CN103580019B - Surge protection device for circuit board - Google Patents
Surge protection device for circuit board Download PDFInfo
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- CN103580019B CN103580019B CN201210281721.5A CN201210281721A CN103580019B CN 103580019 B CN103580019 B CN 103580019B CN 201210281721 A CN201210281721 A CN 201210281721A CN 103580019 B CN103580019 B CN 103580019B
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- shell
- current bar
- protection device
- surge protection
- microswitch
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Abstract
The surge protection device for circuit board that the present invention proposes, including a shell and bottom, is provided with varistor, gas-discharge tube, wire, insulation shell, spring, separation current bar, hot trip point, elastic plastic member, microswitch in described shell；Use insulant isolation between any two components and parts, between described separation current bar and gas-discharge tube, use copper flexible cable to be connected；Two pieces or polylith varistor upper and lower lamination arrangement form, the electrode of opposite flank respectively and between corresponding separation current bar low temperature scolding tin weld；Wherein, gas-discharge tube and elastic plastic member is placed between two pieces of varistors, overall structure presents up and down and left and right near symmetrical arrangement mode, hot trip point electrode is caused to separate with separating current bar after any varistor overload, microswitch can action outside output signal, the protection level that product has reached can be made, it is ensured that terminal unit damages from overvoltage.
Description
Technical field
The present invention and a kind of surge protection device, particularly to a kind of pcb board power supply circuit of protecting
Surge protection device.
Background technology
Along with electronic component increasingly to miniaturization, integrated development, for high-density arrangement element circuitry plate
Limited in area space, in the case of limiting the most in the height direction very greatly, this traditional structure is
Through the development need of prior art can not be met far away.Small-sized in order to meet power supply over all Integration, volume
Change, the maximized needs of power, Phoenix carries out brand-new design to conventional power source class surge protection device,
Past, relevant big through-flow power supply surge protection device was used for guide tracked installation form, and on circuit boards with also
Simply little flow-through format, mostly uses varistor, gas-discharge tube or TVS diode element directly to weld
On circuit boards, there is no hot tripping function, more there is no remote signaling function.
Therefore, in order to preferably solve the problems referred to above, using following technical proposals is the final purpose of this paper.
Summary of the invention
The technical program aim to overcome that the deficiencies in the prior art, in order to meet power supply over all Integration,
The maximized needs of volume miniaturization, power, completely newly will set conventional power source class surge protection device
Meter, designs a kind of for power lightning protection circuit board surge protection device so that it is the most electric from lightning induction
The damage that pressure, power supply disturbance, static discharge etc. are caused.
The purpose of the technical program, will be achieved by the following technical programs:
For the surge protection device of circuit board, its compact structure and multiple spot heat dropout design include outside one
Shell and bottom, be provided with varistor, gas-discharge tube, cable, insulation shell, bullet in described shell
Spring, separation current bar, hot trip point, elastic plastic member, microswitch；Use between any two components and parts
Insulant is isolated, and the electrode of the opposite flank of two pieces of varistors is respectively and between corresponding separation current bar
Low temperature scolding tin welds, and described gas-discharge tube embeds in the circular cavity of insulation shell integrated molding, institute
Copper flexible cable is used to be connected between separation current bar and the gas-discharge tube stated；It is characterized in that: described
Insulation shell is internal uses two pieces or polylith varistor upper and lower lamination arrangement form, wherein, be positioned at two pieces pressure-sensitive
Between resistance, overall structure presents the spring top that left and right near symmetrical mode places and relies on its elastic force to hold separation
Current bar, both sides have the elastic plastic member of bending symmetric arms and center ovalize cavity and are socketed in and shell
On the cylindrical shaft being connected, elastic plastic member can slide up and down around central fixed shaft, and elastic
The contact of working of plastics is in close contact with the moving contact of microswitch；When circuit exists overcurrent and overvoltage condition
Time, after gas discharge tube discharge makes that varistor is overheated and reaches uniform temperature, any hot trip point is due to pressure
Conducting heat to hot trip point after quick electrical resistance overheats, hot trip point scolding tin melts, and separates current bar at spring
Effect under, the separation current bar in hot trip point is separated with piezoresistance electrode, disconnects this path；With
Time, trigger microswitch action by the deformation of elastic plastic member and will be switched off path signal to outside output.
The application of the technical program structure, its prominent effect shows themselves in that
1, the neutral conductor alternate, relative and multiple protective form over the ground, and signal heat threaded off are used
Exported to outside remote signalling by microswitch.
2, low residual voltage circuit, can make the protection level that product has reached, it is ensured that terminal unit is from the most electric
Crushing is bad.
3, key benefit also resides in: this small product size is less, the shortest, and this design pin is straight
Connect and can weld on circuit boards, there is the functions such as dropout the most through-flow, hot, remote signalling；Meet existing industrial electro
Source height is integrated, miniaturization, power maximize demand, fills up this product blank in the sector.
Below in conjunction with embodiment accompanying drawing, make further to decompose to the detailed description of the invention of the present invention, so that this
Technical scheme is more readily understood, grasps.
Accompanying drawing explanation
Fig. 1 is the side structure schematic diagram of technical solution of the present invention decomposing state.
Fig. 2 is the Facad structure schematic diagram of technical solution of the present invention decomposing state.
Fig. 3 is the circuit theory diagrams of technical solution of the present invention embodiment.
In figure, the implication of each reference is:
1-shell, 2-bottom, 3-varistor, 4-gas-discharge tube, 5-cable, 6-insulate
Shell, 7-separate current bar, 8-spring, the hot trip point of 9-, 10-microswitch, 11-elastoplast
Part.
Detailed description of the invention
Understand in conjunction with Fig. 2 with reference to Fig. 1, be the surging prevention for circuit board of the technical program proposition
Device, it is used phase top-stitching low residual voltage circuit protection form over the ground, and is opened by fine motion by the signal that heat is threaded off
Close to outside remote signalling output, it is ensured that terminal unit damages from overvoltage；Described circuit board Anti-surging is protected
Protect device and include a shell 1 and bottom 2, in described shell, be provided with varistor 3, gas-discharge tube
4, cable 5, insulation shell 6, separation current bar 7, spring 8, hot trip point 9, microswitch 10, bullet
Property working of plastics 11；Described insulation shell 6 is internal uses two pieces or polylith varistor about 3 lamination arrangement shape
Formula, between two pieces of varistors 3, overall structure presents the spring 8 that left and right near symmetrical mode places and pushes up
End relies on its elastic force to hold separation current bar 7, all uses insulant to isolate, protect between any two components and parts
Demonstrate,prove the requirement of electric clearance and creep age distance；It is embedded in two pieces of varistors 3 inside described insulation shell 6
The electrode of corresponding side respectively and between corresponding separation current bar 7 low temperature scolding tin weld, institute
State in the circular cavity that gas-discharge tube 4 embeds insulation shell 6 integrated molding, described separation current bar 7
Being connected with using copper flexible cable 5 between gas-discharge tube 4, both sides have bending symmetric arms and center is ellipse
The elastic plastic member 11 of circular cavity is socketed on the cylindrical shaft being connected with shell 1, elastic plastic member
11 can slide up and down around central fixed shaft, and the contact of elastic plastic member 11 and microswitch 10
Moving contact be in close contact；Wherein, when there is overcurrent and overvoltage condition in circuit, gas-discharge tube 4
After electric discharge makes that varistor 3 is overheated and reaches uniform temperature, any hot trip point 9 is due to varistor 3 mistake
Conducting heat to hot trip point 9 after heat, hot trip point 9 scolding tin melts, and separates current bar 7 at spring 8
Effect under, by the separation current bar 7 in hot trip point 9 and varistor 3 electrode separation, disconnect this and lead to
Road；Meanwhile, trigger microswitch 10 action by the deformation of this elastic plastic member 11 and will be switched off path signal
Export to outside；Cause hot trip point 9 electrode and separate current bar 7 after the most any varistor 3 overload
Separating, microswitch 10 can action outside output signal.
Further, this surge protection device shell 1 uses technical grade flame-retardant insulating material, and it includes PC
With the mixture of ABS, process molding through high-temperature injection；Owing to this type of material has various shapes,
Impact resistance, has excellent toughness and plasticity, not easy fracture and deformation；The most again during this product uses
And there is between circuit board the electric property of safe insulation, the most attractive in appearance but also safe and reliable.
Further, the fixing employing screwless snap design between described shell 1 and bottom 2,
Install many buckles and groove between shell 1 and bottom 2, not only firmly and also assemble simple and fast, be positioned at
The two ends design pin of bottom 2 directly can weld on circuit boards, owing to this small product size is less, highly
Low, can preferably install under limited steric requirements.
Further, described elastic plastic member 11 is the working of plastics that there is symmetric arms center cavity both sides,
Its center has oblong cavity body, and cavity is socketed on the cylindrical shaft being connected with shell 1；Both sides pair
Claiming arm to a direction bend relief, protruding arm end points is column type, and elastic plastic member 11 can be around
Central fixed shaft slides up and down；Lateral symmetry brachiocylloosis initial part abuts against the plastics barrier of intermediate openings and breaks
On face, described plastics barrier section limits the position in the lateral symmetry arm occurred level direction of elastic plastic member 11
Move, and the moving contact of the contact of elastic plastic member 11 and microswitch 10 is in close contact.
The separation current bar 7 of described lateral symmetry distribution, its one end and heat take off mouth and put 9 soldered phases
Even, the other end welds conducting by copper flexible cable 5 with gas-discharge tube 4, is positioned at the left and right sides of lower end
Spring 8 respectively hold separation current bar 7 middle bent at.
Yet further, described microswitch 10 moving contact contact resilient working of plastics 11 and outside being fixed on
In one prefabricated rectangular channel of shell 1, described moving contact is positioned at microswitch 10 top, microswitch
10 inside are respectively configured one group of normally opened and normally closed contact switch, the activity of moving contact excite contact switch
Guan Bi and unlatching, export different two group signal, for user's unrestricted choice signal source.
As it is shown on figure 3, the present embodiment uses isolation and isoelectric level circuit design, two pieces of varistors 3 over the ground
The corresponding holding wire that connects is to upper, and one group of gas-discharge tube 4 two end electrodes is respectively coupled to phase adjacency pair holding wire pair
On, gas-discharge tube 4 target is connected to jointly go up；When surge occurs, gas-discharge tube 4 is real
Showed the electric discharge over the ground of surge, simultaneously two pieces of varistors 3 realize the surge voltage between each group of holding wire pair,
Electric current suppresses；In time without high voltage surge, all varistors 3 and discharge tube 4 are rendered as high-impedance state, meet electricity
The requirement of road isolation.
This surge protection device, in the electrical equipment with power lightning protection function, uses lightning protection for power supply energy
The a large amount of pulse energy short circuits produced because of lightning induction on release circuit within the shortest time are released to the earth,
Potential difference between each interface of reduction equipment, thus the equipment in protection circuit；Require that lightning protection device should meet peace
Full protection surge and the ability of anti-overvoltage, meet communication system again increasingly to miniaturization integrated direction
The requirement of development, therefore uses design the most through-flow, compact to adapt to following developing direction.
Last it should be noted that be only one of concrete exemplary applications of the present invention above, actual application
In all can take the circumstances into consideration as the case may be select substitute components and parts, but to invention protection domain do not constitute any limit
System.
Claims (7)
1., for the surge protection device of circuit board, including a shell and bottom, set in described shell
Be equipped with varistor, gas-discharge tube, wire, insulation shell, spring, separation current bar, hot trip point,
Elastic plastic member, microswitch；Insulant is all used to isolate between any two components and parts, two blocks of pressure-sensitive electricity
The electrode of the opposite flank of resistance respectively and between corresponding separation current bar low temperature scolding tin weld, described gas
Body discharge tube embeds in the circular cavity of insulation shell integrated molding, described separation current bar and gas discharge
Copper flexible cable is used to connect between pipe；It is characterized in that: described insulation shell is internal uses two pieces or polylith
Varistor upper and lower lamination arrangement form, wherein, between two pieces of varistors, overall structure presents left and right
The spring top that near symmetrical mode is placed relies on its elastic force to hold separation current bar, and both sides have bending symmetry
The elastic plastic member of Bei Ji center ovalize cavity is socketed on the cylindrical shaft being connected with shell, elastic
Working of plastics can slide up and down around central fixed shaft, and the contact of elastic plastic member and microswitch
Moving contact is in close contact；When circuit existed stream and overvoltage condition, gas discharge tube discharge makes pressure-sensitive electricity
Hinder overheated reach uniform temperature after, any hot trip point due to varistor overheated after to conduct heat to heat de-
Button point, hot trip point scolding tin melts, and separates current bar under the action of the spring, by the separation in hot trip point
Current bar separates with piezoresistance electrode, disconnects this path；Meanwhile, triggered by the deformation of elastic plastic member
Microswitch action will be switched off path signal and exports to outside.
Surge protection device for circuit board the most according to claim 1, it is characterised in that: should
Surge protection device shell uses technical grade flame-retardant insulating material, and it includes the mixture of PC and ABS, warp
Cross high temperature injection process molding.
Surge protection device for circuit board the most according to claim 1, it is characterised in that: institute
The design of the fixing employing screwless buckle between shell and the bottom stated, installs many between shell and bottom
Buckle and groove, the two ends design pin being positioned at bottom directly can weld on circuit boards.
Surge protection device for circuit board the most according to claim 1, it is characterised in that: two
Side symmetric arms is to a direction bend relief, and protruding arm end points is column type, holds the left and right sides respectively
Separate current bar.
Surge protection device for circuit board the most according to claim 1, it is characterised in that: two
Side symmetric arms bending initial part abuts against on the plastics barrier section of intermediate openings, and described plastics barrier section limits
Determine the displacement in the lateral symmetry arm occurred level direction of elastic plastic member, and the contact of elastic plastic member is with micro-
The moving contact of dynamic switch is in close contact.
Surge protection device for circuit board the most according to claim 1, it is characterised in that: institute
The moving contact contact resilient working of plastics of the microswitch stated and in being fixed on the rectangular channel of shell, described is dynamic
Contact is positioned at microswitch top, is respectively configured one group of normally opened and normally closed contact switch inside microswitch,
Excited Guan Bi and the unlatching of contact switch by the activity of moving contact, export different two group signal.
Surge protection device for circuit board the most according to claim 1, it is characterised in that: adopt
By isolation and isoelectric level circuit design over the ground, two pieces of varistor correspondences connect holding wires to upper, one group of gas
Discharge tube two end electrodes is respectively coupled to phase adjacency pair holding wire to upper, and gas-discharge tube target is connected to jointly
On the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281721.5A CN103580019B (en) | 2012-08-09 | 2012-08-09 | Surge protection device for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281721.5A CN103580019B (en) | 2012-08-09 | 2012-08-09 | Surge protection device for circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103580019A CN103580019A (en) | 2014-02-12 |
| CN103580019B true CN103580019B (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210281721.5A Active CN103580019B (en) | 2012-08-09 | 2012-08-09 | Surge protection device for circuit board |
Country Status (1)
| Country | Link |
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| CN (1) | CN103580019B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4020733A4 (en) * | 2019-12-26 | 2022-11-02 | Xiamen Set Electronics Co., Ltd | Modular surge protector |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825260B (en) * | 2014-02-28 | 2018-04-27 | 北京欧地安科技有限公司 | Power source surge protector |
| CN105703346B (en) * | 2015-05-26 | 2018-06-05 | 深圳普泰电气有限公司 | Large-discharge surge protector |
| CN105610049B (en) * | 2016-02-25 | 2024-05-17 | 深圳市槟城电子股份有限公司 | Gas discharge tube |
| DE202017000117U1 (en) * | 2016-06-22 | 2017-01-23 | DEHN + SÖHNE GmbH + Co. KG. | Overvoltage protection arrangement with at least one, arranged on a first side of a n-shaped support plate, disk-shaped varistor |
| CN108666181B (en) * | 2018-04-28 | 2024-03-15 | 深圳市海鹏信电子股份有限公司 | Tripping mechanism and surge protection device with same |
| CN209434871U (en) * | 2019-01-29 | 2019-09-24 | 厦门赛尔特电子有限公司 | A kind of Surge Protector |
| CN109888758B (en) * | 2019-02-19 | 2020-07-28 | 成都标定科技有限责任公司 | 40kA single-phase PCB type power surge protector |
| CN110061487A (en) * | 2019-04-30 | 2019-07-26 | 深圳市瑞隆源电子有限公司 | A kind of manufacture craft of lightning-protection module and lightning-protection module |
| CN113130223B (en) * | 2021-03-01 | 2022-11-25 | 重庆先进光电显示技术研究院 | Mechanical switching equipment and anti-surge circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006031158A1 (en) * | 2004-09-16 | 2006-03-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Over-protection circuit for indoor digital signal communication |
| CN200941370Y (en) * | 2006-09-01 | 2007-08-29 | 宁波能士通信设备有限公司 | Surge protector |
| CN201440606U (en) * | 2009-07-06 | 2010-04-21 | 佛山市浦斯电子有限公司 | Surge protector |
| CN101860008A (en) * | 2010-05-13 | 2010-10-13 | 菲尼克斯亚太电气（南京）有限公司 | Electric-connection thermal tripping operating display device, electronic device and large-discharge surge protector |
-
2012
- 2012-08-09 CN CN201210281721.5A patent/CN103580019B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006031158A1 (en) * | 2004-09-16 | 2006-03-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Over-protection circuit for indoor digital signal communication |
| CN200941370Y (en) * | 2006-09-01 | 2007-08-29 | 宁波能士通信设备有限公司 | Surge protector |
| CN201440606U (en) * | 2009-07-06 | 2010-04-21 | 佛山市浦斯电子有限公司 | Surge protector |
| CN101860008A (en) * | 2010-05-13 | 2010-10-13 | 菲尼克斯亚太电气（南京）有限公司 | Electric-connection thermal tripping operating display device, electronic device and large-discharge surge protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4020733A4 (en) * | 2019-12-26 | 2022-11-02 | Xiamen Set Electronics Co., Ltd | Modular surge protector |
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| Publication number | Publication date |
|---|---|
| CN103580019A (en) | 2014-02-12 |
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| CB03 | Change of inventor or designer information |
Inventor after: Ren Huashan Inventor after: Xu Zhuqin Inventor after: Gu Jiandang Inventor before: Ren Huashan Inventor before: Xu Zhuqin |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211100 No. 36 Phoenix Road, Jiangning Development Zone, Nanjing City, Jiangsu Province Co-patentee after: Feinikesi (Nanjing) Intelligent Manufacturing Technology Engineering Co., Ltd. Patentee after: Phoenix Contact Asia-Pacific Electrical (Nanjing) GmbH Address before: 211100 No. 36 Phoenix Road, Jiangning Development Zone, Nanjing City, Jiangsu Province Co-patentee before: Nanjing Phoenix Contact Co., Ltd. Patentee before: Phoenix Contact Asia-Pacific Electrical (Nanjing) GmbH |