CN115014555A - Looped netowrk cabinet contact temperature measuring device - Google Patents
Looped netowrk cabinet contact temperature measuring device Download PDFInfo
- Publication number
- CN115014555A CN115014555A CN202210742330.2A CN202210742330A CN115014555A CN 115014555 A CN115014555 A CN 115014555A CN 202210742330 A CN202210742330 A CN 202210742330A CN 115014555 A CN115014555 A CN 115014555A
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- contact
- ring
- measuring device
- temperature measuring
- snap ring
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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
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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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
- G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a temperature measuring device for a contact of a ring main unit, which comprises a first snap ring, a second snap ring and a heat conducting wire wound outside a cylindrical contact, wherein the first snap ring and the second snap ring are connected through a telescopic rod group, an air cavity is arranged in the telescopic rod group, and gas capable of being thermally expanded is filled in the air cavity, so that the telescopic rod group extends when the ambient temperature rises; according to the invention, the first clamping ring and the second clamping ring are arranged, so that the influence of the temperature measuring device on the heat dissipation effect of the contact is greatly reduced, and a gap is also left between the heat conducting wire and the contact when the heat conducting wire is not wound tightly, so that the heat dissipation is facilitated; when the temperature of the helium rises to be below the safe temperature, all electric appliances of the power supply device cannot work, so that the energy is saved, and the temperature measuring device can work for a longer time; the heat conduction silk twines tightly on the surface of contact gradually when the telescopic link group is elongated, reaches the effect that improves contact mechanical strength, and simultaneously, the heat conduction silk can encircle to be form contact, gathers contact temperature information more accurate.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a ring main unit contact temperature measuring device.
Background
The ring main unit is a common electrical device, and is widely used in distribution stations and box-type substations of load centers such as urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like, and in the existing ring main unit power system, especially a high-voltage power system, accidents caused by overhigh temperature of contacts of the electrical device are all the same, and huge potential safety hazards exist.
In the utility model patent with the patent number of CN202122121079.1 and the name of a temperature measuring device for a contact of a ring main unit, the temperature at the contact can be monitored in real time by arranging a sensing temperature measuring device and a display device, but the wired mode is troublesome, the wire arrangement is disordered, and in the invention patent with the patent number of CN201010254862.9 and the name of an intelligent wireless temperature measuring device for a contact of a circuit breaker, an RF wireless data transmission module is adopted to transmit temperature information to an external information receiving device, so that the temperature measuring device is more convenient. However, there are still some disadvantages in the above patents: 1. in the first patent, the contact is coated, which structurally affects the heat dissipation of the contact; 2. in the second patent, various electric appliances in the temperature measuring device are powered by a lithium secondary battery, and a sensor for measuring the temperature still works when the temperature of a contact is below a safe temperature, so that the energy conservation is not facilitated; 3. the mechanical strength of the contact decreases after the temperature of the contact rises, and neither of the above patents can improve the mechanical strength of the contact.
Disclosure of Invention
The invention aims to provide a temperature measuring device for a contact of a ring main unit, which aims to solve the defects.
In order to achieve the purpose, the invention provides the following technical scheme: a temperature measuring device for a contact of a ring main unit comprises a first clamping ring, a second clamping ring and a heat conducting wire wound outside a cylindrical contact, wherein an inner ring of the first clamping ring is in close contact with the contact after the first clamping ring is closed, a gap is reserved between the inner ring of the second clamping ring and the contact after the second clamping ring is closed, the first clamping ring and the second clamping ring are connected through a telescopic rod group, an air cavity is arranged in the telescopic rod group, and gas capable of being subjected to thermal expansion is filled in the air cavity so that the telescopic rod group can extend when the ambient temperature rises;
be equipped with a string post on first snap ring and second snap ring opposite face respectively, seted up the hanging hole on the string post, the both ends of heat conduction silk are respectively in the hanging hole of hook both ends string post, the string post of first snap ring is the heat conduction post, still is provided with temperature sensor, battery, the control unit and wireless transmission module in the inside of first snap ring, and temperature sensor's input and the string post contact of first snap ring, the output is connected with the control unit's input, and the control unit's output is connected with wireless transmission module's input, and wireless transmission module is used for feeding back temperature information to the high in the clouds, and the battery is used for supplying power to temperature sensor, the control unit and wireless transmission module.
Preferably, the air cavity is filled with helium.
Preferably, the telescopic rod group comprises a fixed rod and a movable rod, the air cavity is arranged in the fixed rod, and the fixed rod is fixedly connected with the side wall of the first clamping ring;
the movable rod comprises a conductive piston and a long rod, the conductive piston is arranged in the air cavity in a sliding mode, the long rod is fixedly connected with the conductive piston and penetrates out of the end portion of the fixed rod, the long rod is fixedly connected with the second clamping ring, gas is filled in a closed space formed by the inner wall of the air cavity and the conductive piston in a surrounding mode, and an air hole is formed in the inner wall of the air cavity on the other side of the conductive piston;
the inner wall of the air cavity is symmetrically fixed with a first conducting strip and a second conducting strip, the first conducting strip and the second conducting strip are respectively connected to a power supply circuit of the battery through wires, and the power supply circuit of the battery is conducted when the conducting piston is simultaneously contacted with the first conducting strip and the second conducting strip.
Preferably, the conductive piston does not contact the first conductive plate and the second conductive plate when the heated temperature of the gas in the gas cavity is below the safe temperature.
Preferably, the heat conducting wires can be gradually wound on the surface of the contact during the extension process of the telescopic rod group.
Preferably, first snap ring (1) and second snap ring (2) all include two arc clamps, and two arc clamp links are articulated through the hinge, and the free end is fixed with buckle (6) and card post (7) of mutually supporting.
Preferably, the heat conducting wires (5) are spirally wound outside the contact (8).
Preferably, the outer side wall of the hanging column (4) is in threaded connection with a jacking nut (11) for fixing the heat conducting wire (5).
Compared with the prior art, the invention has the following beneficial effects:
the first clamping ring and the second clamping ring are arranged, so that the influence of the temperature measuring device on the heat dissipation effect of the contact is greatly reduced, and a gap is reserved between the heat conducting wire and the contact when the heat conducting wire is not wound tightly, so that the heat dissipation is facilitated;
when the temperature around the contact is increased, the temperature of helium in the air cavity can be increased, and the helium expands under heat, so that the conductive piston can be pushed to move in the air cavity, and the length of the telescopic rod group is increased;
when the raised temperature of the helium is still below the safe temperature, the conductive piston moves and cannot be in contact with the first conductive sheet and the second conductive sheet, so that a power supply circuit of the battery is not electrified, and electric appliances of the power supply device cannot work at the moment, so that the energy is saved, and the temperature measuring device can work for a longer time;
when the temperature of the helium reaches the warning temperature, the conductive piston moves to be in contact with the first conductive sheet and the second conductive sheet, so that a power supply circuit of the battery is powered on, each electrical appliance of the power supply device starts to work at the moment, the temperature on the surface of the contact is transmitted to the temperature sensor through the heat conducting wire and the hanging column of the first clamping ring, the temperature sensor outputs a monitoring signal to the control unit, the output end of the control unit is transmitted to the cloud end through the wireless transmission module, and monitoring personnel can conveniently check and monitor the temperature of the contact of the ring main unit;
when the temperature of the contact rises, the distance between the first clamping ring and the second clamping ring is increased due to expansion and elongation of the gas in the telescopic rod group, in the process, two ends of the heat conducting wire are pulled outwards so as to be gradually wound on the surface of the contact, the effect of improving the mechanical strength of the contact is achieved, meanwhile, the heat conducting wire can annularly contact the contact, and the temperature information of the contact is more accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the invention mounted to a contact;
FIG. 3 is a schematic view of the telescopic rod assembly of FIG. 2 when extended;
FIG. 4 is a schematic view of an initial position of the conductive piston;
FIG. 5 is a schematic view of the conductive piston about to contact the first and second conductive plates;
FIG. 6 is a schematic view of the conductive piston contacting the first and second conductive plates;
FIG. 7 is a schematic diagram of a temperature measurement process of the ring main unit contact according to the present invention;
FIG. 8 is a schematic view of FIG. 1 from another perspective;
FIG. 9 is an enlarged view of A in FIG. 8;
in the figure: 1-a first snap ring, 2-a second snap ring, 3-a telescopic rod set, 301-a fixed rod, 302-an air cavity, 303-a first conducting strip, 304-an electric wire, 305-a conducting piston, 306-a long rod, 307 air holes, 308-a second conducting strip, 4-a hanging column, 5-a conducting wire, 6-a buckle, 7-a clamping column, 8-a contact, 9-a hinge, 10-a hanging hole and 11-a puller nut.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9, the present invention provides a technical solution: a temperature measuring device for a contact of a ring main unit comprises a first clamping ring 1, a second clamping ring 2 and a heat conducting wire 5 wound outside a cylindrical contact 8, wherein the heat conducting wire 5 is wound outside the contact 8 in a spiral shape. Its inner circle and contact 8 in close contact with after first snap ring 1 is closed, leave the clearance between second snap ring 2 closed back inner circle and contact 8, first snap ring 1 and second snap ring 2 all include two arc clamps, and two arc clamp link are articulated through the hinge, and the free end is fixed with buckle 6 and card post 7 of mutually supporting.
The first clamping ring 1 and the second clamping ring 2 are connected through a telescopic rod group 3, an air cavity 302 is arranged in the telescopic rod group 3, and gas capable of being subjected to thermal expansion is filled in the air cavity 302; the telescopic rod group 3 comprises a fixed rod 301 and a movable rod, an air cavity 302 is arranged in the fixed rod 301, and the fixed rod 301 is fixedly connected with the side wall of the first clamping ring 1; the movable rod comprises a conductive piston 305 and a long rod 306, the conductive piston 305 is arranged in the air cavity 302 in a sliding mode, the long rod 306 is fixedly connected with the conductive piston 305 and penetrates out of the end portion of the fixed rod 301, the long rod 306 is fixedly connected with the second clamping ring 2, air is filled in a closed space formed by the inner wall of the air cavity 302 and the conductive piston 305, and an air hole 307 is formed in the inner wall of the air cavity 302 on the other side of the conductive piston 305; a first conductive plate 303 and a second conductive plate 308 are symmetrically fixed on the inner wall of the air cavity 302, the first conductive plate 303 and the second conductive plate 308 are respectively connected to a power supply circuit of the battery through wires 304, and the power supply circuit of the battery is conducted when the conductive piston 305 is simultaneously contacted with the first conductive plate 303 and the second conductive plate 308. When the helium temperature is below the safe temperature, the conductive piston 305 does not contact the first conductive sheet 303 and the second conductive sheet 308. Therefore, the temperature measuring device does not consume the electric power of the battery, and the service life of the temperature measuring device is prolonged. When the temperature of the helium reaches the alarm temperature, the conductive piston 305 moves into contact with the first conductive sheet 303 and the second conductive sheet 308, and the electric devices of the temperature measuring device start to work.
Be equipped with a string post 4 on first snap ring 1 and 2 opposite faces of second snap ring respectively, seted up the hanging hole on the string post 4, during the both ends of heat conduction silk 5 hook the hanging hole of post 4 in both ends respectively, threaded connection has the tight nut in top 11 that is used for fixed heat conduction silk 5 on the lateral wall of string post 4. The hanging column 4 of the first snap ring 1 is a heat conduction column, and a temperature sensor, a battery, a control unit and a wireless transmission module are further arranged inside the first snap ring 1, and reference can be made to patent number CN201010254862.9, which is named as a working mode of the temperature measuring device in the invention patent of the intelligent wireless temperature measuring device for the circuit breaker contact 8.
Particularly, the input end of the temperature sensor is in contact with the hanging column 4 of the first clamping ring 1, the output end of the temperature sensor is connected with the input end of the control unit, the output end of the control unit is connected with the input end of the wireless transmission module, the wireless transmission module is used for feeding back temperature information to the cloud, and the battery is used for supplying power to the temperature sensor, the control unit and the wireless transmission module.
In this embodiment, the heat conducting wires 5 are initially in a relatively loose state, and can gradually wind around the surface of the contact 8 in the extension process of the telescopic rod group 3. The heat conducting wire has the advantages that a gap is reserved between the heat conducting wire 5 and the contact 8, heat dissipation of the contact 8 is facilitated, and when the contact 8 is tightly wound on the heat conducting wire 5, on one hand, temperature collection on the surface of the contact 8 can be more accurate, and on the other hand, mechanical strength of the contact 8 can be improved.
The working principle is as follows: firstly, a first clamping ring 1 is clamped and fixed on a contact 8, a second clamping ring 2 is closed, then a heat conducting wire 5 is wound on the contact 8 between the first clamping ring 1 and the second clamping ring 2, and two ends of the heat conducting wire are hooked on hanging columns 4 at two ends, so that the installation of the temperature measuring device is completed;
when the temperature of the contact 8 rises, helium in the air cavity 302 is heated, the helium expands when heated and pushes the conductive piston 305 to slide, and when the temperature of the helium is below the safe temperature, the conductive piston 305 does not contact with the first conductive sheet 303 and the second conductive sheet 308, so that the temperature measuring device does not consume the electric power of a battery, and the service life of the temperature measuring device is prolonged;
when the temperature of the helium reaches the warning temperature, the conductive piston 305 moves to be in contact with the first conductive sheet 303 and the second conductive sheet 308, so that a power supply circuit of the battery is electrified, at the moment, electrical appliances of the power supply device start to work, the temperature on the surface of the contact 8 is transmitted to the temperature sensor through the heat conducting wire 5 and the hanging column 4 of the first clamping ring 1, the temperature sensor outputs a monitoring signal to the control unit, the output end of the control unit is transmitted to the cloud end through the wireless transmission module, and monitoring personnel can conveniently check and monitor the temperature of the contact 8 of the ring main unit;
the telescopic rod group 3 makes the distance between the first snap ring 1 and the second snap ring 2 larger due to the expansion and elongation of the internal gas, and in the process, the two ends of the heat conducting wire 5 are pulled outwards to enable the heat conducting wire to be wound on the surface of the contact 8 gradually, so that the effect of improving the mechanical strength of the contact 8 is achieved, meanwhile, the heat conducting wire 5 can be annularly shaped to contact the contact 8, and the temperature information of the contact 8 is collected more accurately.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a looped netowrk cabinet contact temperature measuring device, includes first snap ring (1), second snap ring (2) and twines in outside heat conduction silk (5) of cylinder type contact (8), its characterized in that: the inner ring of the first clamping ring (1) is in close contact with the contact (8) after being closed, a gap is reserved between the inner ring of the second clamping ring (2) and the contact (8) after being closed, the first clamping ring (1) and the second clamping ring (2) are connected through the telescopic rod group (3), an air cavity (302) is formed in the telescopic rod group (3), and gas capable of being subjected to thermal expansion is filled in the air cavity (302) so that the telescopic rod group (3) extends when the ambient temperature rises;
be equipped with one respectively on first snap ring (1) and second snap ring (2) opposite face and hang post (4), seted up the hanging hole on hanging post (4), in the hanging hole of hanging post (4) at the both ends hook both ends respectively of heat conduction silk (5), hanging post (4) of first snap ring (1) are the heat conduction post, still are provided with temperature sensor, battery, the control unit and wireless transmission module in the inside of first snap ring (1), and temperature sensor's input and the hanging post (4) contact of first snap ring (1), and the output is connected with the control unit's input, and the control unit's output is connected with wireless transmission module's input, and wireless transmission module is used for feeding back temperature information to high in the clouds, and the battery is used for supplying power to temperature sensor, the control unit and wireless transmission module.
2. The ring main unit contact temperature measuring device according to claim 1, wherein: helium is filled in the air cavity (302).
3. The ring main unit contact temperature measuring device of claim 1, wherein: the telescopic rod group (3) comprises a fixed rod (301) and a movable rod, an air cavity (302) is arranged in the fixed rod (301), and the fixed rod (301) is fixedly connected with the side wall of the first clamping ring (1);
the movable rod comprises a conductive piston (305) and a long rod (306), the conductive piston (305) is arranged in the air cavity (302) in a sliding mode, the long rod (306) is fixedly connected with the conductive piston (305) and penetrates out of the end portion of the fixed rod (301), the long rod (306) is fixedly connected with the second clamping ring (2), air is filled in a closed space formed by the inner wall of the air cavity (302) and the conductive piston (305), and an air hole (307) is formed in the inner wall of the air cavity (302) on the other side of the conductive piston (305);
a first conducting strip (303) and a second conducting strip (308) are symmetrically fixed on the inner wall of the air cavity (302), the first conducting strip (303) and the second conducting strip (308) are respectively connected to a power supply circuit of the battery through wires (304), and the power supply circuit of the battery is conducted when the conducting piston (305) is simultaneously contacted with the first conducting strip (303) and the second conducting strip (308).
4. The ring main unit contact temperature measuring device of claim 3, wherein: when the heated temperature of the gas in the air cavity (302) is below the safe temperature, the conductive piston (305) is not contacted with the first conductive sheet (303) and the second conductive sheet (308).
5. The ring main unit contact temperature measuring device of claim 1, wherein: the heat conducting wires (5) can be gradually wound on the surface of the contact (8) in the extending process of the telescopic rod group (3).
6. The ring main unit contact temperature measuring device of claim 1, wherein: first snap ring (1) and second snap ring (2) all include two arc clamps, and two arc clamp links pass through the hinge and articulate, and the free end is fixed with buckle (6) and card post (7) of mutually supporting.
7. The ring main unit contact temperature measuring device of claim 5, wherein: the heat conducting wires (5) are spirally wound outside the contact (8).
8. The ring main unit contact temperature measuring device of claim 1, wherein: the outer side wall of the hanging column (4) is in threaded connection with a jacking nut (11) used for fixing the heat conducting wire (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210742330.2A CN115014555A (en) | 2022-06-27 | 2022-06-27 | Looped netowrk cabinet contact temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210742330.2A CN115014555A (en) | 2022-06-27 | 2022-06-27 | Looped netowrk cabinet contact temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115014555A true CN115014555A (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210742330.2A Pending CN115014555A (en) | 2022-06-27 | 2022-06-27 | Looped netowrk cabinet contact temperature measuring device |
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| CN (1) | CN115014555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878692A (en) * | 2023-07-17 | 2023-10-13 | 国网黑龙江省电力有限公司营销服务中心 | Electrical measurement contact temperature measuring device and temperature measuring method |
-
2022
- 2022-06-27 CN CN202210742330.2A patent/CN115014555A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878692A (en) * | 2023-07-17 | 2023-10-13 | 国网黑龙江省电力有限公司营销服务中心 | Electrical measurement contact temperature measuring device and temperature measuring method |
| CN116878692B (en) * | 2023-07-17 | 2023-12-26 | 国网黑龙江省电力有限公司营销服务中心 | Electrical measurement contact temperature measuring device and temperature measuring method |
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