CN109065417A - A kind of high-voltage explosion fuse - Google Patents
A kind of high-voltage explosion fuse Download PDFInfo
- Publication number
- CN109065417A CN109065417A CN201810955838.4A CN201810955838A CN109065417A CN 109065417 A CN109065417 A CN 109065417A CN 201810955838 A CN201810955838 A CN 201810955838A CN 109065417 A CN109065417 A CN 109065417A
- Authority
- CN
- China
- Prior art keywords
- insulation plate
- fusion tube
- unit
- fusing
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
-
- 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
- H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
-
- 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
- H01H85/0078—Security-related arrangements
-
- 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
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
-
- 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
- H01H85/38—Means for extinguishing or suppressing arc
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Fuses (AREA)
Abstract
The invention belongs to fuse correlative technology field, specifically a kind of high-voltage explosion fuse, including support unit, connection unit and fusing unit, support unit are used to support connection unit and fusing unit；Connection unit is for assisting fusing cell operation；Fuse unit for realizing circuit fusing；Under the action of fusing unit; fusible link in connection unit can fuse; when the fusible link in the unit that fuses passes through high-tension current; fusible link can occur to fuse and generate a large amount of high temperature and high pressure gas; and the rubber stopper in the gas outlet of fusion tube side wall is washed away; high temperature and high pressure gas is overflowed from gas outlet; and fusing unit is made to work; to make fusible link fuse; and after fusible link fusing; lower insulation plate in support unit can rotate, and route is caused to fuse, and then play the role of protecting circuit.
Description
Technical field
The invention belongs to fuse correlative technology field, specifically a kind of high-voltage explosion fuse.
Background technique
Fuse be according to electric current be more than specified value for a period of time after, with its own generate heat make Melt molten, from
And circuit is disconnected, with a kind of current protector made of this principle.Fuse is widely used in high and low voltage electric distribution system
It is using one of most common protection device as the protector of short circuit and overcurrent in control system and electrical equipment.
Have the following problems in the fuse of the prior art: 1, present fuse often uses outdoors, and open air usually goes out
Existing thunder and lightning weather, such fuse holds to be damaged very much by lightning stroke；2, the fusible link of present fuse is always exposed outside,
Fusible link is exposed for a long time in this way is easy to that oxidation reaction occurs outside, so that fusible link is not durable.
Therefore, there is an urgent need to a kind of novel high-tension fuse, which can be under harsh environment outdoors just
It is often used, and fusible link can be protected.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of high-voltage explosion fuse proposed by the present invention is supported by setting
Unit supports entire circuit, convenient for fuse by normal use under the rugged environment, and is made by the way that connection unit is arranged
Fusible link is located inside fusion tube, effectively avoids fusible link oxidation by air, and fusible link fusing is realized under the action of fusing unit,
Realize the effect of protection circuit.
The technical solution adopted by the present invention to solve the technical problems is: a kind of drop type high-voltage fuse of the present invention
Device, including support unit, connection unit and fusing unit, the support unit are used to support connection unit and fusing unit；Institute
State connection unit for assist fusing cell operation；It is described fusing unit for realizing circuit fusing.When circuital current overloads
When, under the mutual synergism of support unit and connection unit, fusing unit realize high-voltage fuse function, thus to circuit into
Row protection.
The support unit includes upper insulation plate, lower insulation plate, thread bush, shaft and torsional spring, and the upper insulation plate is under
Horizontally disposed above and below insulation board, lower insulation plate is located at the underface of upper insulation plate；The thread bush is vertically installed at lower insulation plate
Upper surface on；The shaft is mounted on the left side of lower insulation plate, and torsional spring, one end of torsional spring are arranged between shaft and lower insulation plate
It is connect with shaft, the other end of torsional spring is connect with lower insulation plate.When line current overload, lower insulation plate can occur around shaft
Rotation, separates connection unit, and then realizes the protection to circuit.
The connection unit includes fusion tube, rubber stopper, lower contact, upper contact head, upper movable contact, lower movable contact and fusing
Silk, the fusion tube are connected to vertically on the upper surface of lower insulation plate, and fusion tube is located at the lower section of upper insulation plate, and fusion tube is located at thread bush
Inside, fusion tube are tubular, and the central axis of fusion tube is placed vertically, and screw thread, and the bottom of fusion tube is arranged in the bottom outer surface of fusion tube
The screw thread of portion outer surface and the internal whorl of thread bush cooperate, and the side wall of fusion tube opens up gas outlet, and gas outlet is located at screw thread
The top of set；The rubber stopper is located in gas outlet；The lower contact is mounted on the upper surface of lower insulation plate；The upper contact head
It is mounted on the bottom of upper insulation plate, lower contact and upper contact head are respectively positioned on inside fusion tube；The upper movable contact and lower movable contact
It is successively connected horizontally on fusion tube inner wall from top to bottom, lower movable contact and lower contact, upper movable contact connect with upper contact head
Touching；The fusible link is vertically arranged in the inside center of fusion tube, and the both ends of fusible link are touched with upper movable contact and lower activity respectively
The center connection of head.When work, when fusible link passes through high-tension current, fusible link can occur to fuse and generate a large amount of high temperature height
It calms the anger body, and the rubber stopper in the gas outlet of fusion tube side wall is washed away, high temperature and high pressure gas is overflowed from gas outlet, and keeps fusing single
Member works, so that fusible link be made to fuse, and then has the function that protection circuit.
The fusing unit includes No.1 bar, No. two bars, mercury telescopic rod, cylinder, No.1 pipeline, No.1 check valve, one
Number magnet and No. two magnet, the No.1 bar and No. two bars are vertically arranged between upper insulation plate and lower insulation plate, No.1 bar
It is connected to the bottom of upper insulation plate vertically, No. two bars are connected to vertically on the upper surface of lower insulation plate, at No.1 bar and No. two bars
In on same vertical direction；The mercury telescopic rod is mounted on the top of No. two bars, the top of the piston rod of mercury telescopic rod with
The bottom of No.1 bar contacts；The cylinder is mounted on the bottom of upper insulation plate, and cylinder is located at the right side of No.1 bar, and cylinder interior is logical
It crosses No.1 pipeline to communicate with the outside world, No.1 check valve is installed, the bottom of the piston rod of cylinder connects straight down on No.1 pipeline
No.1 magnet；No. two magnet is connected to vertically on the upper surface of lower insulation plate, No. two magnet be located at No.1 magnet just under
Side.When work, high temperature and high pressure gas is contacted after overflowing from gas outlet with mercury telescopic rod, and to the mercury inside mercury telescopic rod
It is heated, volume expansion after mercury is heated, the telescopic rod in mercury telescopic rod can be upward under the action of mercury volume expansion
Movement, and No.1 bar is pushed to move upwards, so that the distance between No.1 magnet and No. two magnet is made to become larger, No.1 magnet and two
Attraction between number magnet can gradually become smaller until completely disappearing, and lower insulation plate surrounds shaft hair under the effect of gravity
It is raw to rotate and fall down, and then realize the fusing of circuit.
Soft rubber is set between the top and upper insulation plate of the fusion tube, and soft rubber is located at the surrounding of upper contact head；It is soft
The cavity that matter rubber is formed with fusion tube and upper contact head is communicated with the outside world by No. two pipelines, and No. two are installed on No. two pipelines unidirectionally
Valve.Before fusion tube is contacted with upper insulation plate, under the action of No. two check valves, the air of cavity inside passes through No. two pipeline rows
Out, electric arc is generated in air after fusible link can be prevented to be powered after the air of cavity inside is extracted, and soft rubber is caused to damage
It is bad.
Sealing ring is set between the upper movable contact and lower movable contact and the inner wall of fusion tube, and sealing ring is used for upper work
It moving contact and lower is sealed between movable contact and fusion tube.When the setting of sealing ring can prevent high-tension current from fusible link being made to fuse
Generated high temperature and high pressure gas leaks, and avoids insufficient on the mercury heating in mercury telescopic rod and influences fusing effect.
Beneficial effects of the present invention are as follows:
1. the present invention supports connection unit and fusing single by upper insulation plate in setting support unit and lower insulation plate
Member, under the action of fusing unit, the fusible link in connection unit can fuse, and after fusible link fusing, in support unit
Lower insulation plate can rotate, so that entire route be caused to fuse, and then play the role of protecting circuit.
2. the present invention is by setting No. two pipelines and No. two check valves, under the action of No. two check valves, soft rubber with
The air for the cavity inside that fusion tube and upper contact head are formed can be prevented after being extracted by No. two pipeline discharges, the air of cavity inside
Fusible link generates electric arc after being powered in air, damages to soft rubber, improves the working efficiency of fuse, extends fusing
The service life of device.
3. the present invention is by being arranged the above sealing ring between movable contact and lower movable contact and the inner wall of fusion tube, sealing ring
Can to upper movable contact and it is lower be sealed between movable contact and fusion tube, it is produced when preventing high-tension current from fusible link being made to fuse
High temperature and high pressure gas leak, avoid in mercury telescopic rod mercury heating it is insufficient and influence fusing effect.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
In figure: support unit 1, upper insulation plate 11, lower insulation plate 12, thread bush 13, shaft 14, connection unit 2, fusion tube
21, rubber stopper 22, lower contact 23, upper contact head 24, upper movable contact 25, lower movable contact 26, fusible link 27, fusing unit 3, one
Number 37, No. two 31, No. two bars 32 of bar, mercury telescopic rod 33, cylinder 34, No.1 pipeline 35, No.1 check valve 36, No.1 magnet magnetic
Iron 38, the check valve 6 of pipeline 5, two of soft rubber 4, two.
Specific embodiment
It is carried out using structure of the Fig. 1 to the high-voltage explosion fuse of an embodiment of the present invention as described below.
As shown in Figure 1, a kind of high-voltage explosion fuse of the present invention, including support unit 1,2 and of connection unit
Fuse unit 3, and the support unit 1 is used to support connection unit 2 and fusing unit 3；The connection unit 2 is for assisting fusing
Unit 3 works；It is described fusing unit 3 for realizing circuit fusing.When circuital current overload, in support unit 1 and connection
Under the mutual synergism of unit 2, fusing unit 3 realizes high-voltage fuse function, to protect to circuit.
As shown in Figure 1, the support unit 1 includes upper insulation plate 11, lower insulation plate 12, thread bush 13, shaft 14 and turns round
Spring, the upper insulation plate 11 and about 12 lower insulation plate are horizontally disposed, and lower insulation plate 12 is located at the underface of upper insulation plate 11；Institute
Thread bush 13 is stated to be vertically installed on the upper surface of lower insulation plate 12；The shaft 14 is mounted on the left side of lower insulation plate 12, turns
Torsional spring is set between axis 14 and lower insulation plate 12, and one end of torsional spring is connect with shaft 14, the other end and lower insulation plate 12 of torsional spring
Connection.When line current overload, lower insulation plate 12 can be rotated around shaft 14, separate connection unit 2, in turn
Realize the protection to circuit.
As shown in Figure 1, the connection unit 2 includes fusion tube 21, rubber stopper 22, lower contact 23, upper contact head 24, upper activity touching
First 25, lower movable contact 26 and fusible link 27, the fusion tube 21 are connected to vertically on the upper surface of lower insulation plate 12, and fusion tube 21
In the lower section of upper insulation plate 11, fusion tube 21 is located inside thread bush 13, and fusion tube 21 is tubular, and the central axis of fusion tube 21 is vertical
It places, screw thread, and the inside spiral shell of the screw thread of the bottom outer surface of fusion tube 21 and thread bush 13 is arranged in the bottom outer surface of fusion tube 21
Line cooperates, and the side wall of fusion tube 21 opens up gas outlet, and gas outlet is located at the top of thread bush 13；The rubber stopper 22 is located at
In port；The lower contact 23 is mounted on the upper surface of lower insulation plate 12；The upper contact head 24 is mounted on upper insulation plate 11
Bottom, lower contact 23 and upper contact head 24 are respectively positioned on inside fusion tube 21；The upper movable contact 25 and lower movable contact 26 from up to
Under be successively connected horizontally on 21 inner wall of fusion tube, lower movable contact 26 is contacted with lower contact 23, upper movable contact 25 and upper contact head
24 contacts；The fusible link 27 is vertically arranged in the inside center of fusion tube 21, the both ends of fusible link 27 respectively with upper movable contact
25 connect with the center of lower movable contact 26.When work, when fusible link 27 passes through high-tension current, fusible link 27 can fuse
And a large amount of high temperature and high pressure gas is generated, and the rubber stopper 22 in the gas outlet of 21 side wall of fusion tube is washed away, high temperature and high pressure gas
It is overflowed from gas outlet, and fusing unit 3 is made to work, so that fusible link 27 be made to fuse, and then reach the work of protection circuit
With.
As shown in Figure 1, the fusing unit 3 includes No.1 bar 31, No. two bars 32, mercury telescopic rod 33, cylinders 34, No.1
Pipeline 35, No.1 check valve 36, No.1 magnet 37 and No. two magnet 38, the No.1 bar 31 and No. two bars 32 are vertically arranged in
Between upper insulation plate 11 and lower insulation plate 12, No.1 bar 31 is connected to the bottom of upper insulation plate 11 vertically, and No. two bars 32 connect vertically
It connects on the upper surface of lower insulation plate 12, No.1 bar 31 and No. two bars 32 are on same vertical direction；The mercury telescopic rod
33 are mounted on the top of No. two bars 32, and the top of the piston rod of mercury telescopic rod 33 is contacted with the bottom of No.1 bar 31；The gas
Cylinder 34 is mounted on the bottom of upper insulation plate 11, and cylinder 34 is located at the right side of No.1 bar 31, passes through No.1 pipeline 35 inside cylinder 34
It communicates with the outside world, No.1 check valve 36 is installed, the bottom of the piston rod of cylinder 34 connects No.1 straight down on No.1 pipeline 35
Magnet 37；No. two magnet 38 is connected to vertically on the upper surface of lower insulation plate 12, and No. two magnet 38 are located at No.1 magnet 37
Underface.When work, high temperature and high pressure gas is contacted after overflowing from gas outlet with mercury telescopic rod 33, and to mercury telescopic rod 33
Internal mercury is heated, volume expansion after mercury is heated, and the telescopic rod in mercury telescopic rod 33 is in mercury volume expansion
Can be moved upwards under effect, and No.1 bar 31 be pushed to move upwards, thus make between No.1 magnet 37 and No. two magnet 38 away from
From becoming larger, the attraction between No.1 magnet 37 and No. two magnet 38 can be gradually become smaller until completely disappearing, and lower insulation plate 12 exists
It rotates and falls down around shaft 14 under the action of self gravity, and then realize the fusing of circuit.
As shown in Figure 1, soft rubber 4 is arranged between the top and upper insulation plate 11 of the fusion tube 21, soft rubber 4 is located at
The surrounding of upper contact head 24；The cavity that soft rubber 4 is formed with fusion tube 21 and upper contact head 24 is communicated with the outside world by No. two pipelines 5,
No. two check valves 6 are installed on No. two pipelines 5.Before fusion tube 21 is contacted with upper insulation plate 11, in the effect of No. two check valves 6
Under, the air of cavity inside is discharged by No. two pipelines 5, the air of cavity inside fusible link can be prevented to be powered after being extracted after
Electric arc is generated in air, and soft rubber 4 is damaged.
As shown in Figure 1, sealing ring is set between the upper movable contact 25 and lower movable contact 26 and the inner wall of fusion tube 21,
Sealing ring between upper movable contact 25 and lower movable contact 26 and fusion tube 21 for being sealed.The setting of sealing ring can prevent
High-tension current makes generated high temperature and high pressure gas when the fusing of fusible link 27 leak, and avoids adding the mercury in mercury telescopic rod 33
Heat is insufficient and influences fusing effect.
The course of work: when work, when fusible link 27 passes through high-tension current, fusible link 27 can occur to fuse and generate a large amount of
High temperature and high pressure gas, and the rubber stopper 22 in the gas outlet of 21 side wall of fusion tube is washed away, high temperature and high pressure gas overflows from gas outlet
Out.
High temperature and high pressure gas after spilling is contacted with mercury telescopic rod 33, and is carried out to the mercury inside mercury telescopic rod 33
It heats, volume expansion after mercury is heated, telescopic rod and piston meeting under the action of mercury volume expansion in mercury telescopic rod 33
It moves upwards, and No.1 bar 31 is pushed to move upwards, so that the distance between No.1 magnet 37 and No. two magnet 38 is made to become larger, one
Attraction number between magnet 37 and No. two magnet 38 can gradually become smaller until completely disappearing, at this point, lower insulation plate 12 is at itself
It rotates and falls down around shaft 14 under the action of gravity, and then realize the fusing of circuit.
Industrial applicibility
According to the present invention, which can will make fusible link fuse in the case where electric current is excessive,
And then circuit is protected, so that this high-voltage explosion fuse is useful in fuse correlative technology field.
Claims (6)
1. a kind of high-voltage explosion fuse, it is characterised in that: including support unit (1), connection unit (2) and fusing unit
(3), the support unit (1) is used to support connection unit (2) and fusing unit (3)；The connection unit (2) is for assisting melting
Disconnected unit (3) work；It is described fusing unit (3) for realizing circuit fusing.
2. a kind of high-voltage explosion fuse according to claim 1, it is characterised in that: the support unit (1) includes
Upper insulation plate (11), lower insulation plate (12), thread bush (13), shaft (14) and torsional spring, the upper insulation plate (11) and lower insulation
Plate (12) is horizontally disposed up and down, and lower insulation plate (12) is located at the underface of upper insulation plate (11)；The thread bush (13) is pacified vertically
On the upper surface of lower insulation plate (12)；The shaft (14) is mounted on the left side of lower insulation plate (12), and shaft (14) is under
Torsional spring is set between insulation board (12), and one end of torsional spring is connect with shaft (14), and the other end of torsional spring and lower insulation plate (12) are even
It connects.
3. a kind of high-voltage explosion fuse according to claim 2, it is characterised in that: the connection unit (2) includes
Fusion tube (21), rubber stopper (22), lower contact (23), upper contact head (24), upper movable contact (25), lower movable contact (26) and fusing
Silk (27), the fusion tube (21) are connected to vertically on the upper surface of lower insulation plate (12), and fusion tube (21) is located at upper insulation plate (11)
Lower section, fusion tube (21) is located at that thread bush (13) is internal, and fusion tube (21) is tubular, and the central axis of fusion tube (21) is put vertically
It sets, the bottom outer surface of fusion tube (21) is arranged screw thread, and the screw thread of the bottom outer surface of fusion tube (21) and thread bush (13) is interior
Portion's screw thread cooperates, and the side wall of fusion tube (21) opens up gas outlet, and gas outlet is located at the top of thread bush (13)；The rubber stopper
(22) it is located in gas outlet；The lower contact (23) is mounted on the upper surface of lower insulation plate (12)；Upper contact head (24) peace
Mounted in the bottom of upper insulation plate (11), lower contact (23) and upper contact head (24) are respectively positioned on fusion tube (21) inside；The upper activity touching
Head (25) and lower movable contact (26) are successively connected horizontally on from top to bottom on fusion tube (21) inner wall, and lower movable contact (26) is under
Contact (23) contact, upper movable contact (25) contact with upper contact head (24)；The fusible link (27) is vertically arranged in fusion tube (21)
Inside center, the both ends of fusible link (27) are connect with the center of upper movable contact (25) and lower movable contact (26) respectively.
4. a kind of high-voltage explosion fuse according to claim 2, it is characterised in that: the fusing unit (3) includes
No.1 bar (31), No. two bars (32), mercury telescopic rod (33), cylinder (34), No.1 pipeline (35), No.1 check valve (36), one
Number magnet (37) and No. two magnet (38), the No.1 bar (31) and No. two bars (32) be vertically arranged in upper insulation plate (11) with
Between lower insulation plate (12), No.1 bar (31) is connected to the bottom of upper insulation plate (11) vertically, and No. two bars (32) are connected to vertically
On the upper surface of lower insulation plate (12), No.1 bar (31) and No. two bars (32) are on same vertical direction；The mercury is flexible
Bar (33) is mounted on the top of No. two bars (32), and the top of the piston rod of mercury telescopic rod (33) and the bottom of No.1 bar (31) connect
Touching；The cylinder (34) is mounted on the bottom of upper insulation plate (11), and cylinder (34) is located at the right side of No.1 bar (31), cylinder (34)
Inside is communicated with the outside world by No.1 pipeline (35), installs No.1 check valve (36) on No.1 pipeline (35), the work of cylinder (34)
The bottom of stopper rod connects No.1 magnet (37) straight down；No. two magnet (38) is connected to the upper of lower insulation plate (12) vertically
On surface, No. two magnet (38) are located at the underface of No.1 magnet (37).
5. a kind of high-voltage explosion fuse according to claim 2 or 3, it is characterised in that: the top of the fusion tube (21)
Soft rubber (4) are set between portion and upper insulation plate (11), soft rubber (4) is located at the surrounding of upper contact head (24)；Soft rubber
(4) cavity formed with fusion tube (21) and upper contact head (24) is communicated with the outside world by No. two pipelines (5), is pacified on No. two pipelines (5)
Fill No. two check valves (6).
6. a kind of high-voltage explosion fuse according to claim 3, it is characterised in that: the upper movable contact (25) and
Sealing ring is set between lower movable contact (26) and the inner wall of fusion tube (21), and sealing ring is used for upper movable contact (25) and lower work
It is sealed between moving contact (26) and fusion tube (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955838.4A CN109065417A (en) | 2018-08-21 | 2018-08-21 | A kind of high-voltage explosion fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955838.4A CN109065417A (en) | 2018-08-21 | 2018-08-21 | A kind of high-voltage explosion fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109065417A true CN109065417A (en) | 2018-12-21 |
Family
ID=64686710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810955838.4A Withdrawn CN109065417A (en) | 2018-08-21 | 2018-08-21 | A kind of high-voltage explosion fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109065417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853994A (en) * | 2019-11-28 | 2020-02-28 | 曹文保 | Repeatedly usable's continuous disconnected formula fuse |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205810742U (en) * | 2016-06-15 | 2016-12-14 | 刘昌学 | The passive auxiliary monitoring system of position signalling of fuse switch |
| CN106571279A (en) * | 2016-11-11 | 2017-04-19 | 国家电网公司 | Drop-out fuse |
| CN206619572U (en) * | 2017-04-27 | 2017-11-07 | 国网冀北电力有限公司唐山供电公司 | A kind of 10kV drop out fuse with magnetic force locking device |
-
2018
- 2018-08-21 CN CN201810955838.4A patent/CN109065417A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205810742U (en) * | 2016-06-15 | 2016-12-14 | 刘昌学 | The passive auxiliary monitoring system of position signalling of fuse switch |
| CN106571279A (en) * | 2016-11-11 | 2017-04-19 | 国家电网公司 | Drop-out fuse |
| CN206619572U (en) * | 2017-04-27 | 2017-11-07 | 国网冀北电力有限公司唐山供电公司 | A kind of 10kV drop out fuse with magnetic force locking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853994A (en) * | 2019-11-28 | 2020-02-28 | 曹文保 | Repeatedly usable's continuous disconnected formula fuse |
| CN110853994B (en) * | 2019-11-28 | 2021-12-28 | 浦江利浩电子科技有限公司 | Repeatedly usable's continuous disconnected formula fuse |
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Application publication date: 20181221 |