117537949A (en) | 2023-11-29 | 2023-11-29 | Temperature measurement sensing device and cable joint mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311605639.8A CN117537949A (en) | 2023-11-29 | 2023-11-29 | Temperature measurement sensing device and cable joint mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117537949A true CN117537949A (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311605639.8A Pending CN117537949A (en) | 2023-11-29 | 2023-11-29 | Temperature measurement sensing device and cable joint mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117537949A (en) |
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2023
- 2023-11-29 CN CN202311605639.8A patent/CN117537949A/en active Pending
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