CN115855309A - Moving contact subassembly and cubical switchboard - Google Patents
Moving contact subassembly and cubical switchboard Download PDFInfo
- Publication number
- CN115855309A CN115855309A CN202211473221.1A CN202211473221A CN115855309A CN 115855309 A CN115855309 A CN 115855309A CN 202211473221 A CN202211473221 A CN 202211473221A CN 115855309 A CN115855309 A CN 115855309A
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- bottom shell
- support grid
- circuit board
- movable contact
- moving contact
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- 230000005611 electricity Effects 0.000 claims description 14
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 230000004044 response Effects 0.000 description 7
- 241000722921 Tulipa gesneriana Species 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a moving contact component and a switch cabinet, wherein the moving contact component comprises a moving contact main body and a thin sensor, the moving contact main body comprises an annular first supporting grid sheet, and the thin sensor is arranged at the axial end of the moving contact main body; the thin sensor comprises a bottom shell, a top cover, a temperature measuring component and a circuit board; the bottom shell, the top cover and the circuit board are all annular, the bottom shell and the top cover are connected along the axial direction of the thin sensor, an accommodating cavity is defined between the bottom shell and the top cover, the circuit board is located in the accommodating cavity, and the temperature measuring component is installed on the circuit board; the first support grid sheet and the bottom shell are of an integrated structure, and the temperature measuring component is used for detecting the temperature of the first support grid sheet. This movable contact subassembly forms the integral type structure with sensor and moving contact to improve the temperature measurement accuracy, improve assembly efficiency, installation stability is also better simultaneously.
Description
Technical Field
The invention relates to the technical field of live detection of high-voltage switch cabinets, in particular to a moving contact component and a switch cabinet.
Background
With the rapid growing development of economy in China, the electric power field is ubiquitous, and the effect of the electric power cannot be replaced. The safe operation of switch cabinets in power equipment becomes the focus of attention in the power industry. Especially, the safe operation of the high-voltage switch cabinet, the operation health state of the high-voltage switch cabinet is mainly embodied in the plum blossom contact position. Monitoring the working state of the tulip contact part by using a sensor is one of common means.
The existing sensor usually only detects temperature change, and the health state of equipment operation cannot be accurately reflected only by single data, so that the load condition cannot be judged. In addition, the existing sensor is usually bound on the tulip contact directly in a binding mode, and the tulip contact and the fixed contact are electrically connected in an inserting mode, so that in the process, a contact finger of the tulip contact can rotate to a certain angle towards the radial outer side, in the process of plugging and unplugging for many times, the contact between the sensor and the tulip contact is loosened, and the detection result of the sensor can be influenced due to unstable contact. At present there is also a sensor, it fixes and detects the temperature at the tip of touching the finger, but on the one hand, the tip unevenness of touching the finger, the temperature probe of sensor can not realize good and stable contact with it, in addition, touch the finger and can drive the sensor rotation at the in-process of constantly acting, and cause the not hard up of sensor, influence contact between them, again, overlap joint position easily generates heat between plum blossom contact and the contact arm and breaks down usually, the temperature probe of sensor contacts with one of them contact finger, when breaking down between other contact fingers and the contact arm, the temperature need can just be detected by the sensor after adapting unit transmission, therefore response speed can be relatively slow.
Disclosure of Invention
The invention aims to provide a movable contact component which is characterized in that a sensor and a movable contact form an integrated structure, so that the temperature measurement accuracy is improved, the assembly efficiency is improved, and the installation stability is better.
A second object of the invention is to provide a switchgear cabinet having the above moving contact assembly.
In order to achieve the first object, the invention provides a moving contact assembly, which comprises a moving contact main body and a thin sensor, wherein the moving contact main body comprises an annular first supporting grid sheet, and the thin sensor is arranged at the axial end of the moving contact main body; the thin sensor comprises a bottom shell, a top cover, a temperature measuring component and a circuit board; the bottom shell, the top cover and the circuit board are all annular, the bottom shell and the top cover are connected along the axial direction of the thin sensor, an accommodating cavity is defined between the bottom shell and the top cover, the circuit board is located in the accommodating cavity, and the temperature measuring component is installed on the circuit board; the first support grid sheet and the bottom shell are of an integrated structure, and the temperature measuring component is used for detecting the temperature of the first support grid sheet.
It is seen by above-mentioned scheme that slim sensor and moving contact main part form the structure of integral type, can further improve the stable contact of sensor and moving contact main part, thereby guarantee the degree of accuracy of temperature measurement result, for the connection structure of buckle formula, the structure of integral type can improve assembly efficiency, prevent simultaneously that the buckle from damaging and leading to the slim sensor to drop from the moving contact main part, and, the measurement of temperature measurement part completion to moving contact main part temperature in the inside of slim sensor, consequently, response speed is faster and measurement accuracy is also higher. Meanwhile, the temperature measuring component of the thin sensor is close to a heating point, the response speed is high, the first support grid is connected with each contact finger, and no matter which contact finger is in heating fault with the contact arm, heat can be transferred to the first support grid in time, so that the thin sensor can detect the fault in time, and the response speed of the thin sensor is high.
The moving contact body also comprises a second support grid and a fixing component, wherein the second support grid is annular and is coaxially arranged with the first support grid, and the first support grid and the second support grid are fixedly connected through the fixing component; the fixing component comprises a supporting rod and a fixing piece, the supporting rod is located between the first supporting grid piece and the second supporting grid piece, the fixing piece penetrates through the bottom shell and the first supporting grid piece and is fixed with the supporting rod, the fixing piece is made of a heat conduction material, and the temperature measuring component is arranged close to the fixing piece.
Therefore, the fixing piece realizes the functions of fixing and connecting on one hand and heat conduction on the other hand.
The further scheme is that a positioning groove is formed in the bottom wall of the bottom shell, the head of the fixing piece is located in the positioning groove, heat conducting paste is filled in the positioning groove, and the temperature measuring component is buried in the heat conducting paste in a soaking mode.
Therefore, the head and the temperature measuring part of the fixing piece are both buried in the heat conducting paste in a soaking mode, the stability of heat conduction between the fixing piece and the temperature measuring part can be guaranteed, meanwhile, the temperature measuring part can be in contact with the fixing piece and can also form a gap between the fixing piece and the temperature measuring part, heat conduction is achieved through the heat conducting paste, the requirement on the size is accurate and low, and the production process can be simplified.
One preferred scheme is that the first supporting grid sheet is positioned on one side of the bottom shell far away from the top cover and embedded in the bottom shell; the first support grid pieces and the bottom shell are integrally formed in an injection molding mode, the first support grid pieces are made of metal materials, and the bottom shell is made of plastic materials.
Therefore, the first support grid and the bottom shell are integrally formed through injection molding, the connection stability of the thin sensor and the moving contact main body can be further guaranteed, the production process is simplified, and the assembly efficiency is improved.
According to a preferable scheme, the thin sensor further comprises a CT electricity taking ring, and the CT electricity taking ring is installed in the accommodating cavity and electrically connected with the circuit board.
Therefore, the CT electricity taking ring is used for supplying power to the thin sensor, and passive detection is achieved.
The further scheme is that the bottom shell, the top cover, the CT electricity taking ring and the circuit board are coaxially arranged, and the CT electricity taking ring is arranged on the radial inner side of the circuit board.
Therefore, the CT electricity taking ring is arranged on the radial inner side of the circuit board, and the thickness of the thin sensor can be reduced.
The CT power taking ring comprises a closed magnetic ring and a coil, wherein the coil is wound on the closed magnetic ring, the closed magnetic ring is formed by winding a soft magnetic alloy belt along the circumferential direction of the CT power taking ring, and a multilayer structure arranged along the radial direction of the CT power taking ring is formed.
Therefore, the CT power taking ring and the circuit board are installed in the annular accommodating cavity, meanwhile, the closed magnetic ring is wound along the circumferential direction of the CT power taking ring through the soft magnetic alloy belt to form a multilayer structure arranged along the radial direction of the CT power taking ring, so that the supporting stability of the soft magnetic alloy belt can be guaranteed, and meanwhile, a skeleton structure is not required to be arranged, so that the thickness size of the sensor can be further reduced, and the sensor can be conveniently used on a narrow switch cabinet with a plum blossom contact in the back space.
Preferably, the thin sensor further includes two or more TMR current sensors, and the plurality of TMR current sensors are mounted on the circuit board and arranged at intervals along a circumferential direction of the circuit board.
Therefore, by arranging the TMR current sensor, the current data change monitoring is realized, whether the fault is caused by the temperature rise of the plum blossom contact due to the current overload is judged, the thin sensor has the functions of online real-time temperature measurement and current data acquisition, and the running health condition of equipment can be calculated by background software through the acquisition of the two groups of data, so that the safety accident can be quickly prevented.
A preferable scheme is that the moving contact assembly further comprises a contact arm, a contact finger and a spring ring; the contact fingers extend along the axial direction of the movable contact assembly, the number of the contact fingers is multiple, the first support grid sheet is arranged close to the end parts of the contact fingers, and the contact fingers are arranged along the circumferential direction of the first support grid sheet; the spring ring is sleeved outside the contact finger, the contact finger is forced to be tightly attached to the first support grid sheet by the restoring force of the spring ring, and the contact arm penetrates through the thin sensor and the support grid sheet along the axial direction of the moving contact.
To achieve the second object, the invention provides a switch cabinet, which comprises the movable contact assembly.
Drawings
Figure 1 is a block diagram of an embodiment of the movable contact assembly of the present invention.
Fig. 2 is a block diagram of the embodiment of the moving contact assembly of the present invention after hiding the contact arm.
Fig. 3 is an exploded view of the movable contact body and the thin sensor in the embodiment of the movable contact assembly of the present invention.
Fig. 4 is a sectional view of the movable contact body of the embodiment of the movable contact assembly of the present invention after hiding the contact arm.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Fig. 6 is an exploded view of a thin sensor and a first support grid in an embodiment of the movable contact assembly of the present invention.
Fig. 7 is a schematic structural diagram of a CT power-taking ring in an embodiment of the movable contact assembly of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Moving contact Assembly embodiment
Referring to fig. 1 and 2, the switch cabinet in this embodiment is a high-voltage switch cabinet, and the switch cabinet includes a movable contact assembly 10 and a fixed contact (not shown) that can be plugged and matched to switch on and off a circuit.
The moving contact assembly 10 includes a moving contact body 1 and a thin sensor 2. The movable contact main body 1 includes a contact arm 11, a plurality of contact fingers 12, a first support grid 13, a second support grid 16 (shown in fig. 4), five fixing assemblies 14, and four spring rings 15.
The first support grid 13 and the second support grid 16 are both in a circular ring shape and are arranged coaxially, the first support grid 13 and the second support grid 16 are fixedly connected through a fixing assembly 14, five fixing assemblies 14 are arranged at intervals along the circumferential direction of the first support grid 13, the contact fingers 12 extend along the axial direction of the movable contact assembly 10, the first support grid 13 is arranged close to the first ends of the contact fingers 12, the second support grid 16 is arranged close to the second ends of the contact fingers 12, the contact fingers 12 are arranged on the radial outer sides of the first support grid 13 and along the circumferential direction of the first support grid 13, the spring ring 15 is sleeved outside the contact fingers 12, the restoring force of the spring ring 15 forces the contact fingers 12 to be attached to the first support grid 13 and the second support grid 16, and the contact arm 11 sequentially penetrates through the thin sensor 2 and the first support grid 13 along the axial direction of the movable contact main body 1. The first support grid 13, the second support grid 16 and the fixing component 14 are all made of metal materials.
Referring to fig. 2 to 6, the thin sensor 2 is disposed at an axial end of the movable contact body 1, and the thin sensor 2 includes a housing 20, five temperature measuring components 3, a wireless communication module (not shown), a CT power-taking ring 6, eight TMR current sensors, and an annular circuit board 8. The shell 20, the CT electricity taking ring 6 and the circuit board 8 are all annular and arranged coaxially. The wireless communication module adopts an FPC flexible wireless communication antenna, and the thin sensor 2 has a wireless communication function due to the arrangement of the wireless communication module.
The housing 20 includes a bottom case 21 and a top cover 22, and both the bottom case 21 and the top cover 22 are made of plastic materials such as high-strength engineering resin, and are resistant to high temperature of more than 220 ℃. The bottom shell 21 and the top cover 22 are both annular and fixedly connected in the axial direction of the casing 20 by ultrasonic welding, and an accommodating cavity 23 is defined between the bottom shell 21 and the top cover 22. The CT electricity taking ring 6 and the circuit board 8 are both installed in the accommodating cavity 23, as shown in FIG. 5, the CT electricity taking ring 6 is arranged on the radial inner side of the circuit board 8, and the wireless communication module, the TMR current sensor and the temperature measuring component 3 are all installed on the circuit board 8 and are all electrically connected with the circuit board 8. The temperature measuring part 3 is used for detecting the temperature of the first support grid 13. Preferably, the temperature measuring component 3 is a resistance patch type temperature sensor.
In this embodiment, the fixing assemblies 14 correspond to the thermometric components 3 one by one, and one thermometric component 3 contacts the first fixing element 142 in one fixing assembly 14 to measure the temperature. Five positioning grooves 211 are formed in the bottom wall of the bottom case 21, the head 143 of one first fixing member 142 is located in one positioning groove 211, heat conductive paste (not shown) is filled in each positioning groove 211, the temperature measuring member 3 is immersed in the heat conductive paste and attached to the head 143 of the corresponding first fixing member 142, the head 143 has an attachment plane 145, and the temperature measuring member 3 is attached to the attachment plane 145. The head 143 of the first fixing member 142 and the temperature measuring part 3 are both embedded in the heat conducting paste, so that the stability of heat conduction between the first fixing member and the temperature measuring part 3 can be ensured, meanwhile, the temperature measuring part 3 can be in contact with the first fixing member 142 and also can form a gap between the first fixing member and the temperature measuring part, and heat conduction is realized through the heat conducting paste, so that the requirement on the size is accurate and low, and the production process can be simplified. The bottom wall of each positioning groove 211 is further provided with a sinking groove 213, and the arrangement of the sinking groove 213 not only can realize accurate positioning of the first fixing member 142, but also can further reduce the thickness of the thin sensor 2.
The eight TMR current sensors are uniformly arranged along the circumferential direction of the circuit board 8, the eight TMR current sensors are arranged in a circumferential mode, the circle is concentric with the center hole of the shell 20, and the contact arm 11 penetrates through the center hole of the shell 20 and is coaxial with the center hole, so that the coaxiality of each TMR current sensor and the contact arm 11 is high, and the measured current data accuracy is high. Through setting up TMR current sensor, realize the big or small data change monitoring of electric current, judge whether the fault leads to plum blossom contact temperature rise by electric current overload.
As shown in fig. 6 and 7, the CT power taking ring 6 includes a closed magnetic ring 61 and a coil 62, the coil 62 is wound on the closed magnetic ring 61, the coil 62 is an enameled wire, the closed magnetic ring 61 is formed by winding a soft magnetic alloy tape along the circumferential direction of the CT power taking ring 6, and a multilayer structure is formed in a close arrangement along the radial direction of the CT power taking ring 6. The CT power taking ring 6 and the circuit board 8 are both installed in the annular accommodating cavity 23, the closed magnetic ring 61 is wound along the circumferential direction of the CT power taking ring 6 through the soft magnetic alloy strip to form a multilayer structure arranged along the radial direction of the CT power taking ring 6, so that the supporting stability of the soft magnetic alloy strip can be guaranteed, and meanwhile, a skeleton structure is not required to be arranged, so that the thickness size of the thin sensor 2 can be further reduced, and the thin sensor 2 can be conveniently used on a switch cabinet with a narrow space behind a tulip contact. Meanwhile, the magnetic leakage rate of the closed magnetic ring 61 is extremely low, the electricity taking efficiency is high, so that the product can easily obtain electric energy under an extremely low current environment to work, and the thin sensor 2 does not need external power supply and realizes passive detection.
It is from top to bottom visible, slim sensor and moving contact main part form the structure of integral type, can further improve the stable contact of sensor and moving contact main part, thereby guarantee the degree of accuracy of temperature measurement result, for the connection structure of buckle formula, the structure of integral type can improve assembly efficiency, prevent simultaneously that the buckle from damaging and leading to the slim sensor to drop from the moving contact main part, and, the measurement to moving contact main part temperature is accomplished in the inside of slim sensor to the temperature measurement part, consequently, response speed is faster and measurement accuracy is also higher. Meanwhile, the temperature measuring component of the thin sensor is close to a heating point, the response speed is high, the first support grid is connected with each contact finger, and no matter which contact finger is in heating fault with the contact arm, heat can be transferred to the first support grid in time, so that the thin sensor can detect the fault in time, and the response speed of the thin sensor is high.
In addition, the thin sensor on the moving contact assembly has the functions of online real-time temperature measurement and current data acquisition, and the background software can calculate the running health condition of the equipment by acquiring the two sets of data, so that safety accidents are prevented quickly.
Switch cabinet embodiment
The switch cabinet in this embodiment is a high-voltage switch cabinet, and the switch cabinet includes a movable contact component and a fixed contact that can be plugged and matched to realize the on-off of a circuit, and the movable contact component may adopt the movable contact component in the above-described movable contact component embodiment.
In addition, the type of the temperature measuring components can be changed according to needs, the number of the temperature measuring components can be one or more than two, and when the number of the temperature measuring components is less than that of the fixing components, only part of the fixing components are in contact with the corresponding temperature measuring components. The head of the fixing piece and the temperature measuring component can be jointed, and a small gap can also be formed. Or a heat conducting hole can be formed in the bottom wall of the shell, and the temperature detection is realized in a mode that a temperature measuring probe of the temperature measuring component penetrates through the heat conducting hole and is in contact with the first support grid sheet. The mounting groove can be formed in one side, far away from the top cover, of the bottom shell, and the first supporting grid pieces are mounted in the mounting groove in a bonding mode and the like to form an integrated structure. The bottom shell and the top cover can be fixedly connected through buckles, screws and the like. The number of TMR current sensors and the number of fixing members can also be changed as needed. The above-described modifications also achieve the object of the present invention.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, not limitations, and various changes and modifications may be made by those skilled in the art, without departing from the spirit and scope of the invention, and any changes, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be embraced therein.
Claims (10)
1. The movable contact assembly comprises a movable contact main body and a thin sensor, wherein the movable contact main body comprises an annular first supporting grid sheet, and the thin sensor is arranged at the axial end of the movable contact main body;
the method is characterized in that:
the thin sensor comprises a bottom shell, a top cover, a temperature measuring component and a circuit board;
the bottom shell, the top cover and the circuit board are all annular, the bottom shell and the top cover are connected along the axial direction of the thin sensor, an accommodating cavity is defined between the bottom shell and the top cover, the circuit board is located in the accommodating cavity, and the temperature measuring component is installed on the circuit board;
the first support grid sheet and the bottom shell are of an integrated structure, and the temperature measuring component is used for detecting the temperature of the first support grid sheet.
2. A movable contact assembly as claimed in claim 1, wherein:
the moving contact main body further comprises a second support grid and a fixing component, the second support grid is annular and is coaxially arranged with the first support grid, and the first support grid and the second support grid are fixedly connected through the fixing component;
the fixing component comprises a supporting rod and a fixing piece, the supporting rod is located between the first supporting grid piece and the second supporting grid piece, the fixing piece penetrates through the bottom shell and the first supporting grid piece and is fixed with the supporting rod, the fixing piece is made of a heat conduction material, and the temperature measuring component is close to the fixing piece.
3. A movable contact assembly as claimed in claim 2, wherein:
the bottom wall of the bottom shell is provided with a positioning groove, the head of the fixing piece is located in the positioning groove, heat conducting paste is filled in the positioning groove, and the temperature measuring component is buried in the heat conducting paste in a soaking mode.
4. A movable contact assembly as claimed in any one of claims 1 to 3 wherein:
the first supporting grid sheet is positioned on one side of the bottom shell far away from the top cover and is embedded in the bottom shell;
the first support grid sheet and the bottom shell are integrally formed in an injection molding mode, the first support grid sheet is made of a metal material, and the bottom shell is made of a plastic material.
5. A movable contact assembly as claimed in any one of claims 1 to 3 wherein:
the thin sensor further comprises a CT electricity taking ring, and the CT electricity taking ring is installed in the accommodating cavity and electrically connected with the circuit board.
6. The movable contact assembly of claim 5 wherein:
the bottom shell, the top cap, the CT electricity taking ring and the circuit board are coaxially arranged, and the CT electricity taking ring is arranged on the radial inner side of the circuit board.
7. The movable contact assembly of claim 5 wherein:
the CT power taking ring comprises a closed magnetic ring and a coil, the coil is wound on the closed magnetic ring, the closed magnetic ring is formed by winding a soft magnetic alloy belt along the circumferential direction of the CT power taking ring, and a multilayer structure arranged along the radial direction of the CT power taking ring is formed.
8. A moving contact assembly as claimed in any one of claims 1 to 3 wherein:
the thin sensor further comprises more than two TMR current sensors, and the plurality of TMR current sensors are mounted on the circuit board and are arranged at intervals along the circumferential direction of the circuit board.
9. A movable contact assembly as claimed in any one of claims 1 to 3 wherein:
the moving contact assembly further comprises a contact arm, a contact finger and a spring ring;
the contact fingers extend along the axial direction of the movable contact assembly, the number of the contact fingers is multiple, the first support grid sheet is arranged close to the end parts of the contact fingers, and the contact fingers are arranged along the circumferential direction of the first support grid sheet;
the spring ring is sleeved outside the contact finger, the contact finger is forced to be tightly attached to the first support grid by the restoring force of the spring ring, and the contact arm penetrates through the thin sensor and the support grid along the axial direction of the moving contact.
10. Switchgear, characterized in that it comprises a moving contact assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211473221.1A CN115855309B (en) | 2022-11-21 | 2022-11-21 | Moving contact assembly and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211473221.1A CN115855309B (en) | 2022-11-21 | 2022-11-21 | Moving contact assembly and switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115855309A true CN115855309A (en) | 2023-03-28 |
| CN115855309B CN115855309B (en) | 2023-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211473221.1A Active CN115855309B (en) | 2022-11-21 | 2022-11-21 | Moving contact assembly and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115855309B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015075136A1 (en) * | 2013-11-21 | 2015-05-28 | Novo Nordisk A/S | Rotary sensor assembly with axial switch and redundancy feature |
| CN109444652A (en) * | 2018-11-06 | 2019-03-08 | 珠海多监测科技有限公司 | State aware ring for high-tension switch cabinet contact |
| CN209342264U (en) * | 2019-02-12 | 2019-09-03 | 四川瑞霆电力科技有限公司 | A kind of moving contact passive and wireless temperature transducer based on spring type installation |
| CN214224389U (en) * | 2021-01-14 | 2021-09-17 | 长园共创电力安全技术股份有限公司 | Temperature sensor mounting structure for plum blossom contact and plum blossom contact |
| CN214407820U (en) * | 2021-03-31 | 2021-10-15 | 国网上海市电力公司 | Intelligent temperature measurement static contact device |
| CN215639809U (en) * | 2021-09-03 | 2022-01-25 | 杭州宇诺电子科技有限公司 | Passive wireless temperature measurement structure of power equipment moving contact |
| CN115274337A (en) * | 2022-08-10 | 2022-11-01 | 珠海市集森电器有限公司 | Combined type sensor, switch cabinet online monitoring comprehensive analysis system and method |
| CN217786370U (en) * | 2022-06-22 | 2022-11-11 | 杭州宇诺电子科技有限公司 | Passive wireless temperature measurement sensor of moving contact |
-
2022
- 2022-11-21 CN CN202211473221.1A patent/CN115855309B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015075136A1 (en) * | 2013-11-21 | 2015-05-28 | Novo Nordisk A/S | Rotary sensor assembly with axial switch and redundancy feature |
| CN109444652A (en) * | 2018-11-06 | 2019-03-08 | 珠海多监测科技有限公司 | State aware ring for high-tension switch cabinet contact |
| CN209342264U (en) * | 2019-02-12 | 2019-09-03 | 四川瑞霆电力科技有限公司 | A kind of moving contact passive and wireless temperature transducer based on spring type installation |
| CN214224389U (en) * | 2021-01-14 | 2021-09-17 | 长园共创电力安全技术股份有限公司 | Temperature sensor mounting structure for plum blossom contact and plum blossom contact |
| CN214407820U (en) * | 2021-03-31 | 2021-10-15 | 国网上海市电力公司 | Intelligent temperature measurement static contact device |
| CN215639809U (en) * | 2021-09-03 | 2022-01-25 | 杭州宇诺电子科技有限公司 | Passive wireless temperature measurement structure of power equipment moving contact |
| CN217786370U (en) * | 2022-06-22 | 2022-11-11 | 杭州宇诺电子科技有限公司 | Passive wireless temperature measurement sensor of moving contact |
| CN115274337A (en) * | 2022-08-10 | 2022-11-01 | 珠海市集森电器有限公司 | Combined type sensor, switch cabinet online monitoring comprehensive analysis system and method |
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| Publication number | Publication date |
|---|---|
| CN115855309B (en) | 2023-10-31 |
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