CN104362603B - A kind of safe lightning protection device - Google Patents
A kind of safe lightning protection device Download PDFInfo
- Publication number
- CN104362603B CN104362603B CN201410604386.7A CN201410604386A CN104362603B CN 104362603 B CN104362603 B CN 104362603B CN 201410604386 A CN201410604386 A CN 201410604386A CN 104362603 B CN104362603 B CN 104362603B
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- Prior art keywords
- fuse
- heat
- storehouse
- pumping case
- lightning protection
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- 238000005086 pumping Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000006866 deterioration Effects 0.000 claims description 20
- 239000006004 Quartz sand Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 description 12
- 238000006731 degradation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- Fuses (AREA)
Abstract
The present invention refers in particular to a kind of safe lightning protection device, belong to thunder resisting equipment technical field, including box body, interior pumping case, thermal release device, MOV chips and fuse, the interior pumping case is placed in box body, thermal release device is arranged in interior pumping case, and respectively with MOV chips, fuse connects, fuse chamber is provided with the interior pumping case, the fuse is arranged on fuse intracavitary, current limiting heat build-up storehouse is set in the fuse, heat-dissipating storehouse and fuse, the space that the outer wall in the current limliting heat build-up storehouse is formed with the inwall of the fuse is heat-dissipating storehouse, heat sink material is filled with the heat-dissipating storehouse, the fuse runs through the current limliting heat build-up storehouse and heat-dissipating storehouse.The present invention improves the puncture short electric current tolerance time of MOV chips and the disjunction response time of fuse, when being punctured by Frequency Transient Overvoltage, make lightning protection device will not flame, avoid causing bigger burning and fire.
Description
Technical field
The invention belongs to thunder resisting equipment technical field, be related to it is a kind of puncture under Frequency Transient Overvoltage state do not produce it is bright
Fiery and short blown fuse time lightning protection device, refers in particular to a kind of safe lightning protection device.
Background technology
The effect of lightning protection device is for protecting in low-voltage distribution system various electric equipments from lightning surge, operating
A kind of protection electrical equipment that voltage, Frequency Transient Overvoltage are impacted and damaged.
Existing lightning protection for power supply without band special fuse, is made with miniature circuit breaker or the separation of common fuse
With, tight fit can not be reached therebetween, at present by GB18802.1-2011 and IEC61643.11-2011 standard in city
The lightning protection device and fuse purchased on field are installed, the result in use:
(1) existing fuse uses copper or silver, in order to reach a bigger through-current capacity, it will usually increase fuse
Diameter, but fuse can not fuse rapidly again within the defined time in this case, cause lightning protection device flame, successional
Burning；Reduce the diameter of fuse, fusing time can be shortened, but big through-current capacity can not be obtained again, in technical indicator
Contradiction be present.
(2) fuse malfunction is made, and fuse has fused in the case of Lightning Over-voltage；The overvoltage of thunder and lightning is caused to invade
Enter circuit and equipment, cause to be damaged by protection equipment.
In addition, existing lightning protection device does not have MOV chips (voltage dependent resistor chip) hot equal when being punctured by Frequency Transient Overvoltage
Weigh device, makes lightning protection device that lasting flame occur and causes bigger burning and fire.Make circuit due to fuse is external
Distribution is long, and caused residual voltage ratio is higher between its both ends when causing the lightning discharge electric current to flow through lightning protection device.
The content of the invention
While improving MOV chip breakdown characteristics it is an object of the invention to provide one kind, when also improving fuse response
Between safe lightning protection device.
The object of the present invention is achieved like this：A kind of safe lightning protection device, including box body, interior pumping case, thermal release device,
MOV chips and fuse, the interior pumping case are placed in box body, and thermal release device is arranged in interior pumping case, and respectively with MOV cores
Piece, fuse connection, wherein, chip chamber and fuse chamber are provided with the interior pumping case, the MOV chips are arranged on chip chamber
Interior, described fuse is arranged on fuse intracavitary, and the chip intracavitary is filled with thermal balance integument, and thermal balance integument will
MOV chips are wrapped in it, and current limiting heat build-up storehouse, heat-dissipating storehouse and fuse, the current limliting heat build-up storehouse are set in the fuse
The space that is formed of inwall of outer wall and the fuse be heat-dissipating storehouse, the heat-dissipating storehouse is interior to be filled with heat sink material, the guarantor
Dangerous silk runs through the current limliting heat build-up storehouse and heat-dissipating storehouse.Fuse is set directly in box body, is shortened the wiring lengths of circuit, is carried
The high response time, while reduce residual voltage；And MOV chips are wrapped in it using thermal balance integument, when MOV chip quilts
When Frequency Transient Overvoltage punctures, spark is spurted, directly stopped by thermal balance integument, absorb, extend breakdown time, such as
This fuse in fuse, a part of heat sink material parcel by heat-dissipating storehouse, is timely radiated simultaneously, another part
In current limliting heat build-up storehouse, heat build-up is carried out, the temperature in current limliting heat build-up storehouse is improved, makes to form the temperature difference on fuse, by high temperature collection
In to fuse be in the part in current limliting heat build-up storehouse, carry out pinpointing local fusing, accelerate fusing speed, further improve when responding
Between, by extending breakdown time and improving the two-way function of response time, can meet to obtain larger through-current capacity, and can shortens
Fusing time, make naked light have little time to puncture box body, protect external equipment, substantially increase security performance.
Further optimize, be filled with heat build-up material in the current limliting heat build-up storehouse, the heat build-up material is asbestos, can be further
The heat build-up ability in current limliting heat build-up storehouse is improved, is rapidly heated and is reached the fusing point of fuse and accelerate to fuse.Also can filling liquid or gas
State heat build-up material.
Further optimize, the heat sink material in the thermal balance integument and heat-dissipating storehouse uses quartz sand or ceramics.Cause
Endothermic effect for quartz sand or ceramics is fine, and can stop contact of the spark with the external world completely, more preferable to eliminate faster
Spark, extend breakdown time, the material of certain thermal balance integument there are a variety of selections, for example the material of various heat absorptions of putting out a fire is equal
Can.
Further optimization, the thermal release device include connection sheet, thermal tripping lever and reset tension spring, the connection sheet one
End is connected with the MOV chips by alloy low temperature tin welding, the other end of the connection sheet with fuse.Using connection sheet,
The thermal release device that thermal tripping lever and reset tension spring are formed, when lightning protection device bulk temperature rising reaches 120K, the conjunction in connection sheet
Golden low temperature tin is influenceed to melt by temperature rise, is allowed thermal release device to act, is separated with distribution system, ensure that by the peace of protection equipment
Entirely, while reset tension spring shrinks, and thermal tripping lever is carried out deterioration instruction, as a physical degradation indicator, so as to improve
Overall security.Solve the matching relationship between fuse and lightning protection device by thermal release device, avoid fuse and exist
Malfunction caused by during Lightning Over-voltage, improve the response time of fuse, it is ensured that MOV chips and fuse are temporary in power frequency
Depart from rapidly during state overvoltage, disjunction, Lightning Over-voltage is limited by lightning protection device.
Further optimize, deterioration instruction modular converter, the deterioration instruction modular converter are additionally provided with the interior pumping case
On be provided with instruction diode, the deterioration instruction modular converter is connected with the both ends of the fuse.Indicated in physical degradation
While device, there is provided an electronics to deteriorate indicator, when fuse does not fuse, because deterioration instruction modular converter connects
At the both ends of fuse, the balance of voltage, voltage difference not being produced, instruction diode does not work, when fuse blows, fuse
Both ends just generate voltage difference, deterioration instruction modular converter produces electric current, and instruction diode lights, and does the instruction deteriorated, structure
Indicator is deteriorated into an electronics, is coordinated with physical degradation indicator, more accurately, carries out deterioration instruction, the convenient people that works comprehensively
Member observes and judged deterioration state.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：Improve the puncture short electric current of MOV chips
The disjunction response time of tolerance time and fuse, when being punctured by Frequency Transient Overvoltage, make lightning protection device will not flame, avoid
Cause bigger burning and fire.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 left view schematic diagram；
Fig. 3 is fuse part-structure schematic diagram；
Fig. 4 is the test waveform figure that the present invention embodies MOV chips limitation voltage time；
Fig. 5 is the test waveform figure that the present invention embodies the blown fuse time；
Fig. 6 is test data table；
In figure：10- box bodys, pumping case in 11-, 12- thermal release devices, 13-MOV chips, 14- fuses, 15- chip chambers,
16- fuse chambers, 17- thermal balance integuments, 18- current limliting heat build-ups storehouse, 19- heat-dissipating storehouses, 20- fuses, 21- connection sheets, 22- heat
Dropout lever, 23- reset tension springs, 24- deterioration instruction modular converters, 25- instruction diodes, 26- conductive inserts I, 27- is conductive to be inserted
Piece II.
Embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1-6：A kind of safe lightning protection
Device, including box body 10, interior pumping case 11, thermal release device 12, MOV chips 13 and fuse 14, the interior pumping case 11 are placed in box body
In 10, thermal release device 12 is arranged in interior pumping case 11, and is connected respectively with MOV chips 13, fuse 14, and the outside of box body 10 is set
Conductive insert I 26 and conductive insert II 27 are equipped with, wherein, chip chamber 15 and fuse chamber 16, institute are provided with the interior pumping case 11
State that MOV chips 13 are arranged in chip chamber 15, the fuse 14 is arranged in fuse chamber 16, filled in the chip chamber 15
MOV chips 13 are wrapped in it by thermal balance integument 17, thermal balance integument 17, and current limiting is set in the fuse 14
What the inwall of heat build-up storehouse 18, heat-dissipating storehouse 19 and fuse 20, the outer wall in the current limliting heat build-up storehouse 18 and the fuse 14 was formed
Space is heat-dissipating storehouse 19, and the current limliting heat build-up storehouse 18 is filled with heat build-up material, and the heat build-up material is asbestos, be can further improve
The heat build-up ability in current limliting heat build-up storehouse 18, it is rapidly heated and reaches the fusing point of fuse 20 and accelerate to fuse, is filled out in the heat-dissipating storehouse 19
Filled with heat sink material.Heat sink material in the thermal balance integument 17 and heat-dissipating storehouse 19 uses quartz sand, because quartz sand
Endothermic effect it is fine, and the contact in spark and the external world can be stopped completely, more preferable faster blowout of spark, when extending breakdown
Between.The fuse 20 runs through the current limliting heat build-up storehouse 18 and heat-dissipating storehouse 19.Fuse 14 is set directly in box body 10, is shortened
The wiring lengths of circuit, improve the response time, while reduce residual voltage；And thermal balance integument 17 is utilized by MOV chips
13 are wrapped in it, when MOV chips 13 are punctured by Frequency Transient Overvoltage, spurt spark, are directly wrapped up by thermal balance
Layer 17 stops, absorbed, and extends breakdown time, and so simultaneously, the fuse 20 in fuse 14 a, part is dissipated by heat-dissipating storehouse 19
Hot material is wrapped up, and is timely radiated, and another part is in current limliting heat build-up storehouse 18, carries out heat build-up, improves current limliting heat build-up storehouse
Temperature in 18, make to form the temperature difference on fuse 20, high temperature is focused on into the part that fuse 20 is in current limliting heat build-up storehouse 18, entered
The local fusing of row fixed point, accelerates fusing speed, further improves the response time, by extending breakdown time and improving the response time
Two-way function, make naked light have little time puncture box body 10, protect external equipment, substantially increase security performance.As Fig. 4-6 institute
Show, be experimental test oscillogram of the present invention and data result, SPD (lightning protection device) of the present invention passes through 100 amperes of voltage 800V electric currents
When MOV chips tolerance time reach 200 to 400 milliseconds, up to 867.2 milliseconds, and the short circuit of fuse body of the present invention is melted
The disconnected time is most long 1545.9 to 1067.9 milliseconds, most reaches 437.3 milliseconds soon.Reach the performance of SPD (lightning protection device) safety requirements,
The present invention can be effectively used for all power network lines, and backing is done to power network and people's property safety.
The thermal release device 12 includes connection sheet 21, thermal tripping lever 22 and reset tension spring 23, the connection sheet 21 1
End is connected with the MOV chips 13 by alloy low temperature tin welding, the other end of the connection sheet 21 with fuse 14.Using even
The thermal release device 12 that contact pin 21, thermal tripping lever 22 and reset tension spring 23 are formed, when lightning protection device bulk temperature rising reaches 120K,
Alloy low temperature tin in connection sheet 21 is influenceed to melt by temperature rise, is allowed thermal release device 12 to act, is separated with distribution system, be ensure that
By the safety of protection equipment, while reset tension spring 23 shrinks, and thermal tripping lever 22 is carried out deterioration instruction, bad as a physics
Change indicator, so as to improve overall security.Solve matching somebody with somebody between fuse 14 and lightning protection device by thermal release device 12
Conjunction relation, avoid fuse 14 and malfunctioned caused by Lightning Over-voltage, improve the response time of fuse 14, it is ensured that
MOV chips 13 and fuse 14 depart from rapidly in Frequency Transient Overvoltage, disjunction, and Lightning Over-voltage is limited by lightning protection device.
Deterioration instruction modular converter 24 is additionally provided with the interior pumping case 11, is set on the deterioration instruction modular converter 24
There is instruction diode 25, the deterioration instruction modular converter 24 is connected with the both ends of the fuse 14.Indicated in physical degradation
While device, there is provided an electronics to deteriorate indicator, when fuse 14 does not fuse, because deterioration indicates modular converter
24 are connected on the both ends of fuse 14, the balance of voltage, do not produce voltage difference, instruction diode 25 does not work, and is fused when fuse 14
When, the both ends of fuse 14 just generate voltage difference, and deterioration instruction modular converter 24 produces electric current, and instruction diode 25 is bright
Rise, do the instruction deteriorated, form an electronics deterioration indicator, coordinate with physical degradation indicator, carry out more accurately, comprehensively bad
Change instruction, facilitate staff to observe and judge deterioration state.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to
The equivalence changes that structure, shape, the principle of the present invention is done, all should be covered by within protection scope of the present invention.
Claims (3)
1. a kind of safe lightning protection device, including box body, interior pumping case, thermal release device, MOV chips and fuse, the interior pumping case are put
In in box body, thermal release device is arranged in interior pumping case, and is connected respectively with MOV chips, fuse, is provided with the interior pumping case
Fuse chamber, it is characterised in that：The fuse is arranged on fuse intracavitary, set in the fuse current limiting heat build-up storehouse,
Heat-dissipating storehouse and fuse, the space that the outer wall in the current limliting heat build-up storehouse is formed with the inwall of the fuse is heat-dissipating storehouse, described
Heat sink material is filled with heat-dissipating storehouse, the fuse runs through the current limliting heat build-up storehouse and heat-dissipating storehouse；In the current limliting heat build-up storehouse
Filled with heat build-up material, the heat build-up material is asbestos；Heat sink material in the heat-dissipating storehouse uses quartz sand.
A kind of 2. safe lightning protection device according to claim 1, it is characterised in that：The thermal release device include connection sheet,
Thermal tripping lever and reset tension spring, described connection sheet one end pass through alloy low temperature tin welding, the connection sheet with the MOV chips
The other end be connected with fuse.
A kind of 3. safe lightning protection device according to claim 1, it is characterised in that：Deterioration is additionally provided with the interior pumping case to refer to
Show modular converter, be provided with instruction diode on the deterioration instruction modular converter, the deterioration instruction modular converter with it is described
The both ends connection of fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604386.7A CN104362603B (en) | 2014-10-31 | 2014-10-31 | A kind of safe lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604386.7A CN104362603B (en) | 2014-10-31 | 2014-10-31 | A kind of safe lightning protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104362603A CN104362603A (en) | 2015-02-18 |
| CN104362603B true CN104362603B (en) | 2018-03-16 |
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ID=52529841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604386.7A Active CN104362603B (en) | 2014-10-31 | 2014-10-31 | A kind of safe lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104362603B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0462025A1 (en) * | 1990-06-11 | 1991-12-18 | Schneider Electric Sa | Disconnectable surge arrester for low-voltage installations |
| CN202917942U (en) * | 2012-10-24 | 2013-05-01 | 康迎利 | Surge protection device (SPD) dedicated security device |
| CN203398066U (en) * | 2013-08-15 | 2014-01-15 | 浙江新力熔断器有限公司 | Fuse body for protecting photovoltaic system |
| CN103915833A (en) * | 2014-03-11 | 2014-07-09 | 王统 | Safe anti-thunder device |
| CN204216580U (en) * | 2014-10-31 | 2015-03-18 | 王统 | A kind of safe lightning protection device |
-
2014
- 2014-10-31 CN CN201410604386.7A patent/CN104362603B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0462025A1 (en) * | 1990-06-11 | 1991-12-18 | Schneider Electric Sa | Disconnectable surge arrester for low-voltage installations |
| CN202917942U (en) * | 2012-10-24 | 2013-05-01 | 康迎利 | Surge protection device (SPD) dedicated security device |
| CN203398066U (en) * | 2013-08-15 | 2014-01-15 | 浙江新力熔断器有限公司 | Fuse body for protecting photovoltaic system |
| CN103915833A (en) * | 2014-03-11 | 2014-07-09 | 王统 | Safe anti-thunder device |
| CN204216580U (en) * | 2014-10-31 | 2015-03-18 | 王统 | A kind of safe lightning protection device |
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| Publication number | Publication date |
|---|---|
| CN104362603A (en) | 2015-02-18 |
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Effective date of registration: 20180719 Address after: 325600 310 Wei seventeen Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang province (Yueqing Kai Zhou Electric Co., Ltd.) Patentee after: Zhejiang five Rong Electronics Co., Ltd. Address before: 325604 Gao Qian village, Liushi Town, Yueqing City, Wenzhou, Zhejiang Co-patentee before: Chen Bin Patentee before: Wang Tong |