CN108648974B - Fusing method of drop-out fuse - Google Patents
Fusing method of drop-out fuse Download PDFInfo
- Publication number
- CN108648974B CN108648974B CN201810742019.1A CN201810742019A CN108648974B CN 108648974 B CN108648974 B CN 108648974B CN 201810742019 A CN201810742019 A CN 201810742019A CN 108648974 B CN108648974 B CN 108648974B
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- metal
- metal disc
- air outlet
- fuse
- insulating shell
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- 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
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- 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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
- H01H85/175—Casings characterised by the casing shape or form
-
- 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
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- Fuses (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a drop-out fuse, comprising: the upper end and the lower end of the insulating shell respectively extend horizontally to form an upper support rod and a lower support rod, a rotating shaft is supported between the upper support rod and the lower support rod, a plurality of blades are arranged on the rotating shaft, and the rotating shaft also drives a wind driven generator; the fuse wire comprises a first metal disc, a second metal disc and a fuse wire, wherein the first metal disc and the second metal disc are arranged inside an insulating shell at intervals in parallel, the insulating shell is divided into a first accommodating space, a second accommodating space and a third accommodating space from top to bottom, a guide rod is vertically arranged in the third accommodating space, a metal sliding block is arranged on the guide rod in a sliding mode, one end of the fuse wire is fixed at the center of the first metal disc, the other end of the fuse wire penetrates through a through hole in the center of the second metal disc to be fixed with the metal sliding block, and the fuse wire is in a tensioning state so that the metal sliding block is tightly attached to the lower surface of the. The invention can utilize wind energy to supply power and can avoid the corrosion of the electric connection part and the interference of wind, rain, ice, frost and snow.
Description
The invention is a divisional application of a patent with the application number of 2016112085781 and the application date of 2016, 12 and 23, and named as a drop-out fuse.
Technical Field
The invention relates to the technical related field of power distribution equipment. More particularly, the present invention relates to a drop out fuse.
Background
The fuse is a device that fuses a fuse element by heat generated by itself to open a circuit when a current exceeds a predetermined value. At present, most of fuses used for domestic distribution lines are non-closed fuses. Such a device has the advantage of a simple construction. However, since the live parts such as the moving and static contacts and the connecting terminals are exposed, the live parts are easily corroded and damaged, and lapping discharge of foreign matters such as branches, iron wires and small animals is easily caused. More seriously, in wind, rain, ice, frost and snow weather, the exposed electric connection part is easy to be short-circuited or have ground fault, and the performance of the spring is reduced, so that the fusion tube automatically falls off. Therefore, it is desirable to design a closed drop-out fuse that is not affected by climate change.
Disclosure of Invention
The invention also aims to provide the drop-out fuse, which seals the power connection part in the insulating shell to avoid corrosion and interference of wind, rain, ice, frost and snow.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a drop out fuse including:
the wind driven generator comprises an insulating shell, a wind driven generator and a power supply, wherein the insulating shell is a vertically arranged hollow cylindrical structure, an upper support rod and a lower support rod horizontally extend from the upper end and the lower end of the insulating shell respectively, a rotating shaft is supported between the upper support rod and the lower support rod, a plurality of blades are arranged on the rotating shaft, the rotating shaft further drives the wind driven generator, and the wind driven generator is electrically connected to a storage battery arranged in the insulating shell;
the fuse wire comprises a first metal disc, a second metal disc and a fuse wire, wherein the first metal disc and the second metal disc are arranged inside an insulating shell at intervals in parallel, the insulating shell is divided into a first accommodating space, a second accommodating space and a third accommodating space from top to bottom, a first wiring port and a second wiring port are respectively formed in positions, corresponding to the first metal disc and the second metal disc, on the side wall of the insulating shell and used for connecting the first metal disc and the second metal disc into a working circuit through wiring, a guide rod is vertically arranged in the third accommodating space, a metal sliding block is slidably arranged on the guide rod, one end of the fuse wire is fixed at the center of the first metal disc, the other end of the fuse wire penetrates through a through hole in the center of the second metal disc and is fixed with the metal sliding block, and the fuse wire is in a tensioning state, so that the metal sliding block is tightly attached to the lower surface of the second metal disc;
the first accommodating space is internally provided with a fan and an electric heating wire, the fan and the electric heating wire are electrically connected to the storage battery, the electric heating wire is positioned in the air outlet direction of the fan, a plurality of groups of first air outlet holes are annularly arranged on the first metal disc around the center, the air outlet direction of each group of first air outlet holes forms a certain angle with the vertical downward direction and faces the side wall of the insulating shell, and the included angle between the air outlet direction of each group of first air outlet holes and the vertical downward direction is sequentially increased from the center to the periphery;
the second metal disc is provided with a plurality of groups of second air outlet holes in a surrounding manner around the center, each second air outlet hole does not vertically correspond to any position of the first air outlet hole, the air outlet direction of each group of second air outlet holes forms a certain angle with the vertical downward direction and faces the side wall of the insulating shell, and the included angle between the air outlet direction of each group of second air outlet holes and the vertical downward direction is sequentially increased from the center to the periphery;
the metal sliding block is further horizontally connected with an indicating plate, a strip-shaped hole is vertically formed in the side wall of the third accommodating space, and the indicating plate extends out of the insulating shell through the strip-shaped hole.
Preferably, the drop-out fuse further includes:
the flashing lamp and the loudspeaker are arranged on the top of the insulating shell;
the infrared sensor is arranged in the third accommodating space and used for sending out an induction signal after the infrared sensor senses that the metal sliding block slides downwards;
and the controller is used for enabling the flashing lamp to flash after receiving the sensing signal of the infrared sensor and enabling the loudspeaker to sound.
Preferably, the drop-out fuse further includes:
and the temperature sensor is arranged in the second accommodating space, is also connected with the controller and sends a temperature signal to the controller in real time, when the temperature sensor detects that the temperature inside the insulating shell is higher than a first preset value, the controller enables the fan to be started, and when the temperature sensor detects that the temperature inside the insulating shell is lower than a second preset value, the controller enables the fan and the heating wire to be started simultaneously.
Preferably, the drop-out fuse is provided with an opening on the side wall of the second accommodating space, and transparent plastic is embedded in the opening.
Preferably, the surface of the indicating plate of the drop-out fuse is provided with a reflective layer.
Preferably, the blades of the drop-out fuse are spirally wound on the rotating shaft, each blade forms a complete spiral, and the width of each blade is 1/3 of the distance between the upper support rod and the lower support rod.
Preferably, in the drop-out fuse, the largest included angle between the air outlet direction of each group of first air outlet holes and the vertical downward direction is 75 degrees, and the smallest included angle is 45 degrees; the largest included angle between the air outlet direction of each group of second air outlet holes and the vertical downward direction is 75 degrees, and the smallest included angle is 60 degrees.
The invention at least comprises the following beneficial effects:
(1) the drop-out fuse of the invention seals the electric connection parts, such as the first metal disc, the second metal disc and the fuse wire, in the insulating shell, so that the electric connection parts can not be corroded or interfered by wind, rain, ice, frost and snow weather to cause the phenomenon of false drop, and the electric connection parts can not be discharged due to the lap joint of foreign matters such as branches, iron wires and small animals.
(2) The fan and the heating wire are arranged in the insulating shell, so that the inside of the insulating shell can be radiated and heated according to needs, and the damage of an electric connection part due to overheating or overcooling is avoided, so that the drop-out fuse loses the function of cutting off a circuit.
(3) The indicating plate of the invention has different positions before and after the fuse wire is fused, can clearly display whether the fuse wire is fused or not, and is convenient for maintenance personnel to maintain.
(4) The invention utilizes wind energy to supply power for elements such as the fan, the heating wire, the loudspeaker, the flashing lamp, the temperature sensor and the like, does not need to replace the battery regularly and is very convenient.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a drop-out fuse according to the present invention.
Fig. 2 is a schematic structural diagram of a first metal disc according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present invention provides a drop-out fuse including:
the insulation shell 1 is a vertically arranged hollow cylindrical structure, an upper support rod 11 and a lower support rod 14 horizontally extend from the upper end and the lower end of the insulation shell 1 respectively, a rotating shaft 13 is supported between the upper support rod 11 and the lower support rod 14, a plurality of blades 12 are arranged on the rotating shaft 13, the rotating shaft 13 also drives a wind driven generator, and the wind driven generator 17 is electrically connected to a storage battery arranged in the insulation shell 1;
the insulation shell comprises a first metal disc 2, a second metal disc 3 and a fuse 4, wherein the first metal disc 2 and the second metal disc 3 are arranged inside the insulation shell 1 at a parallel interval and divide the inside of the insulation shell 1 into a first accommodating space, a second accommodating space and a third accommodating space from top to bottom, a first wiring port and a second wiring port are respectively arranged at positions on the side wall of the insulation shell 1 corresponding to the first metal disc 2 and the second metal disc 3 and are used for connecting the first metal disc 2 and the second metal disc 3 into a working circuit through wiring, a guide rod is vertically arranged in the third accommodating space and is provided with a metal sliding block 5 in a sliding manner, one end of the fuse 4 is fixed at the center of the first metal disc 2, and the other end of the fuse passes through hole at the center of the second metal disc 3 and is fixed with the metal sliding block 5, the fuse 4 is in a tensioned state, so that the metal sliding block 5 is tightly attached to the lower surface of the second metal disc 3;
a fan 15 and a heating wire 16 are arranged in the first accommodating space, the fan 15 and the heating wire 16 are both electrically connected to the storage battery, the heating wire 16 is located in the air outlet direction of the fan 15, a plurality of groups of first air outlet holes 21 are annularly arranged on the first metal disc 2 around the center, the air outlet direction of each group of first air outlet holes 21 forms a certain angle with the vertical downward direction and faces the side wall of the insulating shell 1, and the included angle between the air outlet direction of each group of first air outlet holes 21 and the vertical downward direction is sequentially increased from the center to the periphery;
a plurality of groups of second air outlet holes are annularly arranged on the second metal disc 3 around the center, each second air outlet hole does not vertically correspond to any position of the first air outlet hole 21, the air outlet direction of each group of second air outlet holes forms a certain angle with the vertical downward direction and faces the side wall of the insulating shell 1, and the included angle between the air outlet direction of each group of second air outlet holes and the vertical downward direction is sequentially increased from the center to the periphery;
still horizontally connect with an indicator plate 51 on the metal slider 5, the vertical bar hole of having seted up on the lateral wall of third accommodation space, indicator plate 51 is followed the bar hole stretches out insulating housing 1.
In the above technical solution, the upper end and the lower end of the insulating housing 1 respectively extend out of the upper support rod 11 and the lower support rod 14, a rotating shaft 13 is supported between the upper support rod 11 and the lower support rod 14, the rotating shaft 13 can rotate between the upper support rod 11 and the lower support rod 14, the rotating shaft 13 is provided with the blade 12, the blade 12 drives the rotating shaft 13 to rotate under the action of wind power, and then drives the wind power generator to generate electricity, and the structure of the wind power generator 17 is the same as that of the wind power generator in the prior art. The electric energy generated by the wind power generator is further stored in the storage battery. The first metal disc 2 and the second metal disc 3 are equivalent to static contacts of the existing drop-out fuse and are respectively used for being connected with two joints of a working circuit, the fuse 4 is a common fuse 4 in the prior art, one end of the fuse 4 is electrically connected with the first metal disc 2, the other end of the fuse 4 is electrically connected with a metal sliding block 5, the metal sliding block 5 has certain weight, the fuse 4 is tensioned downwards, and the surface of the metal sliding block 5 is tightly attached to the second metal disc 3. When the fuse 4 is not fused, the metal slider 5 is tightly attached to the second metal disc 3, so that the first metal disc 2 and the second metal disc 3 can be electrically conducted, and further an operating circuit is electrically conducted, and after the fuse 4 is fused, the metal slider 5 loses the tensile force of the fuse 4, moves downwards along the guide rail 52, and is separated from the second metal disc 3, so that the operating circuit is cut off. In order to improve the recognition degree of the fuse 4 during fusing, the metal sliding block 5 is further connected with an indicating plate 51, the indicating plate 51 penetrates out of the insulating shell 1 from the strip-shaped hole and can move up and down in the strip-shaped hole along with the metal sliding block 5, the indicating plate 51 is higher when the fuse 4 is not fused, and the metal sliding block 5 brings the indicating plate 51 to a lower position after the fuse 4 is fused, so that the fused drop-out fuse 4 can be easily found by a maintenance worker, and the drop-out fuse is not required to be checked one by the maintenance worker. In order to make this application be more suitable for ice, snow, frost weather, set up fan 15 and heating wire 16 in the first accommodation space of insulating casing 1 to produce hot-air and heat up insulating casing 1 inside, prevent that insulating casing 1 outside from freezing or snow, and prevent to connect the icing or frosting of electric position, and make this application can not work. In order to heat the inside and the surface of the insulating casing 1 more uniformly by the fan 15 and the heating wire 16, a plurality of groups of first air outlet holes 21 are arranged on the first metal disc 2, each group of first air outlet holes 21 are distributed in an annular shape, the distance between each group of first air outlet holes 21 is equal, and the included angle between the air outlet direction of each air outlet hole of each group of first air outlet holes 21 and the vertical downward direction is equal, for example, fig. 2 shows three groups of first air outlet holes 21, and the distance between the three groups of air outlet holes is equal. The air-out direction of first exhaust vent 21 all faces insulating housing 1's lateral wall, and like this, hot-air can remove to insulating housing 1's lateral wall, and by the center of first metal disc 2 to all around moreover, the contained angle of first exhaust vent 21 and vertical downward direction increases in proper order, and the second exhaust vent is similar with this at the mode that sets up of second metal disc 3, and only the second exhaust vent does not correspond from top to bottom with first exhaust vent 21's position. Through the arrangement, compared with the mode that the air outlet directions of the first air outlet 21 and the second air outlet are both vertically downward, hot air can more uniformly move from the upper part of the insulating shell 1 to the lower part of the insulating shell 1, the action time of the hot air on the side wall close to the insulating shell 1 can be longer, and the hot air is not concentrated on the part close to the fuse 4 to damage the fuse 4.
In another embodiment, the drop-out fuse further includes:
a flashing light 6 and a loudspeaker 7 which are arranged on the top of the insulating shell 1;
the infrared sensor is arranged in the third accommodating space and used for sending out a sensing signal after the infrared sensor senses that the metal slide block 5 slides downwards;
and the controller is used for enabling the flashing lamp 6 to flash after receiving the sensing signal of the infrared sensor and enabling the loudspeaker 7 to sound.
Here, in order to further improve the recognition degree of fusing of the fuse 4, the top of the insulating housing 1 is provided with the flashing lamp 6 and the loudspeaker 7, and both are powered by the storage battery, the insulating housing 1 is also internally provided with the infrared sensor for detecting the position of the metal slider 5, when the infrared sensor detects that the metal slider 5 is not at the initial position, even if the metal slider is flickered and the loudspeaker 7 is sounded, the fuse is easier to be known by maintenance personnel to be fused, and the fuse can be conveniently used at night.
In another embodiment, the drop-out fuse further includes:
and the temperature sensor is arranged in the second accommodating space, is also connected with the controller and sends a temperature signal to the controller in real time, when the temperature sensor detects that the temperature inside the insulating shell 1 is higher than a first preset value, the controller enables the fan 15 to be started, and when the temperature sensor detects that the temperature inside the insulating shell 1 is lower than a second preset value, the controller enables the fan 15 and the heating wire 16 to be started simultaneously.
Here, a technical solution for warming and cooling the present invention is provided, when the temperature is higher than a first preset value, the fan 15 is turned on to dissipate heat, and when the temperature is lower than a second preset value, the fan 15 and the heating wire 16 are turned on to warm the inside of the insulating housing 1, so as to prevent snow accumulated outside or ice and frost accumulated inside the insulating housing 1, for example, the first preset value is 50 ℃, and the second preset value is-1 ℃.
In another embodiment, the drop-out fuse is provided with an opening on a side wall of the second accommodating space, and transparent plastic is embedded in the opening. Transparent plastic's setting is convenient for the staff and is followed 1 outside observation shell condition of insulating housing, judges whether equipment operates normally.
In another embodiment of the drop-out fuse, the surface of the indicating plate 51 is provided with a reflective layer. The reflector layer improves the identification degree of the indicator board 51, so that maintenance personnel can judge the height of the indicator board 51 from a distance and further judge whether the fuse 4 is fused.
In another embodiment of the drop-out fuse, the blades 12 are spirally wound on the rotating shaft 13, each blade 12 forms a complete spiral, and the width of each blade 12 is 1/3 of the distance between the upper support rod 11 and the lower support rod 14. There is provided a preferred shape of the blades 12, that is, a spiral shape, each blade 12 rotates around the rotation shaft 13, and the width of the blade 12 is 1/3 of the distance between the upper support bar 11 and the lower support bar 14, so that the damage caused by the excessive wind pressure of the present invention is reduced while ensuring that the blade 12 can drive the wind power generator to generate electricity, when the width of the blade 12 exceeds 1/3 of the distance between the upper support bar 11 and the lower support bar 14, the wind pressure of the blade 12 is also significantly increased, and when the width of the blade 12 is less than 1/3 of the distance between the upper support bar 11 and the lower support bar 14, the utilization rate of the wind energy is too low.
In another embodiment, in the drop-out fuse, the largest included angle between the air outlet direction of each group of the first air outlet holes 21 and the vertical downward direction is 75 degrees, and the smallest included angle is 45 degrees; the largest included angle between the air outlet direction of each group of second air outlet holes and the vertical downward direction is 75 degrees, and the smallest included angle is 60 degrees. Here, a preferred arrangement of the first air outlet 21 and the second air outlet is provided, in which the hot air has a better and more uniform heating effect on the side wall and the interior of the insulating housing 1, and at the same time does not overheat the fuse 4.
Claims (5)
1. A method for fusing a drop-out fuse comprises a first metal disc, a second metal disc, a fuse wire, a metal slider and a guide rail, and is characterized in that the method comprises the steps that one end of the fuse wire is electrically connected with the first metal disc, the other end of the fuse wire is electrically connected with the metal slider, the metal slider has certain weight, the fuse wire is tensioned downwards, the surface of the metal slider is tightly attached to the second metal disc, when the fuse wire is not fused, the metal slider is tightly attached to the second metal disc, the first metal disc and the second metal disc can be electrically conducted, and further a working circuit is electrically conducted, and after the fuse wire is fused, the metal slider loses the tensile force of the fuse wire, moves downwards along the guide rail and is separated from the second metal disc, so that the working circuit is cut off; the drop-out fuse further comprises an insulating shell, an upper support rod and a lower support rod, wherein the insulating shell is of a vertically arranged hollow cylindrical structure, the upper end of the insulating shell horizontally extends out of the upper support rod, the lower end of the insulating shell horizontally extends out of the lower support rod, a rotating shaft is supported between the upper support rod and the lower support rod, a plurality of blades are arranged on the rotating shaft, the rotating shaft further drives a wind driven generator, and the wind driven generator is electrically connected to a storage battery arranged in the insulating shell; the first metal disc and the second metal disc are arranged in the insulating shell in parallel at intervals, and divide the inside of the insulating shell into a first accommodating space, a second accommodating space and a third accommodating space from top to bottom;
the drop-out fuse further comprises a fan and a heating wire, the fan and the heating wire are arranged in the first accommodating space, the fan and the heating wire are both electrically connected to the storage battery, and the heating wire is located in the air outlet direction of the fan;
the first metal disc is provided with a plurality of groups of first air outlet holes in a surrounding mode around the center, the air outlet direction of each group of first air outlet holes forms a certain angle with the vertical downward direction and faces the side wall of the insulating shell, the included angle between the air outlet direction of each group of first air outlet holes and the vertical downward direction is sequentially increased from the center to the periphery, the second metal disc is provided with a plurality of groups of second air outlet holes in a surrounding mode around the center, each second air outlet hole does not vertically correspond to the position of any first air outlet hole, the air outlet direction of each group of second air outlet holes forms a certain angle with the vertical downward direction and faces the side wall of the insulating shell, and the included angle between the air outlet direction of each group of second air outlet holes and the vertical downward direction is sequentially increased from the center to the periphery;
still horizontally connect with an indicator plate on the metal slider, the vertical bar hole of having seted up on the lateral wall of third accommodation space, the indicator plate is followed the bar hole stretches out insulating housing.
2. The method as claimed in claim 1, wherein a first wiring port and a second wiring port are respectively formed in the side wall of the insulating housing at positions corresponding to the first metal disc and the second metal disc, and the first metal disc and the second metal disc are connected to a working circuit through wiring.
3. A method as claimed in claim 1, wherein a guide rod is vertically disposed in the third space, and a metal slider is slidably disposed on the guide rod.
4. A method as claimed in claim 1, wherein one end of the fuse is fixed to the center of the first metal disk, and the other end of the fuse passes through a through hole in the center of the second metal disk and is fixed to the metal slider, and the fuse is under tension so that the metal slider is closely attached to the lower surface of the second metal disk.
5. A method as claimed in claim 1, wherein an opening is formed in a sidewall of the second receiving space, the opening is filled with transparent plastic, and a reflective layer is formed on a surface of the indicating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742019.1A CN108648974B (en) | 2016-12-23 | 2016-12-23 | Fusing method of drop-out fuse |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208578.1A CN106601571B (en) | 2016-12-23 | 2016-12-23 | Fuse switch |
| CN201810742019.1A CN108648974B (en) | 2016-12-23 | 2016-12-23 | Fusing method of drop-out fuse |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208578.1A Division CN106601571B (en) | 2016-12-23 | 2016-12-23 | Fuse switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108648974A CN108648974A (en) | 2018-10-12 |
| CN108648974B true CN108648974B (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810742019.1A Active CN108648974B (en) | 2016-12-23 | 2016-12-23 | Fusing method of drop-out fuse |
| CN201611208578.1A Active CN106601571B (en) | 2016-12-23 | 2016-12-23 | Fuse switch |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208578.1A Active CN106601571B (en) | 2016-12-23 | 2016-12-23 | Fuse switch |
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| CN (2) | CN108648974B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511293B (en) * | 2018-05-28 | 2019-09-06 | 乐清市智格电子科技有限公司 | A kind of fuse explosion-protection equipment |
| CN109461616A (en) * | 2018-09-26 | 2019-03-12 | 河南长征电气有限公司 | A kind of high-pressure vacuum breaker that stability is high |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US805509A (en) * | 1904-06-13 | 1905-11-28 | Willes P Wright | Electric cut-out. |
| US5119060A (en) * | 1991-01-23 | 1992-06-02 | Cooper Power Systems, Inc. | Dropout expulsion fuse |
| CN100454469C (en) * | 2006-12-28 | 2009-01-21 | 王芹 | Falling fuse |
| CN201285747Y (en) * | 2008-09-25 | 2009-08-05 | 潍坊供电公司 | Fuse |
| CN101728135B (en) * | 2008-10-24 | 2012-01-11 | 方太命 | Numerical control alarm drop-out fuse for preventing freezing rain |
| CN202855687U (en) * | 2012-09-20 | 2013-04-03 | 保定供电公司 | Fuse sagging device of drop type fuse |
| CN203707062U (en) * | 2013-12-01 | 2014-07-09 | 国家电网公司 | Novel drop-out fuse |
| CN104616943A (en) * | 2015-02-15 | 2015-05-13 | 福建骐航实业有限公司 | Outdoor falling type fuse protector with automatic deicing device |
| CN205282430U (en) * | 2015-12-30 | 2016-06-01 | 国网湖北省电力公司武汉市汉南区供电公司 | Drop -out fuse |
| CN205645736U (en) * | 2016-05-24 | 2016-10-12 | 厦门理工学院 | Fuse for drop out fuse |
-
2016
- 2016-12-23 CN CN201810742019.1A patent/CN108648974B/en active Active
- 2016-12-23 CN CN201611208578.1A patent/CN106601571B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108648974A (en) | 2018-10-12 |
| CN106601571B (en) | 2018-09-25 |
| CN106601571A (en) | 2017-04-26 |
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