CN104810814B - A kind of big through-flow surge protector - Google Patents
A kind of big through-flow surge protector Download PDFInfo
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- CN104810814B CN104810814B CN201510224964.9A CN201510224964A CN104810814B CN 104810814 B CN104810814 B CN 104810814B CN 201510224964 A CN201510224964 A CN 201510224964A CN 104810814 B CN104810814 B CN 104810814B
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Abstract
The present invention discloses a kind of big through-flow surge protector; including pedestal and the surge protection module being plugged on pedestal; the surge protection module includes stent, overvoltage restriction element; first, second conductive contact is housed on stent; overvoltage restriction element is connected equipped with first electrode and the first conductive contact and forms electrical connection, and overvoltage restriction element sets that there are two second electrodes on its opposite two outer surface；A dropout rotating turret is being respectively provided at two second electrodes, dropout rotating turret is pivotally connected on the bracket, elastic component there are one dresses between each dropout rotating turret and the stent, and be connected a conduct piece on each dropout rotating turret；Second conductive contact is set there are two conductive extension；The conduct piece distinguishes one second electrode of adhesion and a conductive extension by two sides and hot melt alloy-layer；It is preferred that the elastic component is tension spring；The present invention can bear larger surge current, and compact-sized, small, and maintainability is good.
Description
Technical field
The present invention relates to surge protector, especially a kind of big through-flow surge protector.
Background technology
Surge protector is a kind of overvoltage control device in electronic equipment, and the past is also referred to as " overvoltage protection device ".Electricity
The effect of surge protector is the instantaneous overvoltage for scurrying into power line, signal transmssion line to be limited in equipment or system can bear
Enter ground in voltage range or by powerful lightning current aerial drainage, protected equipment or system is protected not to be hit and damage.
The structure of existing a part of surge protector is divided into two parts, and a part is pedestal, and another part is protected for surge
Protect module, surge protection module and pedestal realize that plug-in is connect, set on pedestal there are two conductor terminal and electronic equipment
Circuit electrical connection, set that there are two electrical contact and two conductor terminals on the pedestal companies of contact respectively on surge protection module
It connects, after overvoltage restriction element long-play aging on surge protection module, leakage current can increase, and need electricity at this time
It gushes protection module and realizes trip action, leakage current circuit in overvoltage restriction element is disconnected, led to prevent the increase of stopping leak leakage current
Cause power supply short circuit.It needs replacing and repairs after realizing trip action due to surge protection module, protected in this way using plug-in surge
Shield module can realize quick-replaceable, and maintainability is preferable, to ensure the normal use of electronic equipment.
But the surge protector of existing plug-in can be born since small volume, particularly thickness are restricted
Surge current it is smaller, be typically only capable to bear the ability of below 80KA surge currents, have been unable to meet requirement and bear bigger surge
The needs of the electronic equipment of electric current.
Invention content
The technical problem to be solved in the present invention is to provide a kind of big through-flow surge protectors, can bear larger surge
Electric current, and it is compact-sized, small, maintainability is good.
In order to achieve the above objectives, the technical scheme is that：A kind of big through-flow surge protector, including pedestal, electricity
Protection module is gushed, being conductively connected terminal and second equipped with first be electrically isolated from each other on pedestal is conductively connected terminal, the surge
Protection module includes stent, overvoltage restriction element, and the first conductive contact and the second conductive contact are housed on stent, and first is conductive
One end of contact is plugged on described first and is conductively connected on terminal, and one end of the second conductive contact is plugged on second conduction even
On connecting terminal, the overvoltage restriction element be equipped with first electrode be connected the first conductive contact the other end and form electrical connection,
Overvoltage restriction element is additionally provided with two second electrodes on its opposite two outer surface；At two second electrodes
A dropout rotating turret is respectively provided with, dropout rotating turret is pivotally connected on the bracket, between each dropout rotating turret and the stent
Dress is there are one elastic component to drive dropout rotating turret to rotate, and be connected a conduct piece on each dropout rotating turret；Described second is conductive
The other end of contact is set there are two conductive extension；One side of the conduct piece is by heating described in alloy-layer adhesion one
Second electrode, another side of the conduct piece is by heating one conductive extension of alloy-layer adhesion.
It is further improved, first conductive contact, which with described first is conductively connected terminal and plugs the cross section of one end, is
W types, described first be conductively connected on terminal set there are two with the matched grafting through-hole of first conductive contact；Described second
Conductive contact is conductively connected terminal with described second and plugs the cross section of one end as W types, and described second is conductively connected on terminal
If there are two with the matched grafting through-hole of second conductive contact.Electric current is conductive by the first conductive contact and second in this way
Clamping force, which will be generated, during the W type contact ends of contact is conductively connected terminal and described second to increase with described first and is conductively connected
Big through-flow plug-in structure is furthermore achieved in termination contact pressure.
It is preferred that the elastic component is tension spring, the hot melt alloy-layer is lead-free tin cream layer.
It is preferred that the overvoltage restriction element includes two varistors, insulating layer shape is coated on the outside of two varistors
Into a blocks, the first electrode is arranged on the side of the blocks, and two second electrodes are arranged on the blocks
On two opposing end surfaces, one end of two varistors is connected on the first electrode and forms electrical connection together, and two are pressed
The other end of quick resistance is respectively fixedly connected in two second electrodes and forms electrical connection.
It is further improved, the side of the dropout rotating turret far from the first conductive contact is equipped with a limiting indication end, the limit
The rotation of the dropout rotating turret is limited described in position instruction end in contact during blocks.It can both have been protected by the limiting indication end described
Dropout rotating turret also can indicate which kind of working condition the dropout rotating turret is in by the limiting indication end.
It is further improved, the surge protection module further includes a box-like insulation crust, and the side of insulation crust is equipped with
One opening, each component on the surge protection module are packed by the opening in insulation crust, first conductive contact and
One end of second conductive contact is exposed to outside the insulation crust, and partial outer face of the insulation crust at the conduct piece is set
There is the groove being recessed inwardly, several thermal columns are distributed on the groove.Insulation crust can be increased in this way close to the conduction
Local heat-sinking capability at part, preferably to distribute the larger heat generated at the conduct piece.
It further improves, the pedestal is U-shape, and two medial surfaces of pedestal set that there are two guide groove, the insulation
Two lateral surfaces of shell are set to be matched there are two guide protrusions with two guide grooves.The surge can more preferably be made in this way
Protection module is mutually located with pedestal.
It is preferred that a side of the conduct piece corresponds to the second electrode equipped with the first connecting end surface, the conduct piece
Another side corresponds to the conductive extension, first connecting end surface and second connection end face phase equipped with second connection end face
Mutual stagger setting.
It is further improved, a microswitch in the pedestal is housed, is also connected with a remote signalling plug on the pedestal, remote signalling is inserted
Head is electrically connected with microswitch；It is articulated in the middle part of one compression bar in the pedestal and at microswitch, the pedestal is built-in
There is a torsional spring, one end of torsional spring is pressed on compression bar, and torsional spring drives one end of compression bar to press to microswitch；The displaceable dress of one mandril
On the bracket, one end of mandril, which is stretched into the pedestal, withstands the compression bar other end, and compression bar overcomes torsion under the action of mandril
The elastic force rotation of spring makes one end of compression bar be detached from microswitch；During at least one dropout rotating turret rotation, described thread off turns
Moving frame driving mandril displacement, mandril release constraint to compression bar, compression bar torsional spring drive it is lower rotate make compression bar one end push down it is micro-
Dynamic switch.Increase remote signaling function, and be hardly damaged since microswitch is chronically at force-free state by these settings, improve
The reliability of remote signaling function.
It further improves, a compression spring is also equipped on the stent and pushes down mandril, compression spring drives one end of mandril to withstand pressure
The other end of bar.To ensure that mandril can reliably withstand compression bar.
The invention has the advantages that：
1st, one end of the first conductive contact on surge protection module and the second conductive contact is plugged on described first respectively
It is conductively connected terminal and described second to be conductively connected on terminal, surge protection module forms socket connection with pedestal, facilitates electricity
The repair and replacement of protection module are gushed, maintainability is preferable.
2nd, since the overvoltage restriction element on surge protection module is set on its opposite two outer surface, there are two second
Electrode is being respectively provided with a dropout rotating turret at two second electrodes, and be connected a conduction on each dropout rotating turret
Part, the other end of second conductive contact set that there are two conductive extensions；One side of the conduct piece passes through heat fusion
One second electrode of layer gold adhesion, another side of the conduct piece is by heating one conduction of alloy-layer adhesion
Extension.The second conductive contact described so just passes through two conductive extensions, two conduct pieces and multiple hot melts
Alloy-layer is electrically connected overvoltage restriction element, forms electrical connection effect in parallel, increases effectively surge current ability to bear, is inserting
It is realized under the premise of pulling out formula structure big through-flow.Through experiment, the present invention bears surge current up to more than 120KA.It both carries in this way
The safety that height uses can also meet the requirement of more electronic equipments.
3rd, design structure symmetry of the invention is good, compact-sized, is especially can be controlled in the size of thickness direction smaller
In the range of, be conducive to the miniaturization of product.
4th, the present invention increases remote signaling function, and since microswitch is chronically at non-stress shape by further improving
State is hardly damaged, and also improves the reliability of remote signaling function.
5th, the structure feature of insulation shell of the invention at the correspondence conduct piece has the heat radiation energy of preferable part
Power can preferably distribute the larger heat generated at the conduct piece, to protect surge protection module.
Description of the drawings
Fig. 1 is stereogram of the present invention；
Fig. 2 is the hiding pedestal stereogram of the present invention；
Fig. 3 is that the present invention first is conductively connected terminal stereogram；
Fig. 4 is that the present invention second is conductively connected terminal stereogram；
Fig. 5 is surge protection module stereogram of the present invention；
Fig. 6 is that surge protection module of the present invention hides insulation crust stereogram；
Fig. 7 is that surge protection module of the present invention hides insulation crust front view；
Fig. 8 is the A-A sectional views of Fig. 7；
Fig. 9 is the stereogram that Fig. 6 hides stent；
Figure 10 is that overvoltage restriction element of the present invention is connected with each other front view with the first conductive contact；
Figure 11 is the B-B sectional views of Figure 10；
Figure 12 is the second conductive contact stereogram of the invention；
Figure 13 is conduct piece stereogram of the present invention；
Figure 14 is dropout rotating turret stereogram of the present invention；
Figure 15 is insulation crust top perspective view of the present invention；
Figure 16 is insulation crust face upwarding stereogram of the present invention；
Figure 17 is remote signalling triggering mandril stereogram of the present invention；
Figure 18 is the stereogram of pedestal of the present invention.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Shown in Fig. 1 to Figure 18, a kind of big through-flow surge protector, including pedestal 10, surge protection module 20, pedestal 10
Above terminal 30 and second being conductively connected equipped with first be electrically isolated from each other and being conductively connected terminal 40, the surge protection module 20 is adopted
It is connected on the pedestal 10 with the mode of grafting, the first of the present embodiment, which is conductively connected terminal 30 and second, is conductively connected terminal
40 structure size is identical, and position can be interchanged.
The surge protection module 20 includes stent 1, overvoltage restriction element 2, and shape is made by plastic material in the stent 1
Into an insulator, the stent 1 can general design it is L-shaped, equipped with the first conductive contact 3 and the second conductive contact 4 on stent 1,
In order to install and fix the first conductive contact 3 and the second conductive contact 4, the stent 1 can be designed to that two parts are mutually clamped
It forms；
One end of first conductive contact 3 is contact end 31, the other end is connecting pin 32, and one end of the second conductive contact 4 is
Contact end 41, the other end are connecting pin 42, at the contact end 41 of 31 and second conductive contact 4 of contact end of the first conductive contact 3
In the same side of the stent 1；
By Fig. 2, Fig. 3, Fig. 4, Fig. 8, Figure 11, Figure 12 can with it is further seen that, the contact end of first conductive contact 3
31 cross section is W types, and described first is conductively connected on terminal 30 and sets there are two grafting through-hole 301, first conductive contact 3
Contact end 31 be plugged on described first and be conductively connected on two grafting through-holes 301 of terminal 30；Second conductive contact 4
The cross section of contact end 41 is W types, and described second is conductively connected on terminal 40 and sets there are two grafting through-hole 401, and described second leads
The contact end 41 of electrical contact 4 is plugged on described second and is conductively connected on two grafting through-holes 401 of terminal 40；Described first is conductive
The W types contact end of 3 and second conductive contact 4 of contact can form clamping force when passing through electric current, more preferably conductive with described first
Connection terminal 30 and described second is conductively connected terminal 40 and combines, and further promotes through-current capability, realizes big through-flow plug-in
Structure.
Overvoltage restriction element 2 is equipped with the connecting pin 32 of connected first conductive contact 3 of first electrode 21 and forms electrical connection,
Overvoltage restriction element 2 sets that there are two second electrodes 22 on its opposite two outer surface；It can be further by Figure 10 and Figure 11
Find out, concrete structure is：The overvoltage restriction element 2 includes varistor 23, and two 23 outsides of varistor are coated with
Insulating layer forms a blocks 24, and the first electrode 21 is arranged on the side of the blocks 24, two second electrodes 22
It being arranged on two opposing end surfaces of the blocks 24, each second electrode 22 can slightly protrude from the residing end face,
One end of two varistors 23 is connected in the first electrode 21 and forms electrical connection together, two varistors 23 it is another
One end is respectively fixedly connected in two second electrodes 22 and forms electrical connection.
A dropout rotating turret 5 is being respectively provided at two second electrodes 22, each dropout rotating turret 5 is articulated in
On the stent 1, there are one elastic components 6 to drive 5 turns of dropout rotating turret for dress between each dropout rotating turret 5 and the stent 1
Dynamic, be connected a conduct piece 7 on each dropout rotating turret 5, and the present embodiment elastic component 6 is preferably tension spring；
The connecting pin 42 of second conductive contact 4 is set there are two conductive extension 421, each conductive extension 421 to
The side extension of one dropout rotating turret 5；
One side of the conduct piece 7 is by heating 8 adhesion of alloy-layer, one second electrode 22, the conduct piece
7 another side is also by hot melt 8 adhesion of alloy-layer, one conductive extension 421.Concrete structure is：The conduct piece
7 are made of copper coin punching press, and the side of the conduct piece 7 is set corresponds to the second electrode 22 there are one the first connecting end surface 71, the
It is bonded between one connecting end surface 71 and the second electrode 22 by heating 8 phase of alloy-layer；The opposite side of the conduct piece 7 is equipped with
One second connection end face 72 corresponds to the conductive extension 421, between second connection end face 72 and the conductive extension 421
It is bonded by heating 8 phase of alloy-layer；From Figure 13, it is furthermore clear that, the first connecting end surface 71 and second connection end face are about 72
Mutually stagger setting；
The hot melt alloy-layer 8 of the present embodiment selects lead-free tin cream layer, and further preferred lead-free tin cream is containing tin, bismuth and silver
Hot melt alloy, and preferably the melting temperature of the lead-free tin cream be 172 DEG C.
Side of the dropout rotating turret 5 far from the first conductive contact 3 is equipped with a limiting indication end 51, the limiting indication end
The rotation of the dropout rotating turret 5 is limited during the 51 contact blocks 24.
A displaceable mandril 9 is also equipped on the stent 1, the mandril 9 of the present embodiment leads to by setting one thereon
Hole 91 is articulated on an axis pin of stent 1；One microswitch 50 in the pedestal 10 is housed, one is also connected on the pedestal 10
Remote signalling plug 60, remote signalling plug 60 are electrically connected with microswitch 50, and the pin of the present embodiment microswitch 50 is directly plugged on distant
On letter rack head 60, to simplify structure, space and cost are saved, is also convenient for assembling；
The middle part of one compression bar 70 is articulated in the pedestal 10 and at microswitch 50, and one is equipped in the pedestal 10
Torsional spring 80, one end of torsional spring 80 are pressed on compression bar 70, and torsional spring 80 drives one end of compression bar 70 to press to microswitch 50；
The mandril 9 drives end 93 there are two being equipped with top pressure end 92 in one end, set in its both sides, is filled on the stent 1
There is a compression spring 90 to push down mandril 9, mandril 9 is equipped with one end that a shrinkage pool 94 entangles compression spring 90, and the mandril 9 of the present embodiment leans on
Nearly first conductive contact 3 is set, and compression spring 90 is between 9 and first conductive contact 3 of mandril, the first conductive contact 3
Middle part be additionally provided with a protrusion 33 and one end of compression spring 90 socket-connects, the top pressure end 92 of the mandril 9, which is stretched into pedestal 10, withstands
The other end of compression bar 70, compression bar 70 overcomes the torsion of torsional spring 80 to rotate under the action of mandril 9 is detached from the other end of compression bar 70
Microswitch 50；
Each dropout rotating turret 5 is equipped with a struck side 52 and the one of the mandril 9 close to 3 side of the first conductive contact
A driving end 93 matches, and each dropout rotating turret 5 when the elastic component 6 is rotated by, dial by dropout rotating turret 5
The elastic force that moved end 52 can stir described 9 one driving ends 93 of mandril and the mandril 9 is made to overcome compression spring 90 shifts, the top of mandril 9
Pressure side 92 just releases constraint to 70 other end of compression bar, compression bar 70 torsional spring 80 drive it is lower rotate make compression bar 70 one end push down it is micro-
Dynamic switch 50.
The surge protection module 20, which is can be seen that, in conjunction with Fig. 5, Figure 15 and Figure 16 further includes a box-like insulation crust
11, insulation crust 11 can be used transparent plastic material and be made, and the side of insulation crust 11 is equipped with an opening 111, and the surge is protected
Each component in shield module 20 is inserted in by the opening 111 in insulation crust 11,31 He of contact end of first conductive contact 3
The contact end 41 of second conductive contact 4 is exposed to outside the insulation crust 11, portion of the insulation crust 11 at the conduct piece 7
Exceptionally surface is equipped with the groove 112 being recessed inwardly, several thermal columns 113 are distributed on the groove 112.
The insulation crust 11 is equipped with a watch window 114 far from 3 contact end of the first conductive contact, 31 side.It is described
By the watch window 114 it can be seen that limiting indication end 51 when limiting indication end 51 contacts the blocks 24.
The both sides of the stent 1 are set there are two clamping protrusion 12, and the both sides of the insulation crust 11 set that there are two blocked holes
115 match with described two clamping protrusions 12.
A card slot 116 is additionally provided in the 11 medial surface side of insulation crust, in the blocks 24 of overvoltage restriction element 2
Side setting positioning protrusion 241 matched with the card slot 116, be more advantageous to positioning overvoltage restriction element 2 in this way.
One identification elements 13 is housed on the stent 1 between the first conductive contact 3 and the second conductive contact 4.
In conjunction with shown in Figure 15, Figure 16, Figure 18, the pedestal 10 is U-shape, there are two two medial surfaces of pedestal 10 are set
Guide groove 101, two lateral surfaces of the insulation crust 11 set that there are two guide protrusions 116 and two guide grooves 101
It matches.
In order to keep the integrality of product, the end cap that is connected is also needed on the pedestal 10 of the present embodiment, is not shown in figure
The reason is that in order to better illustrate each component and the position relationship in pedestal 10.
The operating principle of the present invention is as follows：Terminal 30 and second is conductively connected by first on pedestal 10 and is conductively connected end
Son 40 is connect with outside line, and in normal operation, the surge protection module 20 is failure to actuate；
After the 23 long-play aging of varistor of overvoltage restriction element 2, when leakage current increases, stick in
Alloy-layer 8 is heated on described 7 two sides of conduct piece to be melted, and at least one dropout rotating turret 5 is made to be pulled in the elastic component 6
Lower rotation makes the conduct piece 7 be detached from the second electrode 22 and the conductive extension 421, by the electric leakage of varistor 23
Road disconnection is flowed back to, leads to power supply short circuit to prevent the increase of stopping leak leakage current.
It is rotated simultaneously at least one dropout rotating turret 5, mandril 9 is stirred in the struck side 52 of dropout rotating turret 5 simultaneously
On driving end 93 so that mandril 9 elastic force of compression spring 90 is overcome to shift, the top pressure end 92 of mandril 9 is released to 70 other end of compression bar
Constraint, compression bar 70 drive lower rotation that one end of compression bar 70 is made to push down microswitch 50 in torsional spring 80, and microswitch 50 is closed, passes through
60 output action signal of remote signalling plug, instruction surge protector are in malfunction, need to change.
It the above is only a preferred embodiment of the invention, those skilled in the art is made equivalent change by claim
Both fall within the protection domain of this case.
Claims (8)
1. a kind of big through-flow surge protector, including pedestal, surge protection module, equipped with first be electrically isolated from each other on pedestal
It is conductively connected terminal and second and is conductively connected terminal, the surge protection module includes stent, overvoltage restriction element, on stent
Equipped with the first conductive contact and the second conductive contact, one end of the first conductive contact is plugged on described first and is conductively connected terminal
On, one end of the second conductive contact is plugged on described second and is conductively connected on terminal, it is characterised in that：
The overvoltage restriction element be equipped with first electrode be connected the first conductive contact the other end and form electrical connection, overvoltage
Restriction element is additionally provided with two second electrodes on its opposite two outer surface；
A dropout rotating turret is being respectively provided at two second electrodes, dropout rotating turret is pivotally connected on the bracket,
Each there are one elastic components to drive the rotation of dropout rotating turret, rotating turret of each threading off for dress between dropout rotating turret and the stent
A upper connected conduct piece；
The other end of second conductive contact is set there are two conductive extension；
One side of the conduct piece by heating one second electrode of alloy-layer adhesion, the conduct piece another
Side is by heating one conductive extension of alloy-layer adhesion；
The overvoltage restriction element includes two varistors, and insulating layer is coated on the outside of two varistors and forms a bulk
Body, the first electrode are arranged on the side of the blocks, and two second electrodes are arranged on two of the blocks relatively
On end face, one end of two varistors is connected on the first electrode and forms electrical connection together, two varistors
The other end is respectively fixedly connected in two second electrodes and forms electrical connection；
The side of the dropout rotating turret far from the first conductive contact is equipped with a limiting indication end, which indicates described in end in contact
The rotation of the dropout rotating turret is limited during blocks.
2. a kind of big through-flow surge protector according to claim 1, it is characterised in that：First conductive contact with
Described first, which is conductively connected terminal, plugs the cross section of one end as W types, described first be conductively connected on terminal set there are two with
The matched grafting through-hole of first conductive contact；
Second conductive contact is conductively connected terminal with described second and plugs the cross section of one end as W types, and described second leads
Set on electric connection terminal there are two with the matched grafting through-hole of second conductive contact.
3. a kind of big through-flow surge protector according to claim 1, it is characterised in that：The elastic component is tension spring,
The hot melt alloy-layer is lead-free tin cream layer.
4. a kind of big through-flow surge protector according to claim 1, it is characterised in that：The surge protection module is also
Including a box-like insulation crust, the side of insulation crust is equipped with one and is open, and each component on the surge protection module passes through
The opening is packed into insulation crust, and one end of first conductive contact and the second conductive contact is exposed to outside the insulation crust,
Partial outer face of the insulation crust at the conduct piece is equipped with the groove being recessed inwardly, several are distributed on the groove
Thermal column.
5. a kind of big through-flow surge protector according to claim 4, it is characterised in that：The pedestal be U-shape, bottom
Two medial surfaces of seat are set there are two guide groove, two lateral surfaces of the insulation crust set there are two guide protrusions with it is described
Two guide grooves match.
6. a kind of big through-flow surge protector according to claim 1, it is characterised in that：One side of the conduct piece
Face corresponds to the second electrode equipped with the first connecting end surface, another side of the conduct piece is corresponded to equipped with second connection end face
The conductive extension, first connecting end surface and second connection end face mutually stagger setting.
7. a kind of big through-flow surge protector according to any one of claims 1 to 6, it is characterised in that：The pedestal
One microswitch is inside housed, a remote signalling plug is also connected on the pedestal, remote signalling plug is electrically connected with microswitch；
It is articulated in the middle part of one compression bar in the pedestal and at microswitch, a torsional spring is housed in the pedestal, torsional spring
One end is pressed on compression bar, and torsional spring drives one end of compression bar to press to microswitch；
On the bracket, one end of mandril is stretched into the pedestal withstands the compression bar other end, compression bar to the displaceable dress of one mandril
The elastic force of torsional spring is overcome to rotate under the action of mandril makes one end of compression bar be detached from microswitch；
During at least one dropout rotating turret rotation, the dropout rotating turret driving mandril displacement, mandril is released to compression bar
Constraint, compression bar drive lower rotation that one end of compression bar is made to push down microswitch in torsional spring.
8. a kind of big through-flow surge protector according to claim 7, it is characterised in that：One is also equipped on the stent
Compression spring pushes down mandril, and compression spring drives one end of mandril to withstand the other end of compression bar.
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| CN201510224964.9A CN104810814B (en) | 2015-05-06 | 2015-05-06 | A kind of big through-flow surge protector |
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| CN201510224964.9A CN104810814B (en) | 2015-05-06 | 2015-05-06 | A kind of big through-flow surge protector |
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| CN104810814A CN104810814A (en) | 2015-07-29 |
| CN104810814B true CN104810814B (en) | 2018-06-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106505542B (en) * | 2015-09-07 | 2019-03-01 | 上海电科电器科技有限公司 | Surge protector pedestal |
| CN106602536B (en) * | 2017-02-24 | 2018-12-21 | 厦门宏发开关设备有限公司 | A kind of surge protection module |
| CN108962695B (en) * | 2017-05-23 | 2019-12-10 | 町洋企业股份有限公司 | Signal feedback device |
| US10121615B1 (en) | 2017-06-27 | 2018-11-06 | Dinkle Enterprise Co., Ltd. | Signal feedback apparatus |
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| CN104253423A (en) * | 2013-06-27 | 2014-12-31 | 施耐德电器工业公司 | Surge protection device |
| CN204696674U (en) * | 2015-05-06 | 2015-10-07 | 厦门宏发开关设备有限公司 | A kind of surge protector through-flow greatly |
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| CN104810814A (en) | 2015-07-29 |
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