CN105118759A - Temperature control drop-out type fuse - Google Patents
Temperature control drop-out type fuse Download PDFInfo
- Publication number
- CN105118759A CN105118759A CN201510537596.3A CN201510537596A CN105118759A CN 105118759 A CN105118759 A CN 105118759A CN 201510537596 A CN201510537596 A CN 201510537596A CN 105118759 A CN105118759 A CN 105118759A
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- module
- fuse switch
- control module
- temperature
- fuse
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- 238000012423 maintenance Methods 0.000 claims abstract description 55
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000004927 fusion Effects 0.000 claims description 27
- 238000004146 energy storage Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 12
- 229910052573 porcelain Inorganic materials 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 7
- 230000010365 information processing Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/167—Circuits for remote indication
Landscapes
- Fuses (AREA)
Abstract
The invention discloses a temperature control drop-out type fuse, belonging to the power supply system technology field. The temperature control drop-out type fuse comprises a drop-out type fuse, a power failure maintenance system and a wind power system; a power failure maintenance system is installed on an installation support of the drop-out type fuse; the wind power system is connected to the power failure maintenance system for supplying power and automatically cooling according to the surface temperature of the drop-out type fuse; the power failure maintenance system starts detecting when the fusing body of the drop-out fuse is in outage for detecting pressure received by the upper contact and the lower contact of the drop-out fuse and detecting the looseness of the fusing body. The temperature control drop-out type fuse is capable of automatic maintenance, monitoring fusing tube temperature and self-function, and fast and convenient. Besides, the temperature control drop-out type fuse can automatically transmit the detection result to the communication tool of the maintenance staff and can solve the problems that the people have to check the drop-out type fuses one by one in a power failure maintenance, which is time-and-labor-consuming and has heavy workload.
Description
Technical field
The invention belongs to electric power system technical field, relate to high voltage protective electrical equipment direction, be specifically related to a kind of temperature control fuse switch.
Background technology
Along with the process of the insulating of overhead distribution, all insulation of power department to the fuse switch used a large amount of in circuit requires increasingly urgent.Full-insulating high-voltage drop-off formula current limiting fuse achieves the integrally closed of product, insulation, the also i.e. any object contact of product and outside, all can not cause conducting or short circuit, thus substantially increase the fail safe of circuit operation.
Fuse switch is arranged on 10kV distribution line branch line, can power failure range be reduced, because it has an obvious cut-off point of high voltage drop-out type fuse cutout, possess the function of isolating switch, create a safety work environment to maintenance section circuit and equipment, add the sense of security of maintainer.Be arranged on distribution transformer, can as the main protection of distribution transformer, so, obtain universal in 10kV distribution line and distribution transformer.But much inspection work need be done to fuse when overhauling: fuse rotary part is whether flexible, whether corrosion, rotate ineffective etc. abnormal; Whether quiet, moving contact contact coincide, closely intact, with or without burn vestige; Whether melt becomes lax unable; Such maintainer's workload is larger, find the problem that fuse switch is not easy to locate, and product regular service conditions: ambient temperature is not higher than+40 degree, be not less than-40 degree, the ambient temperature of product is also need to control, the normal work that not so product temperature affected by environment too highly can be burnt, the accident such as blast delays fuse.
Summary of the invention
According to above the deficiencies in the prior art, technical problem to be solved by this invention proposes a kind of temperature control fuse switch, by arranging the automatic examination and repair system that has a power failure on fuse switch, what solve that fuse switch checks one by one in interruption maintenance wastes time and energy and larger workload, there is automatic maintenance, monitoring fusion tube temperature, self function, quick and convenient, and automatically send testing result on the communication tool of maintenance personal, time saving and energy saving advantage
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of temperature control fuse switch, described fuse comprises fuse switch, interruption maintenance system and wind power system, interruption maintenance system is arranged on the mounting bracket of fuse switch, wind power system connects interruption maintenance system and is its power supply and automatically lowers the temperature according to the surface temperature of fuse switch, interruption maintenance system starts testing when the melt power-off of fuse switch, be used for detecting the pressure that the upper contact head of fuse switch and lower contact are subject to, detect the slackness of melt.
Described fuse switch comprises mounting bracket, porcelain piece and fusion tube, the upper end of porcelain piece is connected with cover slot, the lower end of porcelain piece is connected with undersetting, the upper end of fusion tube has guide hook, upper contact head and operation ring, upper contact head is flexibly connected with upper cover slot, the lower end of fusion tube has the lower contact adapted with undersetting, arranges melt in fusion tube.Described wind power system comprises fan blade, microgenerator, wind-powered electricity generation transducer, energy-storage units and processor, fan blade is arranged near fusion tube, fan blade connects microgenerator, it is electric energy by Wind resource change that microgenerator connects wind-powered electricity generation transducer, wind-powered electricity generation transducer connect energy-storage units by electrical power storage in energy-storage units, energy-storage units connection handling device, the rotating shaft of processor connection control fan blade, energy-storage units connects interruption maintenance system for its power supply.Described wind power system also comprises temperature detecting unit, and temperature detecting unit is arranged on the temperature and the ambient temperature that are used for detecting fusion tube near fusion tube, and connects on a processor, and temperature detection signal is sent to processor.Described interruption maintenance system comprises inversed module, automatically overhauls module, communication module, control module and remote signal receiving terminal, it is interruption maintenance system power supply that wind power system connects the intrasystem modules of interruption maintenance, inversed module, automatically maintenance module and communication module are connected in control module, and control module is by communication module wireless connections remote signal receiving terminal.The input of described inversed module connects melt, the output link control module of inversed module, inversed module when melt has electricity output low level signal to control module, control module does not work, inversed module exports high level signal to control module when melt has a power failure, control module is started working.Described automatic maintenance module comprises pressure sensing cell, Relaxation detecting unit, cut deformation detection unit, pressure sensing cell is arranged on link control module under the contact of fuse switch, Relaxation detecting unit is used for the melt slackness link control module of fuse switch, and cut deformation detection unit is used for detecting the damage of fusion tube, crackle, burn trace link control module.Described communication module is provided with information-processing circuit plate, and information-processing circuit plate is provided with SIM Mobile phone card, and control module is carried out wireless signal by SIM Mobile phone card and remote signal receiving terminal and is connected.Described control module is provided with database, and database is used for storing the Output rusults of data-signal that maintenance module automatically detects and control module, the data of control module delete database after the delete instruction receiving remote signal receiving terminal.
Beneficial effect of the present invention is: the invention provides a kind of temperature control fuse switch, fuse provided by the invention automatically overhauls fuse when line outage installed by fuse, check whether the upper and lower contact of fuse switch coincide, closely intact, with or without burn vestige; Whether fuse rotary part flexible, whether corrosion, rotate ineffective etc. abnormal; Melt itself whether sustains damage, extend with or without heating after long-term energising and too much become the lax phenomenon such as unable, overhaul in time when having a power failure, and adopt independently electric power system, utilize high altitude wind energy, storage power while lowering the temperature to fusion tube, sends the inspecting state of prompting work fuse in time on the data message that detects to other communication tools such as mobile phone of maintenance personal.
Accompanying drawing explanation
Below the content expressed by this Figure of description and the mark in figure are briefly described:
Fig. 1 is the structural representation of the fuse switch of the specific embodiment of the present invention.
Fig. 2 is the work structuring block diagram of the interruption maintenance system of the specific embodiment of the present invention.
Fig. 3 is the work structuring block diagram of the wind power system of the specific embodiment of the present invention.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
The invention provides a kind of temperature control fuse switch, fuse provided by the invention automatically overhauls fuse when line outage installed by fuse, checks whether the upper and lower contact of fuse switch coincide, closely intact, with or without burn vestige; Whether fuse rotary part flexible, whether corrosion, rotate ineffective etc. abnormal; Melt itself whether sustains damage, extend with or without heating after long-term energising and too much become the lax phenomenon such as unable, as long as have wind when ambient temperature is too high, fan rotates with the wind and is got off by wind energy storage, and the information detected is sent to the inspecting state of timely prompting work fuse on other communication tools such as the mobile phone of maintenance personal.
Temperature control fuse switch comprises fuse switch, interruption maintenance system and wind power system, interruption maintenance system is arranged on the mounting bracket of fuse switch, the support that wind power system is arranged on fuse connects interruption maintenance system for its power supply, interruption maintenance system starts testing when the melt power-off of fuse switch, be used for detecting the pressure that the upper contact head of fuse switch and lower contact are subject to, detect the slackness of melt.
As shown in Figure 1, fuse switch comprises mounting bracket, porcelain piece and fusion tube, the upper end of porcelain piece is connected with cover slot, the lower end of porcelain piece is connected with undersetting, the upper end of fusion tube has guide hook, upper contact head and operation ring, and upper contact head is flexibly connected with upper cover slot, and the lower end of fusion tube has the lower contact adapted with undersetting, the middle part of porcelain piece has stretches out bar, and porcelain piece stretches out bar and mounting bracket removably connects.The bottom of fusion tube can be overlapped and have copper pipe, to increase coefficient of safety.
As shown in Figure 2, interruption maintenance system comprises inversed module, automatic maintenance module, communication module, control module, remote signal receiving terminal, interruption maintenance system is arranged on the support of fuse, one end of the melt of fuse connects inversed module, inversed module is used for judging the energising situation of melt and high pressure resistant, when receiving melt energising, inversed module is by input signal negate, maintenance module does not receive work order, when fuse power-off, when melt there is no electric current process, inversed module receives low level signal output services signal to control module.Control module sends work order, automatic maintenance model calling control module is started working according to the work order of control module, upper and lower contact can be detected when automatic maintenance module work whether coincide, with or without burn vestige, whether rotary part is flexible, melt whether pine etc., maintenance model calling control module automatically, send the signal that detects to control module carries out data analysis and compares reaching a conclusion in control module.Control module connects communication module, testing result is sent to by communication module the remote signal receiving terminal that maintenance personal carries, remote signal receiving terminal can be workbench also can be mobile communication instrument, wireless remote transmits, signal transmission distance, do not need staff's detailed inspection one by one, staff at the scene or directly teleprocessing.
Automatic maintenance module comprises pressure sensing cell, Relaxation detecting unit, cut deformation detection unit, temperature detecting unit, pressure sensing cell insulating mounting is under the contact of fuse, all need in upper and lower contact install and be insulating mounting, the pressure that contact is used between detection contact and its connecting portion is arranged on after insulation parcel, due to high-tension electricity heating, avoid it on the impact of pressure sensing cell, so pressure detecting is arranged on contact after insulation parcel increase its working life, pressure sensing cell link control module transmits a signal to control module, control module judges that whether the pressure that contact is subject to is normal, whether exceed allowed band.Whether the melt that Relaxation detecting unit link control module is used for detecting fuse occurs relaxing, and when there is the phenomenon that melt relaxes, control module notifies maintenance personal by communication module.Cut deformation detection unit link control module, be used for detecting fusion tube and have not damaged, crackle, burn vestige, detect Timeliness coverage problem in time when power failure, process the data-signal detected in the control module and data are carried out classification process, notify maintenance personal.
Communication module in the present invention, communication module is provided with information-processing circuit plate, information-processing circuit plate is provided with SIM Mobile phone card, control module is carried out wireless signal by SIM Mobile phone card and remote signal receiving terminal and is connected, remote signal receiving terminal is gone forward side by side after row relax and is reminded maintenance personal receiving warning information that control module sends, remote signal receiving terminal can store and process the testing result signal sended over from control module and comprise alarm signal and normal signal, the testing result of each fuse will send testing result to remote signal receiving terminal, alarm signal and normal signal all need to send, this ensures that there the normal work of automatic checkout system, the signal not receiving automatic checkout system breaks down once can be inferred as detection system, the personnel on site that needs repairing checks, be provided with database in remote signal receiving terminal to be used for storing testing result, facilitate copy and the inquiry of data.
Control module connects modules and carries out Data Collection and data analysis judgement, and to data result with detect data and preserve and be stored in the database of control module, when data walked by staff's copy, the Backup Data can given an order in delete database, but delete instruction can preserve, convenient inquiry, if the internal memory of database is less, control module sends detection data while confirmation sends testing result, then delete the data in control module, reduce internal memory and the volume of control module.
Wind power system is its power supply as the power supply unit of interruption maintenance system, wind power system connects inversed module as supply module, automatically overhauls module, communication module and control module, although but inversed module connects melt is powered by wind power system, wind power system adopts common voltage, set up separately in systems in which, avoid the damage of high voltage source to electric component.As shown in Figure 3, wind power system comprises fan blade, microgenerator, wind-powered electricity generation transducer, energy-storage units, processor and temperature detecting unit, fan blade is arranged near fusion tube, fan blade connects microgenerator, it is electric energy by Wind resource change that microgenerator connects wind-powered electricity generation transducer, wind-powered electricity generation transducer connect energy-storage units by electrical power storage in energy-storage units, energy-storage units connection handling device, the rotating shaft of processor connection control fan blade, temperature detecting unit is arranged on the temperature and the ambient temperature that are used for detecting fusion tube near fusion tube, and connect on a processor, energy-storage units connects interruption maintenance system for its power supply.
When there being wind, utilizing wind power plant, the wind energy transformation of instability is become unnecessary electric energy, be stored in energy-storage units, is interruption maintenance system power supply; When calm, if processor receives the excessive information exceeding setting threshold of temperature that temperature detecting unit detects, issue instructions to fan blade, energy-storage units drives fan blade to rotate cooling, realizes to the effect of fuse fusion tube cooling.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.The protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (9)
1. a temperature control fuse switch, it is characterized in that, described fuse comprises fuse switch, interruption maintenance system and wind power system, interruption maintenance system is arranged on the mounting bracket of fuse switch, wind power system connects interruption maintenance system and is its power supply and automatically lowers the temperature according to the surface temperature of fuse switch, interruption maintenance system starts testing when the melt power-off of fuse switch, be used for detecting the pressure that the upper contact head of fuse switch and lower contact are subject to, detect the slackness of melt.
2. temperature control fuse switch according to claim 1, it is characterized in that, described fuse switch comprises mounting bracket, porcelain piece and fusion tube, the upper end of porcelain piece is connected with cover slot, the lower end of porcelain piece is connected with undersetting, and the upper end of fusion tube has guide hook, upper contact head and operation ring, and upper contact head is flexibly connected with upper cover slot, the lower end of fusion tube has the lower contact adapted with undersetting, arranges melt in fusion tube.
3. temperature control fuse switch according to claim 1, it is characterized in that, described wind power system comprises fan blade, microgenerator, wind-powered electricity generation transducer, energy-storage units and processor, fan blade is arranged near fusion tube, fan blade connects microgenerator, it is electric energy by Wind resource change that microgenerator connects wind-powered electricity generation transducer, wind-powered electricity generation transducer connect energy-storage units by electrical power storage in energy-storage units, energy-storage units connection handling device, the rotating shaft of processor connection control fan blade, energy-storage units connects interruption maintenance system for its power supply.
4. temperature control fuse switch according to claim 3, it is characterized in that, described wind power system also comprises temperature detecting unit, temperature detecting unit is arranged on the temperature and the ambient temperature that are used for detecting fusion tube near fusion tube, and connect on a processor, temperature detection signal is sent to processor.
5. temperature control fuse switch according to claim 1, it is characterized in that, described interruption maintenance system comprises inversed module, automatically overhauls module, communication module, control module and remote signal receiving terminal, it is interruption maintenance system power supply that wind power system connects the intrasystem modules of interruption maintenance, inversed module, automatically maintenance module and communication module are connected in control module, and control module is by communication module wireless connections remote signal receiving terminal.
6. temperature control fuse switch according to claim 4, it is characterized in that, the input of described inversed module connects melt, the output link control module of inversed module, inversed module when melt has electricity output low level signal to control module, control module does not work, and inversed module exports high level signal to control module when melt has a power failure, control module is started working.
7. temperature control fuse switch according to claim 4, it is characterized in that, described automatic maintenance module comprises pressure sensing cell, Relaxation detecting unit, cut deformation detection unit, pressure sensing cell is arranged on link control module under the contact of fuse switch, Relaxation detecting unit is used for the melt slackness link control module of fuse switch, and cut deformation detection unit is used for detecting the damage of fusion tube, crackle, burn trace link control module.
8. temperature control fuse switch according to claim 4, it is characterized in that, described communication module is provided with information-processing circuit plate, and information-processing circuit plate is provided with SIM Mobile phone card, and control module is carried out wireless signal by SIM Mobile phone card and remote signal receiving terminal and is connected.
9. temperature control fuse switch according to claim 4, it is characterized in that, described control module is provided with database, database is used for storing the Output rusults of data-signal that maintenance module automatically detects and control module, the data of control module delete database after the delete instruction receiving remote signal receiving terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537596.3A CN105118759B (en) | 2015-08-26 | 2015-08-26 | Temperature control fuse switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537596.3A CN105118759B (en) | 2015-08-26 | 2015-08-26 | Temperature control fuse switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105118759A true CN105118759A (en) | 2015-12-02 |
| CN105118759B CN105118759B (en) | 2018-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510537596.3A Active CN105118759B (en) | 2015-08-26 | 2015-08-26 | Temperature control fuse switch |
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| Country | Link |
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| CN (1) | CN105118759B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185939A (en) * | 2018-10-12 | 2019-01-11 | 叶君燕 | A kind of integrated kitchen range with flue safeguard function |
| CN114264983A (en) * | 2021-12-24 | 2022-04-01 | 上海乾行达航天科技有限公司 | High-low temperature environment simulation test box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994993A (en) * | 1998-07-31 | 1999-11-30 | Flexcon Company, Inc. | Fuse indicator label |
| CN101593985A (en) * | 2008-05-30 | 2009-12-02 | 比亚迪股份有限公司 | A kind of charging device of self power generation |
| CN201812776U (en) * | 2010-10-15 | 2011-04-27 | 芜湖市凯鑫避雷器有限责任公司 | Dropping fuse |
| CN204179046U (en) * | 2014-12-01 | 2015-02-25 | 新县电业局 | Novel drop type fuse |
| CN204464223U (en) * | 2015-01-19 | 2015-07-08 | 刘业军 | Band warning indicating fuse |
-
2015
- 2015-08-26 CN CN201510537596.3A patent/CN105118759B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994993A (en) * | 1998-07-31 | 1999-11-30 | Flexcon Company, Inc. | Fuse indicator label |
| CN101593985A (en) * | 2008-05-30 | 2009-12-02 | 比亚迪股份有限公司 | A kind of charging device of self power generation |
| CN201812776U (en) * | 2010-10-15 | 2011-04-27 | 芜湖市凯鑫避雷器有限责任公司 | Dropping fuse |
| CN204179046U (en) * | 2014-12-01 | 2015-02-25 | 新县电业局 | Novel drop type fuse |
| CN204464223U (en) * | 2015-01-19 | 2015-07-08 | 刘业军 | Band warning indicating fuse |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185939A (en) * | 2018-10-12 | 2019-01-11 | 叶君燕 | A kind of integrated kitchen range with flue safeguard function |
| CN109185939B (en) * | 2018-10-12 | 2019-11-19 | 嵊州市井野机电科技有限公司 | A kind of integrated kitchen range with flue safeguard function |
| CN114264983A (en) * | 2021-12-24 | 2022-04-01 | 上海乾行达航天科技有限公司 | High-low temperature environment simulation test box |
| CN114264983B (en) * | 2021-12-24 | 2023-09-19 | 上海乾行达航天科技有限公司 | High low temperature environment simulation test case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105118759B (en) | 2018-03-20 |
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Effective date of registration: 20201203 Address after: 313000 1-C, building 1, No. 656, Qixing Road, high tech Zone, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Huzhou xinbeilian Network Technology Co.,Ltd. Address before: 241000 South Industry Zone, Changjiang Road, Anhui, Wuhu Patentee before: WUHU KAIXIN LIGHTNING ARRESTER Co.,Ltd. |
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Effective date of registration: 20240718 Address after: Building C-4, Floor 1-3, storefront 1-1-14, Xinkai Wanxiang Hardware and Electrical City, Xincheng District, Lingchuan County, Guilin City, Guangxi Zhuang Autonomous Region 541299 Patentee after: GUANGXI CANGDIAN ELECTRIC POWER TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 313000 1-C, building 1, No. 656 Qixing Road, high tech Zone, Wuxing District, Huzhou City, Zhejiang Province Patentee before: Huzhou xinbeilian Network Technology Co.,Ltd. Country or region before: China |
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