CN110418493A - A kind of varistor electrostatic protection component - Google Patents
A kind of varistor electrostatic protection component Download PDFInfo
- Publication number
- CN110418493A CN110418493A CN201910598484.7A CN201910598484A CN110418493A CN 110418493 A CN110418493 A CN 110418493A CN 201910598484 A CN201910598484 A CN 201910598484A CN 110418493 A CN110418493 A CN 110418493A
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- Prior art keywords
- pad
- varistor
- special
- shaped electrode
- circuit board
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000037431 insertion Effects 0.000 claims abstract 2
- 238000003780 insertion Methods 0.000 claims abstract 2
- 238000001465 metallisation Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 5
- 229910000679 solder Inorganic materials 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000002360 explosive Substances 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0254—High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
- H05K1/0257—Overvoltage protection
- H05K1/0259—Electrostatic discharge [ESD] protection
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention proposes a kind of varistor electrostatic protection components, including printed circuit board, first pad, second pad, third pad, first special-shaped electrode, second special-shaped electrode, first varistor and the second varistor, the two poles of the earth of first varistor respectively with the first pad, second pad mutually welds, the both ends of second varistor respectively with the second pad, third pad mutually welds, the periphery of the printed circuit board offers card slot, the third pad solder is on card slot, the third pad includes pad, discharge electrode and side wrapped plate, the outer wall of the pad is extended with the side wrapped plate bent downward, in the side wrapped plate insertion card slot, the outer wall of the side wrapped plate and the outer wall of printed circuit board form complete circular contour, the end of the side wrapped plate is equipped with the discharge electrode to bend inwards, the inner ring of the discharge electrode is equipped with third Sawtooth discharge part.It can be protected to foot-shell and to foot-foot static discharge, while multiple electrostatic impact can also be protected.
Description
[technical field]
The present invention relates to the technical field of electrostatic protection electronic device, especially a kind of varistor electrostatic protection component.
[background technique]
Existing igniter wire formula commercial electric detonator is easy to be influenced to generate performance by electrostatic, stray electrical current in use
Change or accidental ignition.Durings the production of priming system and weapon system, assembly, storage, transport, operation and maintenance etc.,
The harm of static discharge is generally existing, and electrostatic has the characteristics that high voltage, low energy, high transient state, the coupling of electrostatic discharge energies
May ignition quality (sensitivity, time of ignition etc.) to electric initiating explosive device and security performance (safe current etc.) impact, very
To misfire or accidental ignition is caused, system task is made to be unable to complete or cause casualties.
The existing electrostatic protection technological approaches of electric cap is to use that insulating materials is arranged between foot-shell to improve its insulation
Intensity is arranged air-gap, applies conducting resinl, capacitor of releasing, semiconductor electric discharge to improve between electrostatic breakdown voltage or foot-shell
Foot-shell antistatic capacity is improved in the electrostatic leakages such as pipe channel；And the raising of foot-foot antistatic effect only increases at present
Big bridge wire diameter increases bridge plug contact area, improves the technical measures such as igniting gunpowder bursting point, it is proposed that a kind of varistor electrostatic
Guard assembly.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of varistor electrostatic protection component is proposed, it is right
Foot-shell and foot-foot static discharge is protected, while multiple electrostatic impact can also be protected.
To achieve the above object, the invention proposes a kind of varistor electrostatic protection components, including printed circuit board,
One pad, the second pad, third pad, the first special-shaped electrode, the second special-shaped electrode, the first varistor and the second pressure-sensitive electricity
Resistance, first pad, the second pad, third pad are set to the one side of printed circuit board, first special-shaped electrode, second
Special-shaped electrode is set to the another side of printed circuit board, and the two poles of the earth of first varistor are welded with the first pad, second respectively
Disk mutually welds, and the both ends of second varistor are mutually welded with the second pad, third pad respectively, on the printed circuit board
Be symmetrically arranged with two metallization hole slots, the both ends of one of metallization hole slot successively with the first pad, the first special-shaped electrode phase
Even, the both ends of another metallization hole slot are successively connected with the second pad, the second special-shaped electrode, the periphery of the printed circuit board
Offer card slot, for the third pad solder on card slot, the third pad includes pad, discharge electrode and side wrapped plate, described
The outer wall of pad is extended with the side wrapped plate bent downward, and the side wrapped plate is embedded in card slot, the outer wall of the side wrapped plate and printing
The outer wall of circuit board forms complete circular contour, and the end of the side wrapped plate is equipped with the discharge electrode to bend inwards, the electric discharge
The inner ring of plate is equipped with third sawtooth discharge part.
Preferably, the shape of the card slot is fan annular, the width of the card slot and the thickness of side wrapped plate are identical, described
The outer wall of side wrapped plate forms complete circular contour with the outer wall of printed circuit board and matches with the inner cavity profile of electric cap shell.
Preferably, first pad is equipped with the first arc-shaped edges far from the side of the second pad, third pad, described the
The both ends of the other side of one pad are equipped with the first semicircle weld part, the second semicircle weld part being symmetric, second weldering
One end of disk is equipped with the third semicircle weld part that the second pad is oppositely arranged, and one end of the third pad is equipped with and the second semicircle
The 4th semicircle weld part that weld part is oppositely arranged.
Preferably, the two poles of the earth of first varistor respectively with the first semicircle weld part, third semicircle weld part phase
Even, the both ends of second varistor are connected with the second pad, the 4th semicircle weld part respectively, first varistor with
Second varistor is symmetrical set.
The setting preferably, first special-shaped electrode, the second special-shaped electrode are centrosymmetric, the first abnormity electricity
Pole, the second special-shaped electrode outer rim collectively constitute rounded outer profile, the first sawtooth of outer cause of first special-shaped electrode
Discharge part and smooth arc portion composition, the third sawtooth discharge part are located at the outside in smooth arc portion, are formed between the two quiet
Electric leakage path, the outer rim of second special-shaped electrode are equipped with the second sawtooth discharge part, the first sawtooth discharge part, the second saw
Electrostatic leakage channel is formed between tooth discharge part and electric cap shell.
Beneficial effects of the present invention: the present invention arranges three metal pads by the front in printed circuit board, miniature
The two poles of the earth for changing patch type varistor electrostatic protection electronic device connect the first, second pad, make electrostatic protection component and electrical fire
Work product foot-human hair combing waste fire circuit constitutes parallel circuit, forms foot-foot electrostatic leakage channel；The pressure-sensitive electricity of patch type is miniaturized in another
The two poles of the earth of resistance electrostatic protection electronic device connect second, third pad, and electrostatic protection component and electric initiating explosive device foot-shell is made to be under fire back
Road constitutes parallel circuit, forms electrostatic leakage channel between foot-shell；The reverse side of printed circuit board arranges two special-shaped zigzag
Discharge electrode for the protection of foot shell static discharge, and is able to achieve multiple electrostatic discharge protective, zigzag discharge electrode and electrostatic protection
Modules in parallel constitutes the effect of foot-shell electrostatic protection double insurance.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of varistor electrostatic protection component of the present invention；
Fig. 2 is a kind of positive structural schematic diagram of varistor electrostatic protection component of the present invention；
Fig. 3 is a kind of positive partial structure diagram of varistor electrostatic protection component of the present invention；
Fig. 4 is a kind of structural schematic diagram of the reverse side of varistor electrostatic protection component of the present invention；
Fig. 5 is a kind of positive schematic diagram of the printed circuit board of varistor electrostatic protection component of the present invention.
[specific embodiment]
Refering to fig. 1 to a kind of varistor electrostatic protection component of Fig. 5 present invention, including printed circuit board 1, the first pad 2,
Second pad 3, third pad 4, the first special-shaped electrode 5, the second special-shaped electrode 6, the first varistor 7 and the second varistor 8,
First pad 2, the second pad 3, third pad 4 are set to the one side of printed circuit board 1, first special-shaped electrode 5,
Two special-shaped electrodes 6 are set to the another side of printed circuit board 1, the two poles of the earth of first varistor 7 respectively with the first pad 2,
The welding of second pad, 3 phase, the both ends of second varistor 8 are welded with the second pad 3,4 phase of third pad respectively, the print
Two metallization hole slots 11 are symmetrically arranged on printed circuit board 1, the both ends of one of metallization hole slot 11 successively with the first pad
2, the first special-shaped electrode 5 be connected, another metallization hole slot 11 both ends successively with the second pad 3,6 phase of the second special-shaped electrode
Even, the periphery of the printed circuit board 1 offers card slot 12, and the third pad 4 is welded on card slot 12, the third pad
4 include pad 41, discharge electrode 42 and side wrapped plate 43, and the outer wall of the pad 41 is extended with the side wrapped plate 43 bent downward, described
Side wrapped plate 43 is embedded in card slot 12, and the outer wall of the side wrapped plate 43 and the outer wall of printed circuit board 1 form complete circular contour,
The end of the side wrapped plate 43 is equipped with the discharge electrode 42 to bend inwards, and the inner ring of the discharge electrode 42 is equipped with third sawtooth discharge part
421.The shape of the card slot 12 is fan annular, and the width of the card slot 12 is identical as the thickness of side wrapped plate 43, the side wrapped plate
43 outer wall forms complete circular contour with the outer wall of printed circuit board 1 and matches with the inner cavity profile of electric cap shell.Institute
State the first pad 2 far from the second pad 3, third pad 4 side be equipped with the first arc-shaped edges 23, first pad 2 it is another
The both ends of side are equipped with the first semicircle weld part 21, the second semicircle weld part 22 being symmetric, one end of second pad 3
Equipped with the third semicircle weld part 31 that the second pad 3 is oppositely arranged, one end of the third pad 4 is equipped with welds with the second semicircle
The 4th semicircle weld part 411 that portion 22 is oppositely arranged.The two poles of the earth of first varistor 7 respectively with the first semicircle weld part
21, third semicircle weld part 31 be connected, the both ends of second varistor 8 respectively with the second pad 3, the 4th semicircle weld part
411 are connected, and first varistor 7 and the second varistor 8 are symmetrical set.First special-shaped electrode, 5, second abnormity
Electrode 6 is centrosymmetric setting, first special-shaped electrode 5, the second special-shaped electrode 6 outer rim collectively constitute rounded foreign steamer
Exterior feature, the first sawtooth of outer cause discharge part 51 of first special-shaped electrode 5 and smooth arc portion 52 form, and the third sawtooth is put
Electric portion 421 is located at the outside in smooth arc portion 52, between the two formation electrostatic leakage channel, outside second special-shaped electrode 6
Edge is equipped with the second sawtooth discharge part 61, between the first sawtooth discharge part 51, the second sawtooth discharge part 61 and electric cap shell
Form electrostatic leakage channel.
The course of work of the present invention:
A kind of varistor electrostatic protection component of the present invention, arranges three metal weldings by the front in printed circuit board
The two poles of the earth of disk, micromation patch type varistor electrostatic protection electronic device connect the first, second pad, make electrostatic protection component
Parallel circuit is constituted with electric initiating explosive device foot-human hair combing waste fire circuit, forms foot-foot electrostatic leakage channel；Patch type is miniaturized in another
The two poles of the earth of varistor electrostatic protection electronic device connect second, third pad, make electrostatic protection component and electric initiating explosive device foot-shell
Ignition circuit constitutes parallel circuit, forms electrostatic leakage channel between foot-shell；The reverse side of printed circuit board arrange two it is special-shaped
Zigzag discharge electrode for the protection of foot shell static discharge, and is able to achieve multiple electrostatic discharge protective, zigzag discharge electrode with it is quiet
Electric guard assembly parallel connection constitutes the effect of foot-shell electrostatic protection double insurance.It, will by the way that card slot is arranged on a printed circuit
Third pad is mounted on the structure in card slot, it is ensured that and the outer wall of side wrapped plate and the inner cavity of electric cap shell fit closely, and
And increase the contact area of third pad and electric cap shell, guarantee that the two contact is good, what entire electrostatic leakage channel was formed
It is evenly equipped with zigzag discharge part in annular region, can be realized multiple electrostatic discharge protective.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (5)
1. a kind of varistor electrostatic protection component, it is characterised in that: including printed circuit board (1), the first pad (2), second
Pad (3), third pad (4), the first special-shaped electrode (5), the second special-shaped electrode (6), the first varistor (7) and second are pressure-sensitive
Resistance (8), first pad (2), the second pad (3), third pad (4) are set to the one side of printed circuit board (1), described
First special-shaped electrode (5), the second special-shaped electrode (6) are set to the another side of printed circuit board (1), first varistor
(7) the two poles of the earth are mutually welded with the first pad (2), the second pad (3) respectively, the both ends of second varistor (8) respectively with
Second pad (3), third pad (4) mutually weld, and two metallization hole slots (11) are symmetrically arranged on the printed circuit board (1),
The both ends of one of metallization hole slot (11) are successively connected with the first pad (2), the first special-shaped electrode (5), another metal
The both ends for changing hole slot (11) are successively connected with the second pad (3), the second special-shaped electrode (6), the periphery of the printed circuit board (1)
It offers card slot (12), the third pad (4) is welded on card slot (12), and the third pad (4) includes pad (41), puts
Battery plate (42) and side wrapped plate (43), the outer wall of the pad (41) are extended with the side wrapped plate (43) bent downward, the side wrapped plate
(43) in insertion card slot (12), the outer wall of the side wrapped plate (43) and the outer wall of printed circuit board (1) form complete circular wheel
Exterior feature, the end of the side wrapped plate (43) are equipped with the discharge electrode (42) to bend inwards, and the inner ring of the discharge electrode (42) is equipped with third
Sawtooth discharge part (421).
2. a kind of varistor electrostatic protection component as described in claim 1, it is characterised in that: the shape of the card slot (12)
For fan annular, the width of the card slot (12) is identical as the thickness of side wrapped plate (43), the outer wall of the side wrapped plate (43) and printing
The outer wall of circuit board (1) forms complete circular contour and matches with the inner cavity profile of electric cap shell.
3. a kind of varistor electrostatic protection component as described in claim 1, it is characterised in that: first pad (2) is remote
Side from the second pad (3), third pad (4) is equipped with the first arc-shaped edges (23), and the two of the other side of first pad (2)
End is equipped with the first semicircle weld part (21), the second semicircle weld part (22) being symmetric, one end of second pad (3)
Equipped with the third semicircle weld part (31) that the second pad (3) is oppositely arranged, one end of the third pad (4) is equipped with and the second half
The 4th semicircle weld part (411) that circle weld part (22) is oppositely arranged.
4. a kind of varistor electrostatic protection component as claimed in claim 3, it is characterised in that: first varistor
(7) the two poles of the earth are connected with the first semicircle weld part (21), third semicircle weld part (31) respectively, second varistor (8)
Both ends be connected respectively with the second pad (3), the 4th semicircle weld part (411), first varistor (7) and second pressure-sensitive
Resistance (8) is symmetrical set.
5. a kind of varistor electrostatic protection component as described in claim 1, it is characterised in that: first special-shaped electrode
(5), the second special-shaped electrode (6) is centrosymmetric setting, and first special-shaped electrode (5), the outer rim of the second special-shaped electrode (6) are total
With the rounded outer profile of composition, outer cause the first sawtooth discharge part (51) and smooth arc of first special-shaped electrode (5)
Portion (52) composition, the third sawtooth discharge part (421) are located at the outside in smooth arc portion (52), form electrostatic between the two and let out
Channel is put, the outer rim of second special-shaped electrode (6) is equipped with the second sawtooth discharge part (61), the first sawtooth discharge part
(51), electrostatic leakage channel is formed between the second sawtooth discharge part (61) and electric cap shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598484.7A CN110418493B (en) | 2019-07-04 | 2019-07-04 | Piezoresistor electrostatic protection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598484.7A CN110418493B (en) | 2019-07-04 | 2019-07-04 | Piezoresistor electrostatic protection assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110418493A true CN110418493A (en) | 2019-11-05 |
| CN110418493B CN110418493B (en) | 2022-04-05 |
Family
ID=68360200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910598484.7A Expired - Fee Related CN110418493B (en) | 2019-07-04 | 2019-07-04 | Piezoresistor electrostatic protection assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110418493B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1204213A (en) * | 1982-09-09 | 1986-05-06 | Masahiro Takeda | Memory card having static electricity protection |
| MX9702543A (en) * | 1996-04-15 | 1998-03-31 | Morton Int Inc | High pressure resitant initiator with integral metal oxide varistor for electro-static discharge protection. |
| DE60219312D1 (en) * | 2001-06-29 | 2007-05-16 | Key Safety Systems Inc | IGNITION DEVICE WITH PRINTED ELECTROSTATIC DISCHARGE RADIO TRACK |
| KR100993518B1 (en) * | 2010-01-22 | 2010-11-10 | 이세현 | Thin filmed gas discharge arrester of smd type |
| CN202470918U (en) * | 2012-02-20 | 2012-10-03 | 秦志春 | Electromagnetic reinforcement semiconductor bridge detonator |
| CN103033100A (en) * | 2012-12-13 | 2013-04-10 | 北京全安密灵科技股份公司 | Anti-static structure of electronic detonator |
| CN203504879U (en) * | 2013-11-01 | 2014-03-26 | 广州市爱浦电子科技有限公司 | Antistatic and anti-surge PCB structure |
| CN104330001A (en) * | 2014-11-18 | 2015-02-04 | 北京理工大学 | High-effect electrostatic protective component of disk type voltage dependent resistor for bridge-wire electric detonator |
| US9829289B1 (en) * | 2013-03-28 | 2017-11-28 | The United States Of America As Represented By The Secretary Of The Army | Disposable, miniature internal optical ignition source |
-
2019
- 2019-07-04 CN CN201910598484.7A patent/CN110418493B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1204213A (en) * | 1982-09-09 | 1986-05-06 | Masahiro Takeda | Memory card having static electricity protection |
| MX9702543A (en) * | 1996-04-15 | 1998-03-31 | Morton Int Inc | High pressure resitant initiator with integral metal oxide varistor for electro-static discharge protection. |
| US5932832A (en) * | 1996-04-15 | 1999-08-03 | Autoliv Asp, Inc. | High pressure resistant initiator with integral metal oxide varistor for electro-static discharge protection |
| DE60219312D1 (en) * | 2001-06-29 | 2007-05-16 | Key Safety Systems Inc | IGNITION DEVICE WITH PRINTED ELECTROSTATIC DISCHARGE RADIO TRACK |
| KR100993518B1 (en) * | 2010-01-22 | 2010-11-10 | 이세현 | Thin filmed gas discharge arrester of smd type |
| CN202470918U (en) * | 2012-02-20 | 2012-10-03 | 秦志春 | Electromagnetic reinforcement semiconductor bridge detonator |
| CN103033100A (en) * | 2012-12-13 | 2013-04-10 | 北京全安密灵科技股份公司 | Anti-static structure of electronic detonator |
| US9829289B1 (en) * | 2013-03-28 | 2017-11-28 | The United States Of America As Represented By The Secretary Of The Army | Disposable, miniature internal optical ignition source |
| CN203504879U (en) * | 2013-11-01 | 2014-03-26 | 广州市爱浦电子科技有限公司 | Antistatic and anti-surge PCB structure |
| CN104330001A (en) * | 2014-11-18 | 2015-02-04 | 北京理工大学 | High-effect electrostatic protective component of disk type voltage dependent resistor for bridge-wire electric detonator |
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| Publication number | Publication date |
|---|---|
| CN110418493B (en) | 2022-04-05 |
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