CN205723969U - A kind of temperature alarm wire clamp - Google Patents
A kind of temperature alarm wire clamp Download PDFInfo
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- CN205723969U CN205723969U CN201620165963.1U CN201620165963U CN205723969U CN 205723969 U CN205723969 U CN 205723969U CN 201620165963 U CN201620165963 U CN 201620165963U CN 205723969 U CN205723969 U CN 205723969U
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- wire clamp
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- temperature alarm
- melting alloy
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- 238000010438 heat treatment Methods 0.000 claims abstract description 14
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- 239000000155 melt Substances 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
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- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
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- 241000196324 Embryophyta Species 0.000 description 1
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- 241000018646 Pinus brutia Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
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- Electric Cable Installation (AREA)
Abstract
This utility model provides a kind of temperature alarm wire clamp, relates to field of electrical equipment, is used for the wire clamp fault overheated monitoring, alarming problem in operation of power networks that solves, it is achieved: 1, do not report by mistake and fail to report, alleviating operation workload；2, durable in use；3, the exterior structure of existing wire clamp, energy-conserving and environment-protective are kept；4, alarm condition can keep；5, instruction is reported to the police substantially；6, installation steps are not increased, easy, firmly；7, reducing heat transmission link, accuracy of detection tolerance is less than positive and negative 1 degree Celsius；8, simple in construction, with low cost；9, non-maintaining.It is characterized in that built-in at least one cylindrical cavity of wire clamp conductor component, successively compression loads a spring and the cross-under warning cloth at spring end, hole mouth low-melting alloy lid seals, when wire clamp heating reaches low-melting alloy fusing point, low-melting alloy lid melts, warning cloth is ejected hole by spring and launches, and it is overheated that warning wire clamp there occurs.
Description
Technical field
This utility model relates to field of electrical equipment, is specifically related to a kind of temperature alarm wire clamp.
Background technology
Power overhead network generally use wire clamp wire is attached.Due to equipment design, product quality, construction
The reasons such as quality, operating condition, the operation time limit may cause a part of wire clamp loose contact occur and abnormal heating.According to existing
Equipment operating standard and the requirement of specification, wire clamp occurs that abnormal heating belongs to defect, needs to the greatest extent when great and urgent defect occurs
Fast maintenance, otherwise may blow wire, causes equipment even large area blackout, and consequence is the most serious.
Although to be wire clamp contact resistance abnormal increases for wire clamp heating basic reason, but the most also with load current, wind speed, ring
Border temperature is closely related with changing factors such as sunshines, and when being superimposed of various least favorable factors, wire clamp temperature there will be fast
Violent rising, accidents caused.Generally, operations staff monthly carries out cycle routine tour, but bore hole cannot find wire clamp
Fever phenomenon.Infra red thermograph it appeared that wire clamp fever phenomenon but exist inconvenient to carry, make an inspection tour time detection the cost time relatively
The factors such as many, price is high, do not use when general customary tour.Operation power unit common practice is to typically now
Carry out equipment half a year or 1 year infra red thermograph monitoring once, visual plant is monthly carried out infra red thermograph monitoring.
What thermal infrared imager line walking detected is wire clamp temperature at that time, causes significant portion heating defect not find in time, increases
Fault continues to deteriorate the probability becoming accident, brings risk to operation of power networks.
Existing common wire clamp is installed a kind of method that overheating alarmer is maximum febrile state catching wire clamp, so
And current technology scheme there is also weak point.
A kind of electrical equipment of application number CN201510697429.5 disclosure of the invention heating indicator and drive element and
Preparation method, indicator includes base, drives element and the upper cover with base engagement；Drive element be installed on base and upper cover it
Between；Driving element material is marmem；Driving element is around the planar spiral formed when room temperature, by thermal deformation
Rear drive element is the three-dimensional spiral type that longitudinally height increases.It is little that the program has volume, sensitive feature, is suitable for narrow
The little device space is installed and used.But this technical scheme is if applied on electric line, then can there is following deficiency
Locate: 1, warn inconspicuous.Transmission line of electricity tower height is typically at tens meters, and memory metal area is the least, is difficult to by ground in ejection state
Lower track walker is observed visually.2, tight sealing, in the wild wind and weather are lacked between base and upper cover, time length,
The warning color that surface is coated with easily is faded.3, the measurement tolerance of material is generally at 10 ° of more than C, to the accuracy of measurement of temperature not
Enough height.
Application number CN201510018197.6 disclosure of the invention power system high-low pressure heating position automatic indicator, with
TiNi two-way memory alloy intelligence spring temperature-sensing element, the contact easily generated heat by TiNi two-way memory alloy intelligence spring perception
On the temperature ejection that makes TiNi two-way memory alloy intelligence spring generation mechanical movement control red flag show easily
On the contact of heating.In place of this technical scheme Shortcomings: 1, red flag does not has tight sealing, in the wild wind rain
Drenching, time length, the warning color that surface is coated with easily is faded；2, the measurement tolerance of material is generally at 10 ° of more than C, to temperature
Accuracy of measurement is not high enough；3, volume is big, and mechanism is complicated, is applied on ultra-high-tension power transmission line, is susceptible to corona, produces wireless
Electrical interference.
Application number 201610062782.0 invention provides a kind of apparatus overheat alarm, it is characterised in that an instruction cloth folds
And put into a bottle together with after a spring-compressed, and covering a bottle cap, bottle cap is connected with flipe one end, bottleneck and the rank of bottle cap
Connecing place's low-melting alloy welded seal, bottle cap surface snugly fits to monitored equipment surface, when monitored equipment temperature is high
When low-melting alloy fusing point, low-melting alloy melts, and flipe is ejected bottle by compression spring and launches, display alarm equipment
It is overheated to there occurs.This technology provides a kind of feasible solution, huge for solving current power system quantity on hand
Common wire clamp fever monitoring problem.But the program there is also following weak point: 1, when newly installed operation equipment, except line
Outside folder, in addition it is also necessary to additionally purchase, alarm device is installed, add management and construction link, for field high altitude operation,
Costly, very important.2, alarm device needs the parts that are connected with existing wire clamp, there is junction and conducts heat and be lost, and
Firm not risk is installed.3, alarm device needs parts and the encapsulation of independent shell being connected with existing wire clamp, adds
Product cost.
Designing a kind of wire clamp with overheated alarm function is a technical scheme solving the problems referred to above, but prior art
Scheme there is also many weak points.
A kind of Intelligent power connecting device of application number CN201110116903.2 disclosure of the invention, including wiring clip shell,
It is provided with the briquetting device for two ends clamping wire in wiring clip shell, housing is additionally provided with instruction device installing hole, indicates device
The indicating arm that can eject instruction device installing hole it is provided with when wiring clip shell is overheated in installing hole.This intelligent electric power couples dress
It is provided with, in putting the instruction device installing hole in wiring clip shell, the indicating arm that can eject, when coupling, due to wire clamp, reasons such as loosening
Electric current in wiring clip shell is increased, and when causing wiring clip shell overheated, the indicating arm in instruction device installing hole will be from hole
Interior ejection, in order to maintainer can learn that this electric power coupling arrangement or circuit have potential safety hazard the most intuitively, thus examines
Repair.There is following weak point in this technical scheme: 1, the size of usual wire clamp is about 100 millimeters of amplitudes, is limited by wire clamp volume
System, the length of indicating arm is about 100 millimeters of amplitudes, and cross section is less, is easily obstructed the view by wire and wire clamp, even if not kept off
Living, the wire clamp setting height(from bottom) of general shaft tower circuit is both greater than 10 meters, makes an inspection tour personnel the biggest in the difficulty of ground-level finding indicating arm.2、
Under normal circumstances, along with the change of electric current and ambient temperature etc., wire clamp temperature has the normal variation of tens degree every day.Use double
How the kinestate that sheet metal temperature distortion pushing mechanism is in the normal state, under the operating mode not having water proof and dust proof, realize online
Folder ensures functional reliability within the time limit of about 30 years service life, the most specifically provides technology in this technical scheme
Scheme, there is difficulty in understanding and realization for professional and technical personnel.According to operating experience, wire clamp heating odds exists
0.1% rank, if the reliability of alarm device is not above the reliability of wire clamp, then wrong report will be a Great possibility,
Alarm device is that practicality will be given a discount.3, not fully sealing due to device, device uses in the wild can intake and dust,
Components and parts for needing precision operation to control constitute a threat to, by cause being difficult to reaching built on stilts power equipment to scrap the time limit usual
Reach the requirement of 20 to 30 years.
Realize the connecting portion of high pressure electric line is carried out temperature alarm, need to solve following problem: 1, monitor
The functional reliability of equipment necessarily be greater than the reliability of the connecting portion of high pressure electric line, and otherwise equipment heating is compared in misoperation
Fault is more frequent, it is impossible to alleviate operation workload.2, equipment is durable in use, otherwise often to change, and work high above the ground is constructed
Costly.3, monitoring device volume is sufficiently small, and profile is round and smooth, is susceptible to corona outside the most too protruding from conductor
Electric discharge, produces the radio interference and audible noise exceeded standard.4, temperature once reaches alarm temperature, and alarm indicator persistently to be protected
Holding, it is impossible to when temperature reduces again, alarm condition disappears, otherwise track walker is relatively low in power line load, wind speed is relatively big,
Can not discovering device fault during line walking when temperature is relatively low.5, alarm indicator state to be wanted with the shape difference of normal condition
Sufficiently large, otherwise it is difficult to find more than ten meters high alarm indicators when coming back viewing.6, instruction material of reporting to the police should use insulation
Material, otherwise when instruction material of reporting to the police stretches out, is susceptible to corona discharge outside too protruding from conductor, generation exceeds standard
Radio interference and audible noise.7, connection is installed and wants reliable, be otherwise arranged under the intense vibration of wire and be susceptible to pine
De-.8, the temperature-sensitive position of monitoring device is sufficiently small with the thermal resistance of wire clamp heating position, otherwise under the strong wind state of high-altitude, and temperature-sensitive
Position and monitored equipment excessive temperature differentials, accuracy declines.
Utility model content
This utility model purpose is to provide a kind of temperature alarm wire clamp, is used for solving wire clamp fault in operation of power networks overheated
Monitoring, alarming problem, and realize further: 1, do not report by mistake and fail to report, it is achieved reliability more higher than common wire clamp, alleviating operation
Workload；2, sealing corrosion is durable in use；3, keep the exterior structure of existing wire clamp, do not increase corona discharge and electromagnetic eddy,
Energy-conserving and environment-protective；4, alarm condition can keep；5, instruction of reporting to the police easily is found；6, need not increase the installation steps of wire clamp,
Easy, firmly；7, reducing heat transmission link, direct built-in detection, accuracy of detection is high, and tolerance is less than positive and negative 1 degree Celsius, action
Temperature spot will not drift about change；8, simple in construction, with low cost；9, non-maintaining.
To achieve these goals, this utility model provides a kind of temperature alarm wire clamp, it is characterised in that wire clamp conductor
Built-in at least one cylindrical cavity of component, successively compression loads a spring and the cross-under warning cloth at spring end, and hole mouth is used
Low-melting alloy lid seals, and when wire clamp heating reaches low-melting alloy fusing point, low-melting alloy lid melts, and warning cloth is by spring
Ejecting hole and launch, it is overheated that warning wire clamp there occurs.
Above-mentioned cylindrical cavity is one or two, and correspondence chooses the low-melting alloy that one or both fusing points are different,
And the warning cloth that color is different.
Above-mentioned cylindrical cavity is positioned at the briquetting of c-type wire clamp.
Above-mentioned cylindrical cavity is positioned at connection wire clamp drainage plate.
The screw thread that above-mentioned low-melting alloy lid is made up of low-melting alloy is installed on hole mouth.
Above-mentioned low-melting alloy lid is installed on hole mouth by low-melting alloy welding.
Above-mentioned spring is bolted the bottom at cylindrical cavity.
Above-mentioned cylindrical cavity surface powder coating.
Temperature alarm wire clamp of the present utility model, it is possible to achieve following beneficial effect: 1, be not required to by thermal infrared imager
With additionally mounted overheating alarmer, it is possible to realize wire clamp overheating fault is carried out warning alert, save large number quipments cost
And O&M cost.2, the functional reliability of temperature alarm component is high.Temperature alarm component does not has with bolts, stops
There is looseness fault under vibration operating mode in bolt；There is no electronic component and battery, reduce the probability of failure when high temperature and low temperature；Low
The fusing point set point of melting alloy is accurate, can reach positive and negative 1 degree Celsius, as temperature-sensitive element, be built in inside wire clamp, with
Wire clamp temperature synchronizes change, and simultaneously again as action element, the energy storage of spring maintains a long-term stability.3, wire clip body is as overheated
The shell of warning component, and use metal solder to seal, it is possible to prevent aqueous vapor, dust, oxygen, ultraviolet to enter, overheated report
Alert component be possible to prevent oxidation, fade aging, durable in use, reach and common wire clamp service life of 20 to 30 years, it is to avoid
Often change, reduce the high operating expenses of work high above the ground.4, do not change existing wire clamp outward appearance, corona discharge, nothing will not be increased
Line electrical interference and audible noise.5, wire clamp temperature is very big by affecting at electric current, wind speed, temperature, sunshine etc., and temperature alarm wire clamp is permissible
Round-the-clock detection, temperature once reaches alarm temperature, and alarm indicator just can keep, even if track walker is temporary transient in wire clamp temperature
Line walking during reduction is it has also been discovered that report to the police.It is different from thermal infrared imager and only detects Current Temperatures.6, can be according to the installation of wire clamp
Position Design is reported to the police and is indicated the area of cloth, even if being arranged on tens meters of height, it is also possible to find easily on ground.7, warning instruction
Cloth uses insulant, when instruction material of reporting to the police stretches out, it is not easy to occurs corona discharge to produce the radio exceeded standard and does
Disturb and audible noise.
Accompanying drawing explanation
Fig. 1 is temperature alarm wire clamp of the present utility model structural representation in a monitoring state；
Fig. 2 is temperature alarm wire clamp of the present utility model structural representation in an alarm state；
Fig. 3 is c-type temperature alarm wire clamp of the present utility model structural representation in a monitoring state；
Fig. 4 is strain insulator temperature alarm wire clamp of the present utility model structural representation in a monitoring state.
Detailed description of the invention
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, built-in at least one cylindrical cavity 2 of the wire clamp conductor component 1 of the present embodiment, successively compression loads a bullet
Spring 4 and cross-under warn cloth 3 at the one of spring 4 end, and spring 4 is fixed on the bottom of cylindrical cavity 2, hole 2 opening part by bolt 5
Sealing with low-melting alloy lid 6, the screw thread that low-melting alloy lid 6 is made up of low-melting alloy is installed on the opening of cylindrical cavity 2
Place, or it is further heated to low-melting alloy lid 6 and cylindrical cavity 2 welding installation, it is ensured that firmly install and seal.Cylindrical hole
Surface, hole 2 powder coating, reduces frictional force when warning cloth 3 ejects.Warning cloth 3 selects insulation, frivolous cloth or macromolecule
Thin-film material, thickness 0.06 millimeter, at a diameter of 8 millimeters, the degree of depth be the space of 80 millimeters can accommodate one piece 300 millimeters long,
The warning cloth of 200 mm wides.
As in figure 2 it is shown, when wire clamp conductor component 1 heating reaches low-melting alloy fusing point, low-melting alloy lid 6 melts,
Warning cloth 3 is ejected cylindrical cavity 2 by spring 4 and launches, and it is overheated that warning wire clamp there occurs.Temperature according to fever monitoring is different,
The low-melting alloy of corresponding fusing point can be selected.Low-melting alloy is made up of metals such as bismuth, stannum, lead, and melting range is 50 to 200
Degree Celsius.The fusing point of low-melting alloy is made up of the ratio of various metals and determines, has higher hard when less than melting temperature
Degree, it is provided that highly stable reliable temperature monitoring warns, and the margin of tolerance is up to positive and negative 1 degree Celsius.In one embodiment, choosing
With the low-melting alloy that fusing point is 70 and 100 degrees Celsius, corresponding selection yellow and red warning cloth 3.
As it is shown on figure 3, a specific embodiment of the present utility model is to be suitable for the c-type that 10 kilovolts of overhead distributions use
Temperature alarm wire clamp, at one cylindrical cavity 2 of briquetting 7 inner part drilling, or at two briquettings 7, one cylindrical cavity 2 of internal each brill,
Low-melting alloy lid 6 sealing cylinder hole 2, and maintain an equal level with surface.
As shown in Figure 4, another specific embodiment of the present utility model is to be suitable for 10 to 1000 kilovolts of built on stilts transmission and distribution lines
The strain insulator temperature alarm wire clamp that road uses, at one cylindrical cavity 2 of drainage plate 8 inner part drilling or internal each at two drainage plates 8
Bore a cylindrical cavity 2, low-melting alloy lid 6 sealing cylinder hole 2, and maintain an equal level with surface.
Above-described embodiment illustrates, and makes description only for application the technical solution of the utility model, does not limit online
The existing known technology of other position application of folder, such as the installation of securing member, does not the most limit the change etc. of shape.According to this practicality
Novel technical scheme, can apply on the wire interconnecting piece position of more kinds of models, including transformator, spark gap, chopper,
The joint area of the equipment such as disconnecting link, cable connector, numerous to list herein, fall within protection domain of the present utility model.
Claims (8)
1. a temperature alarm wire clamp, it is characterised in that built-in at least one cylindrical cavity of wire clamp conductor component, successively compresses loading
One spring and cross-under warn cloth at the one of spring end, and hole mouth low-melting alloy lid seals, when wire clamp heating reaches eutectic
During point alloy melting point, low-melting alloy lid melts, and warning cloth is ejected hole by spring and launches, and it is overheated that warning wire clamp there occurs.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described cylindrical cavity is one or two,
Correspondence chooses the low-melting alloy that one or both fusing points are different, and the warning cloth that color is different.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described cylindrical cavity is positioned at the pressure of c-type wire clamp
In block.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described cylindrical cavity is positioned at connection wire clamp and draws
In stream plate.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described low-melting alloy lid is closed by low melting point
The screw thread that gold is constituted is installed on hole mouth.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described low-melting alloy lid is closed by low melting point
Gold welding is installed on hole mouth.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described spring is bolted at cylindrical hole
The bottom in hole.
Temperature alarm wire clamp the most according to claim 1, it is characterised in that described cylindrical cavity surface powder coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165963.1U CN205723969U (en) | 2016-03-04 | 2016-03-04 | A kind of temperature alarm wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165963.1U CN205723969U (en) | 2016-03-04 | 2016-03-04 | A kind of temperature alarm wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205723969U true CN205723969U (en) | 2016-11-23 |
Family
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|---|---|---|---|
| CN201620165963.1U Expired - Fee Related CN205723969U (en) | 2016-03-04 | 2016-03-04 | A kind of temperature alarm wire clamp |
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| CN (1) | CN205723969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154539A (en) * | 2016-03-04 | 2017-09-12 | 深圳带路科技有限公司 | A kind of temperature alarm wire clamp |
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2016
- 2016-03-04 CN CN201620165963.1U patent/CN205723969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154539A (en) * | 2016-03-04 | 2017-09-12 | 深圳带路科技有限公司 | A kind of temperature alarm wire clamp |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 |