CN115855309B - Moving contact assembly and switch cabinet - Google Patents
Moving contact assembly and switch cabinet Download PDFInfo
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- CN115855309B CN115855309B CN202211473221.1A CN202211473221A CN115855309B CN 115855309 B CN115855309 B CN 115855309B CN 202211473221 A CN202211473221 A CN 202211473221A CN 115855309 B CN115855309 B CN 115855309B
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- circuit board
- contact assembly
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- 230000005611 electricity Effects 0.000 claims description 20
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000463 material Substances 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
- 238000004891 communication Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000722921 Tulipa gesneriana Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a moving contact assembly and a switch cabinet, wherein the moving contact assembly comprises a moving contact main body and a thin sensor, the moving contact main body comprises a first annular 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, a containing cavity is defined between the bottom shell and the top cover, the circuit board is positioned in the containing cavity, and the temperature measuring component is arranged 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. The moving contact assembly forms an integrated structure with the sensor and the moving contact, so that the temperature measurement accuracy is improved, the assembly efficiency is improved, and the installation stability is better.
Description
Technical Field
The invention relates to the technical field of live detection of high-voltage switch cabinets, in particular to a moving contact assembly and a switch cabinet.
Background
With the rapid rising development of the economy in China, the electric power related field is ubiquitous, and the effect of the electric power related field is more irreplaceable. Safe operation of switchgear in electrical equipment is a concern 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 reflected in the plum blossom contact part. Monitoring the working state of the tulip contact part by using a sensor is one of common means.
The existing sensor only detects temperature change generally, and the state of health 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 plum blossom contact by adopting a binding mode, and because the plum blossom contact and the fixed contact are electrically connected in a plugging mode, the contact finger of the plum blossom contact can rotate a certain angle towards the radial outer side in the process, and in the process of repeated plugging, the contact between the sensor and the plum blossom contact can be loosened, and the detection result of the sensor can be influenced by unstable contact. The temperature measuring probe of the sensor can not be well and stably contacted with the sensor, in addition, the contact finger can drive the sensor to rotate in the continuous action process to loosen the sensor so as to influence the contact of the sensor and the contact arm, and once again, the lap joint position between the plum blossom contact and the contact arm is easy to generate heat and malfunction, the temperature measuring probe of the sensor is contacted with one of the contact fingers, and when other contact fingers and the contact arm are in malfunction, the temperature can be detected by the sensor after being transmitted by a connecting component, so that the response speed is slower.
Disclosure of Invention
The first object of the present invention is to provide a moving contact assembly which has an integrated structure of a sensor and a moving contact, thereby improving temperature measurement accuracy, improving assembly efficiency, and simultaneously having better installation stability.
A second object of the present invention is to provide a switchgear having the above-mentioned moving contact assembly.
In order to achieve the first object, the present invention provides a moving contact assembly, including a moving contact body and a thin sensor, wherein the moving contact body includes a first annular supporting grid sheet, and the thin sensor is disposed at an axial end of the moving contact 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, a containing cavity is defined between the bottom shell and the top cover, the circuit board is positioned in the containing cavity, and the temperature measuring component is arranged 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.
According to the scheme, the thin sensor and the moving contact main body form an integrated structure, so that stable contact between the sensor and the moving contact main body can be further improved, the accuracy of a temperature measurement result is guaranteed, the integrated structure can improve the assembly efficiency relative to a buckle type connecting structure, meanwhile, the falling-off of the thin sensor from the moving contact main body caused by damage of a buckle is prevented, and the temperature measurement part completes measurement of the temperature of the moving contact main body in the thin sensor, so that the response speed is higher, and the measurement accuracy is higher. Meanwhile, the temperature measuring part of the thin sensor is close to the heating point, the response speed is high, the first supporting grid sheet is connected with each contact finger, no matter which contact finger and the contact arm are connected, the heat can be timely transferred to the first supporting grid sheet, and therefore the thin sensor can timely detect the fault, and the response speed of the thin sensor is high.
The movable contact main body also comprises a second supporting grid sheet and a fixing component, wherein the second supporting grid sheet is annular and is coaxially arranged with the first supporting grid sheet, and the first supporting grid sheet and the second supporting grid sheet 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 sheet and the second supporting grid sheet, the fixing piece penetrates through the bottom shell and the first supporting grid sheet and is fixed with the supporting rod, the fixing piece is made of a heat conducting material, and the temperature measuring component is arranged close to the fixing piece.
Therefore, the fixing piece realizes the function of fixed connection and simultaneously realizes the function of heat conduction.
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 conduction paste is filled in the positioning groove, and the temperature measuring component is immersed in the heat conduction paste.
Therefore, the head of the fixing piece and the temperature measuring part are immersed in the heat conducting paste, so that the stability of heat conduction between the fixing piece and the temperature measuring part can be ensured, and meanwhile, the temperature measuring part can be contacted with the fixing piece to form a gap between the fixing piece and the temperature measuring part, and the heat conduction is realized through the heat conducting paste, so that the requirement on the size is low, and the production process can be simplified.
In a preferred scheme, the first support 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 injection molded, the first support grid sheet is made of a metal material, and the bottom shell is made of a plastic material.
Therefore, the first supporting grid sheet and the bottom shell are integrally injection molded, so that the connection stability of the thin sensor and the moving contact main body can be further ensured, the production process is simplified, and the assembly efficiency is improved.
In a preferred embodiment, the thin sensor further comprises a CT power taking ring, and the CT power 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 dimension of the thin sensor can be reduced.
The CT electricity taking ring comprises a closed magnetic ring and a coil, the coil is wound on the closed magnetic ring, the closed magnetic ring is wound by a soft magnetic alloy belt along the circumferential direction of the CT electricity taking ring, and a multi-layer structure arranged along the radial direction of the CT electricity taking ring is formed.
Therefore, the CT electricity taking ring and the circuit board are both installed in the annular accommodating cavity, meanwhile, the closed magnetic ring is wound by the soft magnetic alloy belt along the circumference of the CT electricity taking ring to form a multi-layer structure which is radially arranged along the CT electricity taking ring, so that the supporting stability of the soft magnetic alloy belt can be ensured on one hand, meanwhile, a framework structure is not required, the thickness size of the sensor can be further reduced, and the sensor is convenient to use on a switch cabinet with a small space behind a plum blossom contact.
In a preferred embodiment, the thin sensor further includes two or more TMR current sensors, each of which is mounted on the circuit board and arranged at intervals along the circumferential direction of the circuit board.
Therefore, the current sensor is arranged to monitor the change of the current data, and whether the fault is caused by current overload or not is judged, the thin sensor 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 through the acquisition of the two groups of data, so that the occurrence of safety accidents is prevented rapidly.
Preferably, the movable 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 restoring force of the spring ring forces the contact finger to cling to the first supporting grid sheet, and the contact arm penetrates through the thin sensor and the supporting grid sheet along the axial direction of the moving contact.
In order to achieve the second objective, the present invention provides a switch cabinet, which includes the moving contact assembly described above.
Drawings
Fig. 1 is a block diagram of an embodiment of a moving contact assembly of the present invention.
Fig. 2 is a schematic diagram of a hidden contact arm of an embodiment of the moving contact assembly according to the present invention.
Fig. 3 is an exploded view of the moving contact body and the low profile sensor in an embodiment of the moving contact assembly of the present invention.
Fig. 4 is a cross-sectional view of the movable contact assembly according to the embodiment of the present invention after the movable contact body conceals the contact arm.
Fig. 5 is a partial enlarged view at a in fig. 4.
Fig. 6 is an exploded view of the structure of the low profile sensor and the first support grid in an embodiment of the moving contact assembly of the present invention.
Fig. 7 is a schematic structural diagram of a CT power ring in an embodiment of the moving contact assembly of the present invention.
The invention is further described below with reference to the drawings and examples.
Detailed Description
Moving contact assembly embodiment
Referring to fig. 1 and 2, the switch cabinet in the present embodiment is a high-voltage switch cabinet, and the switch cabinet includes a moving contact assembly 10 and a fixed contact (not shown) that can be plugged and matched to realize on-off of a circuit.
The moving contact assembly 10 includes a moving contact body 1 and a thin sensor 2. The moving contact 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 coils 15.
The first support grid 13 and the second support grid 16 are both annular and coaxially arranged, the first support grid 13 and the second support grid 16 are fixedly connected through the fixing assemblies 14, the five fixing assemblies 14 are arranged at intervals along the circumference 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 close to the first ends of the contact fingers 12, the second support grid 16 is close to the second ends of the contact fingers 12, the contact fingers 12 are located on the radial outer side of the first support grid 13 and are arranged along the circumference of the first support grid 13, the spring rings 15 are sleeved outside the contact fingers 12, the restoring force of the spring rings 15 forces the contact fingers 12 to be attached to the first support grid 13 and the second support grid 16, and the contact arms 11 sequentially penetrate through the thin sensor 2 and the first support grid 13 along the axial direction of the movable contact 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 moving contact body 1, and the thin sensor 2 includes a housing 20, five temperature measuring parts 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 coaxially arranged. The wireless communication module adopts an FPC flexible wireless communication antenna, and the setting of the wireless communication module enables the thin sensor 2 to have the function of wireless communication.
The shell 20 comprises a bottom shell 21 and a top cover 22, wherein the bottom shell 21 and the top cover 22 are made of plastic materials such as high-strength engineering resin and the like, and the high temperature resistance reaches more than 220 ℃. The bottom shell 21 and the top cover 22 are annular and fixedly connected in an ultrasonic welding mode along the axial direction of the shell 20, and a containing 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 arranged in the accommodating cavity 23, and 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 part 3 are both arranged on the circuit board 8 and are 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 part 3 is a resistive patch type temperature sensor.
The first supporting grid 13 and the bottom shell 21 are integrally formed into an integral structure in an integral injection molding mode, and the first supporting grid 13 is located on one side, far away from the top cover 22, of the bottom shell 21 and is embedded in the bottom shell 21. The fixing assembly 14 comprises a supporting rod 141, a first fixing piece 142 and a second fixing piece 144, the supporting rod 141 is located between the first supporting grid piece 13 and the second supporting grid piece 16, the supporting rod 141 is of a hollow structure and is provided with internal threads, the first fixing piece 142 and the second fixing piece 144 are in threaded connection with the supporting rod 141, the first fixing piece 142 and the second fixing piece 144 are respectively connected to two ends of the supporting rod 141, the first fixing piece 142 sequentially penetrates through a through hole 212 on the bottom shell 21 and a corresponding through hole 131 on the first supporting grid piece 13 along the axial direction and then is in threaded connection with the supporting rod 141, and the second fixing piece 144 axially penetrates through the second supporting grid piece 16 and then is fixed with the supporting rod 141. The first fixing member 142 is made of a heat conductive material, and preferably, the first fixing member 142 may be a screw made of a metal material.
In this embodiment, the fixing assemblies 14 and the temperature measuring parts 3 are in one-to-one correspondence, and one temperature measuring part 3 contacts with the first fixing piece 142 in one fixing assembly 14 to measure temperature. Five positioning grooves 211 are formed in the bottom wall of the bottom shell 21, the head 143 of one first fixing piece 142 is located in one positioning groove 211, heat conduction paste (not shown) is filled in each positioning groove 211, the temperature measuring component 3 is immersed in the heat conduction paste and is attached to the head 143 of the corresponding first fixing piece 142, the head 143 is provided with an attaching plane 145, and the temperature measuring component 3 is attached to the attaching plane 145. The head 143 of the first fixing piece 142 and the temperature measuring part 3 are both immersed in the heat conduction paste, so that the stability of heat conduction between the first fixing piece and the temperature measuring part 3 can be ensured, and meanwhile, the temperature measuring part 3 can be contacted with the first fixing piece 142 to form a gap between the first fixing piece and the temperature measuring part, and the heat conduction is realized through the heat conduction paste, so that the requirement on the size is 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 sinking groove 213 not only can accurately position 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 co-circle, and the circle is concentric with the central hole of the housing 20, and because the contact arm 11 is arranged through the central hole of the housing 20 and is coaxial with the central hole, the coaxiality of each TMR current sensor and the contact arm 11 is high, and the measured current data precision is high. Through setting up TMR current sensor, realize the change monitoring to current magnitude data, judge whether the trouble is by current overload leading to plum blossom contact temperature rise.
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 wound by a soft magnetic alloy belt along the circumferential direction of the CT power taking ring 6, and a multi-layer structure closely arranged along the radial direction of the CT power taking ring 6 is formed. The CT gets electric ring 6 and circuit board 8 and all installs in annular holding chamber 23, and twines in order to form along CT along the radial multilayer structure who arranges of electric ring 6 by soft magnetic alloy area along CT by closed magnetic ring 61 to get electric ring 6, so on the one hand can guarantee soft magnetic alloy area's supporting stability, need not to set up skeleton structure like this simultaneously to can further reduce thin sensor 2's thickness dimension, be convenient for use this thin sensor 2 on the cubical switchboard that space is narrow and small behind the plum blossom contact. Meanwhile, the magnetic leakage rate of the closed magnetic ring 61 is extremely low, the power-taking efficiency is high, the product can easily acquire electric energy under extremely low current environment to work, and the thin sensor 2 does not need external power supply, so that passive detection is realized.
From the above, the thin sensor and the moving contact main body form an integrated structure, so that the stable contact between the sensor and the moving contact main body can be further improved, the accuracy of a temperature measurement result is guaranteed, the integrated structure can improve the assembly efficiency relative to a buckle type connecting structure, meanwhile, the falling off of the thin sensor from the moving contact main body caused by the damage of a buckle is prevented, and the temperature measurement part completes the measurement of the temperature of the moving contact main body in the thin sensor, so that the response speed is higher, and the measurement accuracy is higher. Meanwhile, the temperature measuring part of the thin sensor is close to the heating point, the response speed is high, the first supporting grid sheet is connected with each contact finger, no matter which contact finger and the contact arm are connected, the heat can be timely transferred to the first supporting grid sheet, and therefore the thin sensor can timely detect the fault, 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 through acquiring the two groups of data, so that the safety accident can be prevented rapidly.
Switch cabinet embodiment
The switch cabinet in the embodiment is a high-voltage switch cabinet, and comprises a moving contact assembly and a fixed contact, wherein the moving contact assembly and the fixed contact can be in plug-in fit to realize circuit on-off, and the moving contact assembly can be the moving contact assembly in the embodiment of the moving contact assembly.
In addition, the types of the temperature measuring components can be changed according to the 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 fixed components, only part of the fixed components are in contact with the corresponding temperature measuring components. The head of the fixing piece can be attached to the temperature measuring part, and a small gap can be formed. The bottom wall of the shell can be provided with a heat conducting hole, and the temperature measuring probe of the temperature measuring component passes through the heat conducting hole and contacts with the first supporting grid sheet to realize temperature detection. The mounting groove can also be formed in one side, far away from the top cover, of the bottom shell, and the first support grid sheet is mounted in the mounting groove in a fixed mode such as bonding, so that an integrated structure is formed. The bottom shell and the top cover can be fixedly connected by a buckle or a screw. The number of TMR current sensors and the number of fixed components may also be changed as desired. The above-described modifications can also achieve the object of the present invention.
Finally, it should be emphasized that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, but rather that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any modifications, equivalent substitutions, improvements, etc. are intended to be included within the scope of the present invention.
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, a containing cavity is defined between the bottom shell and the top cover, the circuit board is positioned in the containing cavity, and the temperature measuring component is arranged on the circuit board;
the first support grid sheet is fixedly connected with the bottom shell and forms an integrated structure, and the temperature measuring component is used for detecting the temperature of the first support grid sheet;
a heat conduction hole is formed in the bottom wall of the bottom shell, and a temperature measuring probe of the temperature measuring component penetrates through the heat conduction hole and is in contact with the first supporting grid sheet; or alternatively
The movable contact main body further comprises a second supporting grid sheet and a fixing component, the second supporting grid is annular and is coaxially arranged with the first supporting grid sheet, the first supporting grid sheet and the second supporting grid sheet are fixedly connected through the fixing component, the fixing component comprises a fixing piece, the fixing piece is made of a heat conducting material, the fixing piece penetrates through the bottom shell and then contacts with the first supporting grid sheet, and the temperature measuring component is close to the fixing piece.
2. The moving contact assembly of claim 1, wherein:
the fixing component comprises a supporting rod, the supporting rod is located between the first supporting grid sheet and the second supporting grid sheet, and the fixing piece penetrates through the bottom shell and the first supporting grid sheet and is fixed with the supporting rod.
3. The moving contact assembly of claim 2, wherein:
the bottom wall of the bottom shell is provided with a positioning groove, the head of the fixing piece is positioned in the positioning groove, the positioning groove is filled with heat conduction paste, and the temperature measuring part is immersed in the heat conduction paste.
4. A moving contact assembly according to any one of claims 1 to 3, wherein:
the first support 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 injection molded, the first support grid sheet is made of a metal material, and the bottom shell is made of a plastic material.
5. A moving contact assembly according to 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 arranged in the accommodating cavity and is electrically connected with the circuit board.
6. The movable contact assembly of claim 5, wherein:
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.
7. The movable contact assembly of claim 5, wherein:
the CT electricity taking ring comprises a closed magnetic ring and a coil, wherein the coil is wound on the closed magnetic ring, and the closed magnetic ring is wound by a soft magnetic alloy belt along the circumferential direction of the CT electricity taking ring, and forms a multi-layer structure arranged along the radial direction of the CT electricity taking ring.
8. A moving contact assembly according to any one of claims 1 to 3, wherein:
the thin sensor further comprises more than two TMR current sensors, and a plurality of TMR current sensors are all installed on a circuit board and are arranged at intervals along the circumferential direction of the circuit board.
9. A moving contact assembly according to any one of claims 1 to 3, wherein:
the movable 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 sheets are 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 sheets;
the spring ring is sleeved outside the contact finger, the restoring force of the spring ring forces the contact finger to cling to the first support grid sheet, and the contact arm penetrates through the thin sensor and the support grid sheet along the axial direction of the moving contact.
10. Switch cabinet, characterized by comprising a moving contact assembly according to any 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 CN115855309A (en) | 2023-03-28 |
| CN115855309B true CN115855309B (en) | 2023-10-31 |
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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 |
|---|---|
| CN115855309A (en) | 2023-03-28 |
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