CN107516885A - A kind of anti-arc surge protection device of double separation and its application - Google Patents
A kind of anti-arc surge protection device of double separation and its application Download PDFInfo
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- CN107516885A CN107516885A CN201710840886.4A CN201710840886A CN107516885A CN 107516885 A CN107516885 A CN 107516885A CN 201710840886 A CN201710840886 A CN 201710840886A CN 107516885 A CN107516885 A CN 107516885A
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- electrode
- arc
- chute
- flash guard
- separation
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- 238000000926 separation method Methods 0.000 title claims abstract description 68
- 238000010891 electric arc Methods 0.000 claims abstract description 19
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000035882 stress Effects 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 6
- 230000008016 vaporization Effects 0.000 claims description 5
- 238000009834 vaporization Methods 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002322 conducting polymer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 230000001629 suppression Effects 0.000 abstract description 2
- 230000001012 protector Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 206010042255 Struck by lightning Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/22—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage of short duration, e.g. lightning
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/041—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature additionally responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
Landscapes
- Fuses (AREA)
Abstract
The invention discloses a kind of anti-arc surge protection device of double separation and its application, including inner casing, enclosing cover, preventing arc component, voltage-sensitive component, electrode lead-out pins, responding to switch component；Described inner casing is provided with two electrode holes and one piece of division board；Described division board both sides are respectively equipped with chute, and inner casing both sides are provided with the chute corresponding with the chute on division board；Described preventing arc component includes four flexible members and two flash guards；Described responding to switch component includes two separation electrodes, temperature-sensitive element, first electrode and second electrode.The present invention is used for instantaneous overvoltage overcurrent in suppression circuit, when voltage-sensitive component hinder for some reason short circuit duration it is heating up when, responding to switch component responds make the action ejection separation of preventing arc component, prevent electric arc caused by switch ejection separation from forming the short circuit overload that electrical breakdown triggers, disaster hidden-trouble is efficiently avoid, prevents electronic equipment from damaging.
Description
Technical field
The present invention relates to a kind of circuit protection device, more particularly to a kind of anti-arc surge protection device of double separation and its
Using.
Background technology
Surge protector is also known as arrester, and referred to as (SPD) is applied to exchange 50/60HZ, the power supply of rated voltage to 380V
In system or communication system, the surge to indirect thunder and lightning and direct effects of lightning or other instantaneous overvoltages is protected, and is applied to
Home dwelling, the tertiary industry and industrial circle.Surge protection has relative phase, relatively, with respect to center line, center line over the ground and its
The protected modes such as combination.Surge protector (Surge protection Device) is indispensable in electronic equipment lightning protection
A kind of few device, past are frequently referred to " arrester " or " overvoltage protection device " English and are abbreviated as SPD.The effect of surge protector
Be scurry into power line, the instantaneous overvoltage of signal transmssion line is limited in the voltage range that equipment or system can bear, or
Powerful lightning current aerial drainage is entered into ground, protects protected equipment or system not to be hit and damage.The type of surge protector
It is different by different purposes with structure, but it should at least include a non-linear voltage restriction element.For surge protection
The basic component of device has：Discharging gap, gas-discharge tube, piezo-resistance, suppression diode and choking-winding etc..Existing one
The trip positions of the releasing structure of part surge protector are single, if releasing structure breaks down, leakage current can increase, and
Cause shielding failure, leakage current increase results even in power supply short circuit and caught fire, and consequence is hardly imaginable.
As China Patent No. be CN201310392659.1 disclose a kind of high shock tolerance surge protection device, belong to surge
Protector technical field.The present invention includes shell, the box being placed in shell, the overvoltage being made up of at least one overvoltage element
Component, trip gear and the electric conductor of connection power network for being disconnected by protection circuit loop, the voltage device are located at box
In, the first overvoltage element pin and the second overvoltage element pin are equipped with each overvoltage element, wherein the second mistake
Voltage component pin is directly connected with electric conductor, and the first overvoltage element pin is connected by trip gear with another electric conductor.
The invention will can be separated with power-supply system caused by electric arc elongate, and cooled down, avoiding can not effectively and power-supply system
Separation causes security incident.
And for example China Patent No. is a kind of High-security surge protection device disclosed in CN201310123306.1, including outer
Shell, at least one overvoltage protection element in shell, for by overvoltage protection element and AC or DC circuit or
The release unit of equipment separation, produced for extinguishing in overvoltage protection element and AC or DC circuit or equipment separation process
The arc-control device and box body of raw electric arc.Release unit is made up of stage clip, metal clips, sliding block and flexible conductor；Arc-control device is by going out
Arc grid group, the first arc striking piece, the second arc striking piece, moving block and torsion spring composition；Moving block is bar blocks, its one end end set
There is electric arc reflecting plate, its other end end set has mounting hole, and it is provided with spark chamber, arc extinguishing grid pieces at electric arc reflecting plate
Group is arranged in the arc-chutes that the box body and shell surround, one end of the first arc striking piece be connected with the left end of arc extinguishing grid pieces group or
Close, one end of the second arc striking piece and the right-hand member of arc extinguishing grid pieces group are connected or adjacent to.
This just needs a dual fail-safe, the surge protection device of better performances, to ensure the normal use of electronic equipment.
The content of the invention
The defects of it is an object of the invention to exist for above-mentioned surge protection device and deficiency, there is provided a kind of double separation
Anti-arc surge protection device and its application.
To achieve the above object, the present invention is achieved by the following technical solutions.
A kind of anti-arc surge protection device of double separation, including housing, preventing arc component, voltage-sensitive component, electrode draw
Go out pin, responding to switch component；Described housing includes inner casing and enclosing cover；Described inner casing is closed-in construction；Described inner casing and
Enclosing cover is combined by way of lock, when inner casing is engaged with enclosing cover by way of lock, forms two closed cavities；It is described
Two closed cavities be respectively the first cavity and the second cavity；Described voltage-sensitive component is placed in the second cavity；It is described
Inner casing be provided with two electrode holes and one piece of division board；First cavity is divided into two enclosed compartments by described division board；
Two described enclosed compartments are respectively the first compartment and the second compartment, and division board both sides are respectively equipped with chute；Described is interior
Shell both sides are provided with the chute corresponding with the chute of division board both sides, form two corresponding chute groups；Described chute group
Respectively the first chute group and the second chute group；Described preventing arc component includes four flexible members and two flash guards；It is described
Two flash guards be respectively the first flash guard and the second flash guard；Described voltage-sensitive component includes more than one voltage
Sensing element；Described responding to switch component includes two separation electrodes, temperature-sensitive element, first electrode and second electrode；It is described
Separation electrode by movable separating end, fusing insurance and electrode connecting end form；Described movable separating end is provided with two wing arms.
The placed cavity of separation electrode is provided with inside described flash guard；The front end of flash guard is provided with the stretching of electrode connecting end
Hole；The both sides of flash guard are additionally provided with the spacing slideway of wing arm；Described flash guard is additionally provided with the screens groove of anti-arc guard and anti-arc guard.
Described voltage sensitive element tow sides are respectively equipped with metal electrode film；Described first electrode is located at wherein one
On individual metal electrode film, described second electrode is located on another metal electrode film；Described first electrode, second electrode point
Do not extended by two electrode holes from the second cavity in the first cavity；Described first electrode, second electrode are respectively equipped with one
Jack；When the front end of the first described flash guard touches with first electrode, or the front end of the second described flash guard and the second electricity
When pole touches, the position of described jack is corresponding with the position for stretching out hole.
The front end of described chute is provided with baffle plate, neck；Described baffle plate is nested in neck.On the inside of described chute also
The passage put in provided with wing arm.
Described the first flash guard, the first chute group are located in the first compartment；Described the second flash guard, the second chute group
In the second compartment；Described flexible member is socketed in chute respectively；Described separation electrode is placed in the placement of flash guard
Intracavitary, the wing arm of movable separating end stretches out spacing slideway, while wing arm puts in chute and passage, then inclined with one end of flexible member
Put；The other end of flexible member is biased by baffle plate；Electrode connecting end stretches out from stretching hole, jack respectively；Described electrode connection
Welded with jack by temperature-sensitive element at end.
Described electrode lead-out pins include first electrode leading foot and second electrode leading foot；Described inner casing both sides are also set
There are first electrode leading foot through hole and second electrode leading foot through hole, first electrode leading foot passes through first electrode leading foot through hole
Outside is extended from inner housing inner, second electrode leading foot extends outside by second electrode leading foot through hole from inner housing inner, from
And form two external pins；Described first electrode leading foot, second electrode leading foot are anti-by flexible conductor and first respectively
The movable separating end of separation electrode in arc device, the second flash guard forms circuit connection.
As the further explanation of the present invention, described temperature-sensitive element is meltable metal alloy solder or conducting polymer
Thing.
As the further explanation of the present invention, described fusing insurance is a kind of metal alloy material of instant vaporization after fusing
Material.
As the further explanation of the present invention, described voltage sensitive element is piezoresistor type sensing element, discharge tube
Any one in formula sensing element, discharging gap formula sensing element.
As the further explanation of the present invention, the preferred stage clip of described flexible member, but can also design using extension spring generation
Replace.
A kind of application of the anti-arc surge protection device of described double separation is as follows：
When being worked in the power supply system using surge protection device, two external pins are connected to phase line and the neutral conductor
Or on ground wire；The first described flash guard is located in the first compartment；The second described flash guard is located in the second compartment；Described
Flexible member is socketed in chute respectively；Described separation electrode is placed in the placed cavity of flash guard, the wing arm of movable separating end
Spacing slideway is stretched out, meanwhile, wing arm puts in chute and one end of flexible member biases, and described movable separating end and fusing are insured
It is hidden in flash guard, when the front end of the first described flash guard touches with first electrode, the front end of the second described flash guard
When being touched with second electrode, described electrode connecting end stretches out jack and stretches out hole, then electric with first respectively by temperature-sensitive element
Pole, second electrode soldering form circuit connection；Described first electrode leading foot passes through point in flexible conductor and the first flash guard
Movable separating end from electrode forms circuit connection；Described second electrode leading foot passes through in flexible conductor and the second flash guard
The movable separating end for separating electrode forms circuit connection；Now, responding to switch component connected with voltage-sensitive component to be formed it is normally closed
Working condition, spring is by stress, as surge protection device normal operating conditions.
When voltage sensitive element, voltage-sensitive is first caused by leakage current caused by short-circuit overload current or its shelf-life aging
When part is heating up, this temperature is delivered in first electrode or second electrode, promotes temperature-sensitive element to reach preset fusing temperature
Spend and melt；Movable separating end is under the elastic stress effect of flexible member, by the rapid bullet of electrode connecting end before electric arc produces
It is emitted back towards in the first flash guard or the second flash guard, the temperature-sensitive element of fusing on electrode connecting end is extended hole and struck off, and promotes
First electrode separates with electrode connecting end or second electrode separates with electrode connecting end；Between first electrode and electrode connecting end,
Or the dielectric strength of abundance is formed between second electrode and electrode connecting end；Meanwhile described the first flash guard or the second preventing arc
Device is transported by the stress of the wing arm of movable separating end with movable separating end to the direction away from first electrode, second electrode
It is dynamic；Separation electrode and the electrical connection of first electrode or second electrode are thoroughly completely cut off；Prevent electric arc shape caused by ejection separation
Trigger short circuit overload into electrical breakdown；Now, the working condition of responding to switch component by it is normally closed be changed into it is normally opened.
When by the instantaneous voltage or excessive electric current of the anti-arc surge protection device of double separation, fusing insurance thereon
At once fusing vaporization causes movable separating end and electrode connecting end to separate, while movable separating end is by the elastic stress of flexible member
Act on the wing arm by movable separating end to the direction ejection away from electrode connecting end, the first described flash guard or the second flash guard
Stress move to away from the direction of electrode connecting end with movable separating end；Wherein movable separating end is hidden in flash guard
In, in this way, forming the dielectric strength of abundance between electrode connecting end and movable separating end, thoroughly prevent electric arc caused by disjunction
Form electrical breakdown；Now, the working condition of responding to switch component by it is normally closed be changed into it is normally opened.
Compared with prior art, the beneficial effect that the present invention possesses：
1st, the present invention designs multiple disconnection dispersal points, can fully ensure that when device section failure, may be used also
To play a protective role, security performance is high.
2nd, flash guard of the invention and separation electrode design depart from into linkage type, can not produced also in electric arc with moment disjunction
The dielectric strength of effect is just had been formed with when raw, thoroughly prevents electric arc from producing.
3rd, the anti-arc surge protection device of double separation of the invention has what overvoltage short circuit overload moment ejection departed from
Defencive function and ejection of heated temperature rise moment detachment function.
4th, flash guard of the invention is provided with anti-arc guard, keeps away arc positive effect, reasonable in design, simple in construction, securely and reliably.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of the second electrode disengaged position of the present invention；
Fig. 2 is the perspective section schematic diagram of the second electrode disengaged position of the present invention；
Fig. 3 is the structural representation of the inner casing of the present invention；
Fig. 4 is the voltage-sensitive component of the present invention and the assembly structure diagram of metal electrode film；
Fig. 5 is the structural representation of the flash guard of the present invention；
Fig. 6 is the structural representation of the separation electrode of the present invention；
Fig. 7 is the separation electrode of the present invention and the assembly structure diagram of flash guard；
Fig. 8 is the structural representation of the electrode lead-out pins of the present invention；
Fig. 9 is the structural representation of the enclosing cover of the present invention.
Reference：1st, inner casing, 11, electrode hole, 12, through hole, 13, division board, 14, chute, 14a, neck, 15, passage,
1a, the first compartment, 1b, the second compartment, 2, flash guard, 2a, the first flash guard, 2b, the second flash guard, 21, stretch out hole, 22, limit
Position slideway, 23, anti-arc guard, 24, screens groove, 3, separation electrode, 3a, movable separating end, 3a1, wing arm, 3b, fusing insurance, 3c,
Electrode connecting end, 4, metal electrode film, 41, first electrode, 42 second electrodes；4a, jack, 5, electrode lead-out pins, 5a, the first electricity
Pole leading foot, 5b, second electrode leading foot, 6, flexible member, 7, voltage sensitive element, 8, enclosing cover.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and detailed description, but protection scope of the present invention
It is not only limited to following preferred embodiment；The present invention is used as implementation by stage clip of the flexible member of surge protection device
Example, is described in detail to the structure of surge protection device of the present invention.
Embodiment 1：
A kind of anti-arc surge protection device of double separation, including housing, preventing arc component, voltage-sensitive component, electrode draw
Go out pin 5, responding to switch component；Described housing includes inner casing 1 and enclosing cover 8；Described inner casing 1 is closed-in construction；Described is interior
Shell 1 and enclosing cover 8 are combined by way of lock, when inner casing 1 is engaged with enclosing cover 8 by way of lock, form two closings
Cavity；Two described closed cavities are respectively the first cavity and the second cavity；Described voltage-sensitive component is placed in the second chamber
In vivo；Described inner casing 1 is provided with two electrode holes 11 and one piece of division board 13；Described division board 13 divides the first cavity
Into two enclosed compartments；Two described enclosed compartments are respectively the first compartment 1a and the second compartment 1b, and the both sides of division board 13
It is respectively equipped with chute 14；The described both sides of inner casing 1 are provided with the chute 14 corresponding with the chute 14 of the both sides of division board 13, form two
Individual 14 groups corresponding of chute；14 groups described of chute is respectively the first chute group and the second chute group；Described chute 14 divides
She You not baffle plate and neck 14a corresponding with baffle plate；Described preventing arc component includes four flexible members 6 and two flash guards 2；
Two described flash guards 2 are respectively the first flash guard 2a and the second flash guard 2b；Described voltage-sensitive component includes two
Voltage sensitive element 7；Described responding to switch component includes two separation electrodes 3, temperature-sensitive element, the electricity of first electrode 41 and second
Pole 42；Described separation electrode 3 is made up of movable separating end 3a, fusing insurance 3b and electrode connecting end 3c；Described activity point
Two wing arm 3a1 are provided with from end 3a.
The described inside of flash guard 2 is provided with the placed cavity of separation electrode 3；The front end of flash guard 2 is provided with electrode connecting end 3c
Stretching hole 21；The both sides of flash guard 2 are additionally provided with wing arm 3a1 spacing slideway 22；Described flash guard 2 is additionally provided with anti-arc guard 23
And the screens groove 24 of anti-arc guard 23.
The described tow sides of voltage sensitive element 7 are respectively equipped with metal electrode film 4；Described first electrode 41 is located at it
In on a metal electrode film 4, described second electrode 42 is located on another metal electrode film 4；Described first electrode 41,
Second electrode 42 is extended in the first cavity by two electrode holes 11 from the second cavity respectively；Described first electrode 41, second
Electrode 42 is respectively equipped with a jack 4a；When the front end of the first described flash guard 2a touches with first electrode 41, or it is described
When second flash guard 2b front end touches with second electrode 42, described jack 4a position is relative with the position for stretching out hole 21
Should.
The front end of described chute 14 is provided with baffle plate, neck 14a；Described baffle plate is nested in neck 14a.Described cunning
Wing arm 3a1 is additionally provided with the inside of groove 14 puts in passage 15.
Described the first flash guard 2a, the first chute group are located in the first compartment 1a；Described the second flash guard 2b, second
Chute group is located in the second compartment 1b；Described flexible member 6 is socketed in chute 14 respectively；Described separation electrode 3 is placed in
In the placed cavity of flash guard 2, movable separating end 3a wing arm 3a1 stretches out spacing slideway 22, while wing arm 3a1 puts in the He of chute 14
Passage 15, then biased with one end of flexible member 6；The other end of flexible member 6 is biased by baffle plate；Electrode connecting end 3c respectively from
Stretch out hole 21, jack 4a stretches out；Described electrode connecting end 3c and jack 4a is welded by temperature-sensitive element.
Described electrode lead-out pins 5 include first electrode leading foot 5a and second electrode leading foot 5b；1 liang of described inner casing
Side is additionally provided with first electrode leading foot 5a and second electrode leading foot 5b through hole 12, first electrode leading foot 5a, second electrode
Leading foot 5b extends outside by through hole 12 inside inner casing 1 respectively, so as to form two external pins；Described first electrode
Leading foot 5a, second electrode leading foot 5b pass through the separation electricity in flexible conductor and the first flash guard 2a, the second flash guard 2b respectively
The movable separating end 3a of pole 3 forms circuit connection.
Described temperature-sensitive element is meltable metal alloy solder.Described fusing insurance 3b is moment vapour after a kind of fusing
The metal alloy compositions of change.Described voltage sensitive element 7 is piezoresistor type sensing element.Described flexible member 6 is pressure
Spring.
When being worked in the power supply system using surge protection device, two external pins are connected to phase line and the neutral conductor
Or on ground wire；The first described flash guard 2a is located in the first compartment 1a；The second described flash guard 2b is located at the second compartment 1b
It is interior；Described flexible member 6 is socketed in chute 14 respectively；Described separation electrode 3 is placed in the placed cavity of flash guard 2, living
Dynamic separating end 3a wing arm 3a1 stretches out spacing slideway 22, meanwhile, one end that wing arm 3a1 puts in chute 14 and flexible member 6 is inclined
Put, described movable separating end 3a and fusing insurance 3b be hidden in flash guard 2, when the first described flash guard 2a front end with
First electrode 41 touches, when front end and the second electrode 42 of the second described flash guard 2b touch, described electrode connecting end 3c
Stretch out jack 4a and stretch out hole 21, then circuit is formed with first electrode 41, the soldering of second electrode 42 respectively by temperature-sensitive element and connected
Connect；The movable separating end 3a that described first electrode leading foot 5a passes through the separation electrode 3 in flexible conductor and the first flash guard 2a
Form circuit connection；The work that described second electrode leading foot 5b passes through the separation electrode 3 in flexible conductor and the second flash guard 2b
Dynamic separating end 3a forms circuit connection；Now, responding to switch component connects to form normally closed working condition, bullet with voltage-sensitive component
Spring is by stress, as surge protection device normal operating conditions.
Embodiment 2：
A kind of another embodiment of the anti-arc surge protection device of double separation of the present invention.The embodiment have with
Most of component similar structure and usage, the main distinction are in embodiment 1：
Described temperature-sensitive element is meltable conducting polymer；Described voltage-sensitive component includes a voltage-sensitive member
Part 7；Described voltage sensitive element 7 is electric discharge tubular type sensing element.
When voltage sensitive element 7, voltage-sensitive is first caused by leakage current caused by short-circuit overload current or its shelf-life aging
When part 7 is heating up, this temperature is delivered in first electrode 41, is promoted temperature-sensitive element to reach preset fusion temperature and is melted
Change；Movable separating end 3a launches rapidly electrode connecting end 3c before electric arc produces under the elastic stress effect of flexible member 6
Return in the first flash guard 2a, the temperature-sensitive element of fusing on electrode connecting end 3c is extended hole 21 and struck off, and promotes first electrode
41 separate with electrode connecting end 3c；The dielectric strength of abundance is formed between first electrode 41 and electrode connecting end 3c；It is meanwhile described
The first flash guard 2a by movable separating end 3a wing arm 3a1 stress as movable separating end 3a is to away from first electrode
41 direction motion；Separation electrode 3 and the electrical connection of first electrode 41 are thoroughly completely cut off；Prevent electric arc caused by ejection separation
Form electrical breakdown and trigger short circuit overload；Now, the working condition of responding to switch component by it is normally closed be changed into it is normally opened.
Embodiment 3：
A kind of another embodiment of the anti-arc surge protection device of double separation of the present invention.The embodiment have with
Most of component similar structure and usage, the main distinction are in embodiment 1：
Described voltage sensitive element 7 is discharging gap formula sensing element.
Described flexible member 6 is stage clip.
When by the instantaneous voltage or excessive electric current of the anti-arc surge protection device of double separation, fusing insurance thereon
The 3b vaporizations that fuse at once cause movable separating end 3a and electrode connecting end 3c to separate, while movable separating end 3a is by flexible member 6
Elastic stress act on and being launched to the direction away from electrode connecting end 3c, the first described flash guard 2a is by movable separating end 3a's
Wing arm 3a1 stress is moved with movable separating end 3a to the direction away from electrode connecting end 3c；Wherein movable separating end
3a is hidden in flash guard 2, in this way, forming the dielectric strength of abundance between electrode connecting end 3c and movable separating end 3a, thoroughly
Prevent electric arc caused by disjunction from forming electrical breakdown；Now, the working condition of responding to switch component by it is normally closed be changed into it is normally opened.
Embodiment 4：
A kind of another embodiment of the anti-arc surge protection device of double separation of the present invention.The embodiment have with
Most of component similar structure and usage, the main distinction are in embodiment 1：
When voltage sensitive element 7, voltage-sensitive is first caused by leakage current caused by short-circuit overload current or its shelf-life aging
When part 7 is heating up, this temperature is delivered in second electrode 42, is promoted temperature-sensitive element to reach preset fusion temperature and is melted
Change；Movable separating end 3a launches rapidly electrode connecting end 3c before electric arc produces under the elastic stress effect of flexible member 6
Return in the second flash guard 2b, the temperature-sensitive element of fusing on electrode connecting end 3c is extended hole 21 and struck off, and promotes second electrode
42 separate with electrode connecting end 3c；The dielectric strength of abundance is formed between second electrode 42 and electrode connecting end 3c；It is meanwhile described
The second flash guard 2b by movable separating end 3a wing arm 3a1 stress as movable separating end 3a is to away from second electrode
42 direction motion；Separation electrode 3 and the electrical connection of second electrode 42 are thoroughly completely cut off；Prevent electric arc caused by ejection separation
Form electrical breakdown and trigger short circuit overload；Now, the working condition of responding to switch component by it is normally closed be changed into it is normally opened.
Embodiment 5：
A kind of another embodiment of the anti-arc surge protection device of double separation of the present invention.The embodiment have with
Most of component similar structure and usage, the main distinction are in embodiment 1：
When by the instantaneous voltage or excessive electric current of the anti-arc surge protection device of double separation, fusing insurance thereon
The 3b vaporizations that fuse at once cause movable separating end 3a and electrode connecting end 3c to separate, while movable separating end 3a is by flexible member 6
Elastic stress act on and being launched to the direction away from electrode connecting end 3c, the second described flash guard 2b is by movable separating end 3a's
Wing arm 3a1 stress is moved with movable separating end 3a to the direction away from electrode connecting end 3c；Wherein movable separating end
3a is hidden in flash guard 2, in this way, forming the dielectric strength of abundance between electrode connecting end 3c and movable separating end 3a, thoroughly
Prevent electric arc caused by disjunction from forming electrical breakdown；Now, the working condition of responding to switch component by it is normally closed be changed into it is normally opened.
Claims (10)
1. a kind of anti-arc surge protection device of double separation, including housing, preventing arc component, voltage-sensitive component, electrode are drawn
Pin (5), responding to switch component；Described housing includes inner casing (1) and enclosing cover (8)；Described inner casing (1) is closed-in construction；Institute
The inner casing (1) and enclosing cover (8) stated are combined by way of lock, when inner casing (1) is engaged with enclosing cover (8) by way of lock
When, form two closed cavities；Two described closed cavities are respectively the first cavity and the second cavity；Described voltage-sensitive
Component is placed in the second cavity；It is characterized in that：Described inner casing (1) is provided with two electrode holes (11) and one piece of division board
(13)；First cavity is divided into two enclosed compartments by described division board (13)；Two described enclosed compartments are respectively
One compartment (1a) and the second compartment (1b), and division board (13) both sides are respectively equipped with chute (14)；Described inner casing (1) both sides are set
There is the chute (14) corresponding with the chute (14) of division board (13) both sides, form two corresponding chute (14) groups；It is described
Chute (14) group be respectively the first chute group and the second chute (14) group；Described preventing arc component includes four flexible members
And two flash guards (2) (6)；Two described flash guards (2) are respectively the first flash guard (2a) and the second flash guard (2b)；Institute
The voltage-sensitive component stated includes more than one voltage sensitive element (7)；Described responding to switch component includes two separation
Electrode (3), temperature-sensitive element, first electrode (41) and second electrode (42)；Described separation electrode (3) is by movable separating end
(3a), fusing insurance (3b) and electrode connecting end (3c) composition；Described movable separating end (3a) is provided with two wing arms (3a1).
A kind of 2. anti-arc surge protection device of double separation according to claim 1, it is characterised in that：Described preventing arc
The placed cavity of separation electrode (3) is provided with inside device (2)；The front end of flash guard (2) is provided with the stretching hole of electrode connecting end (3c)
(21)；The both sides of flash guard (2) are additionally provided with the spacing slideway (22) of wing arm (3a1)；Described flash guard (2) is additionally provided with anti-arc guard
(23) and anti-arc guard (23) screens groove (24).
A kind of 3. anti-arc surge protection device of double separation according to claim 1, it is characterised in that：Described chute
(14) front end is provided with baffle plate, neck (14a)；Described baffle plate is nested in neck (14a)；The wing is additionally provided with the inside of chute (14)
The passage (15) that arm (3a1) is put in.
A kind of 4. anti-arc surge protection device of double separation according to claim 1, it is characterised in that：Described voltage
Sensing element (7) tow sides are respectively equipped with metal electrode film (4)；Described first electrode (41) is located at one of metal electricity
On pole piece (4), described second electrode (42) is located on another metal electrode film (4)；Described first electrode (41), second
Electrode (42) is extended in the first cavity by two electrode holes (11) from the second cavity respectively；Described first electrode (41),
Two electrodes (42) are respectively equipped with a jack (4a)；Front end and first electrode (41) phase when described the first flash guard (2a)
Touch, or when the front end of described the second flash guard (2b) and second electrode (42) touch, the position of described jack (4a) is with stretching
Portal (21) position it is corresponding.
A kind of 5. anti-arc surge protection device of double separation according to claim 1, it is characterised in that：Described first
Flash guard (2a), the first chute group are located in the first compartment (1a)；Described the second flash guard (2b), the second chute (14) group position
In the second compartment (1b)；Described flexible member (6) is socketed in chute (14) respectively；Described separation electrode (3) is placed in
In the placed cavity of flash guard (2), the wing arm (3a1) of movable separating end (3a) stretches out spacing slideway (22), while wing arm (3a1) is stretched
Enter chute (14) and passage (15), then biased with one end of flexible member (6)；The other end of flexible member (6) is biased by baffle plate；
Electrode connecting end (3c) stretches out from stretching hole (21), jack (4a) respectively；Described electrode connecting end (3c) is logical with jack (4a)
Cross temperature-sensitive element welding.
A kind of 6. anti-arc surge protection device of double separation according to claim 1, it is characterised in that：Described electrode
Leading foot (5) includes first electrode leading foot (5a) and second electrode leading foot (5b)；Described inner casing (1) both sides are additionally provided with
The through hole (12) of one electrode lead-out pins (5a) and second electrode leading foot (5b), first electrode leading foot (5a), second electrode are drawn
Go out pin (5b) and outside is extended inside inner casing (1) by through hole (12) respectively, so as to form two external pins；Described first
Electrode lead-out pins (5a) are connected by flexible conductor with the movable separating end (3a) of the separation electrode (3) in the first flash guard (2a)；
The movable separating end that described second electrode leading foot (5b) passes through the separation electrode (3) in flexible conductor and the second flash guard (2b)
(3a) is connected.
A kind of 7. anti-arc surge protection device of double separation according to claim 1, it is characterised in that：Described temperature-sensitive
Element is meltable metal alloy solder or conducting polymer；Described fusing insurance (3b) is instant vaporization after a kind of fusing
Metal alloy compositions；Described voltage sensitive element (7) is piezoresistor type sensing element, electric discharge tubular type sensing element, electric discharge
Any one in clearance-type sensing element.
8. a kind of application of the anti-arc surge protection device of double separation according to any one of claims 1 to 7, its feature exist
In：When being worked in the power supply system using surge protection device, two external pins are connected to phase line and the neutral conductor or ground
On line；Described the first flash guard (2a) is located in the first compartment (1a)；Described the second flash guard (2b) is located at the second compartment
In (1b)；Described flexible member (6) is socketed in chute (14) respectively；Described separation electrode (3) is placed in flash guard (2)
In placed cavity, the wing arm (3a1) of movable separating end (3a) stretches out spacing slideway (22), meanwhile, wing arm (3a1) puts in chute (14)
Being biased with one end of flexible member (6), described movable separating end (3a) and fusing insurance (3b) are hidden in flash guard (2),
When the front end of described the first flash guard (2a) touches with first electrode (41), the front end of described the second flash guard (2b) and the
When two electrodes (42) touch, described electrode connecting end (3c) stretches out jack (4a) and stretches out hole (21), then passes through temperature-sensitive element
Form circuit with first electrode (41), second electrode (42) soldering respectively and be connected；Described first electrode leading foot (5a) passes through
Flexible conductor forms circuit with the movable separating end (3a) of the separation electrode (3) in the first flash guard (2a) and is connected；Described second
Electrode lead-out pins (5b) form electricity by the movable separating end (3a) of the separation electrode (3) in flexible conductor and the second flash guard (2b)
Road connects；Now, responding to switch component connects to form normally closed working condition with voltage-sensitive component, and spring is by stress, i.e.,
For surge protection device normal operating conditions.
A kind of 9. application of the anti-arc surge protection device of double separation according to claim 7, it is characterised in that：Work as electricity
Pressure-sensitive sensing unit (7) voltage sensitive element (7) caused by leakage current caused by short-circuit overload current or its shelf-life aging generates heat
During heating, this temperature is delivered in first electrode (41) or second electrode (42), promotes temperature-sensitive element to reach preset fusing
Temperature and melt；Movable separating end (3a) connects electrode before electric arc produces under the elastic stress effect of flexible member (6)
End (3c) is rapid launch back the first flash guard (2a) or the second flash guard (2b) is interior, the heat of the fusing on electrode connecting end (3c)
Quick element is extended hole (21) and struck off, promote first electrode (41) separated with electrode connecting end (3c) or second electrode (42) with
Electrode connecting end (3c) separates；Between first electrode (41) and electrode connecting end (3c) or second electrode (42) is connected with electrode
The dielectric strength of abundance is formed between end (3c)；Meanwhile described the first flash guard (2a) or the second flash guard (2b) are by activity
The stress of the wing arm (3a1) of separating end (3a) is as movable separating end (3a) is to away from first electrode (41), second electrode
(42) direction motion；Separation electrode (3) and the electrical connection of first electrode (41) or second electrode (42) are thoroughly completely cut off；Prevent
Electric arc caused by ejection separation forms electrical breakdown and triggers short circuit overload；Now, the working condition of responding to switch component is by normally closed
It is changed into normally opened.
A kind of 10. application of the anti-arc surge protection device of double separation according to claim 7, it is characterised in that：When
During by the instantaneous voltage or excessive electric current of the anti-arc surge protection device of double separation, fusing insurance (3b) thereon is melted at once
Cutting steam causes movable separating end (3a) and electrode connecting end (3c) to separate, while movable separating end (3a) is by flexible member (6)
Elastic stress act on and being launched to the direction away from electrode connecting end (3c), described the first flash guard (2a) or the second flash guard
(2b) by the wing arm (3a1) of movable separating end (3a) stress as movable separating end (3a) is to away from electrode connecting end
The direction motion of (3c)；Wherein movable separating end (3a) is hidden in flash guard (2), in this way, electrode connecting end (3c) and activity
The dielectric strength of abundance is formed between separating end (3a), thoroughly prevents electric arc caused by disjunction from forming electrical breakdown；Now, respond
The working condition of switch module by it is normally closed be changed into it is normally opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710840886.4A CN107516885A (en) | 2017-09-18 | 2017-09-18 | A kind of anti-arc surge protection device of double separation and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710840886.4A CN107516885A (en) | 2017-09-18 | 2017-09-18 | A kind of anti-arc surge protection device of double separation and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107516885A true CN107516885A (en) | 2017-12-26 |
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ID=60725536
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710840886.4A Pending CN107516885A (en) | 2017-09-18 | 2017-09-18 | A kind of anti-arc surge protection device of double separation and its application |
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| CN (1) | CN107516885A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057163A1 (en) * | 2019-09-29 | 2021-04-01 | 厦门赛尔特电子有限公司 | Surge protection device having high breaking capacity |
| CN119994824A (en) * | 2025-04-10 | 2025-05-13 | 深圳市来吉智能科技有限公司 | A circuit emergency protection device and method thereof |
-
2017
- 2017-09-18 CN CN201710840886.4A patent/CN107516885A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057163A1 (en) * | 2019-09-29 | 2021-04-01 | 厦门赛尔特电子有限公司 | Surge protection device having high breaking capacity |
| US11742656B2 (en) | 2019-09-29 | 2023-08-29 | Xiamen Set Electronics Co., Ltd. | Surge protection device with high breaking capacity |
| CN119994824A (en) * | 2025-04-10 | 2025-05-13 | 深圳市来吉智能科技有限公司 | A circuit emergency protection device and method thereof |
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Application publication date: 20171226 |